src/HOL/Tools/Nitpick/nitpick.ML
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(*  Title:      HOL/Tools/Nitpick/nitpick.ML
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    Author:     Jasmin Blanchette, TU Muenchen
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    Copyright   2008, 2009, 2010
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Finite model generation for HOL formulas using Kodkod.
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*)
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signature NITPICK =
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sig
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  type styp = Nitpick_Util.styp
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  type term_postprocessor = Nitpick_Model.term_postprocessor
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  datatype mode = Auto_Try | Try | Normal | TPTP
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  type params =
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    {cards_assigns: (typ option * int list) list,
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     maxes_assigns: (styp option * int list) list,
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     iters_assigns: (styp option * int list) list,
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     bitss: int list,
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     bisim_depths: int list,
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     boxes: (typ option * bool option) list,
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     finitizes: (typ option * bool option) list,
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     monos: (typ option * bool option) list,
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     stds: (typ option * bool) list,
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     wfs: (styp option * bool option) list,
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     sat_solver: string,
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     blocking: bool,
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     falsify: bool,
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     debug: bool,
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     verbose: bool,
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     overlord: bool,
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     user_axioms: bool option,
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     assms: bool,
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     whacks: term list,
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     merge_type_vars: bool,
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     binary_ints: bool option,
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     destroy_constrs: bool,
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     specialize: bool,
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     star_linear_preds: bool,
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     total_consts: bool option,
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     needs: term list option,
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     peephole_optim: bool,
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     datatype_sym_break: int,
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     kodkod_sym_break: int,
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     timeout: Time.time option,
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     tac_timeout: Time.time option,
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     max_threads: int,
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     show_datatypes: bool,
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     show_skolems: bool,
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     show_consts: bool,
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     evals: term list,
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     formats: (term option * int list) list,
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     atomss: (typ option * string list) list,
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     max_potential: int,
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     max_genuine: int,
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     check_potential: bool,
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     check_genuine: bool,
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     batch_size: int,
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     expect: string}
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  val genuineN : string
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  val quasi_genuineN : string
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  val potentialN : string
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  val noneN : string
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  val unknownN : string
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  val register_frac_type : string -> (string * string) list -> theory -> theory
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  val unregister_frac_type : string -> theory -> theory
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  val register_codatatype : typ -> string -> styp list -> theory -> theory
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  val unregister_codatatype : typ -> theory -> theory
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  val register_term_postprocessor :
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    typ -> term_postprocessor -> theory -> theory
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  val unregister_term_postprocessor : typ -> theory -> theory
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  val pick_nits_in_term :
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    Proof.state -> params -> mode -> int -> int -> int -> (term * term) list
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    -> term list -> term -> string * Proof.state
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  val pick_nits_in_subgoal :
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    Proof.state -> params -> mode -> int -> int -> string * Proof.state
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end;
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structure Nitpick : NITPICK =
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struct
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open Nitpick_Util
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open Nitpick_HOL
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open Nitpick_Preproc
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open Nitpick_Mono
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open Nitpick_Scope
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open Nitpick_Peephole
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open Nitpick_Rep
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open Nitpick_Nut
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open Nitpick_Kodkod
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open Nitpick_Model
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structure KK = Kodkod
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datatype mode = Auto_Try | Try | Normal | TPTP
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fun is_mode_nt mode = (mode = Normal orelse mode = TPTP)
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type params =
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  {cards_assigns: (typ option * int list) list,
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   maxes_assigns: (styp option * int list) list,
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   iters_assigns: (styp option * int list) list,
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   bitss: int list,
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   bisim_depths: int list,
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   boxes: (typ option * bool option) list,
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   finitizes: (typ option * bool option) list,
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   monos: (typ option * bool option) list,
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   stds: (typ option * bool) list,
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   wfs: (styp option * bool option) list,
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   sat_solver: string,
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   blocking: bool,
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   falsify: bool,
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   debug: bool,
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   verbose: bool,
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   overlord: bool,
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   user_axioms: bool option,
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   assms: bool,
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   whacks: term list,
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   merge_type_vars: bool,
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   binary_ints: bool option,
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   destroy_constrs: bool,
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   specialize: bool,
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   star_linear_preds: bool,
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   total_consts: bool option,
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   needs: term list option,
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   peephole_optim: bool,
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   datatype_sym_break: int,
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   kodkod_sym_break: int,
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   timeout: Time.time option,
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   tac_timeout: Time.time option,
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   max_threads: int,
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   show_datatypes: bool,
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   show_skolems: bool,
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   show_consts: bool,
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   evals: term list,
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   formats: (term option * int list) list,
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   atomss: (typ option * string list) list,
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   max_potential: int,
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   max_genuine: int,
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   check_potential: bool,
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   check_genuine: bool,
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   batch_size: int,
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   expect: string}
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val genuineN = "genuine"
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val quasi_genuineN = "quasi_genuine"
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val potentialN = "potential"
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val noneN = "none"
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val unknownN = "unknown"
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(* TODO: eliminate these historical aliases *)
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val register_frac_type = Nitpick_HOL.register_frac_type_global
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val unregister_frac_type = Nitpick_HOL.unregister_frac_type_global
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val register_codatatype = Nitpick_HOL.register_codatatype_global
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val unregister_codatatype = Nitpick_HOL.unregister_codatatype_global
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val register_term_postprocessor =
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  Nitpick_Model.register_term_postprocessor_global
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val unregister_term_postprocessor =
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  Nitpick_Model.unregister_term_postprocessor_global
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type problem_extension =
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  {free_names: nut list,
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   sel_names: nut list,
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   nonsel_names: nut list,
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   rel_table: nut NameTable.table,
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   unsound: bool,
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   scope: scope}
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type rich_problem = KK.problem * problem_extension
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fun pretties_for_formulas _ _ [] = []
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  | pretties_for_formulas ctxt s ts =
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    [Pretty.str (s ^ plural_s_for_list ts ^ ":"),
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     Pretty.indent indent_size (Pretty.chunks
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         (map2 (fn j => fn t =>
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                   Pretty.block [t |> shorten_names_in_term
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                                   |> Syntax.pretty_term ctxt,
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                                 Pretty.str (if j = 1 then "." else ";")])
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               (length ts downto 1) ts))]
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fun install_java_message () =
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  "Nitpick requires Java Development Kit 1.6/1.7 via ISABELLE_JDK_HOME setting."
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fun install_kodkodi_message () =
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  "Nitpick requires the external Java program Kodkodi. To install it, download \
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  \the package from \"http://www21.in.tum.de/~blanchet/#software\" and add the \
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  \\"kodkodi-x.y.z\" directory's full path to " ^
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  Path.print (Path.expand (Path.explode "$ISABELLE_HOME_USER/etc/components")) ^
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  " on a line of its own."
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val max_unsound_delay_ms = 200
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val max_unsound_delay_percent = 2
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fun unsound_delay_for_timeout NONE = max_unsound_delay_ms
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  | unsound_delay_for_timeout (SOME timeout) =
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    Int.max (0, Int.min (max_unsound_delay_ms,
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                         Time.toMilliseconds timeout
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                         * max_unsound_delay_percent div 100))
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fun passed_deadline NONE = false
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  | passed_deadline (SOME time) = Time.compare (Time.now (), time) <> LESS
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fun none_true assigns = forall (not_equal (SOME true) o snd) assigns
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fun has_lonely_bool_var (@{const Pure.conjunction}
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                         $ (@{const Trueprop} $ Free _) $ _) = true
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  | has_lonely_bool_var _ = false
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val syntactic_sorts =
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  @{sort "{default,zero,one,plus,minus,uminus,times,inverse,abs,sgn,ord,equal}"} @
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  @{sort numeral}
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fun has_tfree_syntactic_sort (TFree (_, S as _ :: _)) =
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    subset (op =) (S, syntactic_sorts)
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  | has_tfree_syntactic_sort _ = false
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val has_syntactic_sorts = exists_type (exists_subtype has_tfree_syntactic_sort)
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fun plazy f = Pretty.blk (0, pstrs (f ()))
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fun pick_them_nits_in_term deadline state (params : params) mode i n step
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                           subst assm_ts orig_t =
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  let
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    val timer = Timer.startRealTimer ()
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    val thy = Proof.theory_of state
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    val ctxt = Proof.context_of state
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(* FIXME: reintroduce code before new release:
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    val nitpick_thy = Thy_Info.get_theory "Nitpick"
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    val _ = Theory.subthy (nitpick_thy, thy) orelse
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            error "You must import the theory \"Nitpick\" to use Nitpick"
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*)
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    val {cards_assigns, maxes_assigns, iters_assigns, bitss, bisim_depths,
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         boxes, finitizes, monos, stds, wfs, sat_solver, falsify, debug,
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         verbose, overlord, user_axioms, assms, whacks, merge_type_vars,
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         binary_ints, destroy_constrs, specialize, star_linear_preds,
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         total_consts, needs, peephole_optim, datatype_sym_break,
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         kodkod_sym_break, tac_timeout, max_threads, show_datatypes,
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         show_skolems, show_consts, evals, formats, atomss, max_potential,
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         max_genuine, check_potential, check_genuine, batch_size, ...} = params
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    val state_ref = Unsynchronized.ref state
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    fun pprint print =
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      if mode = Auto_Try then
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        Unsynchronized.change state_ref o Proof.goal_message o K
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        o Pretty.chunks o cons (Pretty.str "") o single
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        o Pretty.mark Isabelle_Markup.hilite
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      else
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        print o Pretty.string_of
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    val pprint_a = pprint Output.urgent_message
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    fun pprint_nt f = () |> is_mode_nt mode ? pprint Output.urgent_message o f
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    fun pprint_v f = () |> verbose ? pprint Output.urgent_message o f
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    fun pprint_d f = () |> debug ? pprint tracing o f
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    val print = pprint Output.urgent_message o curry Pretty.blk 0 o pstrs
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    fun print_t f = () |> mode = TPTP ? print o f
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(*
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    val print_g = pprint tracing o Pretty.str
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*)
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    val print_nt = pprint_nt o K o plazy
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    val print_v = pprint_v o K o plazy
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    fun check_deadline () =
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      if passed_deadline deadline then raise TimeLimit.TimeOut else ()
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    val assm_ts = if assms orelse mode <> Normal then assm_ts else []
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    val _ =
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      if step = 0 then
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        print_nt (fn () => "Nitpicking formula...")
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      else
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        pprint_nt (fn () => Pretty.chunks (
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            pretties_for_formulas ctxt ("Nitpicking " ^
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                (if i <> 1 orelse n <> 1 then
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                   "subgoal " ^ string_of_int i ^ " of " ^ string_of_int n
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                 else
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                   "goal")) [Logic.list_implies (assm_ts, orig_t)]))
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    val _ = print_v (enclose "Timestamp: " "." o Date.fmt "%H:%M:%S"
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                     o Date.fromTimeLocal o Time.now)
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    val neg_t = if falsify then Logic.mk_implies (orig_t, @{prop False})
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                else orig_t
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    val conj_ts = neg_t :: assm_ts @ evals @ these needs
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    val tfree_table =
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      if merge_type_vars then merged_type_var_table_for_terms thy conj_ts
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      else []
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    val merge_tfrees = merge_type_vars_in_term thy merge_type_vars tfree_table
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    val neg_t = neg_t |> merge_tfrees
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    val assm_ts = assm_ts |> map merge_tfrees
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    val evals = evals |> map merge_tfrees
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    val needs = needs |> Option.map (map merge_tfrees)
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    val conj_ts = neg_t :: assm_ts @ evals @ these needs
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    val original_max_potential = max_potential
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    val original_max_genuine = max_genuine
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    val max_bisim_depth = fold Integer.max bisim_depths ~1
38240
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    val case_names = case_const_names ctxt stds
42415
10accf397ab6 use "Spec_Rules" for finding axioms -- more reliable and cleaner
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    val defs = all_defs_of thy subst
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    val nondefs = all_nondefs_of ctxt subst
41791
01d722707a36 always unfold constant defitions marked with "nitpick_def" -- to prevent unfolding, there's already "nitpick_simp"
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    val def_tables = const_def_tables ctxt subst defs
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    val nondef_table = const_nondef_table nondefs
35335
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    val simp_table = Unsynchronized.ref (const_simp_table ctxt subst)
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    val psimp_table = const_psimp_table ctxt subst
35807
e4d1b5cbd429 added support for "specification" and "ax_specification" constructs to Nitpick
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    val choice_spec_table = const_choice_spec_table ctxt subst
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    val nondefs =
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      nondefs |> filter_out (is_choice_spec_axiom thy choice_spec_table)
41791
01d722707a36 always unfold constant defitions marked with "nitpick_def" -- to prevent unfolding, there's already "nitpick_simp"
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    val intro_table = inductive_intro_table ctxt subst def_tables
33192
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    val ground_thm_table = ground_theorem_table thy
38240
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    val ersatz_table = ersatz_table ctxt
41007
75275c796b46 use ML SAT solvers up to a certain time limit, then switch to faster solvers with a timeout -- this becomes necessary with the new, more powerful monotonicity calculus
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    val hol_ctxt as {wf_cache, ...} =
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      {thy = thy, ctxt = ctxt, max_bisim_depth = max_bisim_depth, boxes = boxes,
34982
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       stds = stds, wfs = wfs, user_axioms = user_axioms, debug = debug,
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       whacks = whacks, binary_ints = binary_ints,
3d1d928dce50 added "whack"
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       destroy_constrs = destroy_constrs, specialize = specialize,
41871
394eef237bd1 lower threshold for implicitly using "nitpick_simp" for predicate definitions when "total_consts" is on
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       star_linear_preds = star_linear_preds, total_consts = total_consts,
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       needs = needs, tac_timeout = tac_timeout, evals = evals,
41871
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       case_names = case_names, def_tables = def_tables,
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       nondef_table = nondef_table, nondefs = nondefs, simp_table = simp_table,
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       psimp_table = psimp_table, choice_spec_table = choice_spec_table,
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       intro_table = intro_table, ground_thm_table = ground_thm_table,
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       ersatz_table = ersatz_table, skolems = Unsynchronized.ref [],
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   315
       special_funs = Unsynchronized.ref [],
33580
45c33e97cb86 added datatype constructor cache in Nitpick (to speed up the scope enumeration) and never test more than 4096 scopes
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diff changeset
   316
       unrolled_preds = Unsynchronized.ref [], wf_cache = Unsynchronized.ref [],
45c33e97cb86 added datatype constructor cache in Nitpick (to speed up the scope enumeration) and never test more than 4096 scopes
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       constr_cache = Unsynchronized.ref []}
41789
7c7b68b06c1a don't distinguish between "fixes" and other free variables -- this confuses users
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    val pseudo_frees = []
41869
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    val real_frees = fold Term.add_frees conj_ts []
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    val _ = null (fold Term.add_tvars conj_ts []) orelse
9e367f1c9570 robust handling of types occurring in "eval" and "preconstr" options but not in the goal
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   321
            error "Nitpick cannot handle goals with schematic type variables."
41875
e3cd0dce9b1a renamed "preconstr" option "need"
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diff changeset
   322
    val (nondef_ts, def_ts, need_ts, got_all_mono_user_axioms,
41803
ef13e3b7cbaf more work on "fix_datatype_vals" optimization (renamed "preconstruct")
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diff changeset
   323
         no_poly_user_axioms, binarize) =
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diff changeset
   324
      preprocess_formulas hol_ctxt assm_ts neg_t
33192
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   325
    val got_all_user_axioms =
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   326
      got_all_mono_user_axioms andalso no_poly_user_axioms
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   327
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   328
    fun print_wf (x, (gfp, wf)) =
47560
e30323bfc93c added SZS status wrappers in TPTP mode
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   329
      pprint_nt (fn () => Pretty.blk (0,
33192
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   330
          pstrs ("The " ^ (if gfp then "co" else "") ^ "inductive predicate \"")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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   331
          @ Syntax.pretty_term ctxt (Const x) ::
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   332
          pstrs (if wf then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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diff changeset
   333
                   "\" was proved well-founded. Nitpick can compute it \
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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diff changeset
   334
                   \efficiently."
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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diff changeset
   335
                 else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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diff changeset
   336
                   "\" could not be proved well-founded. Nitpick might need to \
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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diff changeset
   337
                   \unroll it.")))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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   338
    val _ = if verbose then List.app print_wf (!wf_cache) else ()
38171
5f2ea92319e0 fix soundness bug w.r.t. "Suc" with "binary_ints"
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diff changeset
   339
    val das_wort_formula = if falsify then "Negated conjecture" else "Formula"
33192
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   340
    val _ =
35386
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diff changeset
   341
      pprint_d (fn () => Pretty.chunks
38171
5f2ea92319e0 fix soundness bug w.r.t. "Suc" with "binary_ints"
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diff changeset
   342
          (pretties_for_formulas ctxt das_wort_formula [hd nondef_ts] @
35386
45a4e19d3ebd more work on the new monotonicity stuff in Nitpick
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diff changeset
   343
           pretties_for_formulas ctxt "Relevant definitional axiom" def_ts @
45a4e19d3ebd more work on the new monotonicity stuff in Nitpick
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diff changeset
   344
           pretties_for_formulas ctxt "Relevant nondefinitional axiom"
45a4e19d3ebd more work on the new monotonicity stuff in Nitpick
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diff changeset
   345
                                 (tl nondef_ts)))
45a4e19d3ebd more work on the new monotonicity stuff in Nitpick
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diff changeset
   346
    val _ = List.app (ignore o Term.type_of) (nondef_ts @ def_ts)
33192
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   347
            handle TYPE (_, Ts, ts) =>
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diff changeset
   348
                   raise TYPE ("Nitpick.pick_them_nits_in_term", Ts, ts)
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   349
41801
ed77524f3429 first steps in implementing "fix_datatype_vals" optimization
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diff changeset
   350
    val nondef_us = nondef_ts |> map (nut_from_term hol_ctxt Eq)
ed77524f3429 first steps in implementing "fix_datatype_vals" optimization
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diff changeset
   351
    val def_us = def_ts |> map (nut_from_term hol_ctxt DefEq)
41875
e3cd0dce9b1a renamed "preconstr" option "need"
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diff changeset
   352
    val need_us = need_ts |> map (nut_from_term hol_ctxt Eq)
33558
a2db56854b83 optimized Nitpick's encoding and rendering of datatypes whose constructors don't appear in the problem
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parents: 33556
diff changeset
   353
    val (free_names, const_names) =
41888
79f837c2e33b don't forget to look for constants appearing only in "need" option -- otherwise we get exceptions in "the_name" later on
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diff changeset
   354
      fold add_free_and_const_names (nondef_us @ def_us @ need_us) ([], [])
33558
a2db56854b83 optimized Nitpick's encoding and rendering of datatypes whose constructors don't appear in the problem
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diff changeset
   355
    val (sel_names, nonsel_names) =
a2db56854b83 optimized Nitpick's encoding and rendering of datatypes whose constructors don't appear in the problem
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diff changeset
   356
      List.partition (is_sel o nickname_of) const_names
46114
e6d33b200f42 remove subtlety whose justification got lost in time -- the new code is possibly less precise but sounder
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parents: 46103
diff changeset
   357
    val sound_finitizes = none_true finitizes
34982
7b8c366e34a2 added support for nonstandard models to Nitpick (based on an idea by Koen Claessen) and did other fixes to Nitpick
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diff changeset
   358
    val standard = forall snd stds
33558
a2db56854b83 optimized Nitpick's encoding and rendering of datatypes whose constructors don't appear in the problem
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diff changeset
   359
(*
41888
79f837c2e33b don't forget to look for constants appearing only in "need" option -- otherwise we get exceptions in "the_name" later on
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   360
    val _ =
79f837c2e33b don't forget to look for constants appearing only in "need" option -- otherwise we get exceptions in "the_name" later on
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diff changeset
   361
      List.app (print_g o string_for_nut ctxt) (nondef_us @ def_us @ need_us)
33558
a2db56854b83 optimized Nitpick's encoding and rendering of datatypes whose constructors don't appear in the problem
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diff changeset
   362
*)
a2db56854b83 optimized Nitpick's encoding and rendering of datatypes whose constructors don't appear in the problem
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diff changeset
   363
34121
5e831d805118 get rid of polymorphic equality in Nitpick's code + a few minor cleanups
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parents: 34039
diff changeset
   364
    val unique_scope = forall (curry (op =) 1 o length o snd) cards_assigns
35385
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
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parents: 35384
diff changeset
   365
    fun monotonicity_message Ts extra =
38188
7f12a03c513c better "Pretty" handling
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parents: 38182
diff changeset
   366
      let val pretties = map (pretty_maybe_quote o pretty_for_type ctxt) Ts in
7f12a03c513c better "Pretty" handling
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parents: 38182
diff changeset
   367
        Pretty.blk (0,
7f12a03c513c better "Pretty" handling
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parents: 38182
diff changeset
   368
          pstrs ("The type" ^ plural_s_for_list pretties ^ " ") @
7f12a03c513c better "Pretty" handling
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parents: 38182
diff changeset
   369
          pretty_serial_commas "and" pretties @
7f12a03c513c better "Pretty" handling
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parents: 38182
diff changeset
   370
          pstrs (" " ^
42959
ee829022381d use \<emdash> rather than \<midarrow>
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diff changeset
   371
                 (if none_true monos then
ee829022381d use \<emdash> rather than \<midarrow>
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diff changeset
   372
                    "passed the monotonicity test"
ee829022381d use \<emdash> rather than \<midarrow>
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diff changeset
   373
                  else
ee829022381d use \<emdash> rather than \<midarrow>
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diff changeset
   374
                    (if length pretties = 1 then "is" else "are") ^
ee829022381d use \<emdash> rather than \<midarrow>
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diff changeset
   375
                    " considered monotonic") ^
ee829022381d use \<emdash> rather than \<midarrow>
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diff changeset
   376
                 ". " ^ extra))
35385
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
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diff changeset
   377
      end
35665
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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parents: 35408
diff changeset
   378
    fun is_type_fundamentally_monotonic T =
38240
a44d108a8d39 local versions of Nitpick.register_xxx functions
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parents: 38214
diff changeset
   379
      (is_datatype ctxt stds T andalso not (is_quot_type ctxt T) andalso
37256
0dca1ec52999 thread along context instead of theory for typedef lookup
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parents: 37213
diff changeset
   380
       (not (is_pure_typedef ctxt T) orelse is_univ_typedef ctxt T)) orelse
38240
a44d108a8d39 local versions of Nitpick.register_xxx functions
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parents: 38214
diff changeset
   381
      is_number_type ctxt T orelse is_bit_type T
35385
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
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parents: 35384
diff changeset
   382
    fun is_type_actually_monotonic T =
41001
11715564e2ad removed old baggage from monotonicity calculus -- the "calculus" option didn't really work anyway because of on-the-fly simplifications
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parents: 40993
diff changeset
   383
      formulas_monotonic hol_ctxt binarize T (nondef_ts, def_ts)
35665
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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parents: 35408
diff changeset
   384
    fun is_type_kind_of_monotonic T =
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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parents: 35408
diff changeset
   385
      case triple_lookup (type_match thy) monos T of
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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parents: 35408
diff changeset
   386
        SOME (SOME false) => false
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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parents: 35408
diff changeset
   387
      | _ => is_type_actually_monotonic T
34936
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   388
    fun is_type_monotonic T =
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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parents:
diff changeset
   389
      unique_scope orelse
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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parents:
diff changeset
   390
      case triple_lookup (type_match thy) monos T of
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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parents:
diff changeset
   391
        SOME (SOME b) => b
35665
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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parents: 35408
diff changeset
   392
      | _ => is_type_fundamentally_monotonic T orelse
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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parents: 35408
diff changeset
   393
             is_type_actually_monotonic T
41793
c7a2669ae75d tweaked Nitpick based on C++ memory model example
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parents: 41791
diff changeset
   394
    fun is_deep_datatype_finitizable T =
c7a2669ae75d tweaked Nitpick based on C++ memory model example
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parents: 41791
diff changeset
   395
      triple_lookup (type_match thy) finitizes T = SOME (SOME true)
41052
3db267a01c1d remove the "fin_fun" optimization in Nitpick -- it was always a hack and didn't help much
blanchet
parents: 41051
diff changeset
   396
    fun is_shallow_datatype_finitizable (T as Type (@{type_name fun_box}, _)) =
35665
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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parents: 35408
diff changeset
   397
        is_type_kind_of_monotonic T
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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parents: 35408
diff changeset
   398
      | is_shallow_datatype_finitizable T =
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
blanchet
parents: 35408
diff changeset
   399
        case triple_lookup (type_match thy) finitizes T of
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
blanchet
parents: 35408
diff changeset
   400
          SOME (SOME b) => b
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
blanchet
parents: 35408
diff changeset
   401
        | _ => is_type_kind_of_monotonic T
35385
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
blanchet
parents: 35384
diff changeset
   402
    fun is_datatype_deep T =
46103
1e35730bd869 always treat "unit" as a deep datatype, so that we get a good interaction with the record syntax (2.7 of the Nitpick manual)
blanchet
parents: 46086
diff changeset
   403
      not standard orelse T = @{typ unit} orelse T = nat_T orelse
1e35730bd869 always treat "unit" as a deep datatype, so that we get a good interaction with the record syntax (2.7 of the Nitpick manual)
blanchet
parents: 46086
diff changeset
   404
      is_word_type T orelse
35385
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
blanchet
parents: 35384
diff changeset
   405
      exists (curry (op =) T o domain_type o type_of) sel_names
35386
45a4e19d3ebd more work on the new monotonicity stuff in Nitpick
blanchet
parents: 35385
diff changeset
   406
    val all_Ts = ground_types_in_terms hol_ctxt binarize (nondef_ts @ def_ts)
35408
b48ab741683b modernized structure Term_Ord;
wenzelm
parents: 35386
diff changeset
   407
                 |> sort Term_Ord.typ_ord
38214
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   408
    val _ =
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   409
      if verbose andalso binary_ints = SOME true andalso
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   410
         exists (member (op =) [nat_T, int_T]) all_Ts then
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   411
        print_v (K "The option \"binary_ints\" will be ignored because of the \
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   412
                   \presence of rationals, reals, \"Suc\", \"gcd\", or \"lcm\" \
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   413
                   \in the problem or because of the \"non_std\" option.")
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   414
      else
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   415
        ()
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   416
    val _ =
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
   417
      if mode = Normal andalso
38214
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   418
         exists (fn Type (@{type_name Datatype.node}, _) => true | _ => false)
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   419
                all_Ts then
47560
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   420
        print_nt (K ("Warning: The problem involves directly or indirectly the \
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   421
                     \internal type " ^ quote @{type_name Datatype.node} ^
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   422
                     ". This type is very Nitpick-unfriendly, and its presence \
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   423
                     \usually indicates either a failure of abstraction or a \
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   424
                     \quirk in Nitpick."))
38214
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   425
      else
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   426
        ()
34982
7b8c366e34a2 added support for nonstandard models to Nitpick (based on an idea by Koen Claessen) and did other fixes to Nitpick
blanchet
parents: 34938
diff changeset
   427
    val (mono_Ts, nonmono_Ts) = List.partition is_type_monotonic all_Ts
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   428
    val _ =
34936
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   429
      if verbose andalso not unique_scope then
35665
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
blanchet
parents: 35408
diff changeset
   430
        case filter_out is_type_fundamentally_monotonic mono_Ts of
34936
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   431
          [] => ()
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   432
        | interesting_mono_Ts =>
38188
7f12a03c513c better "Pretty" handling
blanchet
parents: 38182
diff changeset
   433
          pprint_v (K (monotonicity_message interesting_mono_Ts
7f12a03c513c better "Pretty" handling
blanchet
parents: 38182
diff changeset
   434
                          "Nitpick might be able to skip some scopes."))
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   435
      else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   436
        ()
35385
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
blanchet
parents: 35384
diff changeset
   437
    val (deep_dataTs, shallow_dataTs) =
37256
0dca1ec52999 thread along context instead of theory for typedef lookup
blanchet
parents: 37213
diff changeset
   438
      all_Ts |> filter (is_datatype ctxt stds)
0dca1ec52999 thread along context instead of theory for typedef lookup
blanchet
parents: 37213
diff changeset
   439
             |> List.partition is_datatype_deep
35385
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
blanchet
parents: 35384
diff changeset
   440
    val finitizable_dataTs =
41793
c7a2669ae75d tweaked Nitpick based on C++ memory model example
blanchet
parents: 41791
diff changeset
   441
      (deep_dataTs |> filter_out (is_finite_type hol_ctxt)
c7a2669ae75d tweaked Nitpick based on C++ memory model example
blanchet
parents: 41791
diff changeset
   442
                   |> filter is_deep_datatype_finitizable) @
c7a2669ae75d tweaked Nitpick based on C++ memory model example
blanchet
parents: 41791
diff changeset
   443
      (shallow_dataTs |> filter_out (is_finite_type hol_ctxt)
c7a2669ae75d tweaked Nitpick based on C++ memory model example
blanchet
parents: 41791
diff changeset
   444
                      |> filter is_shallow_datatype_finitizable)
35385
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
blanchet
parents: 35384
diff changeset
   445
    val _ =
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
blanchet
parents: 35384
diff changeset
   446
      if verbose andalso not (null finitizable_dataTs) then
38188
7f12a03c513c better "Pretty" handling
blanchet
parents: 38182
diff changeset
   447
        pprint_v (K (monotonicity_message finitizable_dataTs
7f12a03c513c better "Pretty" handling
blanchet
parents: 38182
diff changeset
   448
                         "Nitpick can use a more precise finite encoding."))
35385
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
blanchet
parents: 35384
diff changeset
   449
      else
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
blanchet
parents: 35384
diff changeset
   450
        ()
35183
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   451
    (* This detection code is an ugly hack. Fortunately, it is used only to
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   452
       provide a hint to the user. *)
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   453
    fun is_struct_induct_step (name, (Rule_Cases.Case {fixes, assumes, ...}, _)) =
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   454
      not (null fixes) andalso
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   455
      exists (String.isSuffix ".hyps" o fst) assumes andalso
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   456
      exists (exists (curry (op =) name o shortest_name o fst)
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   457
              o datatype_constrs hol_ctxt) deep_dataTs
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   458
    val likely_in_struct_induct_step =
42361
23f352990944 modernized structure Proof_Context;
wenzelm
parents: 41995
diff changeset
   459
      exists is_struct_induct_step (Proof_Context.cases_of ctxt)
35183
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   460
    val _ = if standard andalso likely_in_struct_induct_step then
47560
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   461
              pprint_nt (fn () => Pretty.blk (0,
34982
7b8c366e34a2 added support for nonstandard models to Nitpick (based on an idea by Koen Claessen) and did other fixes to Nitpick
blanchet
parents: 34938
diff changeset
   462
                  pstrs "Hint: To check that the induction hypothesis is \
35177
168041f24f80 various cosmetic changes to Nitpick
blanchet
parents: 35075
diff changeset
   463
                        \general enough, try this command: " @
45666
d83797ef0d2d separate module for concrete Isabelle markup;
wenzelm
parents: 44395
diff changeset
   464
                  [Pretty.mark Isabelle_Markup.sendback (Pretty.blk (0,
35183
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   465
                       pstrs ("nitpick [non_std, show_all]")))] @ pstrs "."))
34982
7b8c366e34a2 added support for nonstandard models to Nitpick (based on an idea by Koen Claessen) and did other fixes to Nitpick
blanchet
parents: 34938
diff changeset
   466
            else
7b8c366e34a2 added support for nonstandard models to Nitpick (based on an idea by Koen Claessen) and did other fixes to Nitpick
blanchet
parents: 34938
diff changeset
   467
              ()
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   468
(*
36128
a3d8d5329438 make Nitpick output everything to tracing in debug mode;
blanchet
parents: 36126
diff changeset
   469
    val _ = print_g "Monotonic types:"
a3d8d5329438 make Nitpick output everything to tracing in debug mode;
blanchet
parents: 36126
diff changeset
   470
    val _ = List.app (print_g o string_for_type ctxt) mono_Ts
a3d8d5329438 make Nitpick output everything to tracing in debug mode;
blanchet
parents: 36126
diff changeset
   471
    val _ = print_g "Nonmonotonic types:"
a3d8d5329438 make Nitpick output everything to tracing in debug mode;
blanchet
parents: 36126
diff changeset
   472
    val _ = List.app (print_g o string_for_type ctxt) nonmono_Ts
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   473
*)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   474
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   475
    val incremental = Int.max (max_potential, max_genuine) >= 2
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   476
    val actual_sat_solver =
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   477
      if sat_solver <> "smart" then
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   478
        if incremental andalso
34936
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   479
           not (member (op =) (Kodkod_SAT.configured_sat_solvers true)
35333
f61de25f71f9 distinguish between Kodkodi warnings and errors in Nitpick;
blanchet
parents: 35280
diff changeset
   480
                       sat_solver) then
47560
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   481
          (print_nt (K ("An incremental SAT solver is required: \"SAT4J\" will \
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   482
                        \be used instead of " ^ quote sat_solver ^ "."));
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   483
           "SAT4J")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   484
        else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   485
          sat_solver
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   486
      else
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   487
        Kodkod_SAT.smart_sat_solver_name incremental
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   488
    val _ =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   489
      if sat_solver = "smart" then
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   490
        print_v (fn () =>
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   491
            "Using SAT solver " ^ quote actual_sat_solver ^ ". The following" ^
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   492
            (if incremental then " incremental " else " ") ^
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   493
            "solvers are configured: " ^
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   494
            commas_quote (Kodkod_SAT.configured_sat_solvers incremental) ^ ".")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   495
      else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   496
        ()
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   497
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   498
    val too_big_scopes = Unsynchronized.ref []
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   499
35185
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   500
    fun problem_for_scope unsound
34124
c4628a1dcf75 added support for binary nat/int representation to Nitpick
blanchet
parents: 34123
diff changeset
   501
            (scope as {card_assigns, bits, bisim_depth, datatypes, ofs, ...}) =
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   502
      let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   503
        val _ = not (exists (fn other => scope_less_eq other scope)
34936
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   504
                            (!too_big_scopes)) orelse
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   505
                raise TOO_LARGE ("Nitpick.pick_them_nits_in_term.\
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   506
                                 \problem_for_scope", "too large scope")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   507
(*
36128
a3d8d5329438 make Nitpick output everything to tracing in debug mode;
blanchet
parents: 36126
diff changeset
   508
        val _ = print_g "Offsets:"
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   509
        val _ = List.app (fn (T, j0) =>
36128
a3d8d5329438 make Nitpick output everything to tracing in debug mode;
blanchet
parents: 36126
diff changeset
   510
                             print_g (string_for_type ctxt T ^ " = " ^
a3d8d5329438 make Nitpick output everything to tracing in debug mode;
blanchet
parents: 36126
diff changeset
   511
                                    string_of_int j0))
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   512
                         (Typtab.dest ofs)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   513
*)
41858
37ce158d6266 if "total_consts" is set, report cex's as quasi-genuine
blanchet
parents: 41856
diff changeset
   514
        val effective_total_consts =
41856
7244589c8ccc added "total_consts" option
blanchet
parents: 41803
diff changeset
   515
          case total_consts of
7244589c8ccc added "total_consts" option
blanchet
parents: 41803
diff changeset
   516
            SOME b => b
7244589c8ccc added "total_consts" option
blanchet
parents: 41803
diff changeset
   517
          | NONE => forall (is_exact_type datatypes true) all_Ts
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   518
        val main_j0 = offset_of_type ofs bool_T
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   519
        val (nat_card, nat_j0) = spec_of_type scope nat_T
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   520
        val (int_card, int_j0) = spec_of_type scope int_T
34936
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   521
        val _ = (nat_j0 = main_j0 andalso int_j0 = main_j0) orelse
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   522
                raise BAD ("Nitpick.pick_them_nits_in_term.problem_for_scope",
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   523
                           "bad offsets")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   524
        val kk = kodkod_constrs peephole_optim nat_card int_card main_j0
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   525
        val (free_names, rep_table) =
38170
d74b66ec02ce handle free variables even more gracefully;
blanchet
parents: 38169
diff changeset
   526
          choose_reps_for_free_vars scope pseudo_frees free_names
d74b66ec02ce handle free variables even more gracefully;
blanchet
parents: 38169
diff changeset
   527
                                    NameTable.empty
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   528
        val (sel_names, rep_table) = choose_reps_for_all_sels scope rep_table
38170
d74b66ec02ce handle free variables even more gracefully;
blanchet
parents: 38169
diff changeset
   529
        val (nonsel_names, rep_table) =
41858
37ce158d6266 if "total_consts" is set, report cex's as quasi-genuine
blanchet
parents: 41856
diff changeset
   530
          choose_reps_for_consts scope effective_total_consts nonsel_names
37ce158d6266 if "total_consts" is set, report cex's as quasi-genuine
blanchet
parents: 41856
diff changeset
   531
                                 rep_table
38182
747f8077b09a more helpful message
blanchet
parents: 38171
diff changeset
   532
        val (guiltiest_party, min_highest_arity) =
747f8077b09a more helpful message
blanchet
parents: 38171
diff changeset
   533
          NameTable.fold (fn (name, R) => fn (s, n) =>
747f8077b09a more helpful message
blanchet
parents: 38171
diff changeset
   534
                             let val n' = arity_of_rep R in
747f8077b09a more helpful message
blanchet
parents: 38171
diff changeset
   535
                               if n' > n then (nickname_of name, n') else (s, n)
747f8077b09a more helpful message
blanchet
parents: 38171
diff changeset
   536
                             end) rep_table ("", 1)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   537
        val min_univ_card =
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   538
          NameTable.fold (Integer.max o min_univ_card_of_rep o snd) rep_table
34126
8a2c5d7aff51 polished Nitpick's binary integer support etc.;
blanchet
parents: 34124
diff changeset
   539
                         (univ_card nat_card int_card main_j0 [] KK.True)
41897
c24e7fd17464 perform no arity check in debug mode so that we get to see the Kodkod problem
blanchet
parents: 41888
diff changeset
   540
        val _ = if debug then ()
c24e7fd17464 perform no arity check in debug mode so that we get to see the Kodkod problem
blanchet
parents: 41888
diff changeset
   541
                else check_arity guiltiest_party min_univ_card min_highest_arity
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   542
41802
7592a165fa0b more work on "fix_datatype_vals"
blanchet
parents: 41801
diff changeset
   543
        val def_us =
7592a165fa0b more work on "fix_datatype_vals"
blanchet
parents: 41801
diff changeset
   544
          def_us |> map (choose_reps_in_nut scope unsound rep_table true)
7592a165fa0b more work on "fix_datatype_vals"
blanchet
parents: 41801
diff changeset
   545
        val nondef_us =
7592a165fa0b more work on "fix_datatype_vals"
blanchet
parents: 41801
diff changeset
   546
          nondef_us |> map (choose_reps_in_nut scope unsound rep_table false)
41875
e3cd0dce9b1a renamed "preconstr" option "need"
blanchet
parents: 41872
diff changeset
   547
        val need_us =
e3cd0dce9b1a renamed "preconstr" option "need"
blanchet
parents: 41872
diff changeset
   548
          need_us |> map (choose_reps_in_nut scope unsound rep_table false)
33745
daf236998f82 comment out debugging code in Nitpick
blanchet
parents: 33744
diff changeset
   549
(*
36128
a3d8d5329438 make Nitpick output everything to tracing in debug mode;
blanchet
parents: 36126
diff changeset
   550
        val _ = List.app (print_g o string_for_nut ctxt)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   551
                         (free_names @ sel_names @ nonsel_names @
41888
79f837c2e33b don't forget to look for constants appearing only in "need" option -- otherwise we get exceptions in "the_name" later on
blanchet
parents: 41876
diff changeset
   552
                          nondef_us @ def_us @ need_us)
33745
daf236998f82 comment out debugging code in Nitpick
blanchet
parents: 33744
diff changeset
   553
*)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   554
        val (free_rels, pool, rel_table) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   555
          rename_free_vars free_names initial_pool NameTable.empty
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   556
        val (sel_rels, pool, rel_table) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   557
          rename_free_vars sel_names pool rel_table
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   558
        val (other_rels, pool, rel_table) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   559
          rename_free_vars nonsel_names pool rel_table
41802
7592a165fa0b more work on "fix_datatype_vals"
blanchet
parents: 41801
diff changeset
   560
        val nondef_us = nondef_us |> map (rename_vars_in_nut pool rel_table)
7592a165fa0b more work on "fix_datatype_vals"
blanchet
parents: 41801
diff changeset
   561
        val def_us = def_us |> map (rename_vars_in_nut pool rel_table)
41875
e3cd0dce9b1a renamed "preconstr" option "need"
blanchet
parents: 41872
diff changeset
   562
        val need_us = need_us |> map (rename_vars_in_nut pool rel_table)
35386
45a4e19d3ebd more work on the new monotonicity stuff in Nitpick
blanchet
parents: 35385
diff changeset
   563
        val nondef_fs = map (kodkod_formula_from_nut ofs kk) nondef_us
35280
54ab4921f826 fixed a few bugs in Nitpick and removed unreferenced variables
blanchet
parents: 35220
diff changeset
   564
        val def_fs = map (kodkod_formula_from_nut ofs kk) def_us
35386
45a4e19d3ebd more work on the new monotonicity stuff in Nitpick
blanchet
parents: 35385
diff changeset
   565
        val formula = fold (fold s_and) [def_fs, nondef_fs] KK.True
35185
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   566
        val comment = (if unsound then "unsound" else "sound") ^ "\n" ^
37146
f652333bbf8e renamed structure PrintMode to Print_Mode, keeping the old name as legacy alias for some time;
wenzelm
parents: 36913
diff changeset
   567
                      Print_Mode.setmp [] multiline_string_for_scope scope
34998
5e492a862b34 four changes to Nitpick:
blanchet
parents: 34982
diff changeset
   568
        val kodkod_sat_solver =
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   569
          Kodkod_SAT.sat_solver_spec actual_sat_solver |> snd
34124
c4628a1dcf75 added support for binary nat/int representation to Nitpick
blanchet
parents: 34123
diff changeset
   570
        val bit_width = if bits = 0 then 16 else bits + 1
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   571
        val delay =
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   572
          if unsound then
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   573
            Option.map (fn time => Time.- (time, Time.now ())) deadline
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   574
            |> unsound_delay_for_timeout
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   575
          else
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   576
            0
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   577
        val settings = [("solver", commas_quote kodkod_sat_solver),
34124
c4628a1dcf75 added support for binary nat/int representation to Nitpick
blanchet
parents: 34123
diff changeset
   578
                        ("bit_width", string_of_int bit_width),
38124
6538e25cf5dd started implementation of custom sym break
blanchet
parents: 38123
diff changeset
   579
                        ("symmetry_breaking", string_of_int kodkod_sym_break),
36386
2132f15b366f Fruhjahrsputz: remove three mostly useless Nitpick options
blanchet
parents: 36385
diff changeset
   580
                        ("sharing", "3"),
2132f15b366f Fruhjahrsputz: remove three mostly useless Nitpick options
blanchet
parents: 36385
diff changeset
   581
                        ("flatten", "false"),
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   582
                        ("delay", signed_string_of_int delay)]
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   583
        val plain_rels = free_rels @ other_rels
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   584
        val plain_bounds = map (bound_for_plain_rel ctxt debug) plain_rels
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   585
        val plain_axioms = map (declarative_axiom_for_plain_rel kk) plain_rels
41995
03c2d29ec790 optimize Kodkod bounds when "need" is specified
blanchet
parents: 41993
diff changeset
   586
        val need_vals =
03c2d29ec790 optimize Kodkod bounds when "need" is specified
blanchet
parents: 41993
diff changeset
   587
          map (fn dtype as {typ, ...} =>
03c2d29ec790 optimize Kodkod bounds when "need" is specified
blanchet
parents: 41993
diff changeset
   588
                  (typ, needed_values_for_datatype need_us ofs dtype)) datatypes
03c2d29ec790 optimize Kodkod bounds when "need" is specified
blanchet
parents: 41993
diff changeset
   589
        val sel_bounds =
03c2d29ec790 optimize Kodkod bounds when "need" is specified
blanchet
parents: 41993
diff changeset
   590
          map (bound_for_sel_rel ctxt debug need_vals datatypes) sel_rels
35190
ce653cc27a94 make sure that Nitpick uses binary notation consistently if "binary_ints" is enabled
blanchet
parents: 35185
diff changeset
   591
        val dtype_axioms =
41995
03c2d29ec790 optimize Kodkod bounds when "need" is specified
blanchet
parents: 41993
diff changeset
   592
          declarative_axioms_for_datatypes hol_ctxt binarize need_us need_vals
41801
ed77524f3429 first steps in implementing "fix_datatype_vals" optimization
blanchet
parents: 41793
diff changeset
   593
              datatype_sym_break bits ofs kk rel_table datatypes
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   594
        val declarative_axioms = plain_axioms @ dtype_axioms
35220
2bcdae5f4fdb added support for nonstandard "nat"s to Nitpick and fixed bugs in binary "nat"s and "int"s
blanchet
parents: 35190
diff changeset
   595
        val univ_card = Int.max (univ_card nat_card int_card main_j0
2bcdae5f4fdb added support for nonstandard "nat"s to Nitpick and fixed bugs in binary "nat"s and "int"s
blanchet
parents: 35190
diff changeset
   596
                                     (plain_bounds @ sel_bounds) formula,
2bcdae5f4fdb added support for nonstandard "nat"s to Nitpick and fixed bugs in binary "nat"s and "int"s
blanchet
parents: 35190
diff changeset
   597
                                 main_j0 |> bits > 0 ? Integer.add (bits + 1))
38126
8031d099379a added manual symmetry breaking for datatypes
blanchet
parents: 38124
diff changeset
   598
        val (built_in_bounds, built_in_axioms) =
39345
062c10ff848c remove unreferenced identifiers
blanchet
parents: 39316
diff changeset
   599
          bounds_and_axioms_for_built_in_rels_in_formulas debug univ_card
062c10ff848c remove unreferenced identifiers
blanchet
parents: 39316
diff changeset
   600
              nat_card int_card main_j0 (formula :: declarative_axioms)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   601
        val bounds = built_in_bounds @ plain_bounds @ sel_bounds
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   602
                     |> not debug ? merge_bounds
38126
8031d099379a added manual symmetry breaking for datatypes
blanchet
parents: 38124
diff changeset
   603
        val axioms = built_in_axioms @ declarative_axioms
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   604
        val highest_arity =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   605
          fold Integer.max (map (fst o fst) (maps fst bounds)) 0
38126
8031d099379a added manual symmetry breaking for datatypes
blanchet
parents: 38124
diff changeset
   606
        val formula = fold_rev s_and axioms formula
34124
c4628a1dcf75 added support for binary nat/int representation to Nitpick
blanchet
parents: 34123
diff changeset
   607
        val _ = if bits = 0 then () else check_bits bits formula
41897
c24e7fd17464 perform no arity check in debug mode so that we get to see the Kodkod problem
blanchet
parents: 41888
diff changeset
   608
        val _ = if debug orelse formula = KK.False then ()
38182
747f8077b09a more helpful message
blanchet
parents: 38171
diff changeset
   609
                else check_arity "" univ_card highest_arity
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   610
      in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   611
        SOME ({comment = comment, settings = settings, univ_card = univ_card,
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   612
               tuple_assigns = [], bounds = bounds,
35280
54ab4921f826 fixed a few bugs in Nitpick and removed unreferenced variables
blanchet
parents: 35220
diff changeset
   613
               int_bounds = if bits = 0 then sequential_int_bounds univ_card
54ab4921f826 fixed a few bugs in Nitpick and removed unreferenced variables
blanchet
parents: 35220
diff changeset
   614
                            else pow_of_two_int_bounds bits main_j0,
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   615
               expr_assigns = [], formula = formula},
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   616
              {free_names = free_names, sel_names = sel_names,
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   617
               nonsel_names = nonsel_names, rel_table = rel_table,
35386
45a4e19d3ebd more work on the new monotonicity stuff in Nitpick
blanchet
parents: 35385
diff changeset
   618
               unsound = unsound, scope = scope})
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   619
      end
34124
c4628a1dcf75 added support for binary nat/int representation to Nitpick
blanchet
parents: 34123
diff changeset
   620
      handle TOO_LARGE (loc, msg) =>
34936
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   621
             if loc = "Nitpick_Kodkod.check_arity" andalso
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   622
                not (Typtab.is_empty ofs) then
35185
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   623
               problem_for_scope unsound
35190
ce653cc27a94 make sure that Nitpick uses binary notation consistently if "binary_ints" is enabled
blanchet
parents: 35185
diff changeset
   624
                   {hol_ctxt = hol_ctxt, binarize = binarize,
ce653cc27a94 make sure that Nitpick uses binary notation consistently if "binary_ints" is enabled
blanchet
parents: 35185
diff changeset
   625
                    card_assigns = card_assigns, bits = bits,
ce653cc27a94 make sure that Nitpick uses binary notation consistently if "binary_ints" is enabled
blanchet
parents: 35185
diff changeset
   626
                    bisim_depth = bisim_depth, datatypes = datatypes,
ce653cc27a94 make sure that Nitpick uses binary notation consistently if "binary_ints" is enabled
blanchet
parents: 35185
diff changeset
   627
                    ofs = Typtab.empty}
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   628
             else if loc = "Nitpick.pick_them_nits_in_term.\
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   629
                           \problem_for_scope" then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   630
               NONE
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   631
             else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   632
               (Unsynchronized.change too_big_scopes (cons scope);
41992
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   633
                print_v (fn () =>
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   634
                    "Limit reached: " ^ msg ^ ". Skipping " ^
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   635
                    (if unsound then "potential component of " else "") ^
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   636
                    "scope.");
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   637
                NONE)
35280
54ab4921f826 fixed a few bugs in Nitpick and removed unreferenced variables
blanchet
parents: 35220
diff changeset
   638
           | TOO_SMALL (_, msg) =>
41992
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   639
             (print_v (fn () =>
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   640
                  "Limit reached: " ^ msg ^ ". Skipping " ^
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   641
                  (if unsound then "potential component of " else "") ^
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   642
                  "scope.");
34124
c4628a1dcf75 added support for binary nat/int representation to Nitpick
blanchet
parents: 34123
diff changeset
   643
              NONE)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   644
34982
7b8c366e34a2 added support for nonstandard models to Nitpick (based on an idea by Koen Claessen) and did other fixes to Nitpick
blanchet
parents: 34938
diff changeset
   645
    val das_wort_model =
7b8c366e34a2 added support for nonstandard models to Nitpick (based on an idea by Koen Claessen) and did other fixes to Nitpick
blanchet
parents: 34938
diff changeset
   646
      (if falsify then "counterexample" else "model")
7b8c366e34a2 added support for nonstandard models to Nitpick (based on an idea by Koen Claessen) and did other fixes to Nitpick
blanchet
parents: 34938
diff changeset
   647
      |> not standard ? prefix "nonstandard "
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   648
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   649
    val scopes = Unsynchronized.ref []
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   650
    val generated_scopes = Unsynchronized.ref []
35185
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   651
    val generated_problems = Unsynchronized.ref ([] : rich_problem list)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   652
    val checked_problems = Unsynchronized.ref (SOME [])
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   653
    val met_potential = Unsynchronized.ref 0
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   654
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   655
    fun update_checked_problems problems =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   656
      List.app (Unsynchronized.change checked_problems o Option.map o cons
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   657
                o nth problems)
35333
f61de25f71f9 distinguish between Kodkodi warnings and errors in Nitpick;
blanchet
parents: 35280
diff changeset
   658
    fun show_kodkod_warning "" = ()
47560
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   659
      | show_kodkod_warning s = print_nt (fn () => "Kodkod warning: " ^ s ^ ".")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   660
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   661
    fun print_and_check_model genuine bounds
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   662
            ({free_names, sel_names, nonsel_names, rel_table, scope, ...}
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   663
             : problem_extension) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   664
      let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   665
        val (reconstructed_model, codatatypes_ok) =
41993
bd6296de1432 reintroduced "show_skolems" option -- useful when too many Skolems are displayed
blanchet
parents: 41992
diff changeset
   666
          reconstruct_hol_model
bd6296de1432 reintroduced "show_skolems" option -- useful when too many Skolems are displayed
blanchet
parents: 41992
diff changeset
   667
              {show_datatypes = show_datatypes, show_skolems = show_skolems,
bd6296de1432 reintroduced "show_skolems" option -- useful when too many Skolems are displayed
blanchet
parents: 41992
diff changeset
   668
               show_consts = show_consts}
38170
d74b66ec02ce handle free variables even more gracefully;
blanchet
parents: 38169
diff changeset
   669
              scope formats atomss real_frees pseudo_frees free_names sel_names
d74b66ec02ce handle free variables even more gracefully;
blanchet
parents: 38169
diff changeset
   670
              nonsel_names rel_table bounds
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   671
        val genuine_means_genuine =
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   672
          got_all_user_axioms andalso none_true wfs andalso
41858
37ce158d6266 if "total_consts" is set, report cex's as quasi-genuine
blanchet
parents: 41856
diff changeset
   673
          sound_finitizes andalso total_consts <> SOME true andalso
37ce158d6266 if "total_consts" is set, report cex's as quasi-genuine
blanchet
parents: 41856
diff changeset
   674
          codatatypes_ok
38169
b51784515471 optimize local "def"s by treating them as definitions
blanchet
parents: 38126
diff changeset
   675
        fun assms_prop () = Logic.mk_conjunction_list (neg_t :: assm_ts)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   676
      in
47560
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   677
        (print_t (fn () =>
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   678
             "% SZS status " ^
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   679
             (if genuine then
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   680
                if falsify then "CounterSatisfiable" else "Satisfiable"
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   681
              else
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   682
                "Unknown") ^ "\n" ^
47562
a72239723ae8 tuned SZS status output
blanchet
parents: 47560
diff changeset
   683
             "% SZS output start FiniteModel");
47560
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   684
         pprint_a (Pretty.chunks
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   685
             [Pretty.blk (0,
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
   686
                  (pstrs ((if mode = Auto_Try then "Auto " else "") ^
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
   687
                          "Nitpick found a" ^
41992
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   688
                          (if not genuine then " potentially spurious "
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   689
                           else if genuine_means_genuine then " "
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   690
                           else " quasi genuine ") ^ das_wort_model) @
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   691
                   (case pretties_for_scope scope verbose of
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   692
                      [] => []
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   693
                    | pretties => pstrs " for " @ pretties) @
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   694
                   [Pretty.str ":\n"])),
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   695
              Pretty.indent indent_size reconstructed_model]);
47564
8074b18d8d76 more standard SZS output
blanchet
parents: 47562
diff changeset
   696
         print_t (K "% SZS output end FiniteModel");
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   697
         if genuine then
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   698
           (if check_genuine andalso standard then
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   699
              case prove_hol_model scope tac_timeout free_names sel_names
38169
b51784515471 optimize local "def"s by treating them as definitions
blanchet
parents: 38126
diff changeset
   700
                                   rel_table bounds (assms_prop ()) of
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   701
                SOME true =>
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   702
                print ("Confirmation by \"auto\": The above " ^
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   703
                       das_wort_model ^ " is really genuine.")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   704
              | SOME false =>
34982
7b8c366e34a2 added support for nonstandard models to Nitpick (based on an idea by Koen Claessen) and did other fixes to Nitpick
blanchet
parents: 34938
diff changeset
   705
                if genuine_means_genuine then
7b8c366e34a2 added support for nonstandard models to Nitpick (based on an idea by Koen Claessen) and did other fixes to Nitpick
blanchet
parents: 34938
diff changeset
   706
                  error ("A supposedly genuine " ^ das_wort_model ^ " was \
7b8c366e34a2 added support for nonstandard models to Nitpick (based on an idea by Koen Claessen) and did other fixes to Nitpick
blanchet
parents: 34938
diff changeset
   707
                         \shown to be spurious by \"auto\".\nThis should never \
7b8c366e34a2 added support for nonstandard models to Nitpick (based on an idea by Koen Claessen) and did other fixes to Nitpick
blanchet
parents: 34938
diff changeset
   708
                         \happen.\nPlease send a bug report to blanchet\
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   709
                         \te@in.tum.de.")
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   710
                 else
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   711
                   print ("Refutation by \"auto\": The above " ^
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   712
                          das_wort_model ^ " is spurious.")
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   713
               | NONE => print "No confirmation by \"auto\"."
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   714
            else
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   715
              ();
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   716
            if not standard andalso likely_in_struct_induct_step then
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   717
              print "The existence of a nonstandard model suggests that the \
36126
00d550b6cfd4 cosmetics
blanchet
parents: 35968
diff changeset
   718
                    \induction hypothesis is not general enough or may even be \
00d550b6cfd4 cosmetics
blanchet
parents: 35968
diff changeset
   719
                    \wrong. See the Nitpick manual's \"Inductive Properties\" \
00d550b6cfd4 cosmetics
blanchet
parents: 35968
diff changeset
   720
                    \section for details (\"isabelle doc nitpick\")."
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   721
            else
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   722
              ();
41048
d5ebe94248ad added a hint when the user obviously just forgot a colon after the lemma's name
blanchet
parents: 41007
diff changeset
   723
            if has_lonely_bool_var orig_t then
d5ebe94248ad added a hint when the user obviously just forgot a colon after the lemma's name
blanchet
parents: 41007
diff changeset
   724
              print "Hint: Maybe you forgot a colon after the lemma's name?"
d5ebe94248ad added a hint when the user obviously just forgot a colon after the lemma's name
blanchet
parents: 41007
diff changeset
   725
            else if has_syntactic_sorts orig_t then
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   726
              print "Hint: Maybe you forgot a type constraint?"
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   727
            else
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   728
              ();
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   729
            if not genuine_means_genuine then
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   730
              if no_poly_user_axioms then
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   731
                let
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   732
                  val options =
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   733
                    [] |> not got_all_mono_user_axioms
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   734
                          ? cons ("user_axioms", "\"true\"")
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   735
                       |> not (none_true wfs)
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   736
                          ? cons ("wf", "\"smart\" or \"false\"")
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   737
                       |> not sound_finitizes
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   738
                          ? cons ("finitize", "\"smart\" or \"false\"")
41858
37ce158d6266 if "total_consts" is set, report cex's as quasi-genuine
blanchet
parents: 41856
diff changeset
   739
                       |> total_consts = SOME true
37ce158d6266 if "total_consts" is set, report cex's as quasi-genuine
blanchet
parents: 41856
diff changeset
   740
                          ? cons ("total_consts", "\"smart\" or \"false\"")
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   741
                       |> not codatatypes_ok
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   742
                          ? cons ("bisim_depth", "a nonnegative value")
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   743
                  val ss =
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   744
                    map (fn (name, value) => quote name ^ " set to " ^ value)
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   745
                        options
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   746
                in
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   747
                  print ("Try again with " ^
41872
10fd9e5d58ba added missing spaces in output
blanchet
parents: 41871
diff changeset
   748
                         space_implode " " (serial_commas "and" ss) ^
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   749
                         " to confirm that the " ^ das_wort_model ^
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   750
                         " is genuine.")
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   751
                end
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   752
              else
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   753
                print ("Nitpick is unable to guarantee the authenticity of \
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   754
                       \the " ^ das_wort_model ^ " in the presence of \
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   755
                       \polymorphic axioms.")
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   756
            else
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   757
              ();
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   758
            NONE)
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   759
         else
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   760
           if not genuine then
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   761
             (Unsynchronized.inc met_potential;
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   762
              if check_potential then
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   763
                let
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   764
                  val status = prove_hol_model scope tac_timeout free_names
38169
b51784515471 optimize local "def"s by treating them as definitions
blanchet
parents: 38126
diff changeset
   765
                                               sel_names rel_table bounds
b51784515471 optimize local "def"s by treating them as definitions
blanchet
parents: 38126
diff changeset
   766
                                               (assms_prop ())
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   767
                in
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   768
                  (case status of
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   769
                     SOME true => print ("Confirmation by \"auto\": The \
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   770
                                         \above " ^ das_wort_model ^
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   771
                                         " is genuine.")
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   772
                   | SOME false => print ("Refutation by \"auto\": The above " ^
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   773
                                          das_wort_model ^ " is spurious.")
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   774
                   | NONE => print "No confirmation by \"auto\".");
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   775
                  status
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   776
                end
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   777
              else
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   778
                NONE)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   779
           else
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   780
             NONE)
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   781
        |> pair genuine_means_genuine
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   782
      end
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   783
    fun solve_any_problem (found_really_genuine, max_potential, max_genuine,
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   784
                           donno) first_time problems =
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   785
      let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   786
        val max_potential = Int.max (0, max_potential)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   787
        val max_genuine = Int.max (0, max_genuine)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   788
        fun print_and_check genuine (j, bounds) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   789
          print_and_check_model genuine bounds (snd (nth problems j))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   790
        val max_solutions = max_potential + max_genuine
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   791
                            |> not incremental ? Integer.min 1
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   792
      in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   793
        if max_solutions <= 0 then
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   794
          (found_really_genuine, 0, 0, donno)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   795
        else
41793
c7a2669ae75d tweaked Nitpick based on C++ memory model example
blanchet
parents: 41791
diff changeset
   796
          case KK.solve_any_problem debug overlord deadline max_threads
c7a2669ae75d tweaked Nitpick based on C++ memory model example
blanchet
parents: 41791
diff changeset
   797
                                    max_solutions (map fst problems) of
35696
17ae461d6133 show nice error message in Nitpick when "java" is not available
blanchet
parents: 35671
diff changeset
   798
            KK.JavaNotInstalled =>
47560
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   799
            (print_nt install_java_message;
35696
17ae461d6133 show nice error message in Nitpick when "java" is not available
blanchet
parents: 35671
diff changeset
   800
             (found_really_genuine, max_potential, max_genuine, donno + 1))
38516
307669429dc1 gracefully handle the case where the JVM is too old in Nitpick
blanchet
parents: 38240
diff changeset
   801
          | KK.JavaTooOld =>
47560
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   802
            (print_nt install_java_message;
38516
307669429dc1 gracefully handle the case where the JVM is too old in Nitpick
blanchet
parents: 38240
diff changeset
   803
             (found_really_genuine, max_potential, max_genuine, donno + 1))
35696
17ae461d6133 show nice error message in Nitpick when "java" is not available
blanchet
parents: 35671
diff changeset
   804
          | KK.KodkodiNotInstalled =>
47560
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   805
            (print_nt install_kodkodi_message;
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   806
             (found_really_genuine, max_potential, max_genuine, donno + 1))
35333
f61de25f71f9 distinguish between Kodkodi warnings and errors in Nitpick;
blanchet
parents: 35280
diff changeset
   807
          | KK.Normal ([], unsat_js, s) =>
f61de25f71f9 distinguish between Kodkodi warnings and errors in Nitpick;
blanchet
parents: 35280
diff changeset
   808
            (update_checked_problems problems unsat_js; show_kodkod_warning s;
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   809
             (found_really_genuine, max_potential, max_genuine, donno))
35333
f61de25f71f9 distinguish between Kodkodi warnings and errors in Nitpick;
blanchet
parents: 35280
diff changeset
   810
          | KK.Normal (sat_ps, unsat_js, s) =>
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   811
            let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   812
              val (lib_ps, con_ps) =
35185
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   813
                List.partition (#unsound o snd o nth problems o fst) sat_ps
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   814
            in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   815
              update_checked_problems problems (unsat_js @ map fst lib_ps);
35333
f61de25f71f9 distinguish between Kodkodi warnings and errors in Nitpick;
blanchet
parents: 35280
diff changeset
   816
              show_kodkod_warning s;
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   817
              if null con_ps then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   818
                let
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   819
                  val genuine_codes =
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   820
                    lib_ps |> take max_potential
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   821
                           |> map (print_and_check false)
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   822
                           |> filter (curry (op =) (SOME true) o snd)
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   823
                  val found_really_genuine =
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   824
                    found_really_genuine orelse exists fst genuine_codes
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   825
                  val num_genuine = length genuine_codes
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   826
                  val max_genuine = max_genuine - num_genuine
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   827
                  val max_potential = max_potential
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   828
                                      - (length lib_ps - num_genuine)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   829
                in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   830
                  if max_genuine <= 0 then
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   831
                    (found_really_genuine, 0, 0, donno)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   832
                  else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   833
                    let
35185
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   834
                      (* "co_js" is the list of sound problems whose unsound
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   835
                         pendants couldn't be satisfied and hence that most
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   836
                         probably can't be satisfied themselves. *)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   837
                      val co_js =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   838
                        map (fn j => j - 1) unsat_js
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   839
                        |> filter (fn j =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   840
                                      j >= 0 andalso
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   841
                                      scopes_equivalent
35814
234eaa508359 added one-entry cache around Kodkod invocation
blanchet
parents: 35807
diff changeset
   842
                                          (#scope (snd (nth problems j)),
234eaa508359 added one-entry cache around Kodkod invocation
blanchet
parents: 35807
diff changeset
   843
                                           #scope (snd (nth problems (j + 1)))))
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   844
                      val bye_js = sort_distinct int_ord (map fst sat_ps @
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   845
                                                          unsat_js @ co_js)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   846
                      val problems =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   847
                        problems |> filter_out_indices bye_js
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   848
                                 |> max_potential <= 0
35185
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   849
                                    ? filter_out (#unsound o snd)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   850
                    in
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   851
                      solve_any_problem (found_really_genuine, max_potential,
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   852
                                         max_genuine, donno) false problems
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   853
                    end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   854
                end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   855
              else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   856
                let
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   857
                  val genuine_codes =
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   858
                    con_ps |> take max_genuine
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   859
                           |> map (print_and_check true)
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   860
                  val max_genuine = max_genuine - length genuine_codes
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   861
                  val found_really_genuine =
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   862
                    found_really_genuine orelse exists fst genuine_codes
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   863
                in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   864
                  if max_genuine <= 0 orelse not first_time then
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   865
                    (found_really_genuine, 0, max_genuine, donno)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   866
                  else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   867
                    let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   868
                      val bye_js = sort_distinct int_ord
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   869
                                                 (map fst sat_ps @ unsat_js)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   870
                      val problems =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   871
                        problems |> filter_out_indices bye_js
35185
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   872
                                 |> filter_out (#unsound o snd)
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   873
                    in
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   874
                      solve_any_problem (found_really_genuine, 0, max_genuine,
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   875
                                         donno) false problems
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   876
                    end
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   877
                end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   878
            end
34126
8a2c5d7aff51 polished Nitpick's binary integer support etc.;
blanchet
parents: 34124
diff changeset
   879
          | KK.TimedOut unsat_js =>
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   880
            (update_checked_problems problems unsat_js; raise TimeLimit.TimeOut)
34126
8a2c5d7aff51 polished Nitpick's binary integer support etc.;
blanchet
parents: 34124
diff changeset
   881
          | KK.Error (s, unsat_js) =>
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   882
            (update_checked_problems problems unsat_js;
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   883
             print_v (K ("Kodkod error: " ^ s ^ "."));
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   884
             (found_really_genuine, max_potential, max_genuine, donno + 1))
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   885
      end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   886
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   887
    fun run_batch j n scopes (found_really_genuine, max_potential, max_genuine,
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   888
                              donno) =
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   889
      let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   890
        val _ =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   891
          if null scopes then
47560
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   892
            print_nt (K "The scope specification is inconsistent.")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   893
          else if verbose then
47560
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   894
            pprint_nt (fn () => Pretty.chunks
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   895
                [Pretty.blk (0,
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   896
                     pstrs ((if n > 1 then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   897
                               "Batch " ^ string_of_int (j + 1) ^ " of " ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   898
                               signed_string_of_int n ^ ": "
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   899
                             else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   900
                               "") ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   901
                            "Trying " ^ string_of_int (length scopes) ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   902
                            " scope" ^ plural_s_for_list scopes ^ ":")),
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   903
                 Pretty.indent indent_size
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   904
                     (Pretty.chunks (map2
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   905
                          (fn j => fn scope =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   906
                              Pretty.block (
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   907
                                  (case pretties_for_scope scope true of
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   908
                                     [] => [Pretty.str "Empty"]
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   909
                                   | pretties => pretties) @
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   910
                                  [Pretty.str (if j = 1 then "." else ";")]))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   911
                          (length scopes downto 1) scopes))])
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   912
          else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   913
            ()
35280
54ab4921f826 fixed a few bugs in Nitpick and removed unreferenced variables
blanchet
parents: 35220
diff changeset
   914
        fun add_problem_for_scope (scope, unsound) (problems, donno) =
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   915
          (check_deadline ();
35185
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   916
           case problem_for_scope unsound scope of
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   917
             SOME problem =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   918
             (problems
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   919
              |> (null problems orelse
35814
234eaa508359 added one-entry cache around Kodkod invocation
blanchet
parents: 35807
diff changeset
   920
                  not (KK.problems_equivalent (fst problem, fst (hd problems))))
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   921
                  ? cons problem, donno)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   922
           | NONE => (problems, donno + 1))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   923
        val (problems, donno) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   924
          fold add_problem_for_scope
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   925
               (map_product pair scopes
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   926
                    ((if max_genuine > 0 then [false] else []) @
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   927
                     (if max_potential > 0 then [true] else [])))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   928
               ([], donno)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   929
        val _ = Unsynchronized.change generated_problems (append problems)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   930
        val _ = Unsynchronized.change generated_scopes (append scopes)
35185
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   931
        val _ =
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   932
          if j + 1 = n then
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   933
            let
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   934
              val (unsound_problems, sound_problems) =
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   935
                List.partition (#unsound o snd) (!generated_problems)
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   936
            in
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   937
              if not (null sound_problems) andalso
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   938
                 forall (KK.is_problem_trivially_false o fst)
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   939
                        sound_problems then
47560
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   940
                print_nt (fn () =>
44395
d39aedffba08 more precise warning
blanchet
parents: 43602
diff changeset
   941
                    "Warning: The conjecture " ^
d39aedffba08 more precise warning
blanchet
parents: 43602
diff changeset
   942
                    (if falsify then "either trivially holds"
d39aedffba08 more precise warning
blanchet
parents: 43602
diff changeset
   943
                     else "is either trivially unsatisfiable") ^
d39aedffba08 more precise warning
blanchet
parents: 43602
diff changeset
   944
                    " for the given scopes or lies outside Nitpick's supported \
35384
88dbcfe75c45 cosmetics
blanchet
parents: 35335
diff changeset
   945
                    \fragment." ^
35185
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   946
                    (if exists (not o KK.is_problem_trivially_false o fst)
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   947
                               unsound_problems then
41992
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   948
                       " Only potentially spurious " ^ das_wort_model ^
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   949
                       "s may be found."
35185
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   950
                     else
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   951
                       ""))
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   952
              else
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   953
                ()
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   954
            end
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   955
          else
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   956
            ()
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   957
      in
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   958
        solve_any_problem (found_really_genuine, max_potential, max_genuine,
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   959
                           donno) true (rev problems)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   960
      end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   961
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   962
    fun scope_count (problems : rich_problem list) scope =
35814
234eaa508359 added one-entry cache around Kodkod invocation
blanchet
parents: 35807
diff changeset
   963
      length (filter (curry scopes_equivalent scope o #scope o snd) problems)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   964
    fun excipit did_so_and_so =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   965
      let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   966
        val do_filter =
35185
9b8f351cced6 added yet another hint to Nitpick's output, this time warning about problems for which nothing was effectively tested
blanchet
parents: 35183
diff changeset
   967
          if !met_potential = max_potential then filter_out (#unsound o snd)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   968
          else I
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   969
        val total = length (!scopes)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   970
        val unsat =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   971
          fold (fn scope =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   972
                   case scope_count (do_filter (!generated_problems)) scope of
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   973
                     0 => I
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   974
                   | n =>
33556
cba22e2999d5 renamed Nitpick option "coalesce_type_vars" to "merge_type_vars" (shorter) and cleaned up old hacks that are no longer necessary
blanchet
parents: 33233
diff changeset
   975
                     scope_count (do_filter (these (!checked_problems)))
cba22e2999d5 renamed Nitpick option "coalesce_type_vars" to "merge_type_vars" (shorter) and cleaned up old hacks that are no longer necessary
blanchet
parents: 33233
diff changeset
   976
                                 scope = n
cba22e2999d5 renamed Nitpick option "coalesce_type_vars" to "merge_type_vars" (shorter) and cleaned up old hacks that are no longer necessary
blanchet
parents: 33233
diff changeset
   977
                     ? Integer.add 1) (!generated_scopes) 0
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   978
      in
47560
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   979
        (if mode = TPTP then "% SZS status Unknown\n" else "") ^
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   980
        "Nitpick " ^ did_so_and_so ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   981
        (if is_some (!checked_problems) andalso total > 0 then
39361
blanchet
parents: 39359
diff changeset
   982
           " " ^ string_of_int unsat ^ " of " ^ string_of_int total ^ " scope"
blanchet
parents: 39359
diff changeset
   983
           ^ plural_s total
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   984
         else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   985
           "") ^ "."
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   986
      end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   987
37704
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   988
    val (skipped, the_scopes) =
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   989
      all_scopes hol_ctxt binarize cards_assigns maxes_assigns iters_assigns
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   990
                 bitss bisim_depths mono_Ts nonmono_Ts deep_dataTs
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   991
                 finitizable_dataTs
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   992
    val _ = if skipped > 0 then
47560
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   993
              print_nt (fn () => "Too many scopes. Skipping " ^
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   994
                                 string_of_int skipped ^ " scope" ^
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   995
                                 plural_s skipped ^
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   996
                                 ". (Consider using \"mono\" or \
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
   997
                                 \\"merge_type_vars\" to prevent this.)")
37704
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   998
            else
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   999
              ()
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
  1000
    val _ = scopes := the_scopes
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
  1001
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
  1002
    fun run_batches _ _ []
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
  1003
                    (found_really_genuine, max_potential, max_genuine, donno) =
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1004
        if donno > 0 andalso max_genuine > 0 then
47560
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
  1005
          (print_nt (fn () => excipit "checked"); unknownN)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1006
        else if max_genuine = original_max_genuine then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1007
          if max_potential = original_max_potential then
47562
a72239723ae8 tuned SZS status output
blanchet
parents: 47560
diff changeset
  1008
            (print_t (K "% SZS status Unknown");
47560
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
  1009
             print_nt (fn () =>
34982
7b8c366e34a2 added support for nonstandard models to Nitpick (based on an idea by Koen Claessen) and did other fixes to Nitpick
blanchet
parents: 34938
diff changeset
  1010
                 "Nitpick found no " ^ das_wort_model ^ "." ^
35183
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
  1011
                 (if not standard andalso likely_in_struct_induct_step then
34982
7b8c366e34a2 added support for nonstandard models to Nitpick (based on an idea by Koen Claessen) and did other fixes to Nitpick
blanchet
parents: 34938
diff changeset
  1012
                    " This suggests that the induction hypothesis might be \
7b8c366e34a2 added support for nonstandard models to Nitpick (based on an idea by Koen Claessen) and did other fixes to Nitpick
blanchet
parents: 34938
diff changeset
  1013
                    \general enough to prove this subgoal."
7b8c366e34a2 added support for nonstandard models to Nitpick (based on an idea by Koen Claessen) and did other fixes to Nitpick
blanchet
parents: 34938
diff changeset
  1014
                  else
43020
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 42959
diff changeset
  1015
                    "")); if skipped > 0 then unknownN else noneN)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1016
          else
47560
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
  1017
            (print_nt (fn () =>
38123
36f649db4a6c clarify Nitpick's output in case of a potential counterexample
blanchet
parents: 37928
diff changeset
  1018
                 excipit ("could not find a" ^
36f649db4a6c clarify Nitpick's output in case of a potential counterexample
blanchet
parents: 37928
diff changeset
  1019
                          (if max_genuine = 1 then
36f649db4a6c clarify Nitpick's output in case of a potential counterexample
blanchet
parents: 37928
diff changeset
  1020
                             " better " ^ das_wort_model ^ "."
36f649db4a6c clarify Nitpick's output in case of a potential counterexample
blanchet
parents: 37928
diff changeset
  1021
                           else
36f649db4a6c clarify Nitpick's output in case of a potential counterexample
blanchet
parents: 37928
diff changeset
  1022
                             "ny better " ^ das_wort_model ^ "s.") ^
36f649db4a6c clarify Nitpick's output in case of a potential counterexample
blanchet
parents: 37928
diff changeset
  1023
                          " It checked"));
43020
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 42959
diff changeset
  1024
             potentialN)
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
  1025
        else if found_really_genuine then
43020
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 42959
diff changeset
  1026
          genuineN
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1027
        else
43020
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 42959
diff changeset
  1028
          quasi_genuineN
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1029
      | run_batches j n (batch :: batches) z =
35671
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
  1030
        let val (z as (_, _, max_genuine, _)) = run_batch j n batch z in
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1031
          run_batches (j + 1) n (if max_genuine > 0 then batches else []) z
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1032
        end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1033
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1034
    val batches = batch_list batch_size (!scopes)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1035
    val outcome_code =
40411
36b7ed41ca9f removed explicit "Interrupt" handling for conformity with async model -- unfortunately the user loses the information about how many scopes were checked, but this needs to be retought with the new interface anyway
blanchet
parents: 40381
diff changeset
  1036
      run_batches 0 (length batches) batches
36b7ed41ca9f removed explicit "Interrupt" handling for conformity with async model -- unfortunately the user loses the information about how many scopes were checked, but this needs to be retought with the new interface anyway
blanchet
parents: 40381
diff changeset
  1037
                  (false, max_potential, max_genuine, 0)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1038
      handle TimeLimit.TimeOut =>
47560
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
  1039
             (print_nt (fn () => excipit "ran out of time after checking");
43020
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 42959
diff changeset
  1040
              if !met_potential > 0 then potentialN else unknownN)
40341
03156257040f standardize on seconds for Nitpick and Sledgehammer timeouts
blanchet
parents: 40223
diff changeset
  1041
    val _ = print_v (fn () =>
03156257040f standardize on seconds for Nitpick and Sledgehammer timeouts
blanchet
parents: 40223
diff changeset
  1042
                "Total time: " ^ string_from_time (Timer.checkRealTimer timer) ^
03156257040f standardize on seconds for Nitpick and Sledgehammer timeouts
blanchet
parents: 40223
diff changeset
  1043
                ".")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1044
  in (outcome_code, !state_ref) end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1045
41051
2ed1b971fc20 give the inner timeout mechanism a chance, since it gives more precise information to the user
blanchet
parents: 41048
diff changeset
  1046
(* Give the inner timeout a chance. *)
41772
27d4c768cf20 make Nitpick's timeout mechanism somewhat more reliable/friendly;
blanchet
parents: 41278
diff changeset
  1047
val timeout_bonus = seconds 1.0
41051
2ed1b971fc20 give the inner timeout mechanism a chance, since it gives more precise information to the user
blanchet
parents: 41048
diff changeset
  1048
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
  1049
fun pick_nits_in_term state (params as {debug, timeout, expect, ...}) mode i n
38169
b51784515471 optimize local "def"s by treating them as definitions
blanchet
parents: 38126
diff changeset
  1050
                      step subst assm_ts orig_t =
47670
24babc4b1925 added timeout argument to TPTP tools
blanchet
parents: 47564
diff changeset
  1051
  let
24babc4b1925 added timeout argument to TPTP tools
blanchet
parents: 47564
diff changeset
  1052
    val print_nt = if is_mode_nt mode then Output.urgent_message else K ()
24babc4b1925 added timeout argument to TPTP tools
blanchet
parents: 47564
diff changeset
  1053
    val print_t = if mode = TPTP then Output.urgent_message else K ()
24babc4b1925 added timeout argument to TPTP tools
blanchet
parents: 47564
diff changeset
  1054
  in
37213
efcad7594872 fix handling of "split" w.r.t. new definition + fix exception handling w.r.t. "expect" option
blanchet
parents: 37146
diff changeset
  1055
    if getenv "KODKODI" = "" then
37497
71fdbffe3275 distinguish between "unknown" and "no Kodkodi installed" errors
blanchet
parents: 37273
diff changeset
  1056
      (* The "expect" argument is deliberately ignored if Kodkodi is missing so
71fdbffe3275 distinguish between "unknown" and "no Kodkodi installed" errors
blanchet
parents: 37273
diff changeset
  1057
         that the "Nitpick_Examples" can be processed on any machine. *)
47560
e30323bfc93c added SZS status wrappers in TPTP mode
blanchet
parents: 47559
diff changeset
  1058
      (print_nt (Pretty.string_of (plazy install_kodkodi_message));
37497
71fdbffe3275 distinguish between "unknown" and "no Kodkodi installed" errors
blanchet
parents: 37273
diff changeset
  1059
       ("no_kodkodi", state))
37213
efcad7594872 fix handling of "split" w.r.t. new definition + fix exception handling w.r.t. "expect" option
blanchet
parents: 37146
diff changeset
  1060
    else
efcad7594872 fix handling of "split" w.r.t. new definition + fix exception handling w.r.t. "expect" option
blanchet
parents: 37146
diff changeset
  1061
      let
43020
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 42959
diff changeset
  1062
        val unknown_outcome = (unknownN, state)
37213
efcad7594872 fix handling of "split" w.r.t. new definition + fix exception handling w.r.t. "expect" option
blanchet
parents: 37146
diff changeset
  1063
        val deadline = Option.map (curry Time.+ (Time.now ())) timeout
efcad7594872 fix handling of "split" w.r.t. new definition + fix exception handling w.r.t. "expect" option
blanchet
parents: 37146
diff changeset
  1064
        val outcome as (outcome_code, _) =
41051
2ed1b971fc20 give the inner timeout mechanism a chance, since it gives more precise information to the user
blanchet
parents: 41048
diff changeset
  1065
          time_limit (if debug orelse is_none timeout then NONE
2ed1b971fc20 give the inner timeout mechanism a chance, since it gives more precise information to the user
blanchet
parents: 41048
diff changeset
  1066
                      else SOME (Time.+ (the timeout, timeout_bonus)))
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
  1067
              (pick_them_nits_in_term deadline state params mode i n step subst
38169
b51784515471 optimize local "def"s by treating them as definitions
blanchet
parents: 38126
diff changeset
  1068
                                      assm_ts) orig_t
37213
efcad7594872 fix handling of "split" w.r.t. new definition + fix exception handling w.r.t. "expect" option
blanchet
parents: 37146
diff changeset
  1069
          handle TOO_LARGE (_, details) =>
47670
24babc4b1925 added timeout argument to TPTP tools
blanchet
parents: 47564
diff changeset
  1070
                 (print_t "% SZS status Unknown";
24babc4b1925 added timeout argument to TPTP tools
blanchet
parents: 47564
diff changeset
  1071
                  print_nt ("Limit reached: " ^ details ^ "."); unknown_outcome)
37213
efcad7594872 fix handling of "split" w.r.t. new definition + fix exception handling w.r.t. "expect" option
blanchet
parents: 37146
diff changeset
  1072
               | TOO_SMALL (_, details) =>
47670
24babc4b1925 added timeout argument to TPTP tools
blanchet
parents: 47564
diff changeset
  1073
                 (print_t "% SZS status Unknown";
24babc4b1925 added timeout argument to TPTP tools
blanchet
parents: 47564
diff changeset
  1074
                  print_nt ("Limit reached: " ^ details ^ "."); unknown_outcome)
37213
efcad7594872 fix handling of "split" w.r.t. new definition + fix exception handling w.r.t. "expect" option
blanchet
parents: 37146
diff changeset
  1075
               | Kodkod.SYNTAX (_, details) =>
47670
24babc4b1925 added timeout argument to TPTP tools
blanchet
parents: 47564
diff changeset
  1076
                 (print_t "% SZS status Unknown";
24babc4b1925 added timeout argument to TPTP tools
blanchet
parents: 47564
diff changeset
  1077
                  print_nt ("Malformed Kodkodi output: " ^ details ^ ".");
37213
efcad7594872 fix handling of "split" w.r.t. new definition + fix exception handling w.r.t. "expect" option
blanchet
parents: 37146
diff changeset
  1078
                  unknown_outcome)
41772
27d4c768cf20 make Nitpick's timeout mechanism somewhat more reliable/friendly;
blanchet
parents: 41278
diff changeset
  1079
               | TimeLimit.TimeOut =>
47670
24babc4b1925 added timeout argument to TPTP tools
blanchet
parents: 47564
diff changeset
  1080
                 (print_t "% SZS status TimedOut";
24babc4b1925 added timeout argument to TPTP tools
blanchet
parents: 47564
diff changeset
  1081
                  print_nt "Nitpick ran out of time."; unknown_outcome)
37213
efcad7594872 fix handling of "split" w.r.t. new definition + fix exception handling w.r.t. "expect" option
blanchet
parents: 37146
diff changeset
  1082
      in
efcad7594872 fix handling of "split" w.r.t. new definition + fix exception handling w.r.t. "expect" option
blanchet
parents: 37146
diff changeset
  1083
        if expect = "" orelse outcome_code = expect then outcome
efcad7594872 fix handling of "split" w.r.t. new definition + fix exception handling w.r.t. "expect" option
blanchet
parents: 37146
diff changeset
  1084
        else error ("Unexpected outcome: " ^ quote outcome_code ^ ".")
efcad7594872 fix handling of "split" w.r.t. new definition + fix exception handling w.r.t. "expect" option
blanchet
parents: 37146
diff changeset
  1085
      end
efcad7594872 fix handling of "split" w.r.t. new definition + fix exception handling w.r.t. "expect" option
blanchet
parents: 37146
diff changeset
  1086
  end
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1087
42486
01b03a124b81 direct use of Variable.is_fixed;
wenzelm
parents: 42415
diff changeset
  1088
fun is_fixed_equation ctxt
35335
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1089
                      (Const (@{const_name "=="}, _) $ Free (s, _) $ Const _) =
42486
01b03a124b81 direct use of Variable.is_fixed;
wenzelm
parents: 42415
diff changeset
  1090
    Variable.is_fixed ctxt s
35335
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1091
  | is_fixed_equation _ _ = false
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1092
fun extract_fixed_frees ctxt (assms, t) =
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1093
  let
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1094
    val (subst, other_assms) =
42486
01b03a124b81 direct use of Variable.is_fixed;
wenzelm
parents: 42415
diff changeset
  1095
      List.partition (is_fixed_equation ctxt) assms
35335
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1096
      |>> map Logic.dest_equals
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1097
  in (subst, other_assms, subst_atomic subst t) end
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1098
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
  1099
fun pick_nits_in_subgoal state params mode i step =
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1100
  let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1101
    val ctxt = Proof.context_of state
33292
affe60b3d864 renamed raw Proof.get_goal to Proof.raw_goal;
wenzelm
parents: 33233
diff changeset
  1102
    val t = state |> Proof.raw_goal |> #goal |> prop_of
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1103
  in
34982
7b8c366e34a2 added support for nonstandard models to Nitpick (based on an idea by Koen Claessen) and did other fixes to Nitpick
blanchet
parents: 34938
diff changeset
  1104
    case Logic.count_prems t of
43020
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 42959
diff changeset
  1105
      0 => (Output.urgent_message "No subgoal!"; (noneN, state))
34982
7b8c366e34a2 added support for nonstandard models to Nitpick (based on an idea by Koen Claessen) and did other fixes to Nitpick
blanchet
parents: 34938
diff changeset
  1106
    | n =>
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1107
      let
36406
0a2d5138b77c fixes 2a5c6e7b55cb;
blanchet
parents: 36397
diff changeset
  1108
        val t = Logic.goal_params t i |> fst
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1109
        val assms = map term_of (Assumption.all_assms_of ctxt)
35335
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1110
        val (subst, assms, t) = extract_fixed_frees ctxt (assms, t)
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
  1111
      in pick_nits_in_term state params mode i n step subst assms t end
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1112
  end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1113
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1114
end;