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
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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
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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 a Java 1.5 virtual machine called \"java\"."
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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 Isabelle's web page and add the \"kodkodi-x.y.z\" \
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  \directory's full path to " ^
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  Path.print (Path.expand (Path.appends
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      (Path.variable "ISABELLE_HOME_USER" ::
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       map Path.basic ["etc", "components"]))) ^ " 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 number}
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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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    val pprint =
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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 Markup.hilite
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      else
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        (fn s => (Output.urgent_message s; if debug then tracing s else ()))
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        o Pretty.string_of
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    fun pprint_n f = () |> mode = Normal ? pprint o f
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    fun pprint_v f = () |> verbose ? pprint o f
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    fun pprint_d f = () |> debug ? pprint o f
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    val print = pprint o curry Pretty.blk 0 o pstrs
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(*
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    val print_g = pprint o Pretty.str
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*)
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    val print_n = pprint_n 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_n (fn () => "Nitpicking formula...")
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      else
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        pprint_n (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
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    val case_names = case_const_names ctxt stds
42415
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    val defs = all_defs_of thy subst
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    val nondefs = all_nondefs_of ctxt subst
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    val def_tables = const_def_tables ctxt subst defs
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    val nondef_table = const_nondef_table nondefs
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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
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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)
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    val intro_table = inductive_intro_table ctxt subst def_tables
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    val ground_thm_table = ground_theorem_table thy
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    val ersatz_table = ersatz_table ctxt
41007
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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,
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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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       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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       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
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            error "Nitpick cannot handle goals with schematic type variables."
41875
e3cd0dce9b1a renamed "preconstr" option "need"
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diff changeset
   320
    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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         no_poly_user_axioms, binarize) =
ef13e3b7cbaf more work on "fix_datatype_vals" optimization (renamed "preconstruct")
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      preprocess_formulas hol_ctxt assm_ts neg_t
33192
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    val got_all_user_axioms =
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      got_all_mono_user_axioms andalso no_poly_user_axioms
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   325
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   326
    fun print_wf (x, (gfp, wf)) =
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      pprint (Pretty.blk (0,
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          pstrs ("The " ^ (if gfp then "co" else "") ^ "inductive predicate \"")
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          @ Syntax.pretty_term ctxt (Const x) ::
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          pstrs (if wf then
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   331
                   "\" was proved well-founded. Nitpick can compute it \
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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                   \efficiently."
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                 else
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                   "\" 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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   335
                   \unroll it.")))
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   336
    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
   337
    val das_wort_formula = if falsify then "Negated conjecture" else "Formula"
33192
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   338
    val _ =
35386
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      pprint_d (fn () => Pretty.chunks
38171
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diff changeset
   340
          (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
   341
           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
   342
           pretties_for_formulas ctxt "Relevant nondefinitional axiom"
45a4e19d3ebd more work on the new monotonicity stuff in Nitpick
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                                 (tl nondef_ts)))
45a4e19d3ebd more work on the new monotonicity stuff in Nitpick
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    val _ = List.app (ignore o Term.type_of) (nondef_ts @ def_ts)
33192
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            handle TYPE (_, Ts, ts) =>
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                   raise TYPE ("Nitpick.pick_them_nits_in_term", Ts, ts)
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   347
41801
ed77524f3429 first steps in implementing "fix_datatype_vals" optimization
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diff changeset
   348
    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
   349
    val def_us = def_ts |> map (nut_from_term hol_ctxt DefEq)
41875
e3cd0dce9b1a renamed "preconstr" option "need"
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diff changeset
   350
    val need_us = need_ts |> map (nut_from_term hol_ctxt Eq)
33558
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diff changeset
   351
    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
   352
      fold add_free_and_const_names (nondef_us @ def_us @ need_us) ([], [])
33558
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diff changeset
   353
    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
   354
      List.partition (is_sel o nickname_of) const_names
35665
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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diff changeset
   355
    val sound_finitizes =
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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diff changeset
   356
      none_true (filter_out (fn (SOME (Type (@{type_name fun}, _)), _) => true
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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diff changeset
   357
                          | _ => false) 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
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   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
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*)
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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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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diff changeset
   365
    fun monotonicity_message Ts extra =
38188
7f12a03c513c better "Pretty" handling
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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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diff changeset
   367
        Pretty.blk (0,
7f12a03c513c better "Pretty" handling
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diff changeset
   368
          pstrs ("The type" ^ plural_s_for_list pretties ^ " ") @
7f12a03c513c better "Pretty" handling
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diff changeset
   369
          pretty_serial_commas "and" pretties @
7f12a03c513c better "Pretty" handling
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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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                    "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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   374
                    (if length pretties = 1 then "is" else "are") ^
ee829022381d use \<emdash> rather than \<midarrow>
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   375
                    " considered monotonic") ^
ee829022381d use \<emdash> rather than \<midarrow>
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diff changeset
   376
                 ". " ^ extra))
35385
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   377
      end
35665
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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diff changeset
   378
    fun is_type_fundamentally_monotonic T =
38240
a44d108a8d39 local versions of Nitpick.register_xxx functions
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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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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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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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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;
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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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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
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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"
blanchet
parents: 35408
diff changeset
   397
        is_type_kind_of_monotonic T
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
blanchet
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 =
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
blanchet
parents: 35384
diff changeset
   403
      not standard orelse T = nat_T orelse is_word_type T orelse
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
blanchet
parents: 35384
diff changeset
   404
      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
   405
    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
   406
                 |> sort Term_Ord.typ_ord
38214
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   407
    val _ =
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   408
      if verbose andalso binary_ints = SOME true andalso
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   409
         exists (member (op =) [nat_T, int_T]) all_Ts then
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   410
        print_v (K "The option \"binary_ints\" will be ignored because of the \
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   411
                   \presence of rationals, reals, \"Suc\", \"gcd\", or \"lcm\" \
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   412
                   \in the problem or because of the \"non_std\" option.")
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   413
      else
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   414
        ()
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   415
    val _ =
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
   416
      if mode = Normal andalso
38214
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   417
         exists (fn Type (@{type_name Datatype.node}, _) => true | _ => false)
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   418
                all_Ts then
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
   419
        print_n (K ("Warning: The problem involves directly or indirectly the \
38214
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   420
                    \internal type " ^ quote @{type_name Datatype.node} ^
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   421
                    ". This type is very Nitpick-unfriendly, and its presence \
39361
blanchet
parents: 39359
diff changeset
   422
                    \usually indicates either a failure of abstraction or a \
blanchet
parents: 39359
diff changeset
   423
                    \quirk in Nitpick."))
38214
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   424
      else
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   425
        ()
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
   426
    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
   427
    val _ =
34936
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   428
      if verbose andalso not unique_scope then
35665
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
blanchet
parents: 35408
diff changeset
   429
        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
   430
          [] => ()
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   431
        | interesting_mono_Ts =>
38188
7f12a03c513c better "Pretty" handling
blanchet
parents: 38182
diff changeset
   432
          pprint_v (K (monotonicity_message interesting_mono_Ts
7f12a03c513c better "Pretty" handling
blanchet
parents: 38182
diff changeset
   433
                          "Nitpick might be able to skip some scopes."))
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   434
      else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   435
        ()
35385
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
blanchet
parents: 35384
diff changeset
   436
    val (deep_dataTs, shallow_dataTs) =
37256
0dca1ec52999 thread along context instead of theory for typedef lookup
blanchet
parents: 37213
diff changeset
   437
      all_Ts |> filter (is_datatype ctxt stds)
0dca1ec52999 thread along context instead of theory for typedef lookup
blanchet
parents: 37213
diff changeset
   438
             |> List.partition is_datatype_deep
35385
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
blanchet
parents: 35384
diff changeset
   439
    val finitizable_dataTs =
41793
c7a2669ae75d tweaked Nitpick based on C++ memory model example
blanchet
parents: 41791
diff changeset
   440
      (deep_dataTs |> filter_out (is_finite_type hol_ctxt)
c7a2669ae75d tweaked Nitpick based on C++ memory model example
blanchet
parents: 41791
diff changeset
   441
                   |> filter is_deep_datatype_finitizable) @
c7a2669ae75d tweaked Nitpick based on C++ memory model example
blanchet
parents: 41791
diff changeset
   442
      (shallow_dataTs |> filter_out (is_finite_type hol_ctxt)
c7a2669ae75d tweaked Nitpick based on C++ memory model example
blanchet
parents: 41791
diff changeset
   443
                      |> filter is_shallow_datatype_finitizable)
35385
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
blanchet
parents: 35384
diff changeset
   444
    val _ =
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
blanchet
parents: 35384
diff changeset
   445
      if verbose andalso not (null finitizable_dataTs) then
38188
7f12a03c513c better "Pretty" handling
blanchet
parents: 38182
diff changeset
   446
        pprint_v (K (monotonicity_message finitizable_dataTs
7f12a03c513c better "Pretty" handling
blanchet
parents: 38182
diff changeset
   447
                         "Nitpick can use a more precise finite encoding."))
35385
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
blanchet
parents: 35384
diff changeset
   448
      else
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
blanchet
parents: 35384
diff changeset
   449
        ()
35183
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   450
    (* 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
   451
       provide a hint to the user. *)
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   452
    fun is_struct_induct_step (name, (Rule_Cases.Case {fixes, assumes, ...}, _)) =
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   453
      not (null fixes) andalso
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   454
      exists (String.isSuffix ".hyps" o fst) assumes andalso
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   455
      exists (exists (curry (op =) name o shortest_name o fst)
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   456
              o datatype_constrs hol_ctxt) deep_dataTs
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   457
    val likely_in_struct_induct_step =
42361
23f352990944 modernized structure Proof_Context;
wenzelm
parents: 41995
diff changeset
   458
      exists is_struct_induct_step (Proof_Context.cases_of ctxt)
35183
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   459
    val _ = if standard andalso likely_in_struct_induct_step then
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
   460
              pprint_n (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
   461
                  pstrs "Hint: To check that the induction hypothesis is \
35177
168041f24f80 various cosmetic changes to Nitpick
blanchet
parents: 35075
diff changeset
   462
                        \general enough, try this command: " @
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
   463
                  [Pretty.mark Markup.sendback (Pretty.blk (0,
35183
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   464
                       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
   465
            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
   466
              ()
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   467
(*
36128
a3d8d5329438 make Nitpick output everything to tracing in debug mode;
blanchet
parents: 36126
diff changeset
   468
    val _ = print_g "Monotonic types:"
a3d8d5329438 make Nitpick output everything to tracing in debug mode;
blanchet
parents: 36126
diff changeset
   469
    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
   470
    val _ = print_g "Nonmonotonic types:"
a3d8d5329438 make Nitpick output everything to tracing in debug mode;
blanchet
parents: 36126
diff changeset
   471
    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
   472
*)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   473
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   474
    val incremental = Int.max (max_potential, max_genuine) >= 2
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   475
    val actual_sat_solver =
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   476
      if sat_solver <> "smart" then
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   477
        if incremental andalso
34936
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   478
           not (member (op =) (Kodkod_SAT.configured_sat_solvers true)
35333
f61de25f71f9 distinguish between Kodkodi warnings and errors in Nitpick;
blanchet
parents: 35280
diff changeset
   479
                       sat_solver) then
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
   480
          (print_n (K ("An incremental SAT solver is required: \"SAT4J\" will \
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   481
                       \be used instead of " ^ quote sat_solver ^ "."));
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   482
           "SAT4J")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   483
        else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   484
          sat_solver
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   485
      else
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   486
        Kodkod_SAT.smart_sat_solver_name incremental
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   487
    val _ =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   488
      if sat_solver = "smart" then
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   489
        print_v (fn () =>
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   490
            "Using SAT solver " ^ quote actual_sat_solver ^ ". The following" ^
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   491
            (if incremental then " incremental " else " ") ^
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   492
            "solvers are configured: " ^
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   493
            commas_quote (Kodkod_SAT.configured_sat_solvers incremental) ^ ".")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   494
      else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   495
        ()
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
    val too_big_scopes = Unsynchronized.ref []
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   498
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
   499
    fun problem_for_scope unsound
34124
c4628a1dcf75 added support for binary nat/int representation to Nitpick
blanchet
parents: 34123
diff changeset
   500
            (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
   501
      let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   502
        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
   503
                            (!too_big_scopes)) orelse
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   504
                raise TOO_LARGE ("Nitpick.pick_them_nits_in_term.\
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   505
                                 \problem_for_scope", "too large scope")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   506
(*
36128
a3d8d5329438 make Nitpick output everything to tracing in debug mode;
blanchet
parents: 36126
diff changeset
   507
        val _ = print_g "Offsets:"
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   508
        val _ = List.app (fn (T, j0) =>
36128
a3d8d5329438 make Nitpick output everything to tracing in debug mode;
blanchet
parents: 36126
diff changeset
   509
                             print_g (string_for_type ctxt T ^ " = " ^
a3d8d5329438 make Nitpick output everything to tracing in debug mode;
blanchet
parents: 36126
diff changeset
   510
                                    string_of_int j0))
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   511
                         (Typtab.dest ofs)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   512
*)
41858
37ce158d6266 if "total_consts" is set, report cex's as quasi-genuine
blanchet
parents: 41856
diff changeset
   513
        val effective_total_consts =
41856
7244589c8ccc added "total_consts" option
blanchet
parents: 41803
diff changeset
   514
          case total_consts of
7244589c8ccc added "total_consts" option
blanchet
parents: 41803
diff changeset
   515
            SOME b => b
7244589c8ccc added "total_consts" option
blanchet
parents: 41803
diff changeset
   516
          | 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
   517
        val main_j0 = offset_of_type ofs bool_T
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   518
        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
   519
        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
   520
        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
   521
                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
   522
                           "bad offsets")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   523
        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
   524
        val (free_names, rep_table) =
38170
d74b66ec02ce handle free variables even more gracefully;
blanchet
parents: 38169
diff changeset
   525
          choose_reps_for_free_vars scope pseudo_frees free_names
d74b66ec02ce handle free variables even more gracefully;
blanchet
parents: 38169
diff changeset
   526
                                    NameTable.empty
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   527
        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
   528
        val (nonsel_names, rep_table) =
41858
37ce158d6266 if "total_consts" is set, report cex's as quasi-genuine
blanchet
parents: 41856
diff changeset
   529
          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
   530
                                 rep_table
38182
747f8077b09a more helpful message
blanchet
parents: 38171
diff changeset
   531
        val (guiltiest_party, min_highest_arity) =
747f8077b09a more helpful message
blanchet
parents: 38171
diff changeset
   532
          NameTable.fold (fn (name, R) => fn (s, n) =>
747f8077b09a more helpful message
blanchet
parents: 38171
diff changeset
   533
                             let val n' = arity_of_rep R in
747f8077b09a more helpful message
blanchet
parents: 38171
diff changeset
   534
                               if n' > n then (nickname_of name, n') else (s, n)
747f8077b09a more helpful message
blanchet
parents: 38171
diff changeset
   535
                             end) rep_table ("", 1)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   536
        val min_univ_card =
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   537
          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
   538
                         (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
   539
        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
   540
                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
   541
41802
7592a165fa0b more work on "fix_datatype_vals"
blanchet
parents: 41801
diff changeset
   542
        val def_us =
7592a165fa0b more work on "fix_datatype_vals"
blanchet
parents: 41801
diff changeset
   543
          def_us |> map (choose_reps_in_nut scope unsound rep_table true)
7592a165fa0b more work on "fix_datatype_vals"
blanchet
parents: 41801
diff changeset
   544
        val nondef_us =
7592a165fa0b more work on "fix_datatype_vals"
blanchet
parents: 41801
diff changeset
   545
          nondef_us |> map (choose_reps_in_nut scope unsound rep_table false)
41875
e3cd0dce9b1a renamed "preconstr" option "need"
blanchet
parents: 41872
diff changeset
   546
        val need_us =
e3cd0dce9b1a renamed "preconstr" option "need"
blanchet
parents: 41872
diff changeset
   547
          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
   548
(*
36128
a3d8d5329438 make Nitpick output everything to tracing in debug mode;
blanchet
parents: 36126
diff changeset
   549
        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
   550
                         (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
   551
                          nondef_us @ def_us @ need_us)
33745
daf236998f82 comment out debugging code in Nitpick
blanchet
parents: 33744
diff changeset
   552
*)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   553
        val (free_rels, pool, rel_table) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   554
          rename_free_vars free_names initial_pool NameTable.empty
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   555
        val (sel_rels, pool, rel_table) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   556
          rename_free_vars sel_names pool rel_table
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   557
        val (other_rels, pool, rel_table) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   558
          rename_free_vars nonsel_names pool rel_table
41802
7592a165fa0b more work on "fix_datatype_vals"
blanchet
parents: 41801
diff changeset
   559
        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
   560
        val def_us = def_us |> map (rename_vars_in_nut pool rel_table)
41875
e3cd0dce9b1a renamed "preconstr" option "need"
blanchet
parents: 41872
diff changeset
   561
        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
   562
        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
   563
        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
   564
        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
   565
        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
   566
                      Print_Mode.setmp [] multiline_string_for_scope scope
34998
5e492a862b34 four changes to Nitpick:
blanchet
parents: 34982
diff changeset
   567
        val kodkod_sat_solver =
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   568
          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
   569
        val bit_width = if bits = 0 then 16 else bits + 1
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   570
        val delay =
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   571
          if unsound then
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   572
            Option.map (fn time => Time.- (time, Time.now ())) deadline
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   573
            |> unsound_delay_for_timeout
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   574
          else
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   575
            0
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   576
        val settings = [("solver", commas_quote kodkod_sat_solver),
34124
c4628a1dcf75 added support for binary nat/int representation to Nitpick
blanchet
parents: 34123
diff changeset
   577
                        ("bit_width", string_of_int bit_width),
38124
6538e25cf5dd started implementation of custom sym break
blanchet
parents: 38123
diff changeset
   578
                        ("symmetry_breaking", string_of_int kodkod_sym_break),
36386
2132f15b366f Fruhjahrsputz: remove three mostly useless Nitpick options
blanchet
parents: 36385
diff changeset
   579
                        ("sharing", "3"),
2132f15b366f Fruhjahrsputz: remove three mostly useless Nitpick options
blanchet
parents: 36385
diff changeset
   580
                        ("flatten", "false"),
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   581
                        ("delay", signed_string_of_int delay)]
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   582
        val plain_rels = free_rels @ other_rels
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   583
        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
   584
        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
   585
        val need_vals =
03c2d29ec790 optimize Kodkod bounds when "need" is specified
blanchet
parents: 41993
diff changeset
   586
          map (fn dtype as {typ, ...} =>
03c2d29ec790 optimize Kodkod bounds when "need" is specified
blanchet
parents: 41993
diff changeset
   587
                  (typ, needed_values_for_datatype need_us ofs dtype)) datatypes
03c2d29ec790 optimize Kodkod bounds when "need" is specified
blanchet
parents: 41993
diff changeset
   588
        val sel_bounds =
03c2d29ec790 optimize Kodkod bounds when "need" is specified
blanchet
parents: 41993
diff changeset
   589
          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
   590
        val dtype_axioms =
41995
03c2d29ec790 optimize Kodkod bounds when "need" is specified
blanchet
parents: 41993
diff changeset
   591
          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
   592
              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
   593
        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
   594
        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
   595
                                     (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
   596
                                 main_j0 |> bits > 0 ? Integer.add (bits + 1))
38126
8031d099379a added manual symmetry breaking for datatypes
blanchet
parents: 38124
diff changeset
   597
        val (built_in_bounds, built_in_axioms) =
39345
062c10ff848c remove unreferenced identifiers
blanchet
parents: 39316
diff changeset
   598
          bounds_and_axioms_for_built_in_rels_in_formulas debug univ_card
062c10ff848c remove unreferenced identifiers
blanchet
parents: 39316
diff changeset
   599
              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
   600
        val bounds = built_in_bounds @ plain_bounds @ sel_bounds
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   601
                     |> not debug ? merge_bounds
38126
8031d099379a added manual symmetry breaking for datatypes
blanchet
parents: 38124
diff changeset
   602
        val axioms = built_in_axioms @ declarative_axioms
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   603
        val highest_arity =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   604
          fold Integer.max (map (fst o fst) (maps fst bounds)) 0
38126
8031d099379a added manual symmetry breaking for datatypes
blanchet
parents: 38124
diff changeset
   605
        val formula = fold_rev s_and axioms formula
34124
c4628a1dcf75 added support for binary nat/int representation to Nitpick
blanchet
parents: 34123
diff changeset
   606
        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
   607
        val _ = if debug orelse formula = KK.False then ()
38182
747f8077b09a more helpful message
blanchet
parents: 38171
diff changeset
   608
                else check_arity "" univ_card highest_arity
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   609
      in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   610
        SOME ({comment = comment, settings = settings, univ_card = univ_card,
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   611
               tuple_assigns = [], bounds = bounds,
35280
54ab4921f826 fixed a few bugs in Nitpick and removed unreferenced variables
blanchet
parents: 35220
diff changeset
   612
               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
   613
                            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
   614
               expr_assigns = [], formula = formula},
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   615
              {free_names = free_names, sel_names = sel_names,
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   616
               nonsel_names = nonsel_names, rel_table = rel_table,
35386
45a4e19d3ebd more work on the new monotonicity stuff in Nitpick
blanchet
parents: 35385
diff changeset
   617
               unsound = unsound, scope = scope})
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   618
      end
34124
c4628a1dcf75 added support for binary nat/int representation to Nitpick
blanchet
parents: 34123
diff changeset
   619
      handle TOO_LARGE (loc, msg) =>
34936
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   620
             if loc = "Nitpick_Kodkod.check_arity" andalso
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   621
                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
   622
               problem_for_scope unsound
35190
ce653cc27a94 make sure that Nitpick uses binary notation consistently if "binary_ints" is enabled
blanchet
parents: 35185
diff changeset
   623
                   {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
   624
                    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
   625
                    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
   626
                    ofs = Typtab.empty}
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   627
             else if loc = "Nitpick.pick_them_nits_in_term.\
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   628
                           \problem_for_scope" then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   629
               NONE
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   630
             else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   631
               (Unsynchronized.change too_big_scopes (cons scope);
41992
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   632
                print_v (fn () =>
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   633
                    "Limit reached: " ^ msg ^ ". Skipping " ^
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   634
                    (if unsound then "potential component of " else "") ^
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   635
                    "scope.");
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   636
                NONE)
35280
54ab4921f826 fixed a few bugs in Nitpick and removed unreferenced variables
blanchet
parents: 35220
diff changeset
   637
           | TOO_SMALL (_, msg) =>
41992
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   638
             (print_v (fn () =>
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   639
                  "Limit reached: " ^ msg ^ ". Skipping " ^
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   640
                  (if unsound then "potential component of " else "") ^
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   641
                  "scope.");
34124
c4628a1dcf75 added support for binary nat/int representation to Nitpick
blanchet
parents: 34123
diff changeset
   642
              NONE)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   643
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
   644
    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
   645
      (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
   646
      |> not standard ? prefix "nonstandard "
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   647
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   648
    val scopes = Unsynchronized.ref []
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   649
    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
   650
    val generated_problems = Unsynchronized.ref ([] : rich_problem list)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   651
    val checked_problems = Unsynchronized.ref (SOME [])
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   652
    val met_potential = Unsynchronized.ref 0
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   653
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   654
    fun update_checked_problems problems =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   655
      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
   656
                o nth problems)
35333
f61de25f71f9 distinguish between Kodkodi warnings and errors in Nitpick;
blanchet
parents: 35280
diff changeset
   657
    fun show_kodkod_warning "" = ()
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
   658
      | show_kodkod_warning s = print_n (fn () => "Kodkod warning: " ^ s ^ ".")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   659
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   660
    fun print_and_check_model genuine bounds
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   661
            ({free_names, sel_names, nonsel_names, rel_table, scope, ...}
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   662
             : problem_extension) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   663
      let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   664
        val (reconstructed_model, codatatypes_ok) =
41993
bd6296de1432 reintroduced "show_skolems" option -- useful when too many Skolems are displayed
blanchet
parents: 41992
diff changeset
   665
          reconstruct_hol_model
bd6296de1432 reintroduced "show_skolems" option -- useful when too many Skolems are displayed
blanchet
parents: 41992
diff changeset
   666
              {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
   667
               show_consts = show_consts}
38170
d74b66ec02ce handle free variables even more gracefully;
blanchet
parents: 38169
diff changeset
   668
              scope formats atomss real_frees pseudo_frees free_names sel_names
d74b66ec02ce handle free variables even more gracefully;
blanchet
parents: 38169
diff changeset
   669
              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
   670
        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
   671
          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
   672
          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
   673
          codatatypes_ok
38169
b51784515471 optimize local "def"s by treating them as definitions
blanchet
parents: 38126
diff changeset
   674
        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
   675
      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
   676
        (pprint (Pretty.chunks
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   677
             [Pretty.blk (0,
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
   678
                  (pstrs ((if mode = Auto_Try then "Auto " else "") ^
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
   679
                          "Nitpick found a" ^
41992
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   680
                          (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
   681
                           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
   682
                           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
   683
                   (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
   684
                      [] => []
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
                    | 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
   686
                   [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
   687
              Pretty.indent indent_size reconstructed_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
   688
         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
   689
           (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
   690
              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
   691
                                   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
   692
                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
   693
                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
   694
                       das_wort_model ^ " is really genuine.")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   695
              | 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
   696
                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
   697
                  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
   698
                         \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
   699
                         \happen.\nPlease send a bug report to blanchet\
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   700
                         \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
   701
                 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
   702
                   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
   703
                          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
   704
               | 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
   705
            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
   706
              ();
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   707
            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
   708
              print "The existence of a nonstandard model suggests that the \
36126
00d550b6cfd4 cosmetics
blanchet
parents: 35968
diff changeset
   709
                    \induction hypothesis is not general enough or may even be \
00d550b6cfd4 cosmetics
blanchet
parents: 35968
diff changeset
   710
                    \wrong. See the Nitpick manual's \"Inductive Properties\" \
00d550b6cfd4 cosmetics
blanchet
parents: 35968
diff changeset
   711
                    \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
   712
            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
   713
              ();
41048
d5ebe94248ad added a hint when the user obviously just forgot a colon after the lemma's name
blanchet
parents: 41007
diff changeset
   714
            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
   715
              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
   716
            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
   717
              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
   718
            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
   719
              ();
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   720
            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
   721
              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
   722
                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
   723
                  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
   724
                    [] |> 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
   725
                          ? 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
   726
                       |> 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
   727
                          ? 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
   728
                       |> 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
   729
                          ? cons ("finitize", "\"smart\" or \"false\"")
41858
37ce158d6266 if "total_consts" is set, report cex's as quasi-genuine
blanchet
parents: 41856
diff changeset
   730
                       |> total_consts = SOME true
37ce158d6266 if "total_consts" is set, report cex's as quasi-genuine
blanchet
parents: 41856
diff changeset
   731
                          ? 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
   732
                       |> 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
   733
                          ? 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
   734
                  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
   735
                    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
   736
                        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
   737
                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
   738
                  print ("Try again with " ^
41872
10fd9e5d58ba added missing spaces in output
blanchet
parents: 41871
diff changeset
   739
                         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
   740
                         " 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
   741
                         " 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
   742
                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
   743
              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
   744
                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
   745
                       \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
   746
                       \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
   747
            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
   748
              ();
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
            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
   750
         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
   751
           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
   752
             (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
   753
              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
   754
                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
   755
                  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
   756
                                               sel_names rel_table bounds
b51784515471 optimize local "def"s by treating them as definitions
blanchet
parents: 38126
diff changeset
   757
                                               (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
   758
                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
   759
                  (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
   760
                     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
   761
                                         \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
   762
                                         " 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
   763
                   | 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
   764
                                          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
   765
                   | 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
   766
                  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
   767
                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
   768
              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
   769
                NONE)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   770
           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
   771
             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
   772
        |> pair genuine_means_genuine
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   773
      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
   774
    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
   775
                           donno) first_time problems =
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   776
      let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   777
        val max_potential = Int.max (0, max_potential)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   778
        val max_genuine = Int.max (0, max_genuine)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   779
        fun print_and_check genuine (j, bounds) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   780
          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
   781
        val max_solutions = max_potential + max_genuine
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   782
                            |> not incremental ? Integer.min 1
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   783
      in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   784
        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
   785
          (found_really_genuine, 0, 0, donno)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   786
        else
41793
c7a2669ae75d tweaked Nitpick based on C++ memory model example
blanchet
parents: 41791
diff changeset
   787
          case KK.solve_any_problem debug overlord deadline max_threads
c7a2669ae75d tweaked Nitpick based on C++ memory model example
blanchet
parents: 41791
diff changeset
   788
                                    max_solutions (map fst problems) of
35696
17ae461d6133 show nice error message in Nitpick when "java" is not available
blanchet
parents: 35671
diff changeset
   789
            KK.JavaNotInstalled =>
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
   790
            (print_n install_java_message;
35696
17ae461d6133 show nice error message in Nitpick when "java" is not available
blanchet
parents: 35671
diff changeset
   791
             (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
   792
          | KK.JavaTooOld =>
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
   793
            (print_n install_java_message;
38516
307669429dc1 gracefully handle the case where the JVM is too old in Nitpick
blanchet
parents: 38240
diff changeset
   794
             (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
   795
          | KK.KodkodiNotInstalled =>
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
   796
            (print_n 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
   797
             (found_really_genuine, max_potential, max_genuine, donno + 1))
35333
f61de25f71f9 distinguish between Kodkodi warnings and errors in Nitpick;
blanchet
parents: 35280
diff changeset
   798
          | KK.Normal ([], unsat_js, s) =>
f61de25f71f9 distinguish between Kodkodi warnings and errors in Nitpick;
blanchet
parents: 35280
diff changeset
   799
            (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
   800
             (found_really_genuine, max_potential, max_genuine, donno))
35333
f61de25f71f9 distinguish between Kodkodi warnings and errors in Nitpick;
blanchet
parents: 35280
diff changeset
   801
          | KK.Normal (sat_ps, unsat_js, s) =>
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   802
            let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   803
              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
   804
                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
   805
            in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   806
              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
   807
              show_kodkod_warning s;
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   808
              if null con_ps then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   809
                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
   810
                  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
   811
                    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
   812
                           |> 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
   813
                           |> 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
   814
                  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
   815
                    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
   816
                  val num_genuine = length genuine_codes
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   817
                  val max_genuine = max_genuine - num_genuine
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   818
                  val max_potential = max_potential
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   819
                                      - (length lib_ps - num_genuine)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   820
                in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   821
                  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
   822
                    (found_really_genuine, 0, 0, donno)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   823
                  else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   824
                    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
   825
                      (* "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
   826
                         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
   827
                         probably can't be satisfied themselves. *)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   828
                      val co_js =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   829
                        map (fn j => j - 1) unsat_js
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   830
                        |> filter (fn j =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   831
                                      j >= 0 andalso
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   832
                                      scopes_equivalent
35814
234eaa508359 added one-entry cache around Kodkod invocation
blanchet
parents: 35807
diff changeset
   833
                                          (#scope (snd (nth problems j)),
234eaa508359 added one-entry cache around Kodkod invocation
blanchet
parents: 35807
diff changeset
   834
                                           #scope (snd (nth problems (j + 1)))))
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   835
                      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
   836
                                                          unsat_js @ co_js)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   837
                      val problems =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   838
                        problems |> filter_out_indices bye_js
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   839
                                 |> 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
   840
                                    ? filter_out (#unsound o snd)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   841
                    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
   842
                      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
   843
                                         max_genuine, donno) false problems
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   844
                    end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   845
                end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   846
              else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   847
                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
   848
                  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
   849
                    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
   850
                           |> 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
   851
                  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
   852
                  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
   853
                    found_really_genuine orelse exists fst genuine_codes
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   854
                in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   855
                  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
   856
                    (found_really_genuine, 0, max_genuine, donno)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   857
                  else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   858
                    let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   859
                      val bye_js = sort_distinct int_ord
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   860
                                                 (map fst sat_ps @ unsat_js)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   861
                      val problems =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   862
                        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
   863
                                 |> 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
   864
                    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
   865
                      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
   866
                                         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
   867
                    end
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   868
                end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   869
            end
34126
8a2c5d7aff51 polished Nitpick's binary integer support etc.;
blanchet
parents: 34124
diff changeset
   870
          | KK.TimedOut unsat_js =>
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   871
            (update_checked_problems problems unsat_js; raise TimeLimit.TimeOut)
34126
8a2c5d7aff51 polished Nitpick's binary integer support etc.;
blanchet
parents: 34124
diff changeset
   872
          | KK.Error (s, unsat_js) =>
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   873
            (update_checked_problems problems unsat_js;
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   874
             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
   875
             (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
   876
      end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   877
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
   878
    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
   879
                              donno) =
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   880
      let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   881
        val _ =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   882
          if null scopes then
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
   883
            print_n (K "The scope specification is inconsistent.")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   884
          else if verbose then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   885
            pprint (Pretty.chunks
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   886
                [Pretty.blk (0,
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   887
                     pstrs ((if n > 1 then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   888
                               "Batch " ^ string_of_int (j + 1) ^ " of " ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   889
                               signed_string_of_int n ^ ": "
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   890
                             else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   891
                               "") ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   892
                            "Trying " ^ string_of_int (length scopes) ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   893
                            " scope" ^ plural_s_for_list scopes ^ ":")),
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   894
                 Pretty.indent indent_size
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   895
                     (Pretty.chunks (map2
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   896
                          (fn j => fn scope =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   897
                              Pretty.block (
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   898
                                  (case pretties_for_scope scope true of
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   899
                                     [] => [Pretty.str "Empty"]
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   900
                                   | pretties => pretties) @
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   901
                                  [Pretty.str (if j = 1 then "." else ";")]))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   902
                          (length scopes downto 1) scopes))])
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   903
          else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   904
            ()
35280
54ab4921f826 fixed a few bugs in Nitpick and removed unreferenced variables
blanchet
parents: 35220
diff changeset
   905
        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
   906
          (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
   907
           case problem_for_scope unsound scope of
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   908
             SOME problem =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   909
             (problems
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   910
              |> (null problems orelse
35814
234eaa508359 added one-entry cache around Kodkod invocation
blanchet
parents: 35807
diff changeset
   911
                  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
   912
                  ? cons problem, donno)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   913
           | NONE => (problems, donno + 1))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   914
        val (problems, donno) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   915
          fold add_problem_for_scope
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   916
               (map_product pair scopes
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   917
                    ((if max_genuine > 0 then [false] else []) @
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   918
                     (if max_potential > 0 then [true] else [])))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   919
               ([], donno)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   920
        val _ = Unsynchronized.change generated_problems (append problems)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   921
        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
   922
        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
   923
          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
   924
            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
   925
              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
   926
                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
   927
            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
   928
              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
   929
                 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
   930
                        sound_problems then
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
   931
                print_n (fn () =>
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
   932
                    "Warning: The conjecture either trivially holds for the \
35384
88dbcfe75c45 cosmetics
blanchet
parents: 35335
diff changeset
   933
                    \given scopes or lies outside Nitpick's supported \
88dbcfe75c45 cosmetics
blanchet
parents: 35335
diff changeset
   934
                    \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
   935
                    (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
   936
                               unsound_problems then
41992
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   937
                       " Only potentially spurious " ^ das_wort_model ^
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   938
                       "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
   939
                     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
   940
                       ""))
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
   941
              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
   942
                ()
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
   943
            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
   944
          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
   945
            ()
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   946
      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
   947
        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
   948
                           donno) true (rev problems)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   949
      end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   950
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   951
    fun scope_count (problems : rich_problem list) scope =
35814
234eaa508359 added one-entry cache around Kodkod invocation
blanchet
parents: 35807
diff changeset
   952
      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
   953
    fun excipit did_so_and_so =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   954
      let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   955
        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
   956
          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
   957
          else I
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   958
        val total = length (!scopes)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   959
        val unsat =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   960
          fold (fn scope =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   961
                   case scope_count (do_filter (!generated_problems)) scope of
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   962
                     0 => I
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   963
                   | 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
   964
                     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
   965
                                 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
   966
                     ? Integer.add 1) (!generated_scopes) 0
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   967
      in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   968
        "Nitpick " ^ did_so_and_so ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   969
        (if is_some (!checked_problems) andalso total > 0 then
39361
blanchet
parents: 39359
diff changeset
   970
           " " ^ string_of_int unsat ^ " of " ^ string_of_int total ^ " scope"
blanchet
parents: 39359
diff changeset
   971
           ^ plural_s total
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   972
         else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   973
           "") ^ "."
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   974
      end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   975
37704
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   976
    val (skipped, the_scopes) =
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   977
      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
   978
                 bitss bisim_depths mono_Ts nonmono_Ts deep_dataTs
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   979
                 finitizable_dataTs
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   980
    val _ = if skipped > 0 then
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
   981
              print_n (fn () => "Too many scopes. Skipping " ^
37704
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   982
                                string_of_int skipped ^ " scope" ^
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   983
                                plural_s skipped ^
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   984
                                ". (Consider using \"mono\" or \
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   985
                                \\"merge_type_vars\" to prevent this.)")
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   986
            else
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   987
              ()
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   988
    val _ = scopes := the_scopes
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   989
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
   990
    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
   991
                    (found_really_genuine, max_potential, max_genuine, donno) =
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   992
        if donno > 0 andalso max_genuine > 0 then
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
   993
          (print_n (fn () => excipit "checked"); unknownN)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   994
        else if max_genuine = original_max_genuine then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   995
          if max_potential = original_max_potential then
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
   996
            (print_n (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
   997
                 "Nitpick found no " ^ das_wort_model ^ "." ^
35183
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   998
                 (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
   999
                    " 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
  1000
                    \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
  1001
                  else
43020
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 42959
diff changeset
  1002
                    "")); if skipped > 0 then unknownN else noneN)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1003
          else
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
  1004
            (print_n (fn () =>
38123
36f649db4a6c clarify Nitpick's output in case of a potential counterexample
blanchet
parents: 37928
diff changeset
  1005
                 excipit ("could not find a" ^
36f649db4a6c clarify Nitpick's output in case of a potential counterexample
blanchet
parents: 37928
diff changeset
  1006
                          (if max_genuine = 1 then
36f649db4a6c clarify Nitpick's output in case of a potential counterexample
blanchet
parents: 37928
diff changeset
  1007
                             " better " ^ das_wort_model ^ "."
36f649db4a6c clarify Nitpick's output in case of a potential counterexample
blanchet
parents: 37928
diff changeset
  1008
                           else
36f649db4a6c clarify Nitpick's output in case of a potential counterexample
blanchet
parents: 37928
diff changeset
  1009
                             "ny better " ^ das_wort_model ^ "s.") ^
36f649db4a6c clarify Nitpick's output in case of a potential counterexample
blanchet
parents: 37928
diff changeset
  1010
                          " It checked"));
43020
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 42959
diff changeset
  1011
             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
  1012
        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
  1013
          genuineN
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
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
          quasi_genuineN
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1016
      | 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
  1017
        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
  1018
          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
  1019
        end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1020
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1021
    val batches = batch_list batch_size (!scopes)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1022
    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
  1023
      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
  1024
                  (false, max_potential, max_genuine, 0)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1025
      handle TimeLimit.TimeOut =>
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
  1026
             (print_n (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
  1027
              if !met_potential > 0 then potentialN else unknownN)
40341
03156257040f standardize on seconds for Nitpick and Sledgehammer timeouts
blanchet
parents: 40223
diff changeset
  1028
    val _ = print_v (fn () =>
03156257040f standardize on seconds for Nitpick and Sledgehammer timeouts
blanchet
parents: 40223
diff changeset
  1029
                "Total time: " ^ string_from_time (Timer.checkRealTimer timer) ^
03156257040f standardize on seconds for Nitpick and Sledgehammer timeouts
blanchet
parents: 40223
diff changeset
  1030
                ".")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1031
  in (outcome_code, !state_ref) end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1032
41051
2ed1b971fc20 give the inner timeout mechanism a chance, since it gives more precise information to the user
blanchet
parents: 41048
diff changeset
  1033
(* Give the inner timeout a chance. *)
41772
27d4c768cf20 make Nitpick's timeout mechanism somewhat more reliable/friendly;
blanchet
parents: 41278
diff changeset
  1034
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
  1035
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
  1036
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
  1037
                      step subst assm_ts orig_t =
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
  1038
  let val print_n = if mode = Normal then Output.urgent_message else K () 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
  1039
    if getenv "KODKODI" = "" then
37497
71fdbffe3275 distinguish between "unknown" and "no Kodkodi installed" errors
blanchet
parents: 37273
diff changeset
  1040
      (* 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
  1041
         that the "Nitpick_Examples" can be processed on any machine. *)
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
  1042
      (print_n (Pretty.string_of (plazy install_kodkodi_message));
37497
71fdbffe3275 distinguish between "unknown" and "no Kodkodi installed" errors
blanchet
parents: 37273
diff changeset
  1043
       ("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
  1044
    else
efcad7594872 fix handling of "split" w.r.t. new definition + fix exception handling w.r.t. "expect" option
blanchet
parents: 37146
diff changeset
  1045
      let
43020
abb5d1f907e4 added "try" command, to launch Solve Direct, Quickcheck, Nitpick, Sledgehammer, and Try Methods
blanchet
parents: 42959
diff changeset
  1046
        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
  1047
        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
  1048
        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
  1049
          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
  1050
                      else SOME (Time.+ (the timeout, timeout_bonus)))
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
  1051
              (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
  1052
                                      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
  1053
          handle TOO_LARGE (_, details) =>
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
  1054
                 (print_n ("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
  1055
               | TOO_SMALL (_, details) =>
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
  1056
                 (print_n ("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
  1057
               | Kodkod.SYNTAX (_, details) =>
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
  1058
                 (print_n ("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
  1059
                  unknown_outcome)
41772
27d4c768cf20 make Nitpick's timeout mechanism somewhat more reliable/friendly;
blanchet
parents: 41278
diff changeset
  1060
               | TimeLimit.TimeOut =>
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
  1061
                 (print_n "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
  1062
      in
efcad7594872 fix handling of "split" w.r.t. new definition + fix exception handling w.r.t. "expect" option
blanchet
parents: 37146
diff changeset
  1063
        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
  1064
        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
  1065
      end
efcad7594872 fix handling of "split" w.r.t. new definition + fix exception handling w.r.t. "expect" option
blanchet
parents: 37146
diff changeset
  1066
  end
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1067
42486
01b03a124b81 direct use of Variable.is_fixed;
wenzelm
parents: 42415
diff changeset
  1068
fun is_fixed_equation ctxt
35335
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1069
                      (Const (@{const_name "=="}, _) $ Free (s, _) $ Const _) =
42486
01b03a124b81 direct use of Variable.is_fixed;
wenzelm
parents: 42415
diff changeset
  1070
    Variable.is_fixed ctxt s
35335
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1071
  | is_fixed_equation _ _ = false
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1072
fun extract_fixed_frees ctxt (assms, t) =
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1073
  let
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1074
    val (subst, other_assms) =
42486
01b03a124b81 direct use of Variable.is_fixed;
wenzelm
parents: 42415
diff changeset
  1075
      List.partition (is_fixed_equation ctxt) assms
35335
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1076
      |>> map Logic.dest_equals
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1077
  in (subst, other_assms, subst_atomic subst t) end
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1078
43022
7d3ce43d9464 handle non-auto try case gracefully in Nitpick
blanchet
parents: 43020
diff changeset
  1079
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
  1080
  let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1081
    val ctxt = Proof.context_of state
33292
affe60b3d864 renamed raw Proof.get_goal to Proof.raw_goal;
wenzelm
parents: 33233
diff changeset
  1082
    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
  1083
  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
  1084
    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
  1085
      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
  1086
    | n =>
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1087
      let
36406
0a2d5138b77c fixes 2a5c6e7b55cb;
blanchet
parents: 36397
diff changeset
  1088
        val t = Logic.goal_params t i |> fst
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1089
        val assms = map term_of (Assumption.all_assms_of ctxt)
35335
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1090
        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
  1091
      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
  1092
  end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1093
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1094
end;