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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  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 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 -> bool -> 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 -> bool -> 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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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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(* 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) auto 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 auto 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_m f = () |> not auto ? 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_m = pprint_m 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 auto then assm_ts else []
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    val _ =
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      if step = 0 then
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        print_m (fn () => "Nitpicking formula...")
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      else
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        pprint_m (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
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e4d1b5cbd429 added support for "specification" and "ax_specification" constructs to Nitpick
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    val choice_spec_table = const_choice_spec_table ctxt subst
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    val nondefs =
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      nondefs |> filter_out (is_choice_spec_axiom thy choice_spec_table)
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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
75275c796b46 use ML SAT solvers up to a certain time limit, then switch to faster solvers with a timeout -- this becomes necessary with the new, more powerful monotonicity calculus
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    val hol_ctxt as {wf_cache, ...} =
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      {thy = thy, ctxt = ctxt, max_bisim_depth = max_bisim_depth, boxes = boxes,
34982
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       stds = stds, wfs = wfs, user_axioms = user_axioms, debug = debug,
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       whacks = whacks, binary_ints = binary_ints,
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       destroy_constrs = destroy_constrs, specialize = specialize,
41871
394eef237bd1 lower threshold for implicitly using "nitpick_simp" for predicate definitions when "total_consts" is on
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       star_linear_preds = star_linear_preds, total_consts = total_consts,
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       needs = needs, tac_timeout = tac_timeout, evals = evals,
41871
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       case_names = case_names, def_tables = def_tables,
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       nondef_table = nondef_table, nondefs = nondefs, simp_table = simp_table,
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       psimp_table = psimp_table, choice_spec_table = choice_spec_table,
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       intro_table = intro_table, ground_thm_table = ground_thm_table,
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       ersatz_table = ersatz_table, skolems = Unsynchronized.ref [],
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   297
       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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   298
       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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   299
       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
9e367f1c9570 robust handling of types occurring in "eval" and "preconstr" options but not in the goal
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    val real_frees = fold Term.add_frees conj_ts []
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    val _ = null (fold Term.add_tvars conj_ts []) orelse
9e367f1c9570 robust handling of types occurring in "eval" and "preconstr" options but not in the goal
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   303
            error "Nitpick cannot handle goals with schematic type variables."
41875
e3cd0dce9b1a renamed "preconstr" option "need"
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   304
    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) =
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      preprocess_formulas hol_ctxt assm_ts neg_t
33192
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   307
    val got_all_user_axioms =
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      got_all_mono_user_axioms andalso no_poly_user_axioms
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   309
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    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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   315
                   "\" was proved well-founded. Nitpick can compute it \
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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   316
                   \efficiently."
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                 else
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   318
                   "\" could not be proved well-founded. Nitpick might need to \
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   319
                   \unroll it.")))
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   320
    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
   321
    val das_wort_formula = if falsify then "Negated conjecture" else "Formula"
33192
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   322
    val _ =
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   323
      pprint_d (fn () => Pretty.chunks
38171
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diff changeset
   324
          (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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   325
           pretties_for_formulas ctxt "Relevant definitional axiom" def_ts @
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   326
           pretties_for_formulas ctxt "Relevant nondefinitional axiom"
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   327
                                 (tl nondef_ts)))
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   328
    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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   331
41801
ed77524f3429 first steps in implementing "fix_datatype_vals" optimization
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   332
    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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   333
    val def_us = def_ts |> map (nut_from_term hol_ctxt DefEq)
41875
e3cd0dce9b1a renamed "preconstr" option "need"
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   334
    val need_us = need_ts |> map (nut_from_term hol_ctxt Eq)
33558
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diff changeset
   335
    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
   336
      fold add_free_and_const_names (nondef_us @ def_us @ need_us) ([], [])
33558
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   337
    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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   338
      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
   339
    val sound_finitizes =
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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diff changeset
   340
      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
   341
                          | _ => 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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   342
    val standard = forall snd stds
33558
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   343
(*
41888
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   344
    val _ =
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   345
      List.app (print_g o string_for_nut ctxt) (nondef_us @ def_us @ need_us)
33558
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   346
*)
a2db56854b83 optimized Nitpick's encoding and rendering of datatypes whose constructors don't appear in the problem
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diff changeset
   347
34121
5e831d805118 get rid of polymorphic equality in Nitpick's code + a few minor cleanups
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diff changeset
   348
    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
   349
    fun monotonicity_message Ts extra =
38188
7f12a03c513c better "Pretty" handling
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   350
      let val pretties = map (pretty_maybe_quote o pretty_for_type ctxt) Ts in
7f12a03c513c better "Pretty" handling
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diff changeset
   351
        Pretty.blk (0,
7f12a03c513c better "Pretty" handling
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diff changeset
   352
          pstrs ("The type" ^ plural_s_for_list pretties ^ " ") @
7f12a03c513c better "Pretty" handling
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diff changeset
   353
          pretty_serial_commas "and" pretties @
7f12a03c513c better "Pretty" handling
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diff changeset
   354
          pstrs (" " ^
7f12a03c513c better "Pretty" handling
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diff changeset
   355
          (if none_true monos then
7f12a03c513c better "Pretty" handling
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diff changeset
   356
             "passed the monotonicity test"
7f12a03c513c better "Pretty" handling
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   357
           else
7f12a03c513c better "Pretty" handling
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   358
             (if length pretties = 1 then "is" else "are") ^ " considered monotonic") ^
7f12a03c513c better "Pretty" handling
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diff changeset
   359
          ". " ^ extra))
35385
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
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diff changeset
   360
      end
35665
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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diff changeset
   361
    fun is_type_fundamentally_monotonic T =
38240
a44d108a8d39 local versions of Nitpick.register_xxx functions
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diff changeset
   362
      (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
   363
       (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
   364
      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
   365
    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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diff changeset
   366
      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
   367
    fun is_type_kind_of_monotonic T =
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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diff changeset
   368
      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
   369
        SOME (SOME false) => false
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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diff changeset
   370
      | _ => is_type_actually_monotonic T
34936
c4f04bee79f3 some work on Nitpick's support for quotient types;
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diff changeset
   371
    fun is_type_monotonic T =
33192
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diff changeset
   372
      unique_scope orelse
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   373
      case triple_lookup (type_match thy) monos T of
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   374
        SOME (SOME b) => b
35665
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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diff changeset
   375
      | _ => is_type_fundamentally_monotonic T orelse
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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diff changeset
   376
             is_type_actually_monotonic T
41793
c7a2669ae75d tweaked Nitpick based on C++ memory model example
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diff changeset
   377
    fun is_deep_datatype_finitizable T =
c7a2669ae75d tweaked Nitpick based on C++ memory model example
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diff changeset
   378
      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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diff changeset
   379
    fun is_shallow_datatype_finitizable (T as Type (@{type_name fun_box}, _)) =
35665
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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diff changeset
   380
        is_type_kind_of_monotonic T
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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diff changeset
   381
      | is_shallow_datatype_finitizable T =
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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parents: 35408
diff changeset
   382
        case triple_lookup (type_match thy) finitizes T of
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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diff changeset
   383
          SOME (SOME b) => b
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
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diff changeset
   384
        | _ => is_type_kind_of_monotonic T
35385
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
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diff changeset
   385
    fun is_datatype_deep T =
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
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diff changeset
   386
      not standard orelse T = nat_T orelse is_word_type T orelse
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
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diff changeset
   387
      exists (curry (op =) T o domain_type o type_of) sel_names
35386
45a4e19d3ebd more work on the new monotonicity stuff in Nitpick
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parents: 35385
diff changeset
   388
    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
   389
                 |> sort Term_Ord.typ_ord
38214
8164c91039ea added a friendly warning
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parents: 38212
diff changeset
   390
    val _ =
8164c91039ea added a friendly warning
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diff changeset
   391
      if verbose andalso binary_ints = SOME true andalso
8164c91039ea added a friendly warning
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diff changeset
   392
         exists (member (op =) [nat_T, int_T]) all_Ts then
8164c91039ea added a friendly warning
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diff changeset
   393
        print_v (K "The option \"binary_ints\" will be ignored because of the \
8164c91039ea added a friendly warning
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parents: 38212
diff changeset
   394
                   \presence of rationals, reals, \"Suc\", \"gcd\", or \"lcm\" \
8164c91039ea added a friendly warning
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diff changeset
   395
                   \in the problem or because of the \"non_std\" option.")
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   396
      else
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   397
        ()
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   398
    val _ =
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   399
      if not auto andalso
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   400
         exists (fn Type (@{type_name Datatype.node}, _) => true | _ => false)
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   401
                all_Ts then
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   402
        print_m (K ("Warning: The problem involves directly or indirectly the \
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   403
                    \internal type " ^ quote @{type_name Datatype.node} ^
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   404
                    ". This type is very Nitpick-unfriendly, and its presence \
39361
blanchet
parents: 39359
diff changeset
   405
                    \usually indicates either a failure of abstraction or a \
blanchet
parents: 39359
diff changeset
   406
                    \quirk in Nitpick."))
38214
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   407
      else
8164c91039ea added a friendly warning
blanchet
parents: 38212
diff changeset
   408
        ()
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
   409
    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
   410
    val _ =
34936
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   411
      if verbose andalso not unique_scope then
35665
ff2bf50505ab added "finitize" option to Nitpick + remove dependency on "Coinductive_List"
blanchet
parents: 35408
diff changeset
   412
        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
   413
          [] => ()
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   414
        | interesting_mono_Ts =>
38188
7f12a03c513c better "Pretty" handling
blanchet
parents: 38182
diff changeset
   415
          pprint_v (K (monotonicity_message interesting_mono_Ts
7f12a03c513c better "Pretty" handling
blanchet
parents: 38182
diff changeset
   416
                          "Nitpick might be able to skip some scopes."))
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   417
      else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   418
        ()
35385
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
blanchet
parents: 35384
diff changeset
   419
    val (deep_dataTs, shallow_dataTs) =
37256
0dca1ec52999 thread along context instead of theory for typedef lookup
blanchet
parents: 37213
diff changeset
   420
      all_Ts |> filter (is_datatype ctxt stds)
0dca1ec52999 thread along context instead of theory for typedef lookup
blanchet
parents: 37213
diff changeset
   421
             |> List.partition is_datatype_deep
35385
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
blanchet
parents: 35384
diff changeset
   422
    val finitizable_dataTs =
41793
c7a2669ae75d tweaked Nitpick based on C++ memory model example
blanchet
parents: 41791
diff changeset
   423
      (deep_dataTs |> filter_out (is_finite_type hol_ctxt)
c7a2669ae75d tweaked Nitpick based on C++ memory model example
blanchet
parents: 41791
diff changeset
   424
                   |> filter is_deep_datatype_finitizable) @
c7a2669ae75d tweaked Nitpick based on C++ memory model example
blanchet
parents: 41791
diff changeset
   425
      (shallow_dataTs |> filter_out (is_finite_type hol_ctxt)
c7a2669ae75d tweaked Nitpick based on C++ memory model example
blanchet
parents: 41791
diff changeset
   426
                      |> filter is_shallow_datatype_finitizable)
35385
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
blanchet
parents: 35384
diff changeset
   427
    val _ =
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
blanchet
parents: 35384
diff changeset
   428
      if verbose andalso not (null finitizable_dataTs) then
38188
7f12a03c513c better "Pretty" handling
blanchet
parents: 38182
diff changeset
   429
        pprint_v (K (monotonicity_message finitizable_dataTs
7f12a03c513c better "Pretty" handling
blanchet
parents: 38182
diff changeset
   430
                         "Nitpick can use a more precise finite encoding."))
35385
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
blanchet
parents: 35384
diff changeset
   431
      else
29f81babefd7 improved precision of infinite "shallow" datatypes in Nitpick;
blanchet
parents: 35384
diff changeset
   432
        ()
35183
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   433
    (* 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
   434
       provide a hint to the user. *)
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   435
    fun is_struct_induct_step (name, (Rule_Cases.Case {fixes, assumes, ...}, _)) =
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   436
      not (null fixes) andalso
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   437
      exists (String.isSuffix ".hyps" o fst) assumes andalso
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   438
      exists (exists (curry (op =) name o shortest_name o fst)
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   439
              o datatype_constrs hol_ctxt) deep_dataTs
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   440
    val likely_in_struct_induct_step =
42361
23f352990944 modernized structure Proof_Context;
wenzelm
parents: 41995
diff changeset
   441
      exists is_struct_induct_step (Proof_Context.cases_of ctxt)
35183
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   442
    val _ = if 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
   443
              pprint_m (fn () => Pretty.blk (0,
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
   444
                  pstrs "Hint: To check that the induction hypothesis is \
35177
168041f24f80 various cosmetic changes to Nitpick
blanchet
parents: 35075
diff changeset
   445
                        \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
   446
                  [Pretty.mark Markup.sendback (Pretty.blk (0,
35183
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   447
                       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
   448
            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
   449
              ()
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   450
(*
36128
a3d8d5329438 make Nitpick output everything to tracing in debug mode;
blanchet
parents: 36126
diff changeset
   451
    val _ = print_g "Monotonic types:"
a3d8d5329438 make Nitpick output everything to tracing in debug mode;
blanchet
parents: 36126
diff changeset
   452
    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
   453
    val _ = print_g "Nonmonotonic types:"
a3d8d5329438 make Nitpick output everything to tracing in debug mode;
blanchet
parents: 36126
diff changeset
   454
    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
   455
*)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   456
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   457
    val incremental = Int.max (max_potential, max_genuine) >= 2
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   458
    val actual_sat_solver =
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   459
      if sat_solver <> "smart" then
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   460
        if incremental andalso
34936
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   461
           not (member (op =) (Kodkod_SAT.configured_sat_solvers true)
35333
f61de25f71f9 distinguish between Kodkodi warnings and errors in Nitpick;
blanchet
parents: 35280
diff changeset
   462
                       sat_solver) then
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   463
          (print_m (K ("An incremental SAT solver is required: \"SAT4J\" will \
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   464
                       \be used instead of " ^ quote sat_solver ^ "."));
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   465
           "SAT4J")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   466
        else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   467
          sat_solver
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   468
      else
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   469
        Kodkod_SAT.smart_sat_solver_name incremental
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   470
    val _ =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   471
      if sat_solver = "smart" then
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   472
        print_v (fn () =>
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   473
            "Using SAT solver " ^ quote actual_sat_solver ^ ". The following" ^
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   474
            (if incremental then " incremental " else " ") ^
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   475
            "solvers are configured: " ^
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   476
            commas_quote (Kodkod_SAT.configured_sat_solvers incremental) ^ ".")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   477
      else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   478
        ()
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   479
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   480
    val too_big_scopes = Unsynchronized.ref []
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   481
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
   482
    fun problem_for_scope unsound
34124
c4628a1dcf75 added support for binary nat/int representation to Nitpick
blanchet
parents: 34123
diff changeset
   483
            (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
   484
      let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   485
        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
   486
                            (!too_big_scopes)) orelse
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   487
                raise TOO_LARGE ("Nitpick.pick_them_nits_in_term.\
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   488
                                 \problem_for_scope", "too large scope")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   489
(*
36128
a3d8d5329438 make Nitpick output everything to tracing in debug mode;
blanchet
parents: 36126
diff changeset
   490
        val _ = print_g "Offsets:"
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   491
        val _ = List.app (fn (T, j0) =>
36128
a3d8d5329438 make Nitpick output everything to tracing in debug mode;
blanchet
parents: 36126
diff changeset
   492
                             print_g (string_for_type ctxt T ^ " = " ^
a3d8d5329438 make Nitpick output everything to tracing in debug mode;
blanchet
parents: 36126
diff changeset
   493
                                    string_of_int j0))
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   494
                         (Typtab.dest ofs)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   495
*)
41858
37ce158d6266 if "total_consts" is set, report cex's as quasi-genuine
blanchet
parents: 41856
diff changeset
   496
        val effective_total_consts =
41856
7244589c8ccc added "total_consts" option
blanchet
parents: 41803
diff changeset
   497
          case total_consts of
7244589c8ccc added "total_consts" option
blanchet
parents: 41803
diff changeset
   498
            SOME b => b
7244589c8ccc added "total_consts" option
blanchet
parents: 41803
diff changeset
   499
          | 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
   500
        val main_j0 = offset_of_type ofs bool_T
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   501
        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
   502
        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
   503
        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
   504
                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
   505
                           "bad offsets")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   506
        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
   507
        val (free_names, rep_table) =
38170
d74b66ec02ce handle free variables even more gracefully;
blanchet
parents: 38169
diff changeset
   508
          choose_reps_for_free_vars scope pseudo_frees free_names
d74b66ec02ce handle free variables even more gracefully;
blanchet
parents: 38169
diff changeset
   509
                                    NameTable.empty
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   510
        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
   511
        val (nonsel_names, rep_table) =
41858
37ce158d6266 if "total_consts" is set, report cex's as quasi-genuine
blanchet
parents: 41856
diff changeset
   512
          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
   513
                                 rep_table
38182
747f8077b09a more helpful message
blanchet
parents: 38171
diff changeset
   514
        val (guiltiest_party, min_highest_arity) =
747f8077b09a more helpful message
blanchet
parents: 38171
diff changeset
   515
          NameTable.fold (fn (name, R) => fn (s, n) =>
747f8077b09a more helpful message
blanchet
parents: 38171
diff changeset
   516
                             let val n' = arity_of_rep R in
747f8077b09a more helpful message
blanchet
parents: 38171
diff changeset
   517
                               if n' > n then (nickname_of name, n') else (s, n)
747f8077b09a more helpful message
blanchet
parents: 38171
diff changeset
   518
                             end) rep_table ("", 1)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   519
        val min_univ_card =
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   520
          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
   521
                         (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
   522
        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
   523
                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
   524
41802
7592a165fa0b more work on "fix_datatype_vals"
blanchet
parents: 41801
diff changeset
   525
        val def_us =
7592a165fa0b more work on "fix_datatype_vals"
blanchet
parents: 41801
diff changeset
   526
          def_us |> map (choose_reps_in_nut scope unsound rep_table true)
7592a165fa0b more work on "fix_datatype_vals"
blanchet
parents: 41801
diff changeset
   527
        val nondef_us =
7592a165fa0b more work on "fix_datatype_vals"
blanchet
parents: 41801
diff changeset
   528
          nondef_us |> map (choose_reps_in_nut scope unsound rep_table false)
41875
e3cd0dce9b1a renamed "preconstr" option "need"
blanchet
parents: 41872
diff changeset
   529
        val need_us =
e3cd0dce9b1a renamed "preconstr" option "need"
blanchet
parents: 41872
diff changeset
   530
          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
   531
(*
36128
a3d8d5329438 make Nitpick output everything to tracing in debug mode;
blanchet
parents: 36126
diff changeset
   532
        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
   533
                         (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
   534
                          nondef_us @ def_us @ need_us)
33745
daf236998f82 comment out debugging code in Nitpick
blanchet
parents: 33744
diff changeset
   535
*)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   536
        val (free_rels, pool, rel_table) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   537
          rename_free_vars free_names initial_pool NameTable.empty
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   538
        val (sel_rels, pool, rel_table) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   539
          rename_free_vars sel_names pool rel_table
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   540
        val (other_rels, pool, rel_table) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   541
          rename_free_vars nonsel_names pool rel_table
41802
7592a165fa0b more work on "fix_datatype_vals"
blanchet
parents: 41801
diff changeset
   542
        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
   543
        val def_us = def_us |> map (rename_vars_in_nut pool rel_table)
41875
e3cd0dce9b1a renamed "preconstr" option "need"
blanchet
parents: 41872
diff changeset
   544
        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
   545
        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
   546
        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
   547
        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
   548
        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
   549
                      Print_Mode.setmp [] multiline_string_for_scope scope
34998
5e492a862b34 four changes to Nitpick:
blanchet
parents: 34982
diff changeset
   550
        val kodkod_sat_solver =
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   551
          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
   552
        val bit_width = if bits = 0 then 16 else bits + 1
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   553
        val delay =
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   554
          if unsound then
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   555
            Option.map (fn time => Time.- (time, Time.now ())) deadline
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   556
            |> unsound_delay_for_timeout
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   557
          else
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   558
            0
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   559
        val settings = [("solver", commas_quote kodkod_sat_solver),
34124
c4628a1dcf75 added support for binary nat/int representation to Nitpick
blanchet
parents: 34123
diff changeset
   560
                        ("bit_width", string_of_int bit_width),
38124
6538e25cf5dd started implementation of custom sym break
blanchet
parents: 38123
diff changeset
   561
                        ("symmetry_breaking", string_of_int kodkod_sym_break),
36386
2132f15b366f Fruhjahrsputz: remove three mostly useless Nitpick options
blanchet
parents: 36385
diff changeset
   562
                        ("sharing", "3"),
2132f15b366f Fruhjahrsputz: remove three mostly useless Nitpick options
blanchet
parents: 36385
diff changeset
   563
                        ("flatten", "false"),
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   564
                        ("delay", signed_string_of_int delay)]
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   565
        val plain_rels = free_rels @ other_rels
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   566
        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
   567
        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
   568
        val need_vals =
03c2d29ec790 optimize Kodkod bounds when "need" is specified
blanchet
parents: 41993
diff changeset
   569
          map (fn dtype as {typ, ...} =>
03c2d29ec790 optimize Kodkod bounds when "need" is specified
blanchet
parents: 41993
diff changeset
   570
                  (typ, needed_values_for_datatype need_us ofs dtype)) datatypes
03c2d29ec790 optimize Kodkod bounds when "need" is specified
blanchet
parents: 41993
diff changeset
   571
        val sel_bounds =
03c2d29ec790 optimize Kodkod bounds when "need" is specified
blanchet
parents: 41993
diff changeset
   572
          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
   573
        val dtype_axioms =
41995
03c2d29ec790 optimize Kodkod bounds when "need" is specified
blanchet
parents: 41993
diff changeset
   574
          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
   575
              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
   576
        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
   577
        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
   578
                                     (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
   579
                                 main_j0 |> bits > 0 ? Integer.add (bits + 1))
38126
8031d099379a added manual symmetry breaking for datatypes
blanchet
parents: 38124
diff changeset
   580
        val (built_in_bounds, built_in_axioms) =
39345
062c10ff848c remove unreferenced identifiers
blanchet
parents: 39316
diff changeset
   581
          bounds_and_axioms_for_built_in_rels_in_formulas debug univ_card
062c10ff848c remove unreferenced identifiers
blanchet
parents: 39316
diff changeset
   582
              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
   583
        val bounds = built_in_bounds @ plain_bounds @ sel_bounds
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   584
                     |> not debug ? merge_bounds
38126
8031d099379a added manual symmetry breaking for datatypes
blanchet
parents: 38124
diff changeset
   585
        val axioms = built_in_axioms @ declarative_axioms
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   586
        val highest_arity =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   587
          fold Integer.max (map (fst o fst) (maps fst bounds)) 0
38126
8031d099379a added manual symmetry breaking for datatypes
blanchet
parents: 38124
diff changeset
   588
        val formula = fold_rev s_and axioms formula
34124
c4628a1dcf75 added support for binary nat/int representation to Nitpick
blanchet
parents: 34123
diff changeset
   589
        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
   590
        val _ = if debug orelse formula = KK.False then ()
38182
747f8077b09a more helpful message
blanchet
parents: 38171
diff changeset
   591
                else check_arity "" univ_card highest_arity
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   592
      in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   593
        SOME ({comment = comment, settings = settings, univ_card = univ_card,
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   594
               tuple_assigns = [], bounds = bounds,
35280
54ab4921f826 fixed a few bugs in Nitpick and removed unreferenced variables
blanchet
parents: 35220
diff changeset
   595
               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
   596
                            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
   597
               expr_assigns = [], formula = formula},
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   598
              {free_names = free_names, sel_names = sel_names,
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   599
               nonsel_names = nonsel_names, rel_table = rel_table,
35386
45a4e19d3ebd more work on the new monotonicity stuff in Nitpick
blanchet
parents: 35385
diff changeset
   600
               unsound = unsound, scope = scope})
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   601
      end
34124
c4628a1dcf75 added support for binary nat/int representation to Nitpick
blanchet
parents: 34123
diff changeset
   602
      handle TOO_LARGE (loc, msg) =>
34936
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   603
             if loc = "Nitpick_Kodkod.check_arity" andalso
c4f04bee79f3 some work on Nitpick's support for quotient types;
blanchet
parents: 34935
diff changeset
   604
                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
   605
               problem_for_scope unsound
35190
ce653cc27a94 make sure that Nitpick uses binary notation consistently if "binary_ints" is enabled
blanchet
parents: 35185
diff changeset
   606
                   {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
   607
                    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
   608
                    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
   609
                    ofs = Typtab.empty}
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   610
             else if loc = "Nitpick.pick_them_nits_in_term.\
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   611
                           \problem_for_scope" then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   612
               NONE
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   613
             else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   614
               (Unsynchronized.change too_big_scopes (cons scope);
41992
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   615
                print_v (fn () =>
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   616
                    "Limit reached: " ^ msg ^ ". Skipping " ^
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   617
                    (if unsound then "potential component of " else "") ^
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   618
                    "scope.");
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   619
                NONE)
35280
54ab4921f826 fixed a few bugs in Nitpick and removed unreferenced variables
blanchet
parents: 35220
diff changeset
   620
           | TOO_SMALL (_, msg) =>
41992
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   621
             (print_v (fn () =>
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   622
                  "Limit reached: " ^ msg ^ ". Skipping " ^
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   623
                  (if unsound then "potential component of " else "") ^
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   624
                  "scope.");
34124
c4628a1dcf75 added support for binary nat/int representation to Nitpick
blanchet
parents: 34123
diff changeset
   625
              NONE)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   626
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
   627
    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
   628
      (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
   629
      |> not standard ? prefix "nonstandard "
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   630
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   631
    val scopes = Unsynchronized.ref []
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   632
    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
   633
    val generated_problems = Unsynchronized.ref ([] : rich_problem list)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   634
    val checked_problems = Unsynchronized.ref (SOME [])
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   635
    val met_potential = Unsynchronized.ref 0
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   636
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   637
    fun update_checked_problems problems =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   638
      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
   639
                o nth problems)
35333
f61de25f71f9 distinguish between Kodkodi warnings and errors in Nitpick;
blanchet
parents: 35280
diff changeset
   640
    fun show_kodkod_warning "" = ()
35334
b83b9f2a4b92 show Kodkod warning message even in non-verbose mode
blanchet
parents: 35333
diff changeset
   641
      | show_kodkod_warning s = print_m (fn () => "Kodkod warning: " ^ s ^ ".")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   642
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   643
    fun print_and_check_model genuine bounds
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   644
            ({free_names, sel_names, nonsel_names, rel_table, scope, ...}
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   645
             : problem_extension) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   646
      let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   647
        val (reconstructed_model, codatatypes_ok) =
41993
bd6296de1432 reintroduced "show_skolems" option -- useful when too many Skolems are displayed
blanchet
parents: 41992
diff changeset
   648
          reconstruct_hol_model
bd6296de1432 reintroduced "show_skolems" option -- useful when too many Skolems are displayed
blanchet
parents: 41992
diff changeset
   649
              {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
   650
               show_consts = show_consts}
38170
d74b66ec02ce handle free variables even more gracefully;
blanchet
parents: 38169
diff changeset
   651
              scope formats atomss real_frees pseudo_frees free_names sel_names
d74b66ec02ce handle free variables even more gracefully;
blanchet
parents: 38169
diff changeset
   652
              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
   653
        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
   654
          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
   655
          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
   656
          codatatypes_ok
38169
b51784515471 optimize local "def"s by treating them as definitions
blanchet
parents: 38126
diff changeset
   657
        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
   658
      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
   659
        (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
   660
             [Pretty.blk (0,
40223
9f001f7e6c0c clear identification
blanchet
parents: 40132
diff changeset
   661
                  (pstrs ((if auto then "Auto " else "") ^ "Nitpick found a" ^
41992
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   662
                          (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
   663
                           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
   664
                           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
   665
                   (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
   666
                      [] => []
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   667
                    | 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
   668
                   [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
   669
              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
   670
         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
   671
           (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
   672
              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
   673
                                   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
   674
                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
   675
                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
   676
                       das_wort_model ^ " is really genuine.")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   677
              | 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
   678
                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
   679
                  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
   680
                         \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
   681
                         \happen.\nPlease send a bug report to blanchet\
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   682
                         \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
   683
                 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
   684
                   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
   685
                          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
   686
               | 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
   687
            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
   688
              ();
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 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
   690
              print "The existence of a nonstandard model suggests that the \
36126
00d550b6cfd4 cosmetics
blanchet
parents: 35968
diff changeset
   691
                    \induction hypothesis is not general enough or may even be \
00d550b6cfd4 cosmetics
blanchet
parents: 35968
diff changeset
   692
                    \wrong. See the Nitpick manual's \"Inductive Properties\" \
00d550b6cfd4 cosmetics
blanchet
parents: 35968
diff changeset
   693
                    \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
   694
            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
   695
              ();
41048
d5ebe94248ad added a hint when the user obviously just forgot a colon after the lemma's name
blanchet
parents: 41007
diff changeset
   696
            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
   697
              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
   698
            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
   699
              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
   700
            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
   701
              ();
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
            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
   703
              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
   704
                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
   705
                  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
   706
                    [] |> 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
   707
                          ? 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
   708
                       |> 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
   709
                          ? 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
   710
                       |> 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
   711
                          ? cons ("finitize", "\"smart\" or \"false\"")
41858
37ce158d6266 if "total_consts" is set, report cex's as quasi-genuine
blanchet
parents: 41856
diff changeset
   712
                       |> total_consts = SOME true
37ce158d6266 if "total_consts" is set, report cex's as quasi-genuine
blanchet
parents: 41856
diff changeset
   713
                          ? 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
   714
                       |> 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
   715
                          ? 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
   716
                  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
   717
                    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
   718
                        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
   719
                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
   720
                  print ("Try again with " ^
41872
10fd9e5d58ba added missing spaces in output
blanchet
parents: 41871
diff changeset
   721
                         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
   722
                         " 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
   723
                         " 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
   724
                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
   725
              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
   726
                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
   727
                       \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
   728
                       \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
   729
            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
   730
              ();
ed2c3830d881 improved Nitpick's precision for "card" and "setsum" + fix incorrect outcome code w.r.t. "bisim_depth = -1"
blanchet
parents: 35665
diff changeset
   731
            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
   732
         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
   733
           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
   734
             (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
   735
              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
   736
                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
   737
                  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
   738
                                               sel_names rel_table bounds
b51784515471 optimize local "def"s by treating them as definitions
blanchet
parents: 38126
diff changeset
   739
                                               (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
   740
                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
   741
                  (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
   742
                     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
   743
                                         \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
   744
                                         " 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
   745
                   | 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
   746
                                          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
   747
                   | 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
   748
                  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
   749
                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
   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
                NONE)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   752
           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
   753
             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
   754
        |> pair genuine_means_genuine
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   755
      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
   756
    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
   757
                           donno) first_time problems =
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   758
      let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   759
        val max_potential = Int.max (0, max_potential)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   760
        val max_genuine = Int.max (0, max_genuine)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   761
        fun print_and_check genuine (j, bounds) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   762
          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
   763
        val max_solutions = max_potential + max_genuine
36384
76d5fd5a45fb cosmetics
blanchet
parents: 36380
diff changeset
   764
                            |> not incremental ? Integer.min 1
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   765
      in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   766
        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
   767
          (found_really_genuine, 0, 0, donno)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   768
        else
41793
c7a2669ae75d tweaked Nitpick based on C++ memory model example
blanchet
parents: 41791
diff changeset
   769
          case KK.solve_any_problem debug overlord deadline max_threads
c7a2669ae75d tweaked Nitpick based on C++ memory model example
blanchet
parents: 41791
diff changeset
   770
                                    max_solutions (map fst problems) of
35696
17ae461d6133 show nice error message in Nitpick when "java" is not available
blanchet
parents: 35671
diff changeset
   771
            KK.JavaNotInstalled =>
17ae461d6133 show nice error message in Nitpick when "java" is not available
blanchet
parents: 35671
diff changeset
   772
            (print_m install_java_message;
17ae461d6133 show nice error message in Nitpick when "java" is not available
blanchet
parents: 35671
diff changeset
   773
             (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
   774
          | KK.JavaTooOld =>
307669429dc1 gracefully handle the case where the JVM is too old in Nitpick
blanchet
parents: 38240
diff changeset
   775
            (print_m install_java_message;
307669429dc1 gracefully handle the case where the JVM is too old in Nitpick
blanchet
parents: 38240
diff changeset
   776
             (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
   777
          | KK.KodkodiNotInstalled =>
33568
532b915afa14 don't run Nitpick at all if Kodkodi is not installed (as indicated by the $KODKODI variable)
blanchet
parents: 33566
diff changeset
   778
            (print_m 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
   779
             (found_really_genuine, max_potential, max_genuine, donno + 1))
35333
f61de25f71f9 distinguish between Kodkodi warnings and errors in Nitpick;
blanchet
parents: 35280
diff changeset
   780
          | KK.Normal ([], unsat_js, s) =>
f61de25f71f9 distinguish between Kodkodi warnings and errors in Nitpick;
blanchet
parents: 35280
diff changeset
   781
            (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
   782
             (found_really_genuine, max_potential, max_genuine, donno))
35333
f61de25f71f9 distinguish between Kodkodi warnings and errors in Nitpick;
blanchet
parents: 35280
diff changeset
   783
          | KK.Normal (sat_ps, unsat_js, s) =>
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   784
            let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   785
              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
   786
                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
   787
            in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   788
              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
   789
              show_kodkod_warning s;
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   790
              if null con_ps then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   791
                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
   792
                  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
   793
                    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
   794
                           |> 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
   795
                           |> 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
   796
                  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
   797
                    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
   798
                  val num_genuine = length genuine_codes
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   799
                  val max_genuine = max_genuine - num_genuine
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   800
                  val max_potential = max_potential
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   801
                                      - (length lib_ps - num_genuine)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   802
                in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   803
                  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
   804
                    (found_really_genuine, 0, 0, donno)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   805
                  else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   806
                    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
   807
                      (* "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
   808
                         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
   809
                         probably can't be satisfied themselves. *)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   810
                      val co_js =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   811
                        map (fn j => j - 1) unsat_js
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   812
                        |> filter (fn j =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   813
                                      j >= 0 andalso
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   814
                                      scopes_equivalent
35814
234eaa508359 added one-entry cache around Kodkod invocation
blanchet
parents: 35807
diff changeset
   815
                                          (#scope (snd (nth problems j)),
234eaa508359 added one-entry cache around Kodkod invocation
blanchet
parents: 35807
diff changeset
   816
                                           #scope (snd (nth problems (j + 1)))))
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   817
                      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
   818
                                                          unsat_js @ co_js)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   819
                      val problems =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   820
                        problems |> filter_out_indices bye_js
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   821
                                 |> 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
   822
                                    ? filter_out (#unsound o snd)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   823
                    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
   824
                      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
   825
                                         max_genuine, donno) false problems
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   826
                    end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   827
                end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   828
              else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   829
                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
   830
                  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
   831
                    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
   832
                           |> 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
   833
                  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
   834
                  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
   835
                    found_really_genuine orelse exists fst genuine_codes
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   836
                in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   837
                  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
   838
                    (found_really_genuine, 0, max_genuine, donno)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   839
                  else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   840
                    let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   841
                      val bye_js = sort_distinct int_ord
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   842
                                                 (map fst sat_ps @ unsat_js)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   843
                      val problems =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   844
                        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
   845
                                 |> 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
   846
                    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
   847
                      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
   848
                                         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
   849
                    end
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   850
                end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   851
            end
34126
8a2c5d7aff51 polished Nitpick's binary integer support etc.;
blanchet
parents: 34124
diff changeset
   852
          | KK.TimedOut unsat_js =>
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   853
            (update_checked_problems problems unsat_js; raise TimeLimit.TimeOut)
34126
8a2c5d7aff51 polished Nitpick's binary integer support etc.;
blanchet
parents: 34124
diff changeset
   854
          | KK.Error (s, unsat_js) =>
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   855
            (update_checked_problems problems unsat_js;
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   856
             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
   857
             (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
   858
      end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   859
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
   860
    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
   861
                              donno) =
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   862
      let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   863
        val _ =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   864
          if null scopes then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   865
            print_m (K "The scope specification is inconsistent.")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   866
          else if verbose then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   867
            pprint (Pretty.chunks
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   868
                [Pretty.blk (0,
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   869
                     pstrs ((if n > 1 then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   870
                               "Batch " ^ string_of_int (j + 1) ^ " of " ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   871
                               signed_string_of_int n ^ ": "
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   872
                             else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   873
                               "") ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   874
                            "Trying " ^ string_of_int (length scopes) ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   875
                            " scope" ^ plural_s_for_list scopes ^ ":")),
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   876
                 Pretty.indent indent_size
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   877
                     (Pretty.chunks (map2
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   878
                          (fn j => fn scope =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   879
                              Pretty.block (
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   880
                                  (case pretties_for_scope scope true of
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   881
                                     [] => [Pretty.str "Empty"]
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   882
                                   | pretties => pretties) @
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   883
                                  [Pretty.str (if j = 1 then "." else ";")]))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   884
                          (length scopes downto 1) scopes))])
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   885
          else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   886
            ()
35280
54ab4921f826 fixed a few bugs in Nitpick and removed unreferenced variables
blanchet
parents: 35220
diff changeset
   887
        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
   888
          (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
   889
           case problem_for_scope unsound scope of
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   890
             SOME problem =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   891
             (problems
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   892
              |> (null problems orelse
35814
234eaa508359 added one-entry cache around Kodkod invocation
blanchet
parents: 35807
diff changeset
   893
                  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
   894
                  ? cons problem, donno)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   895
           | NONE => (problems, donno + 1))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   896
        val (problems, donno) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   897
          fold add_problem_for_scope
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   898
               (map_product pair scopes
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   899
                    ((if max_genuine > 0 then [false] else []) @
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   900
                     (if max_potential > 0 then [true] else [])))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   901
               ([], donno)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   902
        val _ = Unsynchronized.change generated_problems (append problems)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   903
        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
   904
        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
   905
          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
   906
            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
   907
              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
   908
                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
   909
            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
   910
              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
   911
                 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
   912
                        sound_problems 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
   913
                print_m (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
   914
                    "Warning: The conjecture either trivially holds for the \
35384
88dbcfe75c45 cosmetics
blanchet
parents: 35335
diff changeset
   915
                    \given scopes or lies outside Nitpick's supported \
88dbcfe75c45 cosmetics
blanchet
parents: 35335
diff changeset
   916
                    \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
   917
                    (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
   918
                               unsound_problems then
41992
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   919
                       " Only potentially spurious " ^ das_wort_model ^
0e4716fa330a reword Nitpick's wording concerning potential counterexamples
blanchet
parents: 41985
diff changeset
   920
                       "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
   921
                     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
   922
                       ""))
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
              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
   924
                ()
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
            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
   926
          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
   927
            ()
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   928
      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
   929
        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
   930
                           donno) true (rev problems)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   931
      end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   932
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   933
    fun scope_count (problems : rich_problem list) scope =
35814
234eaa508359 added one-entry cache around Kodkod invocation
blanchet
parents: 35807
diff changeset
   934
      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
   935
    fun excipit did_so_and_so =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   936
      let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   937
        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
   938
          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
   939
          else I
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   940
        val total = length (!scopes)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   941
        val unsat =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   942
          fold (fn scope =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   943
                   case scope_count (do_filter (!generated_problems)) scope of
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   944
                     0 => I
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   945
                   | 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
   946
                     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
   947
                                 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
   948
                     ? Integer.add 1) (!generated_scopes) 0
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   949
      in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   950
        "Nitpick " ^ did_so_and_so ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   951
        (if is_some (!checked_problems) andalso total > 0 then
39361
blanchet
parents: 39359
diff changeset
   952
           " " ^ string_of_int unsat ^ " of " ^ string_of_int total ^ " scope"
blanchet
parents: 39359
diff changeset
   953
           ^ plural_s total
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   954
         else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   955
           "") ^ "."
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   956
      end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   957
37704
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   958
    val (skipped, the_scopes) =
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   959
      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
   960
                 bitss bisim_depths mono_Ts nonmono_Ts deep_dataTs
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   961
                 finitizable_dataTs
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   962
    val _ = if skipped > 0 then
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   963
              print_m (fn () => "Too many scopes. Skipping " ^
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   964
                                string_of_int skipped ^ " scope" ^
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   965
                                plural_s skipped ^
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   966
                                ". (Consider using \"mono\" or \
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   967
                                \\"merge_type_vars\" to prevent this.)")
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   968
            else
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   969
              ()
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   970
    val _ = scopes := the_scopes
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   971
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
   972
    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
   973
                    (found_really_genuine, max_potential, max_genuine, donno) =
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   974
        if donno > 0 andalso max_genuine > 0 then
35696
17ae461d6133 show nice error message in Nitpick when "java" is not available
blanchet
parents: 35671
diff changeset
   975
          (print_m (fn () => excipit "checked"); "unknown")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   976
        else if max_genuine = original_max_genuine then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   977
          if max_potential = original_max_potential 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
   978
            (print_m (fn () =>
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
   979
                 "Nitpick found no " ^ das_wort_model ^ "." ^
35183
8580ba651489 reintroduce structural induction hint in Nitpick
blanchet
parents: 35181
diff changeset
   980
                 (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
   981
                    " 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
   982
                    \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
   983
                  else
37704
c6161bee8486 adapt Nitpick to "prod_case" and "*" -> "sum" renaming;
blanchet
parents: 37497
diff changeset
   984
                    "")); if skipped > 0 then "unknown" else "none")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   985
          else
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
   986
            (print_m (fn () =>
38123
36f649db4a6c clarify Nitpick's output in case of a potential counterexample
blanchet
parents: 37928
diff changeset
   987
                 excipit ("could not find a" ^
36f649db4a6c clarify Nitpick's output in case of a potential counterexample
blanchet
parents: 37928
diff changeset
   988
                          (if max_genuine = 1 then
36f649db4a6c clarify Nitpick's output in case of a potential counterexample
blanchet
parents: 37928
diff changeset
   989
                             " better " ^ das_wort_model ^ "."
36f649db4a6c clarify Nitpick's output in case of a potential counterexample
blanchet
parents: 37928
diff changeset
   990
                           else
36f649db4a6c clarify Nitpick's output in case of a potential counterexample
blanchet
parents: 37928
diff changeset
   991
                             "ny better " ^ das_wort_model ^ "s.") ^
36f649db4a6c clarify Nitpick's output in case of a potential counterexample
blanchet
parents: 37928
diff changeset
   992
                          " It checked"));
36f649db4a6c clarify Nitpick's output in case of a potential counterexample
blanchet
parents: 37928
diff changeset
   993
             "potential")
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
   994
        else if found_really_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
   995
          "genuine"
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   996
        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
   997
          "quasi_genuine"
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   998
      | 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
   999
        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
  1000
          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
  1001
        end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1002
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1003
    val batches = batch_list batch_size (!scopes)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1004
    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
  1005
      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
  1006
                  (false, max_potential, max_genuine, 0)
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1007
      handle TimeLimit.TimeOut =>
35696
17ae461d6133 show nice error message in Nitpick when "java" is not available
blanchet
parents: 35671
diff changeset
  1008
             (print_m (fn () => excipit "ran out of time after checking");
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1009
              if !met_potential > 0 then "potential" else "unknown")
40341
03156257040f standardize on seconds for Nitpick and Sledgehammer timeouts
blanchet
parents: 40223
diff changeset
  1010
    val _ = print_v (fn () =>
03156257040f standardize on seconds for Nitpick and Sledgehammer timeouts
blanchet
parents: 40223
diff changeset
  1011
                "Total time: " ^ string_from_time (Timer.checkRealTimer timer) ^
03156257040f standardize on seconds for Nitpick and Sledgehammer timeouts
blanchet
parents: 40223
diff changeset
  1012
                ".")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1013
  in (outcome_code, !state_ref) end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1014
41051
2ed1b971fc20 give the inner timeout mechanism a chance, since it gives more precise information to the user
blanchet
parents: 41048
diff changeset
  1015
(* Give the inner timeout a chance. *)
41772
27d4c768cf20 make Nitpick's timeout mechanism somewhat more reliable/friendly;
blanchet
parents: 41278
diff changeset
  1016
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
  1017
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
  1018
fun pick_nits_in_term state (params as {debug, timeout, expect, ...}) auto i n
38169
b51784515471 optimize local "def"s by treating them as definitions
blanchet
parents: 38126
diff changeset
  1019
                      step subst assm_ts orig_t =
41772
27d4c768cf20 make Nitpick's timeout mechanism somewhat more reliable/friendly;
blanchet
parents: 41278
diff changeset
  1020
  let val print_m = if auto then K () else Output.urgent_message 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
  1021
    if getenv "KODKODI" = "" then
37497
71fdbffe3275 distinguish between "unknown" and "no Kodkodi installed" errors
blanchet
parents: 37273
diff changeset
  1022
      (* 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
  1023
         that the "Nitpick_Examples" can be processed on any machine. *)
41772
27d4c768cf20 make Nitpick's timeout mechanism somewhat more reliable/friendly;
blanchet
parents: 41278
diff changeset
  1024
      (print_m (Pretty.string_of (plazy install_kodkodi_message));
37497
71fdbffe3275 distinguish between "unknown" and "no Kodkodi installed" errors
blanchet
parents: 37273
diff changeset
  1025
       ("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
  1026
    else
efcad7594872 fix handling of "split" w.r.t. new definition + fix exception handling w.r.t. "expect" option
blanchet
parents: 37146
diff changeset
  1027
      let
37497
71fdbffe3275 distinguish between "unknown" and "no Kodkodi installed" errors
blanchet
parents: 37273
diff changeset
  1028
        val unknown_outcome = ("unknown", 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
  1029
        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
  1030
        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
  1031
          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
  1032
                      else SOME (Time.+ (the timeout, timeout_bonus)))
37213
efcad7594872 fix handling of "split" w.r.t. new definition + fix exception handling w.r.t. "expect" option
blanchet
parents: 37146
diff changeset
  1033
              (pick_them_nits_in_term deadline state params auto i n step subst
38169
b51784515471 optimize local "def"s by treating them as definitions
blanchet
parents: 38126
diff changeset
  1034
                                      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
  1035
          handle TOO_LARGE (_, details) =>
41772
27d4c768cf20 make Nitpick's timeout mechanism somewhat more reliable/friendly;
blanchet
parents: 41278
diff changeset
  1036
                 (print_m ("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
  1037
               | TOO_SMALL (_, details) =>
41772
27d4c768cf20 make Nitpick's timeout mechanism somewhat more reliable/friendly;
blanchet
parents: 41278
diff changeset
  1038
                 (print_m ("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
  1039
               | Kodkod.SYNTAX (_, details) =>
41772
27d4c768cf20 make Nitpick's timeout mechanism somewhat more reliable/friendly;
blanchet
parents: 41278
diff changeset
  1040
                 (print_m ("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
  1041
                  unknown_outcome)
41772
27d4c768cf20 make Nitpick's timeout mechanism somewhat more reliable/friendly;
blanchet
parents: 41278
diff changeset
  1042
               | TimeLimit.TimeOut =>
27d4c768cf20 make Nitpick's timeout mechanism somewhat more reliable/friendly;
blanchet
parents: 41278
diff changeset
  1043
                 (print_m "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
  1044
      in
efcad7594872 fix handling of "split" w.r.t. new definition + fix exception handling w.r.t. "expect" option
blanchet
parents: 37146
diff changeset
  1045
        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
  1046
        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
  1047
      end
efcad7594872 fix handling of "split" w.r.t. new definition + fix exception handling w.r.t. "expect" option
blanchet
parents: 37146
diff changeset
  1048
  end
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1049
35335
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1050
fun is_fixed_equation fixes
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1051
                      (Const (@{const_name "=="}, _) $ Free (s, _) $ Const _) =
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1052
    member (op =) fixes s
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1053
  | is_fixed_equation _ _ = false
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1054
fun extract_fixed_frees ctxt (assms, t) =
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1055
  let
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1056
    val fixes = Variable.fixes_of ctxt |> map snd
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1057
    val (subst, other_assms) =
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1058
      List.partition (is_fixed_equation fixes) assms
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1059
      |>> map Logic.dest_equals
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1060
  in (subst, other_assms, subst_atomic subst t) end
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1061
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
  1062
fun pick_nits_in_subgoal state params auto i step =
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1063
  let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1064
    val ctxt = Proof.context_of state
33292
affe60b3d864 renamed raw Proof.get_goal to Proof.raw_goal;
wenzelm
parents: 33233
diff changeset
  1065
    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
  1066
  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
  1067
    case Logic.count_prems t of
40132
7ee65dbffa31 renamed Output.priority to Output.urgent_message to emphasize its special role more clearly;
wenzelm
parents: 39361
diff changeset
  1068
      0 => (Output.urgent_message "No subgoal!"; ("none", 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
  1069
    | n =>
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1070
      let
36406
0a2d5138b77c fixes 2a5c6e7b55cb;
blanchet
parents: 36397
diff changeset
  1071
        val t = Logic.goal_params t i |> fst
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1072
        val assms = map term_of (Assumption.all_assms_of ctxt)
35335
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1073
        val (subst, assms, t) = extract_fixed_frees ctxt (assms, t)
f715cfde056a support local definitions in Nitpick
blanchet
parents: 35334
diff changeset
  1074
      in pick_nits_in_term state params auto i n step subst assms t end
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1075
  end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1076
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
  1077
end;