src/HOL/Tools/Nitpick/nitpick.ML
author blanchet
Thu, 05 Nov 2009 17:03:22 +0100
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child 33705 947184dc75c9
permissions -rw-r--r--
added datatype constructor cache in Nitpick (to speed up the scope enumeration) and never test more than 4096 scopes
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(*  Title:      HOL/Nitpick/Tools/nitpick.ML
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    Author:     Jasmin Blanchette, TU Muenchen
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    Copyright   2008, 2009
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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 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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    bisim_depths: int list,
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    boxes: (typ option * bool option) list,
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    monos: (typ option * bool option) 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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    merge_type_vars: bool,
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    destroy_constrs: bool,
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    specialize: bool,
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    skolemize: bool,
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    star_linear_preds: bool,
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    uncurry: bool,
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    fast_descrs: bool,
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    peephole_optim: bool,
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    timeout: Time.time option,
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    tac_timeout: Time.time option,
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    sym_break: int,
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    sharing_depth: int,
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    flatten_props: bool,
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    max_threads: int,
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    show_skolems: bool,
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    show_datatypes: 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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    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 pick_nits_in_term :
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    Proof.state -> params -> bool -> term list -> term -> string * Proof.state
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  val pick_nits_in_subgoal :
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    Proof.state -> params -> bool -> 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_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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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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  bisim_depths: int list,
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  boxes: (typ option * bool option) list,
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  monos: (typ option * bool option) 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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  merge_type_vars: bool,
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  destroy_constrs: bool,
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  specialize: bool,
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  skolemize: bool,
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  star_linear_preds: bool,
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  uncurry: bool,
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  fast_descrs: bool,
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  peephole_optim: bool,
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  timeout: Time.time option,
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  tac_timeout: Time.time option,
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  sym_break: int,
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  sharing_depth: int,
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  flatten_props: bool,
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  max_threads: int,
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  show_skolems: bool,
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  show_datatypes: 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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  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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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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  liberal: bool,
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  scope: scope,
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  core: Kodkod.formula,
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  defs: Kodkod.formula list}
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type rich_problem = Kodkod.problem * problem_extension
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(* Proof.context -> string -> term list -> Pretty.T list *)
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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_const_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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(* unit -> string *)
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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.implode (Path.expand (Path.appends
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      (Path.variable "ISABELLE_HOME_USER" ::
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       map Path.basic ["etc", "components"]))) ^ "\"."
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val max_liberal_delay_ms = 200
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val max_liberal_delay_percent = 2
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(* Time.time option -> int *)
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fun liberal_delay_for_timeout NONE = max_liberal_delay_ms
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  | liberal_delay_for_timeout (SOME timeout) =
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    Int.max (0, Int.min (max_liberal_delay_ms,
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                         Time.toMilliseconds timeout
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                         * max_liberal_delay_percent div 100))
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(* Time.time option -> bool *)
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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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(* ('a * bool option) list -> bool *)
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fun none_true asgns = forall (not_equal (SOME true) o snd) asgns
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val weaselly_sorts =
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  [@{sort default}, @{sort zero}, @{sort one}, @{sort plus}, @{sort minus},
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   @{sort uminus}, @{sort times}, @{sort inverse}, @{sort abs}, @{sort sgn},
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   @{sort ord}, @{sort eq}, @{sort number}]
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(* theory -> typ -> bool *)
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fun is_tfree_with_weaselly_sort thy (TFree (_, S)) =
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    exists (curry (Sign.subsort thy) S) weaselly_sorts
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  | is_tfree_with_weaselly_sort _ _ = false
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(* theory term -> bool *)
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val has_weaselly_sorts =
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  exists_type o exists_subtype o is_tfree_with_weaselly_sort
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(* (unit -> string) -> Pretty.T *)
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fun plazy f = Pretty.blk (0, pstrs (f ()))
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(* Time.time -> Proof.state -> params -> bool -> term -> string * Proof.state *)
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fun pick_them_nits_in_term deadline state (params : params) auto orig_assm_ts
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                           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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    val {cards_assigns, maxes_assigns, iters_assigns, bisim_depths, boxes,
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         monos, wfs, sat_solver, blocking, falsify, debug, verbose, overlord,
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         user_axioms, assms, merge_type_vars, destroy_constrs, specialize,
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         skolemize, star_linear_preds, uncurry, fast_descrs, peephole_optim,
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         tac_timeout, sym_break, sharing_depth, flatten_props, max_threads,
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         show_skolems, show_datatypes, show_consts, evals, formats,
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         max_potential, max_genuine, check_potential, check_genuine, batch_size,
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         ...} =
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      params
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    val state_ref = Unsynchronized.ref state
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    (* Pretty.T -> unit *)
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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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        priority o Pretty.string_of
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    (* (unit -> Pretty.T) -> unit *)
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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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    (* string -> unit *)
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    val print = pprint o curry Pretty.blk 0 o pstrs
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    (* (unit -> string) -> unit *)
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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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    val print_d = pprint_d o K o plazy
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    (* unit -> unit *)
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    fun check_deadline () =
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      if debug andalso passed_deadline deadline then raise TimeLimit.TimeOut
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      else ()
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    (* unit -> 'a *)
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    fun do_interrupted () =
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      if passed_deadline deadline then raise TimeLimit.TimeOut
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      else raise Interrupt
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    val _ = print_m (K "Nitpicking...")
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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 assms_t = if assms orelse auto then
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                    Logic.mk_conjunction_list (neg_t :: orig_assm_ts)
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                  else
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                    neg_t
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    val (assms_t, evals) =
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      assms_t :: evals
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      |> merge_type_vars ? merge_type_vars_in_terms
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      |> hd pairf tl
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    val original_max_potential = max_potential
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    val original_max_genuine = max_genuine
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(*
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    val _ = priority ("*** " ^ Syntax.string_of_term ctxt orig_t)
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    val _ = List.app (fn t => priority ("*** " ^ Syntax.string_of_term ctxt t))
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                     orig_assm_ts
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*)
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    val max_bisim_depth = fold Integer.max bisim_depths ~1
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    val case_names = case_const_names thy
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    val (defs, built_in_nondefs, user_nondefs) = all_axioms_of thy
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    val def_table = const_def_table ctxt defs
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    val nondef_table = const_nondef_table (built_in_nondefs @ user_nondefs)
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    val simp_table = Unsynchronized.ref (const_simp_table ctxt)
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    val psimp_table = const_psimp_table ctxt
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    val intro_table = inductive_intro_table ctxt def_table
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    val ground_thm_table = ground_theorem_table thy
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    val ersatz_table = ersatz_table thy
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    val (ext_ctxt as {skolems, special_funs, wf_cache, ...}) =
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      {thy = thy, ctxt = ctxt, max_bisim_depth = max_bisim_depth, boxes = boxes,
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       user_axioms = user_axioms, debug = debug, wfs = wfs,
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       destroy_constrs = destroy_constrs, specialize = specialize,
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       skolemize = skolemize, star_linear_preds = star_linear_preds,
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       uncurry = uncurry, fast_descrs = fast_descrs, tac_timeout = tac_timeout,
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       evals = evals, case_names = case_names, def_table = def_table,
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       nondef_table = nondef_table, user_nondefs = user_nondefs,
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       simp_table = simp_table, psimp_table = psimp_table,
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       intro_table = intro_table, ground_thm_table = ground_thm_table,
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       ersatz_table = ersatz_table, skolems = Unsynchronized.ref [],
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       special_funs = Unsynchronized.ref [],
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       unrolled_preds = Unsynchronized.ref [], wf_cache = Unsynchronized.ref [],
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       constr_cache = Unsynchronized.ref []}
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    val frees = Term.add_frees assms_t []
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    val _ = null (Term.add_tvars assms_t [])
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            orelse raise NOT_SUPPORTED "schematic type variables"
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    val (((def_ts, nondef_ts), (got_all_mono_user_axioms, no_poly_user_axioms)),
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         core_t) = preprocess_term ext_ctxt assms_t
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    val got_all_user_axioms =
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      got_all_mono_user_axioms andalso no_poly_user_axioms
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    (* styp * (bool * bool) -> unit *)
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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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                   "\" was proved well-founded. Nitpick can compute it \
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                   \efficiently."
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                 else
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                   "\" could not be proved well-founded. Nitpick might need to \
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                   \unroll it.")))
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    val _ = if verbose then List.app print_wf (!wf_cache) else ()
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    val _ =
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      pprint_d (fn () =>
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          Pretty.chunks
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              (pretties_for_formulas ctxt "Preprocessed formula" [core_t] @
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               pretties_for_formulas ctxt "Relevant definitional axiom" def_ts @
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               pretties_for_formulas ctxt "Relevant nondefinitional axiom"
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   294
                                     nondef_ts))
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    val _ = List.app (ignore o Term.type_of) (core_t :: def_ts @ nondef_ts)
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   296
            handle TYPE (_, Ts, ts) =>
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                   raise TYPE ("Nitpick.pick_them_nits_in_term", Ts, ts)
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   299
    val core_u = nut_from_term thy fast_descrs (!special_funs) Eq core_t
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    val def_us = map (nut_from_term thy fast_descrs (!special_funs) DefEq)
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                     def_ts
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    val nondef_us = map (nut_from_term thy fast_descrs (!special_funs) Eq)
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                        nondef_ts
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   304
    val (free_names, const_names) =
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   305
      fold add_free_and_const_names (core_u :: def_us @ nondef_us) ([], [])
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   306
    val (sel_names, nonsel_names) =
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   307
      List.partition (is_sel o nickname_of) const_names
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   308
    val would_be_genuine = got_all_user_axioms andalso none_true wfs
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(*
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    val _ = List.app (priority o string_for_nut ctxt)
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                     (core_u :: def_us @ nondef_us)
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   312
*)
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    val unique_scope = forall (equal 1 o length o snd) cards_assigns
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   315
    (* typ -> bool *)
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   316
    fun is_free_type_monotonic T =
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   317
      unique_scope orelse
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   318
      case triple_lookup (type_match thy) monos T of
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   319
        SOME (SOME b) => b
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      | _ => formulas_monotonic ext_ctxt T def_ts nondef_ts core_t
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   321
    fun is_datatype_monotonic T =
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   322
      unique_scope orelse
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   323
      case triple_lookup (type_match thy) monos T of
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   324
        SOME (SOME b) => b
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   325
      | _ =>
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   326
        not (is_pure_typedef thy T) orelse is_univ_typedef thy T
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        orelse is_number_type thy T
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   328
        orelse formulas_monotonic ext_ctxt T def_ts nondef_ts core_t
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   329
    fun is_datatype_shallow T =
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   330
      not (exists (equal T o domain_type o type_of) sel_names)
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   331
    val Ts = ground_types_in_terms ext_ctxt (core_t :: def_ts @ nondef_ts)
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   332
             |> sort TermOrd.typ_ord
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   333
    val (all_dataTs, all_free_Ts) =
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   334
      List.partition (is_integer_type orf is_datatype thy) Ts
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   335
    val (mono_dataTs, nonmono_dataTs) =
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   336
      List.partition is_datatype_monotonic all_dataTs
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   337
    val (mono_free_Ts, nonmono_free_Ts) =
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   338
      List.partition is_free_type_monotonic all_free_Ts
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   339
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   340
    val _ =
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   341
      if not unique_scope andalso not (null mono_free_Ts) then
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   342
        print_v (fn () =>
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   343
                    let
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                      val ss = map (quote o string_for_type ctxt) mono_free_Ts
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   345
                    in
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   346
                      "The type" ^ plural_s_for_list ss ^ " " ^
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   347
                      space_implode " " (serial_commas "and" ss) ^ " " ^
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   348
                      (if none_true monos then
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   349
                         "passed the monotonicity test"
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   350
                       else
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   351
                         (if length ss = 1 then "is" else "are") ^
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   352
                         " considered monotonic") ^
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   353
                      ". Nitpick might be able to skip some scopes."
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   354
                    end)
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   355
      else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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   356
        ()
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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   357
    val mono_Ts = mono_dataTs @ mono_free_Ts
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   358
    val nonmono_Ts = nonmono_dataTs @ nonmono_free_Ts
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   359
    val shallow_dataTs = filter is_datatype_shallow mono_dataTs
33192
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   360
(*
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   361
    val _ = priority "Monotonic datatypes:"
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   362
    val _ = List.app (priority o string_for_type ctxt) mono_dataTs
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   363
    val _ = priority "Nonmonotonic datatypes:"
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   364
    val _ = List.app (priority o string_for_type ctxt) nonmono_dataTs
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   365
    val _ = priority "Monotonic free types:"
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   366
    val _ = List.app (priority o string_for_type ctxt) mono_free_Ts
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   367
    val _ = priority "Nonmonotonic free types:"
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   368
    val _ = List.app (priority o string_for_type ctxt) nonmono_free_Ts
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   369
*)
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   370
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   371
    val need_incremental = Int.max (max_potential, max_genuine) >= 2
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   372
    val effective_sat_solver =
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   373
      if sat_solver <> "smart" then
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   374
        if need_incremental andalso
33232
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   375
           not (sat_solver mem Kodkod_SAT.configured_sat_solvers true) then
33192
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   376
          (print_m (K ("An incremental SAT solver is required: \"SAT4J\" will \
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   377
                       \be used instead of " ^ quote sat_solver ^ "."));
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   378
           "SAT4J")
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   379
        else
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   380
          sat_solver
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   381
      else
33232
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   382
        Kodkod_SAT.smart_sat_solver_name need_incremental
33192
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   383
    val _ =
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   384
      if sat_solver = "smart" then
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   385
        print_v (fn () => "Using SAT solver " ^ quote effective_sat_solver ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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diff changeset
   386
                          ". The following" ^
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   387
                          (if need_incremental then " incremental " else " ") ^
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   388
                          "solvers are configured: " ^
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diff changeset
   389
                          commas (map quote (Kodkod_SAT.configured_sat_solvers
33192
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   390
                                                       need_incremental)) ^ ".")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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diff changeset
   391
      else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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diff changeset
   392
        ()
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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diff changeset
   393
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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   394
    val too_big_scopes = Unsynchronized.ref []
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diff changeset
   395
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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diff changeset
   396
    (* bool -> scope -> rich_problem option *)
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diff changeset
   397
    fun problem_for_scope liberal
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diff changeset
   398
            (scope as {card_assigns, bisim_depth, datatypes, ofs, ...}) =
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diff changeset
   399
      let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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diff changeset
   400
        val _ = not (exists (fn other => scope_less_eq other scope)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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diff changeset
   401
                            (!too_big_scopes))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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diff changeset
   402
                orelse raise LIMIT ("Nitpick.pick_them_nits_in_term.\
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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diff changeset
   403
                                    \problem_for_scope", "too big scope")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   404
(*
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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diff changeset
   405
        val _ = priority "Offsets:"
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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parents:
diff changeset
   406
        val _ = List.app (fn (T, j0) =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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diff changeset
   407
                             priority (string_for_type ctxt T ^ " = " ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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diff changeset
   408
                                       string_of_int j0))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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diff changeset
   409
                         (Typtab.dest ofs)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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parents:
diff changeset
   410
*)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   411
        val all_precise = forall (is_precise_type datatypes) Ts
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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   412
        (* nut list -> rep NameTable.table -> nut list * rep NameTable.table *)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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diff changeset
   413
        val repify_consts = choose_reps_for_consts scope all_precise
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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parents:
diff changeset
   414
        val main_j0 = offset_of_type ofs bool_T
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   415
        val (nat_card, nat_j0) = spec_of_type scope nat_T
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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diff changeset
   416
        val (int_card, int_j0) = spec_of_type scope int_T
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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diff changeset
   417
        val _ = forall (equal main_j0) [nat_j0, int_j0]
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
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parents:
diff changeset
   418
                orelse raise BAD ("Nitpick.pick_them_nits_in_term.\
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   419
                                  \problem_for_scope", "bad offsets")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   420
        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
   421
        val (free_names, rep_table) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   422
          choose_reps_for_free_vars scope free_names NameTable.empty
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   423
        val (sel_names, rep_table) = choose_reps_for_all_sels scope rep_table
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   424
        val (nonsel_names, rep_table) = repify_consts nonsel_names rep_table
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   425
        val min_highest_arity =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   426
          NameTable.fold (curry Int.max o arity_of_rep o snd) rep_table 1
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   427
        val min_univ_card =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   428
          NameTable.fold (curry Int.max o min_univ_card_of_rep o snd) rep_table
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   429
                         (univ_card nat_card int_card main_j0 [] Kodkod.True)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   430
        val _ = check_arity min_univ_card min_highest_arity
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   431
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   432
        val core_u = choose_reps_in_nut scope liberal rep_table false core_u
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   433
        val def_us = map (choose_reps_in_nut scope liberal rep_table true)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   434
                         def_us
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   435
        val nondef_us = map (choose_reps_in_nut scope liberal rep_table false)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   436
                            nondef_us
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   437
(*
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   438
        val _ = List.app (priority o string_for_nut ctxt)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   439
                         (free_names @ sel_names @ nonsel_names @
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   440
                          core_u :: def_us @ nondef_us)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   441
*)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   442
        val (free_rels, pool, rel_table) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   443
          rename_free_vars free_names initial_pool NameTable.empty
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   444
        val (sel_rels, pool, rel_table) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   445
          rename_free_vars sel_names pool rel_table
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   446
        val (other_rels, pool, rel_table) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   447
          rename_free_vars nonsel_names pool rel_table
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   448
        val core_u = rename_vars_in_nut pool rel_table core_u
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   449
        val def_us = map (rename_vars_in_nut pool rel_table) def_us
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   450
        val nondef_us = map (rename_vars_in_nut pool rel_table) nondef_us
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   451
        (* nut -> Kodkod.formula *)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   452
        val to_f = kodkod_formula_from_nut ofs liberal kk
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   453
        val core_f = to_f core_u
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   454
        val def_fs = map to_f def_us
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   455
        val nondef_fs = map to_f nondef_us
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   456
        val formula = fold (fold s_and) [def_fs, nondef_fs] core_f
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   457
        val comment = (if liberal then "liberal" else "conservative") ^ "\n" ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   458
                      PrintMode.setmp [] multiline_string_for_scope scope
33232
f93390060bbe internal renaming in Nitpick and fixed Kodkodi invokation on Linux;
blanchet
parents: 33192
diff changeset
   459
        val kodkod_sat_solver = Kodkod_SAT.sat_solver_spec effective_sat_solver
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   460
                                |> snd
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   461
        val delay = if liberal then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   462
                      Option.map (fn time => Time.- (time, Time.now ()))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   463
                                 deadline
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   464
                      |> liberal_delay_for_timeout
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   465
                    else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   466
                      0
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   467
        val settings = [("solver", commas (map quote kodkod_sat_solver)),
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   468
                        ("skolem_depth", "-1"),
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   469
                        ("bit_width", "16"),
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   470
                        ("symmetry_breaking", signed_string_of_int sym_break),
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   471
                        ("sharing", signed_string_of_int sharing_depth),
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   472
                        ("flatten", Bool.toString flatten_props),
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   473
                        ("delay", signed_string_of_int delay)]
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   474
        val plain_rels = free_rels @ other_rels
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   475
        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
   476
        val plain_axioms = map (declarative_axiom_for_plain_rel kk) plain_rels
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   477
        val sel_bounds = map (bound_for_sel_rel ctxt debug datatypes) sel_rels
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   478
        val dtype_axioms = declarative_axioms_for_datatypes ext_ctxt ofs kk
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   479
                                                            rel_table datatypes
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   480
        val declarative_axioms = plain_axioms @ dtype_axioms
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   481
        val univ_card = univ_card nat_card int_card main_j0
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   482
                                  (plain_bounds @ sel_bounds) formula
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   483
        val built_in_bounds = bounds_for_built_in_rels_in_formula debug
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   484
                                  univ_card nat_card int_card main_j0 formula
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   485
        val bounds = built_in_bounds @ plain_bounds @ sel_bounds
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   486
                     |> not debug ? merge_bounds
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   487
        val highest_arity =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   488
          fold Integer.max (map (fst o fst) (maps fst bounds)) 0
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   489
        val formula = fold_rev s_and declarative_axioms formula
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   490
        val _ = if formula = Kodkod.False then ()
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   491
                else check_arity univ_card highest_arity
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   492
      in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   493
        SOME ({comment = comment, settings = settings, univ_card = univ_card,
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   494
               tuple_assigns = [], bounds = bounds,
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   495
               int_bounds = sequential_int_bounds univ_card,
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   496
               expr_assigns = [], formula = formula},
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   497
              {free_names = free_names, sel_names = sel_names,
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   498
               nonsel_names = nonsel_names, rel_table = rel_table,
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   499
               liberal = liberal, scope = scope, core = core_f,
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   500
               defs = nondef_fs @ def_fs @ declarative_axioms})
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   501
      end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   502
      handle LIMIT (loc, msg) =>
33232
f93390060bbe internal renaming in Nitpick and fixed Kodkodi invokation on Linux;
blanchet
parents: 33192
diff changeset
   503
             if loc = "Nitpick_Kodkod.check_arity"
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   504
                andalso not (Typtab.is_empty ofs) then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   505
               problem_for_scope liberal
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   506
                   {ext_ctxt = ext_ctxt, card_assigns = card_assigns,
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   507
                    bisim_depth = bisim_depth, datatypes = datatypes,
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   508
                    ofs = Typtab.empty}
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   509
             else if loc = "Nitpick.pick_them_nits_in_term.\
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   510
                           \problem_for_scope" then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   511
               NONE
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   512
             else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   513
               (Unsynchronized.change too_big_scopes (cons scope);
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   514
                print_v (fn () => ("Limit reached: " ^ msg ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   515
                                   ". Dropping " ^ (if liberal then "potential"
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   516
                                                    else "genuine") ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   517
                                   " component of scope."));
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   518
                NONE)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   519
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   520
    (* int -> (''a * int list list) list -> ''a -> Kodkod.tuple_set *)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   521
    fun tuple_set_for_rel univ_card =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   522
      Kodkod.TupleSet o map (kk_tuple debug univ_card) o the
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   523
      oo AList.lookup (op =)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   524
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   525
    val word_model = if falsify then "counterexample" else "model"
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   526
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   527
    val scopes = Unsynchronized.ref []
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   528
    val generated_scopes = Unsynchronized.ref []
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   529
    val generated_problems = Unsynchronized.ref []
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   530
    val checked_problems = Unsynchronized.ref (SOME [])
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   531
    val met_potential = Unsynchronized.ref 0
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   532
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   533
    (* rich_problem list -> int list -> unit *)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   534
    fun update_checked_problems problems =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   535
      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
   536
                o nth problems)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   537
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   538
    (* bool -> Kodkod.raw_bound list -> problem_extension -> bool option *)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   539
    fun print_and_check_model genuine bounds
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   540
            ({free_names, sel_names, nonsel_names, rel_table, scope, ...}
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   541
             : problem_extension) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   542
      let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   543
        val (reconstructed_model, codatatypes_ok) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   544
          reconstruct_hol_model {show_skolems = show_skolems,
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   545
                                 show_datatypes = show_datatypes,
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   546
                                 show_consts = show_consts}
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   547
              scope formats frees free_names sel_names nonsel_names rel_table
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   548
              bounds
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   549
        val would_be_genuine = would_be_genuine andalso codatatypes_ok
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   550
      in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   551
        pprint (Pretty.chunks
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   552
            [Pretty.blk (0,
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   553
                 (pstrs ("Nitpick found a" ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   554
                         (if not genuine then " potential "
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   555
                          else if would_be_genuine then " "
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   556
                          else " likely genuine ") ^ word_model) @
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   557
                  (case pretties_for_scope scope verbose of
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   558
                     [] => []
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   559
                   | pretties => pstrs " for " @ pretties) @
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   560
                  [Pretty.str ":\n"])),
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   561
             Pretty.indent indent_size reconstructed_model]);
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   562
        if genuine then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   563
          (if check_genuine then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   564
             (case prove_hol_model scope tac_timeout free_names sel_names
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   565
                                   rel_table bounds assms_t of
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   566
                SOME true => print ("Confirmation by \"auto\": The above " ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   567
                                    word_model ^ " is really genuine.")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   568
              | SOME false =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   569
                if would_be_genuine then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   570
                  error ("A supposedly genuine " ^ word_model ^ " was shown to\
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   571
                         \be spurious by \"auto\".\nThis should never happen.\n\
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   572
                         \Please send a bug report to blanchet\
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   573
                         \te@in.tum.de.")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   574
                else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   575
                  print ("Refutation by \"auto\": The above " ^ word_model ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   576
                         " is spurious.")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   577
              | NONE => print "No confirmation by \"auto\".")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   578
           else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   579
             ();
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   580
           if has_weaselly_sorts thy orig_t then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   581
             print "Hint: Maybe you forgot a type constraint?"
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   582
           else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   583
             ();
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   584
           if not would_be_genuine then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   585
             if no_poly_user_axioms then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   586
               let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   587
                 val options =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   588
                   [] |> not got_all_mono_user_axioms
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   589
                         ? cons ("user_axioms", "\"true\"")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   590
                      |> not (none_true wfs)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   591
                         ? cons ("wf", "\"smart\" or \"false\"")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   592
                      |> not codatatypes_ok
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   593
                         ? cons ("bisim_depth", "a nonnegative value")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   594
                 val ss =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   595
                   map (fn (name, value) => quote name ^ " set to " ^ value)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   596
                       options
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   597
               in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   598
                 print ("Try again with " ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   599
                        space_implode " " (serial_commas "and" ss) ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   600
                        " to confirm that the " ^ word_model ^ " is genuine.")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   601
               end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   602
             else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   603
               print ("Nitpick is unable to guarantee the authenticity of \
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   604
                      \the " ^ word_model ^ " in the presence of polymorphic \
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   605
                      \axioms.")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   606
           else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   607
             ();
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   608
           NONE)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   609
        else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   610
          if not genuine then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   611
            (Unsynchronized.inc met_potential;
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   612
             if check_potential then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   613
               let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   614
                 val status = prove_hol_model scope tac_timeout free_names
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   615
                                              sel_names rel_table bounds assms_t
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   616
               in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   617
                 (case status of
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   618
                    SOME true => print ("Confirmation by \"auto\": The above " ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   619
                                        word_model ^ " is genuine.")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   620
                  | SOME false => print ("Refutation by \"auto\": The above " ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   621
                                         word_model ^ " is spurious.")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   622
                  | NONE => print "No confirmation by \"auto\".");
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   623
                 status
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   624
               end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   625
             else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   626
               NONE)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   627
          else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   628
            NONE
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   629
      end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   630
    (* int -> int -> int -> bool -> rich_problem list -> int * int * int *)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   631
    fun solve_any_problem max_potential max_genuine donno first_time problems =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   632
      let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   633
        val max_potential = Int.max (0, max_potential)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   634
        val max_genuine = Int.max (0, max_genuine)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   635
        (* bool -> int * Kodkod.raw_bound list -> bool option *)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   636
        fun print_and_check genuine (j, bounds) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   637
          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
   638
        val max_solutions = max_potential + max_genuine
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   639
                            |> not need_incremental ? curry Int.min 1
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   640
      in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   641
        if max_solutions <= 0 then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   642
          (0, 0, donno)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   643
        else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   644
          case Kodkod.solve_any_problem overlord deadline max_threads
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   645
                                        max_solutions (map fst problems) of
33233
f9ff11344ec4 added friendly error message when Kodkodi is not available
blanchet
parents: 33232
diff changeset
   646
            Kodkod.NotInstalled =>
33568
532b915afa14 don't run Nitpick at all if Kodkodi is not installed (as indicated by the $KODKODI variable)
blanchet
parents: 33566
diff changeset
   647
            (print_m install_kodkodi_message;
33233
f9ff11344ec4 added friendly error message when Kodkodi is not available
blanchet
parents: 33232
diff changeset
   648
             (max_potential, max_genuine, donno + 1))
f9ff11344ec4 added friendly error message when Kodkodi is not available
blanchet
parents: 33232
diff changeset
   649
          | Kodkod.Normal ([], unsat_js) =>
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   650
            (update_checked_problems problems unsat_js;
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   651
             (max_potential, max_genuine, donno))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   652
          | Kodkod.Normal (sat_ps, unsat_js) =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   653
            let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   654
              val (lib_ps, con_ps) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   655
                List.partition (#liberal o snd o nth problems o fst) sat_ps
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   656
            in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   657
              update_checked_problems problems (unsat_js @ map fst lib_ps);
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   658
              if null con_ps then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   659
                let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   660
                  val num_genuine = Library.take (max_potential, lib_ps)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   661
                                    |> map (print_and_check false)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   662
                                    |> filter (equal (SOME true)) |> length
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   663
                  val max_genuine = max_genuine - num_genuine
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   664
                  val max_potential = max_potential
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   665
                                      - (length lib_ps - num_genuine)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   666
                in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   667
                  if max_genuine <= 0 then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   668
                    (0, 0, donno)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   669
                  else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   670
                    let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   671
                      (* "co_js" is the list of conservative problems whose
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   672
                         liberal pendants couldn't be satisfied and hence that
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   673
                         most probably can't be satisfied themselves. *)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   674
                      val co_js =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   675
                        map (fn j => j - 1) unsat_js
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   676
                        |> filter (fn j =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   677
                                      j >= 0 andalso
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   678
                                      scopes_equivalent
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   679
                                          (#scope (snd (nth problems j)))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   680
                                          (#scope (snd (nth problems (j + 1)))))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   681
                      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
   682
                                                          unsat_js @ co_js)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   683
                      val problems =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   684
                        problems |> filter_out_indices bye_js
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   685
                                 |> max_potential <= 0
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   686
                                    ? filter_out (#liberal o snd)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   687
                    in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   688
                      solve_any_problem max_potential max_genuine donno false
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   689
                                        problems
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   690
                    end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   691
                end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   692
              else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   693
                let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   694
                  val _ = Library.take (max_genuine, con_ps)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   695
                          |> List.app (ignore o print_and_check true)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   696
                  val max_genuine = max_genuine - length con_ps
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   697
                in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   698
                  if max_genuine <= 0 orelse not first_time then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   699
                    (0, max_genuine, donno)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   700
                  else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   701
                    let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   702
                      val bye_js = sort_distinct int_ord
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   703
                                                 (map fst sat_ps @ unsat_js)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   704
                      val problems =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   705
                        problems |> filter_out_indices bye_js
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   706
                                 |> filter_out (#liberal o snd)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   707
                    in solve_any_problem 0 max_genuine donno false problems end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   708
                end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   709
            end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   710
          | Kodkod.TimedOut unsat_js =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   711
            (update_checked_problems problems unsat_js; raise TimeLimit.TimeOut)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   712
          | Kodkod.Interrupted NONE =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   713
            (checked_problems := NONE; do_interrupted ())
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   714
          | Kodkod.Interrupted (SOME unsat_js) =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   715
            (update_checked_problems problems unsat_js; do_interrupted ())
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   716
          | Kodkod.Error (s, unsat_js) =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   717
            (update_checked_problems problems unsat_js;
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   718
             print_v (K ("Kodkod error: " ^ s ^ "."));
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   719
             (max_potential, max_genuine, donno + 1))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   720
      end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   721
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   722
    (* int -> int -> scope list -> int * int * int -> int * int * int *)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   723
    fun run_batch j n scopes (max_potential, max_genuine, donno) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   724
      let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   725
        val _ =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   726
          if null scopes then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   727
            print_m (K "The scope specification is inconsistent.")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   728
          else if verbose then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   729
            pprint (Pretty.chunks
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   730
                [Pretty.blk (0,
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   731
                     pstrs ((if n > 1 then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   732
                               "Batch " ^ string_of_int (j + 1) ^ " of " ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   733
                               signed_string_of_int n ^ ": "
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   734
                             else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   735
                               "") ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   736
                            "Trying " ^ string_of_int (length scopes) ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   737
                            " scope" ^ plural_s_for_list scopes ^ ":")),
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   738
                 Pretty.indent indent_size
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   739
                     (Pretty.chunks (map2
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   740
                          (fn j => fn scope =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   741
                              Pretty.block (
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   742
                                  (case pretties_for_scope scope true of
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   743
                                     [] => [Pretty.str "Empty"]
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   744
                                   | pretties => pretties) @
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   745
                                  [Pretty.str (if j = 1 then "." else ";")]))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   746
                          (length scopes downto 1) scopes))])
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   747
          else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   748
            ()
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   749
        (* scope * bool -> rich_problem list * bool
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   750
           -> rich_problem list * bool *)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   751
        fun add_problem_for_scope (scope as {datatypes, ...}, liberal)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   752
                                  (problems, donno) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   753
          (check_deadline ();
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   754
           case problem_for_scope liberal scope of
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   755
             SOME problem =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   756
             (problems
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   757
              |> (null problems orelse
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   758
                  not (Kodkod.problems_equivalent (fst problem)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   759
                                                  (fst (hd problems))))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   760
                  ? cons problem, donno)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   761
           | NONE => (problems, donno + 1))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   762
        val (problems, donno) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   763
          fold add_problem_for_scope
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   764
               (map_product pair scopes
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   765
                    ((if max_genuine > 0 then [false] else []) @
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   766
                     (if max_potential > 0 then [true] else [])))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   767
               ([], donno)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   768
        val _ = Unsynchronized.change generated_problems (append problems)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   769
        val _ = Unsynchronized.change generated_scopes (append scopes)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   770
      in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   771
        solve_any_problem max_potential max_genuine donno true (rev problems)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   772
      end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   773
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   774
    (* rich_problem list -> scope -> int *)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   775
    fun scope_count (problems : rich_problem list) scope =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   776
      length (filter (scopes_equivalent scope o #scope o snd) problems)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   777
    (* string -> string *)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   778
    fun excipit did_so_and_so =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   779
      let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   780
        (* rich_problem list -> rich_problem list *)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   781
        val do_filter =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   782
          if !met_potential = max_potential then filter_out (#liberal o snd)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   783
          else I
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   784
        val total = length (!scopes)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   785
        val unsat =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   786
          fold (fn scope =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   787
                   case scope_count (do_filter (!generated_problems)) scope of
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   788
                     0 => I
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   789
                   | 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
   790
                     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
   791
                                 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
   792
                     ? Integer.add 1) (!generated_scopes) 0
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   793
      in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   794
        "Nitpick " ^ did_so_and_so ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   795
        (if is_some (!checked_problems) andalso total > 0 then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   796
           " after checking " ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   797
           string_of_int (Int.min (total - 1, unsat)) ^ " of " ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   798
           string_of_int total ^ " scope" ^ plural_s total
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   799
         else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   800
           "") ^ "."
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   801
      end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   802
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   803
    (* int -> int -> scope list -> int * int * int -> Kodkod.outcome *)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   804
    fun run_batches _ _ [] (max_potential, max_genuine, donno) =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   805
        if donno > 0 andalso max_genuine > 0 then
33233
f9ff11344ec4 added friendly error message when Kodkodi is not available
blanchet
parents: 33232
diff changeset
   806
          (print_m (fn () => excipit "ran into difficulties"); "unknown")
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   807
        else if max_genuine = original_max_genuine then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   808
          if max_potential = original_max_potential then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   809
            (print_m (K ("Nitpick found no " ^ word_model ^ ".")); "none")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   810
          else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   811
            (print_m (K ("Nitpick could not find " ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   812
                         (if max_genuine = 1 then "a better " ^ word_model ^ "."
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   813
                          else "any better " ^ word_model ^ "s.")));
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   814
             "potential")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   815
        else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   816
          if would_be_genuine then "genuine" else "likely_genuine"
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   817
      | run_batches j n (batch :: batches) z =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   818
        let val (z as (_, max_genuine, _)) = run_batch j n batch z in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   819
          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
   820
        end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   821
33580
45c33e97cb86 added datatype constructor cache in Nitpick (to speed up the scope enumeration) and never test more than 4096 scopes
blanchet
parents: 33568
diff changeset
   822
    val (skipped, the_scopes) =
45c33e97cb86 added datatype constructor cache in Nitpick (to speed up the scope enumeration) and never test more than 4096 scopes
blanchet
parents: 33568
diff changeset
   823
      all_scopes ext_ctxt sym_break cards_assigns maxes_assigns iters_assigns
45c33e97cb86 added datatype constructor cache in Nitpick (to speed up the scope enumeration) and never test more than 4096 scopes
blanchet
parents: 33568
diff changeset
   824
                 bisim_depths mono_Ts nonmono_Ts shallow_dataTs
45c33e97cb86 added datatype constructor cache in Nitpick (to speed up the scope enumeration) and never test more than 4096 scopes
blanchet
parents: 33568
diff changeset
   825
    val _ = if skipped > 0 then
45c33e97cb86 added datatype constructor cache in Nitpick (to speed up the scope enumeration) and never test more than 4096 scopes
blanchet
parents: 33568
diff changeset
   826
              print_m (fn () => "Too many scopes. Dropping " ^
45c33e97cb86 added datatype constructor cache in Nitpick (to speed up the scope enumeration) and never test more than 4096 scopes
blanchet
parents: 33568
diff changeset
   827
                                string_of_int skipped ^ " scope" ^
45c33e97cb86 added datatype constructor cache in Nitpick (to speed up the scope enumeration) and never test more than 4096 scopes
blanchet
parents: 33568
diff changeset
   828
                                plural_s skipped ^
45c33e97cb86 added datatype constructor cache in Nitpick (to speed up the scope enumeration) and never test more than 4096 scopes
blanchet
parents: 33568
diff changeset
   829
                                ". (Consider using \"mono\" or \
45c33e97cb86 added datatype constructor cache in Nitpick (to speed up the scope enumeration) and never test more than 4096 scopes
blanchet
parents: 33568
diff changeset
   830
                                \\"merge_type_vars\" to prevent this.)")
45c33e97cb86 added datatype constructor cache in Nitpick (to speed up the scope enumeration) and never test more than 4096 scopes
blanchet
parents: 33568
diff changeset
   831
            else
45c33e97cb86 added datatype constructor cache in Nitpick (to speed up the scope enumeration) and never test more than 4096 scopes
blanchet
parents: 33568
diff changeset
   832
              ()
45c33e97cb86 added datatype constructor cache in Nitpick (to speed up the scope enumeration) and never test more than 4096 scopes
blanchet
parents: 33568
diff changeset
   833
    val _ = scopes := the_scopes
45c33e97cb86 added datatype constructor cache in Nitpick (to speed up the scope enumeration) and never test more than 4096 scopes
blanchet
parents: 33568
diff changeset
   834
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   835
    val batches = batch_list batch_size (!scopes)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   836
    val outcome_code =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   837
      (run_batches 0 (length batches) batches (max_potential, max_genuine, 0)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   838
       handle Exn.Interrupt => do_interrupted ())
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   839
      handle TimeLimit.TimeOut =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   840
             (print_m (fn () => excipit "ran out of time");
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   841
              if !met_potential > 0 then "potential" else "unknown")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   842
           | Exn.Interrupt => if auto orelse debug then raise Interrupt
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   843
                              else error (excipit "was interrupted")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   844
    val _ = print_v (fn () => "Total time: " ^
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   845
                              signed_string_of_int (Time.toMilliseconds
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   846
                                    (Timer.checkRealTimer timer)) ^ " ms.")
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   847
  in (outcome_code, !state_ref) end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   848
  handle Exn.Interrupt =>
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   849
         if auto orelse #debug params then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   850
           raise Interrupt
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   851
         else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   852
           if passed_deadline deadline then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   853
             (priority "Nitpick ran out of time."; ("unknown", state))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   854
           else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   855
             error "Nitpick was interrupted."
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   856
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   857
(* Proof.state -> params -> bool -> term -> string * Proof.state *)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   858
fun pick_nits_in_term state (params as {debug, timeout, expect, ...})
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   859
                      auto orig_assm_ts orig_t =
33568
532b915afa14 don't run Nitpick at all if Kodkodi is not installed (as indicated by the $KODKODI variable)
blanchet
parents: 33566
diff changeset
   860
  if getenv "KODKODI" = "" then
532b915afa14 don't run Nitpick at all if Kodkodi is not installed (as indicated by the $KODKODI variable)
blanchet
parents: 33566
diff changeset
   861
    (if auto then ()
532b915afa14 don't run Nitpick at all if Kodkodi is not installed (as indicated by the $KODKODI variable)
blanchet
parents: 33566
diff changeset
   862
     else warning (Pretty.string_of (plazy install_kodkodi_message));
532b915afa14 don't run Nitpick at all if Kodkodi is not installed (as indicated by the $KODKODI variable)
blanchet
parents: 33566
diff changeset
   863
     ("unknown", state))
532b915afa14 don't run Nitpick at all if Kodkodi is not installed (as indicated by the $KODKODI variable)
blanchet
parents: 33566
diff changeset
   864
  else
532b915afa14 don't run Nitpick at all if Kodkodi is not installed (as indicated by the $KODKODI variable)
blanchet
parents: 33566
diff changeset
   865
    let
532b915afa14 don't run Nitpick at all if Kodkodi is not installed (as indicated by the $KODKODI variable)
blanchet
parents: 33566
diff changeset
   866
      val deadline = Option.map (curry Time.+ (Time.now ())) timeout
532b915afa14 don't run Nitpick at all if Kodkodi is not installed (as indicated by the $KODKODI variable)
blanchet
parents: 33566
diff changeset
   867
      val outcome as (outcome_code, _) =
532b915afa14 don't run Nitpick at all if Kodkodi is not installed (as indicated by the $KODKODI variable)
blanchet
parents: 33566
diff changeset
   868
        time_limit (if debug then NONE else timeout)
532b915afa14 don't run Nitpick at all if Kodkodi is not installed (as indicated by the $KODKODI variable)
blanchet
parents: 33566
diff changeset
   869
            (pick_them_nits_in_term deadline state params auto orig_assm_ts)
532b915afa14 don't run Nitpick at all if Kodkodi is not installed (as indicated by the $KODKODI variable)
blanchet
parents: 33566
diff changeset
   870
            orig_t
532b915afa14 don't run Nitpick at all if Kodkodi is not installed (as indicated by the $KODKODI variable)
blanchet
parents: 33566
diff changeset
   871
    in
532b915afa14 don't run Nitpick at all if Kodkodi is not installed (as indicated by the $KODKODI variable)
blanchet
parents: 33566
diff changeset
   872
      if expect = "" orelse outcome_code = expect then outcome
532b915afa14 don't run Nitpick at all if Kodkodi is not installed (as indicated by the $KODKODI variable)
blanchet
parents: 33566
diff changeset
   873
      else error ("Unexpected outcome: " ^ quote outcome_code ^ ".")
532b915afa14 don't run Nitpick at all if Kodkodi is not installed (as indicated by the $KODKODI variable)
blanchet
parents: 33566
diff changeset
   874
    end
33192
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   875
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   876
(* Proof.state -> params -> thm -> int -> string * Proof.state *)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   877
fun pick_nits_in_subgoal state params auto subgoal =
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   878
  let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   879
    val ctxt = Proof.context_of state
33292
affe60b3d864 renamed raw Proof.get_goal to Proof.raw_goal;
wenzelm
parents: 33233
diff changeset
   880
    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
   881
  in
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   882
    if Logic.count_prems t = 0 then
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   883
      (priority "No subgoal!"; ("none", state))
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   884
    else
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   885
      let
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   886
        val assms = map term_of (Assumption.all_assms_of ctxt)
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   887
        val (t, frees) = Logic.goal_params t subgoal
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   888
      in pick_nits_in_term state params auto assms (subst_bounds (frees, t)) end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   889
  end
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   890
08a39a957ed7 added Nitpick's theory and ML files to Isabelle/HOL;
blanchet
parents:
diff changeset
   891
end;