src/HOL/Tools/ATP_Manager/atp_systems.ML
author blanchet
Mon Jul 26 17:03:21 2010 +0200 (2010-07-26)
changeset 37995 06f02b15ef8a
parent 37994 b04307085a09
child 37996 11c076ea92e9
permissions -rw-r--r--
generate full first-order formulas (FOF) in Sledgehammer
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(*  Title:      HOL/Tools/ATP_Manager/atp_systems.ML
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    Author:     Fabian Immler, TU Muenchen
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    Author:     Jasmin Blanchette, TU Muenchen
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Setup for supported ATPs.
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*)
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signature ATP_SYSTEMS =
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sig
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  val trace : bool Unsynchronized.ref
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  val dest_dir : string Config.T
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  val problem_prefix : string Config.T
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  val measure_runtime : bool Config.T
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  val refresh_systems_on_tptp : unit -> unit
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  val default_atps_param_value : unit -> string
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  val setup : theory -> theory
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end;
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structure ATP_Systems : ATP_SYSTEMS =
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struct
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open Metis_Clauses
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open Sledgehammer_Util
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open Sledgehammer_Fact_Filter
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open Sledgehammer_TPTP_Format
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open Sledgehammer_Proof_Reconstruct
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open ATP_Manager
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val trace = Unsynchronized.ref false
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fun trace_msg msg = if !trace then tracing (msg ()) else ()
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(** generic ATP **)
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(* external problem files *)
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val (dest_dir, dest_dir_setup) = Attrib.config_string "atp_dest_dir" (K "");
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  (*Empty string means create files in Isabelle's temporary files directory.*)
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val (problem_prefix, problem_prefix_setup) =
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  Attrib.config_string "atp_problem_prefix" (K "prob");
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val (measure_runtime, measure_runtime_setup) =
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  Attrib.config_bool "atp_measure_runtime" (K false);
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(* prover configuration *)
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type prover_config =
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  {home_var: string,
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   executable: string,
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   arguments: bool -> Time.time -> string,
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   proof_delims: (string * string) list,
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   known_failures: (failure * string) list,
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   max_axiom_clauses: int,
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   prefers_theory_relevant: bool,
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   explicit_forall: bool}
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(* basic template *)
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val remotify = prefix "remote_"
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fun with_path cleanup after f path =
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  Exn.capture f path
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  |> tap (fn _ => cleanup path)
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  |> Exn.release
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  |> tap (after path)
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(* Splits by the first possible of a list of delimiters. *)
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fun extract_proof delims output =
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  case pairself (find_first (fn s => String.isSubstring s output))
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                (ListPair.unzip delims) of
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    (SOME begin_delim, SOME end_delim) =>
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    (output |> first_field begin_delim |> the |> snd
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            |> first_field end_delim |> the |> fst
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            |> first_field "\n" |> the |> snd
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     handle Option.Option => "")
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  | _ => ""
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fun extract_proof_and_outcome complete res_code proof_delims known_failures
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                              output =
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  case map_filter (fn (failure, pattern) =>
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                      if String.isSubstring pattern output then SOME failure
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                      else NONE) known_failures of
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    [] => (case extract_proof proof_delims output of
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             "" => ("", SOME UnknownError)
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           | proof => if res_code = 0 then (proof, NONE)
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                      else ("", SOME UnknownError))
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  | (failure :: _) =>
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    ("", SOME (if failure = IncompleteUnprovable andalso complete then
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                 Unprovable
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               else
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                 failure))
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fun string_for_failure Unprovable = "The ATP problem is unprovable."
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  | string_for_failure IncompleteUnprovable =
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    "The ATP cannot prove the problem."
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  | string_for_failure CantConnect = "Can't connect to remote ATP."
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  | string_for_failure TimedOut = "Timed out."
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  | string_for_failure OutOfResources = "The ATP ran out of resources."
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  | string_for_failure OldSpass =
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    (* FIXME: Change the error message below to point to the Isabelle download
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       page once the package is there (around the Isabelle2010 release). *)
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    "Warning: Sledgehammer requires a more recent version of SPASS with \
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    \support for the TPTP syntax. To install it, download and untar the \
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    \package \"http://isabelle.in.tum.de/~blanchet/spass-3.7.tgz\" and add the \
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    \\"spass-3.7\" 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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    "\" on a line of its own."
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  | string_for_failure MalformedInput =
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    "Internal Sledgehammer error: The ATP problem is malformed. Please report \
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    \this to the Isabelle developers."
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  | string_for_failure MalformedOutput = "Error: The ATP output is malformed."
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  | string_for_failure UnknownError = "Error: An unknown ATP error occurred."
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(* Clause preparation *)
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fun make_clause_table xs =
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  fold (Termtab.update o `(prop_of o snd)) xs Termtab.empty
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(* Remove existing axiom clauses from the conjecture clauses, as this can
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   dramatically boost an ATP's performance (for some reason). *)
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fun subtract_cls ax_clauses =
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  filter_out (Termtab.defined (make_clause_table ax_clauses) o prop_of)
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fun combformula_for_prop thy =
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  let
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    val do_term = combterm_from_term thy
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    fun do_quant bs q s T t' =
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      do_formula ((s, T) :: bs) t'
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      #>> (fn phi => AQuant (q, [`make_bound_var s], phi))
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    and do_conn bs c t1 t2 =
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      do_formula bs t1 ##>> do_formula bs t2
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      #>> (fn (phi1, phi2) => AConn (c, [phi1, phi2]))
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    and do_formula bs t =
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      case t of
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        @{const Trueprop} $ t1 => do_formula bs t1
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      | @{const Not} $ t1 =>
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        do_formula bs t1 #>> (fn phi => AConn (ANot, [phi]))
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      | Const (@{const_name All}, _) $ Abs (s, T, t') =>
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        do_quant bs AForall s T t'
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      | Const (@{const_name Ex}, _) $ Abs (s, T, t') =>
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        do_quant bs AExists s T t'
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      | @{const "op &"} $ t1 $ t2 => do_conn bs AAnd t1 t2
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      | @{const "op |"} $ t1 $ t2 => do_conn bs AOr t1 t2
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      | @{const "op -->"} $ t1 $ t2 => do_conn bs AImplies t1 t2
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      | Const (@{const_name "op ="}, Type (_, [@{typ bool}, _])) $ t1 $ t2 =>
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        do_conn bs AIff t1 t2
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      | _ => (fn ts => do_term bs (Envir.eta_contract t)
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                       |>> APred ||> union (op =) ts)
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  in do_formula [] end
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(* making axiom and conjecture clauses *)
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fun make_clause thy (formula_id, formula_name, kind, t) skolems =
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  let
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    (* ### FIXME: introduce combinators and perform other transformations
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       previously done by Clausifier.to_nnf *)
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    val (skolems, t) =
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      t |> Object_Logic.atomize_term thy
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        |> conceal_skolem_terms formula_id skolems
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    val (combformula, ctypes_sorts) = combformula_for_prop thy t []
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  in
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    (skolems,
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     FOLFormula {formula_name = formula_name, formula_id = formula_id,
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                 combformula = combformula, kind = kind,
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                 ctypes_sorts = ctypes_sorts})
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  end
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fun add_axiom_clause thy ((name, k), th) (skolems, clss) =
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  let
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    val (skolems, cls) = make_clause thy (k, name, Axiom, prop_of th) skolems
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  in (skolems, (name, cls) :: clss) end
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fun make_axiom_clauses thy clauses =
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  ([], []) |> fold_rev (add_axiom_clause thy) clauses |> snd
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fun make_conjecture_clauses thy =
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  let
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    fun aux _ _ [] = []
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      | aux n skolems (t :: ts) =
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        let
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          val (skolems, cls) =
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            make_clause thy (n, "conjecture", Conjecture, t) skolems
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        in cls :: aux (n + 1) skolems ts end
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  in aux 0 [] end
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(** Helper clauses **)
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fun count_combterm (CombConst ((s, _), _, _)) =
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    Symtab.map_entry s (Integer.add 1)
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  | count_combterm (CombVar _) = I
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  | count_combterm (CombApp (t1, t2)) = fold count_combterm [t1, t2]
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fun count_combformula (AQuant (_, _, phi)) = count_combformula phi
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  | count_combformula (AConn (_, phis)) = fold count_combformula phis
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  | count_combformula (APred tm) = count_combterm tm
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fun count_fol_formula (FOLFormula {combformula, ...}) =
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  count_combformula combformula
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fun cnf_helper_thms thy raw =
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  map (`Thm.get_name_hint)
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  #> (if raw then map (apfst (rpair 0)) else Clausifier.cnf_rules_pairs thy true)
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val optional_helpers =
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  [(["c_COMBI", "c_COMBK"], (false, @{thms COMBI_def COMBK_def})),
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   (["c_COMBB", "c_COMBC"], (false, @{thms COMBB_def COMBC_def})),
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   (["c_COMBS"], (false, @{thms COMBS_def}))]
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val optional_typed_helpers =
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  [(["c_True", "c_False"], (true, @{thms True_or_False})),
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   (["c_If"], (true, @{thms if_True if_False True_or_False}))]
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val mandatory_helpers = @{thms fequal_imp_equal equal_imp_fequal}
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val init_counters =
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  Symtab.make (maps (maps (map (rpair 0) o fst))
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                    [optional_helpers, optional_typed_helpers])
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fun get_helper_clauses thy is_FO full_types conjectures axcls =
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  let
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    val axclauses = map snd (make_axiom_clauses thy axcls)
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    val ct = fold (fold count_fol_formula) [conjectures, axclauses]
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                  init_counters
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    fun is_needed c = the (Symtab.lookup ct c) > 0
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    val cnfs =
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      (optional_helpers
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       |> full_types ? append optional_typed_helpers
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       |> maps (fn (ss, (raw, ths)) =>
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                   if exists is_needed ss then cnf_helper_thms thy raw ths
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                   else []))
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      @ (if is_FO then [] else cnf_helper_thms thy false mandatory_helpers)
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  in map snd (make_axiom_clauses thy cnfs) end
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fun negate_prop (@{const Trueprop} $ t) = negate_prop t
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  | negate_prop (@{const Not} $ t) = t
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  | negate_prop t = @{const Not} $ t
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(* prepare for passing to writer,
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   create additional clauses based on the information from extra_cls *)
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fun prepare_clauses full_types hyp_ts concl_t axcls extra_cls thy =
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  let
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    val goal_t = Logic.list_implies (hyp_ts, concl_t)
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    val is_FO = Meson.is_fol_term thy goal_t
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    val _ = trace_msg (fn _ => Syntax.string_of_term_global thy goal_t)
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    val axtms = map (prop_of o snd) extra_cls
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    val subs = tfree_classes_of_terms [goal_t]
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    val supers = tvar_classes_of_terms axtms
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    val tycons = type_consts_of_terms thy (goal_t :: axtms)
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    (*TFrees in conjecture clauses; TVars in axiom clauses*)
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    val conjectures =
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      make_conjecture_clauses thy (map negate_prop hyp_ts @ [concl_t])
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    val (_, extra_clauses) = ListPair.unzip (make_axiom_clauses thy extra_cls)
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    val (clnames, axiom_clauses) = ListPair.unzip (make_axiom_clauses thy axcls)
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    val helper_clauses =
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      get_helper_clauses thy is_FO full_types conjectures extra_cls
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    val (supers', arity_clauses) = make_arity_clauses thy tycons supers
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    val class_rel_clauses = make_class_rel_clauses thy subs supers'
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  in
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    (Vector.fromList clnames,
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      (conjectures, axiom_clauses, extra_clauses, helper_clauses,
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       class_rel_clauses, arity_clauses))
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  end
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fun extract_clause_sequence output =
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  let
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    val tokens_of = String.tokens (not o Char.isAlphaNum)
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    fun extract_num ("clause" :: (ss as _ :: _)) =
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    Int.fromString (List.last ss)
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      | extract_num _ = NONE
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  in output |> split_lines |> map_filter (extract_num o tokens_of) end
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val set_ClauseFormulaRelationN = "set_ClauseFormulaRelation"
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val parse_clause_formula_pair =
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  $$ "(" |-- scan_integer --| $$ "," -- Symbol.scan_id --| $$ ")"
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  --| Scan.option ($$ ",")
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val parse_clause_formula_relation =
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  Scan.this_string set_ClauseFormulaRelationN |-- $$ "("
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  |-- Scan.repeat parse_clause_formula_pair
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val extract_clause_formula_relation =
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  Substring.full
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  #> Substring.position set_ClauseFormulaRelationN
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  #> snd #> Substring.string #> strip_spaces #> explode
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  #> parse_clause_formula_relation #> fst
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fun repair_conjecture_shape_and_theorem_names output conjecture_shape
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                                              thm_names =
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  if String.isSubstring set_ClauseFormulaRelationN output then
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    let
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      (* FIXME: hd of head once clausification is left to the ATP *)
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      val j0 = hd (List.concat conjecture_shape)
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      val seq = extract_clause_sequence output
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      val name_map = extract_clause_formula_relation output
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      fun renumber_conjecture j =
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        AList.find (op =) name_map (conjecture_prefix ^ Int.toString (j - j0))
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        |> the_single
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        |> (fn s => find_index (curry (op =) s) seq + 1)
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    in
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      (conjecture_shape |> map (map renumber_conjecture),
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       seq |> map (the o AList.lookup (op =) name_map)
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           |> map (fn s => case try (unprefix axiom_prefix) s of
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                             SOME s' => undo_ascii_of s'
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                           | NONE => "")
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           |> Vector.fromList)
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    end
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  else
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    (conjecture_shape, thm_names)
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(* generic TPTP-based provers *)
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fun generic_tptp_prover
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        (name, {home_var, executable, arguments, proof_delims, known_failures,
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                max_axiom_clauses, prefers_theory_relevant, explicit_forall})
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        ({debug, overlord, full_types, explicit_apply, relevance_threshold,
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          relevance_convergence, theory_relevant, defs_relevant, isar_proof,
blanchet@37580
   317
          isar_shrink_factor, ...} : params)
blanchet@37499
   318
        minimize_command timeout
blanchet@35969
   319
        ({subgoal, goal, relevance_override, axiom_clauses, filtered_clauses}
blanchet@35969
   320
         : problem) =
wenzelm@28596
   321
  let
immler@31750
   322
    (* get clauses and prepare them for writing *)
blanchet@37498
   323
    val (ctxt, (_, th)) = goal;
wenzelm@32942
   324
    val thy = ProofContext.theory_of ctxt;
blanchet@37995
   325
    (* ### FIXME: (1) preprocessing for "if" etc. *)
blanchet@37995
   326
    val (params, hyp_ts, concl_t) = strip_subgoal th subgoal
immler@31752
   327
    val the_filtered_clauses =
blanchet@37621
   328
      case filtered_clauses of
blanchet@37621
   329
        SOME fcls => fcls
blanchet@37621
   330
      | NONE => relevant_facts full_types relevance_threshold
blanchet@37499
   331
                    relevance_convergence defs_relevant max_axiom_clauses
blanchet@37499
   332
                    (the_default prefers_theory_relevant theory_relevant)
blanchet@37995
   333
                    relevance_override goal hyp_ts concl_t
blanchet@37926
   334
                |> Clausifier.cnf_rules_pairs thy true
blanchet@37506
   335
    val the_axiom_clauses = axiom_clauses |> the_default the_filtered_clauses
blanchet@35969
   336
    val (internal_thm_names, clauses) =
blanchet@37995
   337
      prepare_clauses full_types hyp_ts concl_t the_axiom_clauses
blanchet@37995
   338
                      the_filtered_clauses thy
immler@31750
   339
boehmes@32864
   340
    (* path to unique problem file *)
blanchet@36376
   341
    val the_dest_dir = if overlord then getenv "ISABELLE_HOME_USER"
blanchet@36376
   342
                       else Config.get ctxt dest_dir;
blanchet@36376
   343
    val the_problem_prefix = Config.get ctxt problem_prefix;
boehmes@32864
   344
    fun prob_pathname nr =
blanchet@36143
   345
      let
blanchet@36143
   346
        val probfile =
blanchet@36568
   347
          Path.basic ((if overlord then "prob_" ^ name
blanchet@36568
   348
                       else the_problem_prefix ^ serial_string ())
blanchet@36143
   349
                      ^ "_" ^ string_of_int nr)
wenzelm@32942
   350
      in
blanchet@36376
   351
        if the_dest_dir = "" then File.tmp_path probfile
blanchet@36376
   352
        else if File.exists (Path.explode the_dest_dir)
blanchet@36376
   353
        then Path.append (Path.explode the_dest_dir) probfile
blanchet@36376
   354
        else error ("No such directory: " ^ the_dest_dir ^ ".")
wenzelm@32942
   355
      end;
boehmes@32864
   356
blanchet@36917
   357
    val home = getenv home_var
blanchet@36289
   358
    val command = Path.explode (home ^ "/" ^ executable)
immler@31750
   359
    (* write out problem file and call prover *)
blanchet@37514
   360
    fun command_line complete probfile =
blanchet@37514
   361
      let
blanchet@37514
   362
        val core = File.shell_path command ^ " " ^ arguments complete timeout ^
blanchet@37514
   363
                   " " ^ File.shell_path probfile
blanchet@37514
   364
      in
blanchet@37514
   365
        (if Config.get ctxt measure_runtime then
blanchet@37514
   366
           "TIMEFORMAT='%3U'; { time " ^ core ^ " ; }"
blanchet@37514
   367
         else
blanchet@37962
   368
           "exec " ^ core) ^ " 2>&1"
blanchet@37514
   369
      end
boehmes@32510
   370
    fun split_time s =
boehmes@32510
   371
      let
wenzelm@32942
   372
        val split = String.tokens (fn c => str c = "\n");
blanchet@36369
   373
        val (output, t) = s |> split |> split_last |> apfst cat_lines;
wenzelm@32942
   374
        fun as_num f = f >> (fst o read_int);
wenzelm@32942
   375
        val num = as_num (Scan.many1 Symbol.is_ascii_digit);
wenzelm@32942
   376
        val digit = Scan.one Symbol.is_ascii_digit;
wenzelm@32942
   377
        val num3 = as_num (digit ::: digit ::: (digit >> single));
wenzelm@32942
   378
        val time = num --| Scan.$$ "." -- num3 >> (fn (a, b) => a * 1000 + b);
wenzelm@32942
   379
        val as_time = the_default 0 o Scan.read Symbol.stopper time o explode;
blanchet@36369
   380
      in (output, as_time t) end;
boehmes@32458
   381
    fun run_on probfile =
blanchet@37962
   382
      if home = "" then
blanchet@37962
   383
        error ("The environment variable " ^ quote home_var ^ " is not set.")
blanchet@37962
   384
      else if File.exists command then
blanchet@37514
   385
        let
blanchet@37514
   386
          fun do_run complete =
blanchet@37514
   387
            let
blanchet@37514
   388
              val command = command_line complete probfile
blanchet@37514
   389
              val ((output, msecs), res_code) =
blanchet@37514
   390
                bash_output command
blanchet@37514
   391
                |>> (if overlord then
blanchet@37514
   392
                       prefix ("% " ^ command ^ "\n% " ^ timestamp () ^ "\n")
blanchet@37514
   393
                     else
blanchet@37514
   394
                       I)
blanchet@37514
   395
                |>> (if Config.get ctxt measure_runtime then split_time
blanchet@37514
   396
                     else rpair 0)
blanchet@37514
   397
              val (proof, outcome) =
blanchet@37514
   398
                extract_proof_and_outcome complete res_code proof_delims
blanchet@37514
   399
                                          known_failures output
blanchet@37514
   400
            in (output, msecs, proof, outcome) end
blanchet@37643
   401
          val readable_names = debug andalso overlord
blanchet@37514
   402
          val (pool, conjecture_offset) =
blanchet@37994
   403
            write_tptp_file thy readable_names explicit_forall full_types
blanchet@37994
   404
                            explicit_apply probfile clauses
blanchet@37995
   405
          val conjecture_shape =
blanchet@37995
   406
            conjecture_offset + 1 upto conjecture_offset + length hyp_ts + 1
blanchet@37995
   407
            |> map single (* ### FIXME: get rid of "map single" *)
blanchet@37514
   408
          val result =
blanchet@37514
   409
            do_run false
blanchet@37550
   410
            |> (fn (_, msecs0, _, SOME _) =>
blanchet@37514
   411
                   do_run true
blanchet@37514
   412
                   |> (fn (output, msecs, proof, outcome) =>
blanchet@37514
   413
                          (output, msecs0 + msecs, proof, outcome))
blanchet@37514
   414
                 | result => result)
blanchet@37514
   415
        in ((pool, conjecture_shape), result) end
blanchet@36382
   416
      else
blanchet@36382
   417
        error ("Bad executable: " ^ Path.implode command ^ ".");
wenzelm@28592
   418
blanchet@36167
   419
    (* If the problem file has not been exported, remove it; otherwise, export
blanchet@36167
   420
       the proof file too. *)
blanchet@36376
   421
    fun cleanup probfile =
blanchet@36376
   422
      if the_dest_dir = "" then try File.rm probfile else NONE
blanchet@37514
   423
    fun export probfile (_, (output, _, _, _)) =
blanchet@36376
   424
      if the_dest_dir = "" then
blanchet@36187
   425
        ()
blanchet@36187
   426
      else
blanchet@37514
   427
        File.write (Path.explode (Path.implode probfile ^ "_proof")) output
wenzelm@32257
   428
blanchet@37514
   429
    val ((pool, conjecture_shape), (output, msecs, proof, outcome)) =
blanchet@37514
   430
      with_path cleanup export run_on (prob_pathname subgoal)
blanchet@37989
   431
    val (conjecture_shape, internal_thm_names) =
blanchet@37989
   432
      repair_conjecture_shape_and_theorem_names output conjecture_shape
blanchet@37989
   433
                                                internal_thm_names
blanchet@37514
   434
blanchet@35969
   435
    val (message, relevant_thm_names) =
blanchet@36370
   436
      case outcome of
blanchet@36400
   437
        NONE =>
blanchet@36400
   438
        proof_text isar_proof
blanchet@37480
   439
            (pool, debug, isar_shrink_factor, ctxt, conjecture_shape)
blanchet@37480
   440
            (full_types, minimize_command, proof, internal_thm_names, th,
blanchet@37480
   441
             subgoal)
blanchet@36370
   442
      | SOME failure => (string_for_failure failure ^ "\n", [])
boehmes@32864
   443
  in
blanchet@36393
   444
    {outcome = outcome, message = message, pool = pool,
blanchet@37514
   445
     relevant_thm_names = relevant_thm_names, atp_run_time_in_msecs = msecs,
blanchet@37514
   446
     output = output, proof = proof, internal_thm_names = internal_thm_names,
blanchet@36400
   447
     conjecture_shape = conjecture_shape,
blanchet@35969
   448
     filtered_clauses = the_filtered_clauses}
blanchet@37499
   449
  end
wenzelm@28596
   450
blanchet@35969
   451
fun tptp_prover name p = (name, generic_tptp_prover (name, p));
wenzelm@28596
   452
blanchet@36382
   453
fun to_generous_secs time = (Time.toMilliseconds time + 999) div 1000
blanchet@36142
   454
wenzelm@28596
   455
(* E prover *)
wenzelm@28596
   456
blanchet@36369
   457
val tstp_proof_delims =
blanchet@36369
   458
  ("# SZS output start CNFRefutation.", "# SZS output end CNFRefutation")
blanchet@36369
   459
blanchet@35969
   460
val e_config : prover_config =
blanchet@36917
   461
  {home_var = "E_HOME",
blanchet@36289
   462
   executable = "eproof",
blanchet@37514
   463
   arguments = fn _ => fn timeout =>
blanchet@36382
   464
     "--tstp-in --tstp-out -l5 -xAutoDev -tAutoDev --silent --cpu-limit=" ^
blanchet@36382
   465
     string_of_int (to_generous_secs timeout),
blanchet@36369
   466
   proof_delims = [tstp_proof_delims],
blanchet@36265
   467
   known_failures =
blanchet@37995
   468
     [(Unprovable, "SZS status: CounterSatisfiable"),
blanchet@37995
   469
      (Unprovable, "SZS status CounterSatisfiable"),
blanchet@36370
   470
      (TimedOut, "Failure: Resource limit exceeded (time)"),
blanchet@36370
   471
      (TimedOut, "time limit exceeded"),
blanchet@36370
   472
      (OutOfResources,
blanchet@36370
   473
       "# Cannot determine problem status within resource limit"),
blanchet@36370
   474
      (OutOfResources, "SZS status: ResourceOut"),
blanchet@36370
   475
      (OutOfResources, "SZS status ResourceOut")],
blanchet@36382
   476
   max_axiom_clauses = 100,
blanchet@37994
   477
   prefers_theory_relevant = false,
blanchet@37994
   478
   explicit_forall = false}
blanchet@35969
   479
val e = tptp_prover "e" e_config
wenzelm@28596
   480
wenzelm@28596
   481
blanchet@36219
   482
(* The "-VarWeight=3" option helps the higher-order problems, probably by
blanchet@36219
   483
   counteracting the presence of "hAPP". *)
blanchet@37498
   484
val spass_config : prover_config =
blanchet@37962
   485
  {home_var = "ISABELLE_ATP_MANAGER",
blanchet@37962
   486
   executable = "SPASS_TPTP",
blanchet@37550
   487
   (* "div 2" accounts for the fact that SPASS is often run twice. *)
blanchet@37514
   488
   arguments = fn complete => fn timeout =>
blanchet@37962
   489
     ("-Auto -PGiven=0 -PProblem=0 -Splits=0 -FullRed=0 -DocProof \
blanchet@37550
   490
      \-VarWeight=3 -TimeLimit=" ^
blanchet@37550
   491
      string_of_int (to_generous_secs timeout div 2))
blanchet@37514
   492
     |> not complete ? prefix "-SOS=1 ",
blanchet@36369
   493
   proof_delims = [("Here is a proof", "Formulae used in the proof")],
blanchet@36289
   494
   known_failures =
blanchet@37413
   495
     [(IncompleteUnprovable, "SPASS beiseite: Completion found"),
blanchet@36370
   496
      (TimedOut, "SPASS beiseite: Ran out of time"),
blanchet@36965
   497
      (OutOfResources, "SPASS beiseite: Maximal number of loops exceeded"),
blanchet@37413
   498
      (MalformedInput, "Undefined symbol"),
blanchet@37414
   499
      (MalformedInput, "Free Variable"),
blanchet@37962
   500
      (OldSpass, "tptp2dfg")],
blanchet@36382
   501
   max_axiom_clauses = 40,
blanchet@37994
   502
   prefers_theory_relevant = true,
blanchet@37994
   503
   explicit_forall = true}
blanchet@37414
   504
val spass = tptp_prover "spass" spass_config
wenzelm@28596
   505
blanchet@37509
   506
(* Vampire *)
blanchet@37509
   507
blanchet@37509
   508
val vampire_config : prover_config =
blanchet@37509
   509
  {home_var = "VAMPIRE_HOME",
blanchet@37509
   510
   executable = "vampire",
blanchet@37514
   511
   arguments = fn _ => fn timeout =>
blanchet@37509
   512
     "--output_syntax tptp --mode casc -t " ^
blanchet@37509
   513
     string_of_int (to_generous_secs timeout),
blanchet@37509
   514
   proof_delims =
blanchet@37509
   515
     [("=========== Refutation ==========",
blanchet@37509
   516
       "======= End of refutation ======="),
blanchet@37509
   517
      ("% SZS output start Refutation", "% SZS output end Refutation")],
blanchet@37509
   518
   known_failures =
blanchet@37509
   519
     [(Unprovable, "UNPROVABLE"),
blanchet@37509
   520
      (IncompleteUnprovable, "CANNOT PROVE"),
blanchet@37509
   521
      (Unprovable, "Satisfiability detected"),
blanchet@37509
   522
      (OutOfResources, "Refutation not found")],
blanchet@37509
   523
   max_axiom_clauses = 60,
blanchet@37994
   524
   prefers_theory_relevant = false,
blanchet@37994
   525
   explicit_forall = false}
blanchet@37509
   526
val vampire = tptp_prover "vampire" vampire_config
blanchet@37509
   527
blanchet@37509
   528
(* Remote prover invocation via SystemOnTPTP *)
wenzelm@28596
   529
blanchet@36376
   530
val systems = Synchronized.var "atp_systems" ([]: string list);
immler@31835
   531
immler@31835
   532
fun get_systems () =
blanchet@36370
   533
  case bash_output "\"$ISABELLE_ATP_MANAGER/SystemOnTPTP\" -w" of
blanchet@36370
   534
    (answer, 0) => split_lines answer
blanchet@36370
   535
  | (answer, _) =>
blanchet@37627
   536
    error ("Failed to get available systems at SystemOnTPTP:\n" ^
blanchet@37627
   537
           perhaps (try (unsuffix "\n")) answer)
immler@31835
   538
blanchet@35867
   539
fun refresh_systems_on_tptp () =
blanchet@37509
   540
  Synchronized.change systems (fn _ => get_systems ())
immler@31835
   541
immler@31835
   542
fun get_system prefix = Synchronized.change_result systems (fn systems =>
boehmes@32864
   543
  (if null systems then get_systems () else systems)
wenzelm@32942
   544
  |> `(find_first (String.isPrefix prefix)));
boehmes@32864
   545
wenzelm@32948
   546
fun the_system prefix =
boehmes@32864
   547
  (case get_system prefix of
blanchet@37509
   548
    NONE => error ("System " ^ quote prefix ^ " not available at SystemOnTPTP.")
wenzelm@32942
   549
  | SOME sys => sys);
immler@31835
   550
blanchet@36265
   551
val remote_known_failures =
blanchet@37627
   552
  [(CantConnect, "HTTP-Error"),
blanchet@37627
   553
   (TimedOut, "says Timeout"),
blanchet@36377
   554
   (MalformedOutput, "Remote script could not extract proof")]
blanchet@35865
   555
blanchet@37509
   556
fun remote_config atp_prefix args
blanchet@36382
   557
        ({proof_delims, known_failures, max_axiom_clauses,
blanchet@37994
   558
          prefers_theory_relevant, explicit_forall, ...} : prover_config)
blanchet@37994
   559
        : prover_config =
blanchet@36917
   560
  {home_var = "ISABELLE_ATP_MANAGER",
blanchet@36289
   561
   executable = "SystemOnTPTP",
blanchet@37514
   562
   arguments = fn _ => fn timeout =>
blanchet@36382
   563
     args ^ " -t " ^ string_of_int (to_generous_secs timeout) ^ " -s " ^
blanchet@36382
   564
     the_system atp_prefix,
blanchet@36369
   565
   proof_delims = insert (op =) tstp_proof_delims proof_delims,
blanchet@36265
   566
   known_failures = remote_known_failures @ known_failures,
blanchet@36382
   567
   max_axiom_clauses = max_axiom_clauses,
blanchet@37994
   568
   prefers_theory_relevant = prefers_theory_relevant,
blanchet@37994
   569
   explicit_forall = explicit_forall}
wenzelm@28596
   570
blanchet@37509
   571
fun remote_tptp_prover prover atp_prefix args config =
blanchet@37509
   572
  tptp_prover (remotify (fst prover)) (remote_config atp_prefix args config)
boehmes@32864
   573
blanchet@37509
   574
val remote_e = remote_tptp_prover e "EP---" "" e_config
blanchet@37509
   575
val remote_spass = remote_tptp_prover spass "SPASS---" "-x" spass_config
blanchet@37509
   576
val remote_vampire = remote_tptp_prover vampire "Vampire---9" "" vampire_config
wenzelm@28592
   577
blanchet@36917
   578
fun maybe_remote (name, _) ({home_var, ...} : prover_config) =
blanchet@36917
   579
  name |> getenv home_var = "" ? remotify
blanchet@36371
   580
blanchet@36371
   581
fun default_atps_param_value () =
blanchet@36371
   582
  space_implode " " [maybe_remote e e_config, maybe_remote spass spass_config,
blanchet@36371
   583
                     remotify (fst vampire)]
blanchet@36371
   584
blanchet@37509
   585
val provers = [e, spass, vampire, remote_e, remote_spass, remote_vampire]
blanchet@35867
   586
val prover_setup = fold add_prover provers
blanchet@35867
   587
blanchet@35867
   588
val setup =
blanchet@36376
   589
  dest_dir_setup
blanchet@35867
   590
  #> problem_prefix_setup
blanchet@35867
   591
  #> measure_runtime_setup
blanchet@36371
   592
  #> prover_setup
blanchet@35867
   593
wenzelm@28592
   594
end;