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(* Title: HOL/Tools/Sledgehammer/sledgehammer_isar.ML
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Author: Jasmin Blanchette, TU Muenchen
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Adds "sledgehammer" and related commands to Isabelle/Isar's outer syntax.
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*)
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signature SLEDGEHAMMER_ISAR =
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sig
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type params = Sledgehammer_Provers.params
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val auto : bool Unsynchronized.ref
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val provers : string Unsynchronized.ref
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val timeout : int Unsynchronized.ref
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val full_types : bool Unsynchronized.ref
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val default_params : Proof.context -> (string * string) list -> params
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val setup : theory -> theory
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end;
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structure Sledgehammer_Isar : SLEDGEHAMMER_ISAR =
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struct
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open ATP_Systems
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open Sledgehammer_Util
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open Sledgehammer_ATP_Translate
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open Sledgehammer_Provers
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open Sledgehammer_Minimize
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open Sledgehammer_Run
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val auto = Unsynchronized.ref false
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val _ =
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ProofGeneralPgip.add_preference Preferences.category_tracing
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(Preferences.bool_pref auto "auto-sledgehammer"
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"Run Sledgehammer automatically.")
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(** Sledgehammer commands **)
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val no_relevance_override = {add = [], del = [], only = false}
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fun add_relevance_override ns : relevance_override =
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{add = ns, del = [], only = false}
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fun del_relevance_override ns : relevance_override =
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{add = [], del = ns, only = false}
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fun only_relevance_override ns : relevance_override =
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{add = ns, del = [], only = true}
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fun merge_relevance_override_pairwise (r1 : relevance_override)
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(r2 : relevance_override) =
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{add = #add r1 @ #add r2, del = #del r1 @ #del r2,
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only = #only r1 andalso #only r2}
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fun merge_relevance_overrides rs =
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fold merge_relevance_override_pairwise rs (only_relevance_override [])
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(*** parameters ***)
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val provers = Unsynchronized.ref ""
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val timeout = Unsynchronized.ref 30
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val full_types = Unsynchronized.ref false
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val _ =
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ProofGeneralPgip.add_preference Preferences.category_proof
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(Preferences.string_pref provers
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"Sledgehammer: Provers"
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"Default automatic provers (separated by whitespace)")
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val _ =
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ProofGeneralPgip.add_preference Preferences.category_proof
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(Preferences.int_pref timeout
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"Sledgehammer: Time Limit"
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"ATPs will be interrupted after this time (in seconds)")
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val _ =
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ProofGeneralPgip.add_preference Preferences.category_proof
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(Preferences.bool_pref full_types
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"Sledgehammer: Full Types" "ATPs will use full type information")
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type raw_param = string * string list
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val default_default_params =
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[("debug", "false"),
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("verbose", "false"),
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("overlord", "false"),
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("blocking", "false"),
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("type_sys", "smart"),
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("relevance_thresholds", "0.45 0.85"),
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("max_relevant", "smart"),
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("max_mono_iters", "3"),
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("max_new_mono_instances", "400"),
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("explicit_apply", "false"),
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("isar_proof", "false"),
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("isar_shrink_factor", "1"),
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("slicing", "true")]
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val alias_params =
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[("prover", "provers"),
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("atps", "provers"), (* FIXME: legacy *)
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("atp", "provers")] (* FIXME: legacy *)
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val negated_alias_params =
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[("no_debug", "debug"),
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("quiet", "verbose"),
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("no_overlord", "overlord"),
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("non_blocking", "blocking"),
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("partial_types", "full_types"),
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("implicit_apply", "explicit_apply"),
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("no_isar_proof", "isar_proof"),
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("no_slicing", "slicing")]
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val params_for_minimize =
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["debug", "verbose", "overlord", "type_sys", "full_types", "max_mono_iters",
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"max_new_mono_instances", "isar_proof", "isar_shrink_factor", "timeout"]
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val property_dependent_params = ["provers", "full_types", "timeout"]
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fun is_known_raw_param s =
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AList.defined (op =) default_default_params s orelse
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AList.defined (op =) alias_params s orelse
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AList.defined (op =) negated_alias_params s orelse
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member (op =) property_dependent_params s orelse s = "expect"
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fun is_prover_list ctxt s =
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case space_explode " " s of
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ss as _ :: _ => forall (is_prover_supported ctxt) ss
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| _ => false
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(* Secret feature: "provers =" and "type_sys =" can be left out. *)
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fun check_and_repair_raw_param ctxt (name, value) =
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if is_known_raw_param name then
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(name, value)
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else if is_prover_list ctxt name andalso null value then
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("provers", [name])
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else if can type_sys_from_string name andalso null value then
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("type_sys", [name])
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else
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error ("Unknown parameter: " ^ quote name ^ ".")
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fun unalias_raw_param (name, value) =
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case AList.lookup (op =) alias_params name of
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SOME name' => (name', value)
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| NONE =>
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case AList.lookup (op =) negated_alias_params name of
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SOME name' => (name', case value of
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["false"] => ["true"]
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| ["true"] => ["false"]
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| [] => ["false"]
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| _ => value)
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| NONE => (name, value)
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structure Data = Theory_Data
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(
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type T = raw_param list
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val empty = default_default_params |> map (apsnd single)
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val extend = I
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fun merge data : T = AList.merge (op =) (K true) data
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)
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fun remotify_prover_if_supported_and_not_already_remote ctxt name =
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if String.isPrefix remote_prefix name then
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SOME name
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else
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let val remote_name = remote_prefix ^ name in
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if is_prover_supported ctxt remote_name then SOME remote_name else NONE
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end
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fun remotify_prover_if_not_installed ctxt name =
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if is_prover_supported ctxt name andalso is_prover_installed ctxt name then
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SOME name
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else
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remotify_prover_if_supported_and_not_already_remote ctxt name
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fun avoid_too_many_local_threads _ _ [] = []
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| avoid_too_many_local_threads ctxt 0 provers =
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map_filter (remotify_prover_if_supported_and_not_already_remote ctxt)
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provers
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| avoid_too_many_local_threads ctxt n (prover :: provers) =
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let val n = if String.isPrefix remote_prefix prover then n else n - 1 in
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prover :: avoid_too_many_local_threads ctxt n provers
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end
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(* Ensure that type systems such as "simple!" and "mangled_preds?" are handled
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correctly. *)
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fun implode_param [s, "?"] = s ^ "?"
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| implode_param [s, "!"] = s ^ "!"
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| implode_param ss = space_implode " " ss
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(* The first ATP of the list is used by Auto Sledgehammer. Because of the low
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timeout, it makes sense to put SPASS first. *)
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fun default_provers_param_value ctxt =
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[spassN, eN, vampireN, sine_eN, waldmeisterN, SMT_Solver.solver_name_of ctxt]
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|> map_filter (remotify_prover_if_not_installed ctxt)
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|> avoid_too_many_local_threads ctxt (Multithreading.max_threads_value ())
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|> implode_param
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val set_default_raw_param = Data.map o AList.update (op =) o unalias_raw_param
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fun default_raw_params ctxt =
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let val thy = Proof_Context.theory_of ctxt in
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Data.get thy
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|> fold (AList.default (op =))
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[("provers", [case !provers of
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"" => default_provers_param_value ctxt
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| s => s]),
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("full_types", [if !full_types then "true" else "false"]),
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("timeout", let val timeout = !timeout in
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[if timeout <= 0 then "none"
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else string_of_int timeout]
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end)]
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end
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val infinity_time_in_secs = 60 * 60 * 24 * 365
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val the_timeout = the_default (Time.fromSeconds infinity_time_in_secs)
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fun extract_params auto default_params override_params =
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let
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val override_params = map unalias_raw_param override_params
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val raw_params = rev override_params @ rev default_params
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val lookup = Option.map implode_param o AList.lookup (op =) raw_params
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val lookup_string = the_default "" o lookup
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fun general_lookup_bool option default_value name =
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case lookup name of
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SOME s => parse_bool_option option name s
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| NONE => default_value
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val lookup_bool = the o general_lookup_bool false (SOME false)
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fun lookup_time name =
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case lookup name of
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SOME s => parse_time_option name s
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| NONE => NONE
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fun lookup_int name =
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case lookup name of
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NONE => 0
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| SOME s => case Int.fromString s of
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SOME n => n
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| NONE => error ("Parameter " ^ quote name ^
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" must be assigned an integer value.")
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fun lookup_real_pair name =
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case lookup name of
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NONE => (0.0, 0.0)
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| SOME s => case s |> space_explode " " |> map Real.fromString of
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[SOME r1, SOME r2] => (r1, r2)
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| _ => error ("Parameter " ^ quote name ^
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"must be assigned a pair of floating-point \
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\values (e.g., \"0.6 0.95\")")
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blanchet@38812
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fun lookup_int_option name =
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blanchet@38812
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case lookup name of
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blanchet@38812
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SOME "smart" => NONE
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blanchet@38812
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| _ => SOME (lookup_int name)
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val debug = not auto andalso lookup_bool "debug"
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blanchet@39564
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val verbose = debug orelse (not auto andalso lookup_bool "verbose")
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val overlord = lookup_bool "overlord"
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blanchet@43836
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val blocking =
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blanchet@43836
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Isabelle_Process.is_active () orelse auto orelse debug orelse
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lookup_bool "blocking"
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blanchet@40240
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val provers = lookup_string "provers" |> space_explode " "
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|> auto ? single o hd
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val type_sys =
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if auto then
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Smart_Type_Sys true
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blanchet@43601
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else case lookup_string "type_sys" of
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"smart" => Smart_Type_Sys (lookup_bool "full_types")
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| s => Dumb_Type_Sys (type_sys_from_string s)
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val relevance_thresholds = lookup_real_pair "relevance_thresholds"
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val max_relevant = lookup_int_option "max_relevant"
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val max_mono_iters = lookup_int "max_mono_iters"
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val max_new_mono_instances = lookup_int "max_new_mono_instances"
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val explicit_apply = lookup_bool "explicit_apply"
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blanchet@35961
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val isar_proof = lookup_bool "isar_proof"
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blanchet@36916
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val isar_shrink_factor = Int.max (1, lookup_int "isar_shrink_factor")
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blanchet@43315
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val slicing = not auto andalso lookup_bool "slicing"
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blanchet@39564
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val timeout = (if auto then NONE else lookup_time "timeout") |> the_timeout
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val expect = lookup_string "expect"
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in
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{debug = debug, verbose = verbose, overlord = overlord, blocking = blocking,
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provers = provers, relevance_thresholds = relevance_thresholds,
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max_relevant = max_relevant, max_mono_iters = max_mono_iters,
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max_new_mono_instances = max_new_mono_instances, type_sys = type_sys,
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explicit_apply = explicit_apply, isar_proof = isar_proof,
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273 |
isar_shrink_factor = isar_shrink_factor, slicing = slicing,
|
blanchet@43589
|
274 |
timeout = timeout, expect = expect}
|
blanchet@35961
|
275 |
end
|
blanchet@35961
|
276 |
|
blanchet@40250
|
277 |
fun get_params auto ctxt = extract_params auto (default_raw_params ctxt)
|
blanchet@39564
|
278 |
fun default_params thy = get_params false thy o map (apsnd single)
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blanchet@35866
|
279 |
|
blanchet@36373
|
280 |
(* Sledgehammer the given subgoal *)
|
blanchet@36373
|
281 |
|
blanchet@36373
|
282 |
val sledgehammerN = "sledgehammer"
|
blanchet@36373
|
283 |
val sledgehammer_paramsN = "sledgehammer_params"
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blanchet@36373
|
284 |
|
blanchet@35963
|
285 |
val runN = "run"
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blanchet@35963
|
286 |
val minimizeN = "minimize"
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blanchet@35963
|
287 |
val messagesN = "messages"
|
blanchet@42591
|
288 |
val supported_proversN = "supported_provers"
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blanchet@40240
|
289 |
val running_proversN = "running_provers"
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blanchet@40240
|
290 |
val kill_proversN = "kill_provers"
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blanchet@35963
|
291 |
val refresh_tptpN = "refresh_tptp"
|
blanchet@35866
|
292 |
|
blanchet@36281
|
293 |
val is_raw_param_relevant_for_minimize =
|
blanchet@36281
|
294 |
member (op =) params_for_minimize o fst o unalias_raw_param
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blanchet@36281
|
295 |
fun string_for_raw_param (key, values) =
|
blanchet@43647
|
296 |
key ^ (case implode_param values of "" => "" | value => " = " ^ value)
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blanchet@36281
|
297 |
|
blanchet@40240
|
298 |
fun minimize_command override_params i prover_name fact_names =
|
blanchet@40240
|
299 |
sledgehammerN ^ " " ^ minimizeN ^ " [prover = " ^ prover_name ^
|
blanchet@36281
|
300 |
(override_params |> filter is_raw_param_relevant_for_minimize
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blanchet@36281
|
301 |
|> implode o map (prefix ", " o string_for_raw_param)) ^
|
blanchet@37165
|
302 |
"] (" ^ space_implode " " fact_names ^ ")" ^
|
blanchet@36281
|
303 |
(if i = 1 then "" else " " ^ string_of_int i)
|
blanchet@36281
|
304 |
|
blanchet@35964
|
305 |
fun hammer_away override_params subcommand opt_i relevance_override state =
|
blanchet@35961
|
306 |
let
|
blanchet@40250
|
307 |
val ctxt = Proof.context_of state
|
blanchet@41504
|
308 |
val override_params =
|
blanchet@41504
|
309 |
override_params |> map (check_and_repair_raw_param ctxt)
|
blanchet@35963
|
310 |
in
|
blanchet@35963
|
311 |
if subcommand = runN then
|
blanchet@36281
|
312 |
let val i = the_default 1 opt_i in
|
blanchet@43315
|
313 |
run_sledgehammer (get_params false ctxt override_params) false i
|
blanchet@39564
|
314 |
relevance_override (minimize_command override_params i)
|
blanchet@39564
|
315 |
state
|
blanchet@39564
|
316 |
|> K ()
|
blanchet@36281
|
317 |
end
|
blanchet@35963
|
318 |
else if subcommand = minimizeN then
|
blanchet@40250
|
319 |
run_minimize (get_params false ctxt override_params) (the_default 1 opt_i)
|
blanchet@38813
|
320 |
(#add relevance_override) state
|
blanchet@35963
|
321 |
else if subcommand = messagesN then
|
blanchet@35963
|
322 |
messages opt_i
|
blanchet@42591
|
323 |
else if subcommand = supported_proversN then
|
blanchet@42591
|
324 |
supported_provers ctxt
|
blanchet@40240
|
325 |
else if subcommand = running_proversN then
|
blanchet@40240
|
326 |
running_provers ()
|
blanchet@40240
|
327 |
else if subcommand = kill_proversN then
|
blanchet@40240
|
328 |
kill_provers ()
|
blanchet@35963
|
329 |
else if subcommand = refresh_tptpN then
|
blanchet@35963
|
330 |
refresh_systems_on_tptp ()
|
blanchet@35963
|
331 |
else
|
blanchet@35963
|
332 |
error ("Unknown subcommand: " ^ quote subcommand ^ ".")
|
blanchet@35963
|
333 |
end
|
blanchet@35961
|
334 |
|
blanchet@35964
|
335 |
fun sledgehammer_trans (((subcommand, params), relevance_override), opt_i) =
|
blanchet@35964
|
336 |
Toplevel.keep (hammer_away params subcommand opt_i relevance_override
|
blanchet@35964
|
337 |
o Toplevel.proof_of)
|
blanchet@35961
|
338 |
|
blanchet@43647
|
339 |
fun string_for_raw_param (name, value) = name ^ " = " ^ implode_param value
|
blanchet@35961
|
340 |
|
blanchet@35963
|
341 |
fun sledgehammer_params_trans params =
|
blanchet@35961
|
342 |
Toplevel.theory
|
blanchet@35963
|
343 |
(fold set_default_raw_param params
|
blanchet@39564
|
344 |
#> tap (fn thy =>
|
wenzelm@43232
|
345 |
let val ctxt = Proof_Context.init_global thy in
|
blanchet@40250
|
346 |
writeln ("Default parameters for Sledgehammer:\n" ^
|
blanchet@40250
|
347 |
(case default_raw_params ctxt |> rev of
|
blanchet@40250
|
348 |
[] => "none"
|
blanchet@40250
|
349 |
| params =>
|
blanchet@41504
|
350 |
params |> map (check_and_repair_raw_param ctxt)
|
blanchet@41504
|
351 |
|> map string_for_raw_param
|
blanchet@41504
|
352 |
|> sort_strings |> cat_lines))
|
blanchet@40250
|
353 |
end))
|
blanchet@35961
|
354 |
|
blanchet@43647
|
355 |
val parse_key =
|
blanchet@43647
|
356 |
Scan.repeat1 (Parse.typ_group || Parse.$$$ "?" || Parse.$$$ "!")
|
blanchet@43647
|
357 |
>> implode_param
|
blanchet@43452
|
358 |
val parse_value =
|
blanchet@43460
|
359 |
Scan.repeat1 (Parse.xname || Parse.float_number || Parse.$$$ "?"
|
blanchet@43452
|
360 |
|| Parse.$$$ "!")
|
wenzelm@36970
|
361 |
val parse_param = parse_key -- Scan.optional (Parse.$$$ "=" |-- parse_value) []
|
wenzelm@36970
|
362 |
val parse_params = Scan.optional (Args.bracks (Parse.list parse_param)) []
|
blanchet@35963
|
363 |
val parse_fact_refs =
|
blanchet@39240
|
364 |
Scan.repeat1 (Scan.unless (Parse.name -- Args.colon) Parse_Spec.xthm)
|
blanchet@35964
|
365 |
val parse_relevance_chunk =
|
blanchet@39564
|
366 |
(Args.add |-- Args.colon |-- parse_fact_refs >> add_relevance_override)
|
blanchet@39564
|
367 |
|| (Args.del |-- Args.colon |-- parse_fact_refs >> del_relevance_override)
|
blanchet@36188
|
368 |
|| (parse_fact_refs >> only_relevance_override)
|
blanchet@35964
|
369 |
val parse_relevance_override =
|
blanchet@36188
|
370 |
Scan.optional (Args.parens (Scan.repeat parse_relevance_chunk
|
blanchet@36188
|
371 |
>> merge_relevance_overrides))
|
blanchet@39564
|
372 |
no_relevance_override
|
blanchet@35961
|
373 |
val parse_sledgehammer_command =
|
blanchet@37374
|
374 |
(Scan.optional Parse.short_ident runN -- parse_params
|
blanchet@37374
|
375 |
-- parse_relevance_override -- Scan.option Parse.nat) #>> sledgehammer_trans
|
blanchet@35961
|
376 |
val parse_sledgehammer_params_command =
|
blanchet@35961
|
377 |
parse_params #>> sledgehammer_params_trans
|
blanchet@35961
|
378 |
|
blanchet@35961
|
379 |
val _ =
|
wenzelm@36970
|
380 |
Outer_Syntax.improper_command sledgehammerN
|
wenzelm@36970
|
381 |
"search for first-order proof using automatic theorem provers" Keyword.diag
|
blanchet@36394
|
382 |
parse_sledgehammer_command
|
blanchet@35961
|
383 |
val _ =
|
wenzelm@36970
|
384 |
Outer_Syntax.command sledgehammer_paramsN
|
wenzelm@36970
|
385 |
"set and display the default parameters for Sledgehammer" Keyword.thy_decl
|
blanchet@36394
|
386 |
parse_sledgehammer_params_command
|
blanchet@36394
|
387 |
|
blanchet@39564
|
388 |
fun auto_sledgehammer state =
|
blanchet@41175
|
389 |
let val ctxt = Proof.context_of state in
|
blanchet@43318
|
390 |
run_sledgehammer (get_params true ctxt []) true 1 no_relevance_override
|
blanchet@43318
|
391 |
(minimize_command [] 1) state
|
blanchet@41175
|
392 |
end
|
blanchet@39564
|
393 |
|
blanchet@41175
|
394 |
val setup = Auto_Tools.register_tool (auto, auto_sledgehammer)
|
blanchet@39564
|
395 |
|
blanchet@35866
|
396 |
end;
|