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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 sledgehammerN : string
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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 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 ATP_Translate
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open Sledgehammer_Util
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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 sledgehammerN = "sledgehammer"
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val sledgehammer_paramsN = "sledgehammer_params"
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val runN = "run"
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val minN = "min"
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val messagesN = "messages"
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val supported_proversN = "supported_provers"
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val running_proversN = "running_provers"
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val kill_proversN = "kill_provers"
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val refresh_tptpN = "refresh_tptp"
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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 _ =
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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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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", "200"),
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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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("preplay_timeout", "4")]
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val alias_params =
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[("prover", "provers")]
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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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("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", "max_mono_iters",
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"max_new_mono_instances", "isar_proof", "isar_shrink_factor", "timeout",
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"preplay_timeout"]
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val property_dependent_params = ["provers", "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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(* 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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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_threads _ _ [] = []
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| avoid_too_many_threads _ (0, 0) _ = []
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| avoid_too_many_threads ctxt (0, max_remote) provers =
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provers
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|> map_filter (remotify_prover_if_supported_and_not_already_remote ctxt)
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|> take max_remote
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| avoid_too_many_threads _ (max_local, 0) provers =
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provers
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|> filter_out (String.isPrefix remote_prefix)
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|> take max_local
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| avoid_too_many_threads ctxt max_local_and_remote (prover :: provers) =
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let
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val max_local_and_remote =
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max_local_and_remote
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|> (if String.isPrefix remote_prefix prover then apsnd else apfst)
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(Integer.add ~1)
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in prover :: avoid_too_many_threads ctxt max_local_and_remote provers end
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val max_default_remote_threads = 4
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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, SMT_Solver.solver_name_of ctxt, sine_eN, waldmeisterN]
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|> map_filter (remotify_prover_if_not_installed ctxt)
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|> avoid_too_many_threads ctxt (Multithreading.max_threads_value (),
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max_default_remote_threads)
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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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("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 mode 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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blanchet@35961
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fun lookup_time name =
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case lookup name of
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blanchet@39564
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SOME s => parse_time_option name s
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blanchet@39564
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| NONE => NONE
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blanchet@35964
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fun lookup_int name =
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blanchet@35961
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case lookup name of
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NONE => 0
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blanchet@35964
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| SOME s => case Int.fromString s of
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SOME n => n
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blanchet@35964
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| NONE => error ("Parameter " ^ quote name ^
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" must be assigned an integer value.")
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blanchet@40584
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fun lookup_real_pair name =
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case lookup name of
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blanchet@40584
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NONE => (0.0, 0.0)
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blanchet@40584
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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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blanchet@40584
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\values (e.g., \"0.6 0.95\")")
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blanchet@43905
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fun lookup_option lookup' 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@43905
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| _ => SOME (lookup' name)
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val debug = mode <> Auto_Try andalso lookup_bool "debug"
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blanchet@43862
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val verbose = debug orelse (mode <> Auto_Try andalso lookup_bool "verbose")
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val overlord = lookup_bool "overlord"
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val blocking =
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Isabelle_Process.is_active () orelse mode <> Normal orelse debug orelse
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lookup_bool "blocking"
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val provers = lookup_string "provers" |> space_explode " "
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|> mode = Auto_Try ? single o hd
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blanchet@43419
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val type_sys =
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blanchet@43862
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if mode = Auto_Try then
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NONE
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blanchet@43601
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else case lookup_string "type_sys" of
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"smart" => NONE
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blanchet@44431
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| s => SOME (type_sys_from_string s)
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blanchet@43051
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val relevance_thresholds = lookup_real_pair "relevance_thresholds"
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blanchet@43905
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val max_relevant = lookup_option lookup_int "max_relevant"
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blanchet@43589
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val max_mono_iters = lookup_int "max_mono_iters"
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blanchet@43605
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val max_new_mono_instances = lookup_int "max_new_mono_instances"
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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@43862
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val slicing = mode <> Auto_Try andalso lookup_bool "slicing"
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blanchet@43862
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val timeout =
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blanchet@43862
|
278 |
(if mode = Auto_Try then NONE else lookup_time "timeout") |> the_timeout
|
blanchet@43856
|
279 |
val preplay_timeout =
|
blanchet@43862
|
280 |
if mode = Auto_Try then Time.zeroTime
|
blanchet@43856
|
281 |
else lookup_time "preplay_timeout" |> the_timeout
|
blanchet@39229
|
282 |
val expect = lookup_string "expect"
|
blanchet@35961
|
283 |
in
|
blanchet@41456
|
284 |
{debug = debug, verbose = verbose, overlord = overlord, blocking = blocking,
|
blanchet@43051
|
285 |
provers = provers, relevance_thresholds = relevance_thresholds,
|
blanchet@43589
|
286 |
max_relevant = max_relevant, max_mono_iters = max_mono_iters,
|
blanchet@43605
|
287 |
max_new_mono_instances = max_new_mono_instances, type_sys = type_sys,
|
blanchet@44100
|
288 |
isar_proof = isar_proof, isar_shrink_factor = isar_shrink_factor,
|
blanchet@44100
|
289 |
slicing = slicing, timeout = timeout, preplay_timeout = preplay_timeout,
|
blanchet@44100
|
290 |
expect = expect}
|
blanchet@35961
|
291 |
end
|
blanchet@35961
|
292 |
|
blanchet@43862
|
293 |
fun get_params mode ctxt = extract_params mode (default_raw_params ctxt)
|
blanchet@43862
|
294 |
fun default_params thy = get_params Normal thy o map (apsnd single)
|
blanchet@35866
|
295 |
|
blanchet@36373
|
296 |
(* Sledgehammer the given subgoal *)
|
blanchet@36373
|
297 |
|
blanchet@43892
|
298 |
val default_minimize_prover = Metis_Tactics.metisN
|
blanchet@43892
|
299 |
|
blanchet@36281
|
300 |
val is_raw_param_relevant_for_minimize =
|
blanchet@36281
|
301 |
member (op =) params_for_minimize o fst o unalias_raw_param
|
blanchet@36281
|
302 |
fun string_for_raw_param (key, values) =
|
blanchet@43647
|
303 |
key ^ (case implode_param values of "" => "" | value => " = " ^ value)
|
blanchet@36281
|
304 |
|
blanchet@40240
|
305 |
fun minimize_command override_params i prover_name fact_names =
|
blanchet@43898
|
306 |
let
|
blanchet@43898
|
307 |
val params =
|
blanchet@43898
|
308 |
override_params
|
blanchet@43898
|
309 |
|> filter is_raw_param_relevant_for_minimize
|
blanchet@43898
|
310 |
|> map string_for_raw_param
|
blanchet@43898
|
311 |
|> (if prover_name = default_minimize_prover then I else cons prover_name)
|
blanchet@43898
|
312 |
|> space_implode ", "
|
blanchet@43898
|
313 |
in
|
blanchet@43898
|
314 |
sledgehammerN ^ " " ^ minN ^
|
blanchet@43898
|
315 |
(if params = "" then "" else enclose " [" "]" params) ^
|
blanchet@43898
|
316 |
" (" ^ space_implode " " fact_names ^ ")" ^
|
blanchet@43898
|
317 |
(if i = 1 then "" else " " ^ string_of_int i)
|
blanchet@43898
|
318 |
end
|
blanchet@36281
|
319 |
|
blanchet@35964
|
320 |
fun hammer_away override_params subcommand opt_i relevance_override state =
|
blanchet@35961
|
321 |
let
|
blanchet@40250
|
322 |
val ctxt = Proof.context_of state
|
blanchet@41504
|
323 |
val override_params =
|
blanchet@41504
|
324 |
override_params |> map (check_and_repair_raw_param ctxt)
|
blanchet@35963
|
325 |
in
|
blanchet@35963
|
326 |
if subcommand = runN then
|
blanchet@36281
|
327 |
let val i = the_default 1 opt_i in
|
blanchet@43862
|
328 |
run_sledgehammer (get_params Normal ctxt override_params) Normal i
|
blanchet@39564
|
329 |
relevance_override (minimize_command override_params i)
|
blanchet@39564
|
330 |
state
|
blanchet@39564
|
331 |
|> K ()
|
blanchet@36281
|
332 |
end
|
blanchet@43849
|
333 |
else if subcommand = minN then
|
blanchet@43892
|
334 |
run_minimize (get_params Minimize ctxt
|
blanchet@43892
|
335 |
(("provers", [default_minimize_prover]) ::
|
blanchet@43892
|
336 |
override_params))
|
blanchet@43862
|
337 |
(the_default 1 opt_i) (#add relevance_override) state
|
blanchet@35963
|
338 |
else if subcommand = messagesN then
|
blanchet@35963
|
339 |
messages opt_i
|
blanchet@42591
|
340 |
else if subcommand = supported_proversN then
|
blanchet@42591
|
341 |
supported_provers ctxt
|
blanchet@40240
|
342 |
else if subcommand = running_proversN then
|
blanchet@40240
|
343 |
running_provers ()
|
blanchet@40240
|
344 |
else if subcommand = kill_proversN then
|
blanchet@40240
|
345 |
kill_provers ()
|
blanchet@35963
|
346 |
else if subcommand = refresh_tptpN then
|
blanchet@35963
|
347 |
refresh_systems_on_tptp ()
|
blanchet@35963
|
348 |
else
|
blanchet@35963
|
349 |
error ("Unknown subcommand: " ^ quote subcommand ^ ".")
|
blanchet@35963
|
350 |
end
|
blanchet@35961
|
351 |
|
blanchet@35964
|
352 |
fun sledgehammer_trans (((subcommand, params), relevance_override), opt_i) =
|
blanchet@35964
|
353 |
Toplevel.keep (hammer_away params subcommand opt_i relevance_override
|
blanchet@35964
|
354 |
o Toplevel.proof_of)
|
blanchet@35961
|
355 |
|
blanchet@43647
|
356 |
fun string_for_raw_param (name, value) = name ^ " = " ^ implode_param value
|
blanchet@35961
|
357 |
|
blanchet@35963
|
358 |
fun sledgehammer_params_trans params =
|
blanchet@35961
|
359 |
Toplevel.theory
|
blanchet@35963
|
360 |
(fold set_default_raw_param params
|
blanchet@39564
|
361 |
#> tap (fn thy =>
|
wenzelm@43232
|
362 |
let val ctxt = Proof_Context.init_global thy in
|
blanchet@40250
|
363 |
writeln ("Default parameters for Sledgehammer:\n" ^
|
blanchet@40250
|
364 |
(case default_raw_params ctxt |> rev of
|
blanchet@40250
|
365 |
[] => "none"
|
blanchet@40250
|
366 |
| params =>
|
blanchet@41504
|
367 |
params |> map (check_and_repair_raw_param ctxt)
|
blanchet@41504
|
368 |
|> map string_for_raw_param
|
blanchet@41504
|
369 |
|> sort_strings |> cat_lines))
|
blanchet@40250
|
370 |
end))
|
blanchet@35961
|
371 |
|
blanchet@43647
|
372 |
val parse_key =
|
blanchet@43647
|
373 |
Scan.repeat1 (Parse.typ_group || Parse.$$$ "?" || Parse.$$$ "!")
|
blanchet@43941
|
374 |
>> implode_param
|
blanchet@43452
|
375 |
val parse_value =
|
blanchet@43460
|
376 |
Scan.repeat1 (Parse.xname || Parse.float_number || Parse.$$$ "?"
|
blanchet@43452
|
377 |
|| Parse.$$$ "!")
|
wenzelm@36970
|
378 |
val parse_param = parse_key -- Scan.optional (Parse.$$$ "=" |-- parse_value) []
|
wenzelm@36970
|
379 |
val parse_params = Scan.optional (Args.bracks (Parse.list parse_param)) []
|
blanchet@35963
|
380 |
val parse_fact_refs =
|
blanchet@39240
|
381 |
Scan.repeat1 (Scan.unless (Parse.name -- Args.colon) Parse_Spec.xthm)
|
blanchet@35964
|
382 |
val parse_relevance_chunk =
|
blanchet@39564
|
383 |
(Args.add |-- Args.colon |-- parse_fact_refs >> add_relevance_override)
|
blanchet@39564
|
384 |
|| (Args.del |-- Args.colon |-- parse_fact_refs >> del_relevance_override)
|
blanchet@36188
|
385 |
|| (parse_fact_refs >> only_relevance_override)
|
blanchet@35964
|
386 |
val parse_relevance_override =
|
blanchet@36188
|
387 |
Scan.optional (Args.parens (Scan.repeat parse_relevance_chunk
|
blanchet@36188
|
388 |
>> merge_relevance_overrides))
|
blanchet@39564
|
389 |
no_relevance_override
|
blanchet@35961
|
390 |
val parse_sledgehammer_command =
|
blanchet@37374
|
391 |
(Scan.optional Parse.short_ident runN -- parse_params
|
blanchet@37374
|
392 |
-- parse_relevance_override -- Scan.option Parse.nat) #>> sledgehammer_trans
|
blanchet@35961
|
393 |
val parse_sledgehammer_params_command =
|
blanchet@35961
|
394 |
parse_params #>> sledgehammer_params_trans
|
blanchet@35961
|
395 |
|
blanchet@35961
|
396 |
val _ =
|
wenzelm@36970
|
397 |
Outer_Syntax.improper_command sledgehammerN
|
wenzelm@36970
|
398 |
"search for first-order proof using automatic theorem provers" Keyword.diag
|
blanchet@36394
|
399 |
parse_sledgehammer_command
|
blanchet@35961
|
400 |
val _ =
|
wenzelm@36970
|
401 |
Outer_Syntax.command sledgehammer_paramsN
|
wenzelm@36970
|
402 |
"set and display the default parameters for Sledgehammer" Keyword.thy_decl
|
blanchet@36394
|
403 |
parse_sledgehammer_params_command
|
blanchet@36394
|
404 |
|
blanchet@43861
|
405 |
fun try_sledgehammer auto state =
|
blanchet@43861
|
406 |
let
|
blanchet@43861
|
407 |
val ctxt = Proof.context_of state
|
blanchet@43862
|
408 |
val mode = if auto then Auto_Try else Try
|
blanchet@43861
|
409 |
val i = 1
|
blanchet@43861
|
410 |
in
|
blanchet@43862
|
411 |
run_sledgehammer (get_params mode ctxt []) mode i no_relevance_override
|
blanchet@43861
|
412 |
(minimize_command [] i) state
|
blanchet@41175
|
413 |
end
|
blanchet@39564
|
414 |
|
blanchet@43865
|
415 |
val setup = Try.register_tool (sledgehammerN, (40, auto, try_sledgehammer))
|
blanchet@39564
|
416 |
|
blanchet@35866
|
417 |
end;
|