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(* Title: HOL/Tools/Sledgehammer/sledgehammer_run.ML
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wenzelm@28477
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Author: Fabian Immler, TU Muenchen
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wenzelm@32996
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Author: Makarius
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Author: Jasmin Blanchette, TU Muenchen
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wenzelm@28477
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Sledgehammer's heart.
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*)
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signature SLEDGEHAMMER_RUN =
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sig
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type minimize_command = ATP_Proof_Reconstruct.minimize_command
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type relevance_override = Sledgehammer_Filter.relevance_override
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type mode = Sledgehammer_Provers.mode
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type params = Sledgehammer_Provers.params
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type prover = Sledgehammer_Provers.prover
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val someN : string
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val noneN : string
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val timeoutN : string
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val unknownN : string
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val auto_minimize_min_facts : int Config.T
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val auto_minimize_max_time : real Config.T
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val get_minimizing_prover : Proof.context -> mode -> string -> prover
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val run_sledgehammer :
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params -> mode -> int -> relevance_override
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-> ((string * string list) list -> string -> minimize_command)
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-> Proof.state -> bool * (string * Proof.state)
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end;
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structure Sledgehammer_Run : SLEDGEHAMMER_RUN =
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struct
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open ATP_Util
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open ATP_Problem_Generate
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open ATP_Proof_Reconstruct
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open Sledgehammer_Util
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open Sledgehammer_Filter
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open Sledgehammer_Provers
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open Sledgehammer_Minimize
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val someN = "some"
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val noneN = "none"
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val timeoutN = "timeout"
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val unknownN = "unknown"
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val ordered_outcome_codes = [someN, unknownN, timeoutN, noneN]
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fun max_outcome_code codes =
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NONE
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|> fold (fn candidate =>
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fn accum as SOME _ => accum
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| NONE => if member (op =) codes candidate then SOME candidate
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else NONE)
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ordered_outcome_codes
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|> the_default unknownN
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fun prover_description ctxt ({verbose, blocking, ...} : params) name num_facts i
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n goal =
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(name,
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(if verbose then
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" with " ^ string_of_int num_facts ^ " fact" ^ plural_s num_facts
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else
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"") ^
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" on " ^ (if n = 1 then "goal" else "subgoal " ^ string_of_int i) ^
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(if blocking then "."
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else "\n" ^ Syntax.string_of_term ctxt (Thm.term_of (Thm.cprem_of goal i))))
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val auto_minimize_min_facts =
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Attrib.setup_config_int @{binding sledgehammer_auto_minimize_min_facts}
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(fn generic => Config.get_generic generic binary_min_facts)
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val auto_minimize_max_time =
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Attrib.setup_config_real @{binding sledgehammer_auto_minimize_max_time}
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(K 5.0)
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fun adjust_reconstructor_params override_params
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({debug, verbose, overlord, blocking, provers, type_enc, strict,
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lam_trans, relevance_thresholds, max_relevant, max_mono_iters,
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max_new_mono_instances, isar_proof, isar_shrink_factor, slice,
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minimize, timeout, preplay_timeout, expect} : params) =
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let
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fun lookup_override name default_value =
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case AList.lookup (op =) override_params name of
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SOME [s] => SOME s
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| _ => default_value
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(* Only those options that reconstructors are interested in are considered
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here. *)
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val type_enc = lookup_override "type_enc" type_enc
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val lam_trans = lookup_override "lam_trans" lam_trans
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in
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{debug = debug, verbose = verbose, overlord = overlord, blocking = blocking,
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provers = provers, type_enc = type_enc, strict = strict,
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lam_trans = lam_trans, max_relevant = max_relevant,
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relevance_thresholds = relevance_thresholds,
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max_mono_iters = max_mono_iters,
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max_new_mono_instances = max_new_mono_instances, isar_proof = isar_proof,
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isar_shrink_factor = isar_shrink_factor, slice = slice,
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minimize = minimize, timeout = timeout, preplay_timeout = preplay_timeout,
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expect = expect}
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end
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fun minimize ctxt mode name
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(params as {debug, verbose, isar_proof, minimize, ...})
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({state, subgoal, subgoal_count, facts, ...} : prover_problem)
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(result as {outcome, used_facts, run_time, preplay, message,
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message_tail} : prover_result) =
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if is_some outcome orelse null used_facts then
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result
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else
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let
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val num_facts = length used_facts
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val ((perhaps_minimize, (minimize_name, params)), preplay) =
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if mode = Normal then
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if num_facts >= Config.get ctxt auto_minimize_min_facts then
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((true, (name, params)), preplay)
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else
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let
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fun can_min_fast_enough time =
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0.001
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* Real.fromInt ((num_facts + 1) * Time.toMilliseconds time)
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<= Config.get ctxt auto_minimize_max_time
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fun prover_fast_enough () = can_min_fast_enough run_time
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in
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if isar_proof then
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((prover_fast_enough (), (name, params)), preplay)
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else
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let val preplay = preplay () in
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(case preplay of
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Played (reconstr, timeout) =>
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if can_min_fast_enough timeout then
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(true, extract_reconstructor params reconstr
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||> (fn override_params =>
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adjust_reconstructor_params
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override_params params))
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else
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(prover_fast_enough (), (name, params))
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| _ => (prover_fast_enough (), (name, params)),
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K preplay)
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end
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end
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else
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((false, (name, params)), preplay)
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val minimize = minimize |> the_default perhaps_minimize
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val (used_facts, (preplay, message, _)) =
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if minimize then
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minimize_facts minimize_name params (not verbose) subgoal
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subgoal_count state
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blanchet@44005
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(filter_used_facts used_facts
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(map (apsnd single o untranslated_fact) facts))
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|>> Option.map (map fst)
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else
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(SOME used_facts, (preplay, message, ""))
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in
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case used_facts of
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SOME used_facts =>
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(if debug andalso not (null used_facts) then
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facts ~~ (0 upto length facts - 1)
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|> map (fn (fact, j) => fact |> untranslated_fact |> apsnd (K j))
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|> filter_used_facts used_facts
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|> map (fn ((name, _), j) => name ^ "@" ^ string_of_int j)
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|> commas
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|> enclose ("Fact" ^ plural_s (length facts) ^ " in " ^ quote name ^
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" proof (of " ^ string_of_int (length facts) ^ "): ") "."
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|> Output.urgent_message
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else
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();
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{outcome = NONE, used_facts = used_facts, run_time = run_time,
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preplay = preplay, message = message, message_tail = message_tail})
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| NONE => result
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end
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fun get_minimizing_prover ctxt mode name params minimize_command problem =
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get_prover ctxt mode name params minimize_command problem
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|> minimize ctxt mode name params problem
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nik@45450
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fun is_induction_fact (Untranslated_Fact ((_, Induction), _)) = true
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nik@45450
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| is_induction_fact _ = false
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nik@45450
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fun launch_prover (params as {debug, verbose, blocking, max_relevant, slice,
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timeout, expect, ...})
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mode minimize_command only
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{state, goal, subgoal, subgoal_count, facts, smt_filter} name =
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let
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val ctxt = Proof.context_of state
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val hard_timeout = Time.+ (timeout, timeout)
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val birth_time = Time.now ()
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val death_time = Time.+ (birth_time, hard_timeout)
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val max_relevant =
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max_relevant
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|> the_default (default_max_relevant_for_prover ctxt slice name)
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val num_facts = length facts |> not only ? Integer.min max_relevant
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fun desc () =
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prover_description ctxt params name num_facts subgoal subgoal_count goal
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val problem =
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nik@45449
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let
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nik@45450
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val filter_induction = filter_out is_induction_fact
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nik@45449
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in {state = state, goal = goal, subgoal = subgoal,
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nik@45449
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subgoal_count = subgoal_count, facts =
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nik@45450
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((Sledgehammer_Provers.is_ho_atp ctxt name |> not) ? filter_induction)
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nik@45450
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facts
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|> take num_facts,
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smt_filter = smt_filter}
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end
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fun really_go () =
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problem
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|> get_minimizing_prover ctxt mode name params minimize_command
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|> (fn {outcome, preplay, message, message_tail, ...} =>
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(if outcome = SOME ATP_Proof.TimedOut then timeoutN
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else if is_some outcome then noneN
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else someN, fn () => message (preplay ()) ^ message_tail))
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fun go () =
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let
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val (outcome_code, message) =
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if debug then
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really_go ()
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else
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blanchet@41337
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(really_go ()
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blanchet@43893
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handle ERROR msg => (unknownN, fn () => "Error: " ^ msg ^ "\n")
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blanchet@41337
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| exn =>
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blanchet@41337
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if Exn.is_interrupt exn then
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blanchet@41337
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reraise exn
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blanchet@41337
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else
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blanchet@43893
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(unknownN, fn () => "Internal error:\n" ^
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blanchet@43893
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ML_Compiler.exn_message exn ^ "\n"))
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blanchet@41337
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val _ =
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blanchet@41390
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(* The "expect" argument is deliberately ignored if the prover is
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blanchet@41390
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missing so that the "Metis_Examples" can be processed on any
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blanchet@41390
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machine. *)
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blanchet@41390
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if expect = "" orelse outcome_code = expect orelse
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blanchet@41390
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not (is_prover_installed ctxt name) then
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blanchet@41337
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()
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blanchet@41337
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else if blocking then
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blanchet@41337
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error ("Unexpected outcome: " ^ quote outcome_code ^ ".")
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blanchet@41337
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else
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blanchet@41337
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warning ("Unexpected outcome: " ^ quote outcome_code ^ ".");
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blanchet@43846
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in (outcome_code, message) end
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blanchet@41337
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in
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blanchet@43862
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if mode = Auto_Try then
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blanchet@43847
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let val (outcome_code, message) = TimeLimit.timeLimit timeout go () in
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blanchet@43847
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(outcome_code,
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blanchet@43847
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state
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blanchet@43847
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|> outcome_code = someN
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blanchet@43847
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? Proof.goal_message (fn () =>
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blanchet@43847
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[Pretty.str "",
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wenzelm@46537
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Pretty.mark Isabelle_Markup.hilite (Pretty.str (message ()))]
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blanchet@43847
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|> Pretty.chunks))
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blanchet@41337
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end
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blanchet@41337
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else if blocking then
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blanchet@43847
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let
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blanchet@43847
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val (outcome_code, message) = TimeLimit.timeLimit hard_timeout go ()
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blanchet@43847
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in
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blanchet@43899
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(if outcome_code = someN orelse mode = Normal then
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blanchet@43899
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quote name ^ ": " ^ message ()
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blanchet@43899
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else
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blanchet@43899
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"")
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blanchet@43846
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|> Async_Manager.break_into_chunks
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blanchet@43846
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|> List.app Output.urgent_message;
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blanchet@43847
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(outcome_code, state)
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blanchet@41337
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end
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blanchet@41337
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else
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blanchet@43847
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(Async_Manager.launch das_tool birth_time death_time (desc ())
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blanchet@43893
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((fn (outcome_code, message) =>
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blanchet@43900
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(verbose orelse outcome_code = someN,
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blanchet@43900
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message ())) o go);
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blanchet@43847
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(unknownN, state))
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blanchet@41337
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end
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blanchet@41337
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blanchet@41483
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fun class_of_smt_solver ctxt name =
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blanchet@41483
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ctxt |> select_smt_solver name
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blanchet@41483
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|> SMT_Config.solver_class_of |> SMT_Utils.string_of_class
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blanchet@41483
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blanchet@43884
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(* Makes backtraces more transparent and might well be more efficient as
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blanchet@43884
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well. *)
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blanchet@41483
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fun smart_par_list_map _ [] = []
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blanchet@41483
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| smart_par_list_map f [x] = [f x]
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blanchet@41483
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| smart_par_list_map f xs = Par_List.map f xs
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blanchet@41483
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blanchet@41502
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fun dest_SMT_Weighted_Fact (SMT_Weighted_Fact p) = p
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blanchet@41502
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| dest_SMT_Weighted_Fact _ = raise Fail "dest_SMT_Weighted_Fact"
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blanchet@41502
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blanchet@43862
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val auto_try_max_relevant_divisor = 2 (* FUDGE *)
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blanchet@40241
|
281 |
|
blanchet@43787
|
282 |
fun run_sledgehammer (params as {debug, verbose, blocking, provers,
|
blanchet@46577
|
283 |
relevance_thresholds, max_relevant, slice,
|
blanchet@43787
|
284 |
timeout, ...})
|
blanchet@43862
|
285 |
mode i (relevance_override as {only, ...}) minimize_command state =
|
blanchet@40240
|
286 |
if null provers then
|
blanchet@40240
|
287 |
error "No prover is set."
|
blanchet@39564
|
288 |
else case subgoal_count state of
|
blanchet@43861
|
289 |
0 => (Output.urgent_message "No subgoal!"; (false, (noneN, state)))
|
blanchet@39564
|
290 |
| n =>
|
blanchet@39564
|
291 |
let
|
blanchet@39610
|
292 |
val _ = Proof.assert_backward state
|
blanchet@43862
|
293 |
val print = if mode = Normal then Output.urgent_message else K ()
|
blanchet@41483
|
294 |
val state =
|
blanchet@41483
|
295 |
state |> Proof.map_context (Config.put SMT_Config.verbose debug)
|
blanchet@40441
|
296 |
val ctxt = Proof.context_of state
|
blanchet@40441
|
297 |
val {facts = chained_ths, goal, ...} = Proof.goal state
|
blanchet@43884
|
298 |
val chained_ths = chained_ths |> normalize_chained_theorems
|
blanchet@43845
|
299 |
val (_, hyp_ts, concl_t) = strip_subgoal ctxt goal i
|
blanchet@45483
|
300 |
val ho_atp = exists (Sledgehammer_Provers.is_ho_atp ctxt) provers
|
blanchet@45483
|
301 |
val facts =
|
blanchet@45483
|
302 |
nearly_all_facts ctxt ho_atp relevance_override chained_ths hyp_ts
|
blanchet@45483
|
303 |
concl_t
|
nik@45450
|
304 |
val _ = () |> not blocking ? kill_provers
|
blanchet@42591
|
305 |
val _ = case find_first (not o is_prover_supported ctxt) provers of
|
blanchet@41189
|
306 |
SOME name => error ("No such prover: " ^ name ^ ".")
|
blanchet@41189
|
307 |
| NONE => ()
|
blanchet@42644
|
308 |
val _ = print "Sledgehammering..."
|
blanchet@43785
|
309 |
val (smts, (ueq_atps, full_atps)) =
|
blanchet@43785
|
310 |
provers |> List.partition (is_smt_prover ctxt)
|
blanchet@43785
|
311 |
||> List.partition (is_unit_equational_atp ctxt)
|
blanchet@42612
|
312 |
fun launch_provers state get_facts translate maybe_smt_filter provers =
|
blanchet@41502
|
313 |
let
|
blanchet@41502
|
314 |
val facts = get_facts ()
|
blanchet@41502
|
315 |
val num_facts = length facts
|
blanchet@41502
|
316 |
val facts = facts ~~ (0 upto num_facts - 1)
|
blanchet@41502
|
317 |
|> map (translate num_facts)
|
blanchet@41502
|
318 |
val problem =
|
blanchet@41502
|
319 |
{state = state, goal = goal, subgoal = i, subgoal_count = n,
|
blanchet@41502
|
320 |
facts = facts,
|
blanchet@42612
|
321 |
smt_filter = maybe_smt_filter
|
blanchet@41502
|
322 |
(fn () => map_filter (try dest_SMT_Weighted_Fact) facts) i}
|
blanchet@43862
|
323 |
val launch = launch_prover params mode minimize_command only
|
blanchet@41502
|
324 |
in
|
blanchet@43862
|
325 |
if mode = Auto_Try orelse mode = Try then
|
blanchet@43861
|
326 |
(unknownN, state)
|
blanchet@43862
|
327 |
|> fold (fn prover => fn accum as (outcome_code, _) =>
|
blanchet@43861
|
328 |
if outcome_code = someN then accum
|
blanchet@43861
|
329 |
else launch problem prover)
|
blanchet@43861
|
330 |
provers
|
blanchet@41502
|
331 |
else
|
blanchet@41502
|
332 |
provers
|
blanchet@43861
|
333 |
|> (if blocking then smart_par_list_map else map)
|
blanchet@43861
|
334 |
(launch problem #> fst)
|
blanchet@43861
|
335 |
|> max_outcome_code |> rpair state
|
blanchet@41502
|
336 |
end
|
blanchet@43793
|
337 |
fun get_facts label is_appropriate_prop relevance_fudge provers =
|
blanchet@41483
|
338 |
let
|
blanchet@41483
|
339 |
val max_max_relevant =
|
blanchet@41483
|
340 |
case max_relevant of
|
blanchet@41483
|
341 |
SOME n => n
|
blanchet@41483
|
342 |
| NONE =>
|
blanchet@43314
|
343 |
0 |> fold (Integer.max
|
blanchet@46577
|
344 |
o default_max_relevant_for_prover ctxt slice)
|
blanchet@41483
|
345 |
provers
|
blanchet@43862
|
346 |
|> mode = Auto_Try
|
blanchet@43862
|
347 |
? (fn n => n div auto_try_max_relevant_divisor)
|
blanchet@41483
|
348 |
val is_built_in_const =
|
blanchet@41483
|
349 |
is_built_in_const_for_prover ctxt (hd provers)
|
blanchet@41483
|
350 |
in
|
blanchet@44217
|
351 |
facts
|
blanchet@44217
|
352 |
|> (case is_appropriate_prop of
|
blanchet@44217
|
353 |
SOME is_app => filter (is_app o prop_of o snd)
|
blanchet@44217
|
354 |
| NONE => I)
|
blanchet@45483
|
355 |
|> relevant_facts ctxt relevance_thresholds max_max_relevant
|
blanchet@45483
|
356 |
is_built_in_const relevance_fudge relevance_override
|
blanchet@45483
|
357 |
chained_ths hyp_ts concl_t
|
blanchet@41483
|
358 |
|> tap (fn facts =>
|
blanchet@41483
|
359 |
if debug then
|
blanchet@41483
|
360 |
label ^ plural_s (length provers) ^ ": " ^
|
blanchet@41483
|
361 |
(if null facts then
|
blanchet@41483
|
362 |
"Found no relevant facts."
|
blanchet@41483
|
363 |
else
|
blanchet@41483
|
364 |
"Including (up to) " ^ string_of_int (length facts) ^
|
blanchet@41483
|
365 |
" relevant fact" ^ plural_s (length facts) ^ ":\n" ^
|
blanchet@41483
|
366 |
(facts |> map (fst o fst) |> space_implode " ") ^ ".")
|
blanchet@42644
|
367 |
|> print
|
blanchet@41483
|
368 |
else
|
blanchet@41483
|
369 |
())
|
blanchet@41483
|
370 |
end
|
blanchet@43793
|
371 |
fun launch_atps label is_appropriate_prop atps accum =
|
blanchet@43787
|
372 |
if null atps then
|
blanchet@41502
|
373 |
accum
|
blanchet@44217
|
374 |
else if is_some is_appropriate_prop andalso
|
blanchet@44217
|
375 |
not (the is_appropriate_prop concl_t) then
|
blanchet@43787
|
376 |
(if verbose orelse length atps = length provers then
|
blanchet@43787
|
377 |
"Goal outside the scope of " ^
|
blanchet@43787
|
378 |
space_implode " " (serial_commas "and" (map quote atps)) ^ "."
|
blanchet@43787
|
379 |
|> Output.urgent_message
|
blanchet@43787
|
380 |
else
|
blanchet@43787
|
381 |
();
|
blanchet@43787
|
382 |
accum)
|
blanchet@41502
|
383 |
else
|
blanchet@43785
|
384 |
launch_provers state
|
blanchet@43793
|
385 |
(get_facts label is_appropriate_prop atp_relevance_fudge o K atps)
|
blanchet@43785
|
386 |
(K (Untranslated_Fact o fst)) (K (K NONE)) atps
|
blanchet@42617
|
387 |
fun launch_smts accum =
|
blanchet@42617
|
388 |
if null smts then
|
blanchet@41483
|
389 |
accum
|
blanchet@41483
|
390 |
else
|
blanchet@41483
|
391 |
let
|
blanchet@44217
|
392 |
val facts = get_facts "SMT solver" NONE smt_relevance_fudge smts
|
blanchet@43517
|
393 |
val weight = SMT_Weighted_Fact oo weight_smt_fact ctxt
|
blanchet@42612
|
394 |
fun smt_filter facts =
|
blanchet@42659
|
395 |
(if debug then curry (op o) SOME
|
blanchet@42659
|
396 |
else TimeLimit.timeLimit timeout o try)
|
boehmes@41680
|
397 |
(SMT_Solver.smt_filter_preprocess state (facts ()))
|
blanchet@41483
|
398 |
in
|
blanchet@41483
|
399 |
smts |> map (`(class_of_smt_solver ctxt))
|
blanchet@41483
|
400 |
|> AList.group (op =)
|
blanchet@43861
|
401 |
|> map (snd #> launch_provers state (K facts) weight smt_filter
|
blanchet@43861
|
402 |
#> fst)
|
blanchet@43861
|
403 |
|> max_outcome_code |> rpair state
|
blanchet@41483
|
404 |
end
|
blanchet@44217
|
405 |
val launch_full_atps = launch_atps "ATP" NONE full_atps
|
blanchet@43785
|
406 |
val launch_ueq_atps =
|
blanchet@44217
|
407 |
launch_atps "Unit equational provers" (SOME is_unit_equality) ueq_atps
|
blanchet@41510
|
408 |
fun launch_atps_and_smt_solvers () =
|
blanchet@43884
|
409 |
[launch_full_atps, launch_smts, launch_ueq_atps]
|
blanchet@43862
|
410 |
|> smart_par_list_map (fn f => ignore (f (unknownN, state)))
|
blanchet@42644
|
411 |
handle ERROR msg => (print ("Error: " ^ msg); error msg)
|
blanchet@43862
|
412 |
fun maybe f (accum as (outcome_code, _)) =
|
blanchet@43862
|
413 |
accum |> (mode = Normal orelse outcome_code <> someN) ? f
|
blanchet@40241
|
414 |
in
|
blanchet@43861
|
415 |
(unknownN, state)
|
blanchet@43785
|
416 |
|> (if blocking then
|
blanchet@43862
|
417 |
launch_full_atps
|
blanchet@43862
|
418 |
#> mode <> Auto_Try ? (maybe launch_ueq_atps #> maybe launch_smts)
|
blanchet@43785
|
419 |
else
|
blanchet@43785
|
420 |
(fn p => Future.fork (tap launch_atps_and_smt_solvers) |> K p))
|
blanchet@42644
|
421 |
handle TimeLimit.TimeOut =>
|
blanchet@43861
|
422 |
(print "Sledgehammer ran out of time."; (unknownN, state))
|
blanchet@40241
|
423 |
end
|
blanchet@43861
|
424 |
|> `(fn (outcome_code, _) => outcome_code = someN)
|
blanchet@38290
|
425 |
|
wenzelm@28582
|
426 |
end;
|