author | blanchet |
Wed, 30 Jul 2014 23:52:56 +0200 | |
changeset 57724 | 9ea51eddf81c |
parent 57723 | 668322cd58f4 |
child 57732 | e1b2442dc629 |
permissions | -rw-r--r-- |
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(* Title: HOL/Tools/Sledgehammer/sledgehammer_prover.ML |
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Author: Fabian Immler, TU Muenchen |
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Author: Makarius |
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Author: Jasmin Blanchette, TU Muenchen |
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Generic prover abstraction for Sledgehammer. |
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*) |
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signature SLEDGEHAMMER_PROVER = |
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sig |
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type atp_failure = ATP_Proof.atp_failure |
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type stature = ATP_Problem_Generate.stature |
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type type_enc = ATP_Problem_Generate.type_enc |
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type fact = Sledgehammer_Fact.fact |
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type proof_method = Sledgehammer_Proof_Methods.proof_method |
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type play_outcome = Sledgehammer_Proof_Methods.play_outcome |
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type minimize_command = Sledgehammer_Proof_Methods.minimize_command |
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|
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datatype mode = Auto_Try | Try | Normal | MaSh | Auto_Minimize | Minimize |
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type params = |
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{debug : bool, |
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verbose : bool, |
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overlord : bool, |
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spy : bool, |
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blocking : bool, |
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provers : string list, |
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type_enc : string option, |
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strict : bool, |
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lam_trans : string option, |
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uncurried_aliases : bool option, |
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learn : bool, |
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fact_filter : string option, |
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max_facts : int option, |
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fact_thresholds : real * real, |
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max_mono_iters : int option, |
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max_new_mono_instances : int option, |
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isar_proofs : bool option, |
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compress : real, |
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try0 : bool, |
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smt_proofs : bool option, |
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slice : bool, |
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minimize : bool, |
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timeout : Time.time, |
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preplay_timeout : Time.time, |
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expect : string} |
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type prover_problem = |
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{comment : string, |
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state : Proof.state, |
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goal : thm, |
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subgoal : int, |
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subgoal_count : int, |
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factss : (string * fact list) list} |
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|
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type prover_result = |
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{outcome : atp_failure option, |
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used_facts : (string * stature) list, |
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used_from : fact list, |
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run_time : Time.time, |
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preplay : (proof_method * play_outcome) Lazy.lazy, |
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message : proof_method * play_outcome -> string, |
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message_tail : string} |
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type prover = |
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params -> ((string * string list) list -> string -> minimize_command) -> prover_problem -> |
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prover_result |
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val SledgehammerN : string |
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val str_of_mode : mode -> string |
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val smtN : string |
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val overlord_file_location_of_prover : string -> string * string |
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val proof_banner : mode -> string -> string |
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val extract_proof_method : params -> proof_method -> string * (string * string list) list |
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val is_proof_method : string -> bool |
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val is_atp : theory -> string -> bool |
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val bunch_of_proof_methods : bool -> bool -> string -> proof_method list |
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val is_fact_chained : (('a * stature) * 'b) -> bool |
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val filter_used_facts : bool -> (''a * stature) list -> ((''a * stature) * 'b) list -> |
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((''a * stature) * 'b) list |
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val play_one_line_proof : mode -> Time.time -> ((string * 'a) * thm) list -> Proof.state -> int -> |
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proof_method -> proof_method list -> proof_method * play_outcome |
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val isar_supported_prover_of : theory -> string -> string |
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val choose_minimize_command : theory -> params -> ((string * string list) list -> string -> 'a) -> |
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string -> proof_method * play_outcome -> 'a |
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val repair_monomorph_context : int option -> int -> int option -> int -> Proof.context -> |
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Proof.context |
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val supported_provers : Proof.context -> unit |
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val kill_provers : unit -> unit |
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val running_provers : unit -> unit |
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val messages : int option -> unit |
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end; |
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structure Sledgehammer_Prover : SLEDGEHAMMER_PROVER = |
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struct |
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open ATP_Proof |
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open ATP_Util |
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open ATP_Systems |
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open ATP_Problem |
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open ATP_Problem_Generate |
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open ATP_Proof_Reconstruct |
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open Metis_Tactic |
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open Sledgehammer_Fact |
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open Sledgehammer_Proof_Methods |
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open Sledgehammer_Isar_Proof |
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open Sledgehammer_Isar_Preplay |
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(* Identifier that distinguishes Sledgehammer from other tools that could use |
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"Async_Manager". *) |
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val SledgehammerN = "Sledgehammer" |
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datatype mode = Auto_Try | Try | Normal | MaSh | Auto_Minimize | Minimize |
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fun str_of_mode Auto_Try = "Auto Try" |
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| str_of_mode Try = "Try" |
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| str_of_mode Normal = "Normal" |
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| str_of_mode MaSh = "MaSh" |
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| str_of_mode Auto_Minimize = "Auto_Minimize" |
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| str_of_mode Minimize = "Minimize" |
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||
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val smtN = "smt" |
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val proof_method_names = [metisN, smtN] |
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val is_proof_method = member (op =) proof_method_names |
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val is_atp = member (op =) o supported_atps |
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type params = |
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{debug : bool, |
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verbose : bool, |
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overlord : bool, |
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spy : bool, |
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blocking : bool, |
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provers : string list, |
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type_enc : string option, |
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strict : bool, |
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lam_trans : string option, |
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uncurried_aliases : bool option, |
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learn : bool, |
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fact_filter : string option, |
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max_facts : int option, |
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fact_thresholds : real * real, |
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max_mono_iters : int option, |
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max_new_mono_instances : int option, |
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isar_proofs : bool option, |
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compress : real, |
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try0 : bool, |
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smt_proofs : bool option, |
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slice : bool, |
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minimize : bool, |
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timeout : Time.time, |
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preplay_timeout : Time.time, |
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expect : string} |
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type prover_problem = |
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{comment : string, |
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state : Proof.state, |
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goal : thm, |
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subgoal : int, |
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subgoal_count : int, |
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factss : (string * fact list) list} |
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type prover_result = |
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{outcome : atp_failure option, |
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used_facts : (string * stature) list, |
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used_from : fact list, |
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run_time : Time.time, |
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preplay : (proof_method * play_outcome) Lazy.lazy, |
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message : proof_method * play_outcome -> string, |
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message_tail : string} |
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type prover = |
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params -> ((string * string list) list -> string -> minimize_command) |
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-> prover_problem -> prover_result |
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fun overlord_file_location_of_prover prover = (getenv "ISABELLE_HOME_USER", "prob_" ^ prover) |
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|
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fun proof_banner mode name = |
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(case mode of |
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Auto_Try => "Auto Sledgehammer (" ^ quote name ^ ") found a proof" |
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| Try => "Sledgehammer (" ^ quote name ^ ") found a proof" |
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| _ => "Try this") |
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fun bunch_of_proof_methods smt_proofs needs_full_types desperate_lam_trans = |
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[Simp_Method, Auto_Method, Fastforce_Method, Blast_Method, Meson_Method, |
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Metis_Method (if needs_full_types then SOME full_typesN else NONE, NONE), |
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Force_Method, Linarith_Method, Presburger_Method] @ |
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(if needs_full_types then |
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[Metis_Method (SOME really_full_type_enc, NONE), |
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Metis_Method (SOME full_typesN, SOME desperate_lam_trans), |
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Metis_Method (SOME really_full_type_enc, SOME desperate_lam_trans)] |
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else |
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[Metis_Method (SOME full_typesN, NONE), |
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Metis_Method (SOME no_typesN, SOME desperate_lam_trans), |
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Metis_Method (SOME really_full_type_enc, SOME desperate_lam_trans)]) @ |
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(if smt_proofs then [SMT2_Method] else []) |
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fun extract_proof_method ({type_enc, lam_trans, ...} : params) |
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(Metis_Method (type_enc', lam_trans')) = |
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let |
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val override_params = |
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(if is_none type_enc' andalso is_none type_enc then [] |
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else [("type_enc", [hd (unalias_type_enc (type_enc' |> the_default partial_typesN))])]) @ |
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(if is_none lam_trans' andalso is_none lam_trans then [] |
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else [("lam_trans", [lam_trans' |> the_default default_metis_lam_trans])]) |
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in (metisN, override_params) end |
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| extract_proof_method _ SMT2_Method = (smtN, []) |
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fun preplay_methods timeout facts meths state i = |
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let |
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val {context = ctxt, facts = chained, goal} = Proof.goal state |
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val (_, hyp_ts, concl_t) = strip_subgoal goal i ctxt |
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val step = |
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Prove ([], [], ("", 0), Logic.list_implies (map prop_of chained @ hyp_ts, concl_t), [], |
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([], facts), meths, "") |
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in |
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preplay_isar_step ctxt timeout [] step |
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end |
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fun is_fact_chained ((_, (sc, _)), _) = sc = Chained |
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fun filter_used_facts keep_chained used = |
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filter ((member (op =) used o fst) orf (if keep_chained then is_fact_chained else K false)) |
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|
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fun play_one_line_proof mode timeout used_facts state i preferred (meths as meth :: _) = |
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let |
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fun dont_know () = |
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(if member (op =) meths preferred then preferred else meth, Play_Timed_Out Time.zeroTime) |
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in |
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if timeout = Time.zeroTime then |
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dont_know () |
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else |
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let |
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val _ = if mode = Minimize then Output.urgent_message "Preplaying proof..." else () |
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val gfs = used_facts |> map (fst o fst) |> sort string_ord |
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in |
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(case preplay_methods timeout gfs meths state i of |
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res :: _ => res |
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| [] => dont_know ()) |
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end |
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end |
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||
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val canonical_isar_supported_prover = eN |
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val z3N = "z3" |
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|
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fun isar_supported_prover_of thy name = |
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if is_atp thy name orelse name = z3N then name |
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else if is_atp_installed thy canonical_isar_supported_prover then canonical_isar_supported_prover |
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else name |
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|
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(* FIXME: See the analogous logic in the function "maybe_minimize" in |
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"sledgehammer_prover_minimize.ML". *) |
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fun choose_minimize_command thy (params as {isar_proofs, ...}) minimize_command name preplay = |
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let |
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val maybe_isar_name = name |> isar_proofs = SOME true ? isar_supported_prover_of thy |
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val (min_name, override_params) = |
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(case preplay of |
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(meth as Metis_Method _, Played _) => |
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if isar_proofs = SOME true then (maybe_isar_name, []) else extract_proof_method params meth |
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| _ => (maybe_isar_name, [])) |
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in minimize_command override_params min_name end |
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|
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val max_fact_instances = 10 (* FUDGE *) |
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|
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fun repair_monomorph_context max_iters best_max_iters max_new_instances best_max_new_instances = |
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Config.put Monomorph.max_rounds (max_iters |> the_default best_max_iters) |
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#> Config.put Monomorph.max_new_instances |
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(max_new_instances |> the_default best_max_new_instances) |
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#> Config.put Monomorph.max_thm_instances max_fact_instances |
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|
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fun supported_provers ctxt = |
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let |
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val thy = Proof_Context.theory_of ctxt |
276 |
val (remote_provers, local_provers) = |
|
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proof_method_names @ |
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sort_strings (supported_atps thy) @ |
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sort_strings (SMT2_Config.available_solvers_of ctxt) |
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|> List.partition (String.isPrefix remote_prefix) |
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in |
57056 | 282 |
Output.urgent_message ("Supported provers: " ^ commas (local_provers @ remote_provers) ^ ".") |
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end |
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284 |
|
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fun kill_provers () = Async_Manager.kill_threads SledgehammerN "prover" |
286 |
fun running_provers () = Async_Manager.running_threads SledgehammerN "prover" |
|
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val messages = Async_Manager.thread_messages SledgehammerN "prover" |
|
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||
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end; |