--- a/src/HOL/Tools/Sledgehammer/sledgehammer.ML Wed Dec 08 18:07:04 2010 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,730 +0,0 @@
-(* Title: HOL/Tools/Sledgehammer/sledgehammer.ML
- Author: Fabian Immler, TU Muenchen
- Author: Makarius
- Author: Jasmin Blanchette, TU Muenchen
-
-Sledgehammer's heart.
-*)
-
-signature SLEDGEHAMMER =
-sig
- type failure = ATP_Proof.failure
- type locality = Sledgehammer_Filter.locality
- type relevance_fudge = Sledgehammer_Filter.relevance_fudge
- type relevance_override = Sledgehammer_Filter.relevance_override
- type translated_formula = Sledgehammer_ATP_Translate.translated_formula
- type minimize_command = Sledgehammer_ATP_Reconstruct.minimize_command
-
- type params =
- {blocking: bool,
- debug: bool,
- verbose: bool,
- overlord: bool,
- provers: string list,
- full_types: bool,
- explicit_apply: bool,
- relevance_thresholds: real * real,
- max_relevant: int option,
- isar_proof: bool,
- isar_shrink_factor: int,
- timeout: Time.time,
- expect: string}
-
- datatype fact =
- Untranslated of (string * locality) * thm |
- Translated of term * ((string * locality) * translated_formula) option
-
- type prover_problem =
- {state: Proof.state,
- goal: thm,
- subgoal: int,
- subgoal_count: int,
- facts: fact list}
-
- type prover_result =
- {outcome: failure option,
- used_facts: (string * locality) list,
- run_time_in_msecs: int option,
- message: string}
-
- type prover = params -> minimize_command -> prover_problem -> prover_result
-
- val is_prover_available : Proof.context -> string -> bool
- val is_prover_installed : Proof.context -> string -> bool
- val default_max_relevant_for_prover : Proof.context -> string -> int
- val is_built_in_const_for_prover :
- Proof.context -> string -> string * typ -> term list -> bool
- val relevance_fudge_for_prover : Proof.context -> string -> relevance_fudge
- val dest_dir : string Config.T
- val problem_prefix : string Config.T
- val measure_run_time : bool Config.T
- val available_provers : Proof.context -> unit
- val kill_provers : unit -> unit
- val running_provers : unit -> unit
- val messages : int option -> unit
- val get_prover : Proof.context -> bool -> string -> prover
- val run_sledgehammer :
- params -> bool -> int -> relevance_override -> (string -> minimize_command)
- -> Proof.state -> bool * Proof.state
- val setup : theory -> theory
-end;
-
-structure Sledgehammer : SLEDGEHAMMER =
-struct
-
-open ATP_Problem
-open ATP_Proof
-open ATP_Systems
-open Metis_Translate
-open Sledgehammer_Util
-open Sledgehammer_Filter
-open Sledgehammer_ATP_Translate
-open Sledgehammer_ATP_Reconstruct
-
-
-(** The Sledgehammer **)
-
-(* Identifier to distinguish Sledgehammer from other tools using
- "Async_Manager". *)
-val das_Tool = "Sledgehammer"
-
-fun is_smt_prover ctxt name =
- let val smts = SMT_Solver.available_solvers_of ctxt in
- case try (unprefix remote_prefix) name of
- SOME suffix => member (op =) smts suffix andalso
- SMT_Solver.is_remotely_available ctxt suffix
- | NONE => member (op =) smts name
- end
-
-fun is_prover_available ctxt name =
- let val thy = ProofContext.theory_of ctxt in
- is_smt_prover ctxt name orelse member (op =) (available_atps thy) name
- end
-
-fun is_prover_installed ctxt name =
- let val thy = ProofContext.theory_of ctxt in
- if is_smt_prover ctxt name then
- String.isPrefix remote_prefix name orelse
- SMT_Solver.is_locally_installed ctxt name
- else
- is_atp_installed thy name
- end
-
-fun available_smt_solvers ctxt =
- let val smts = SMT_Solver.available_solvers_of ctxt in
- smts @ map (prefix remote_prefix)
- (filter (SMT_Solver.is_remotely_available ctxt) smts)
- end
-
-(* FUDGE *)
-val auto_max_relevant_divisor = 2
-
-fun default_max_relevant_for_prover ctxt name =
- let val thy = ProofContext.theory_of ctxt in
- if is_smt_prover ctxt name then
- SMT_Solver.default_max_relevant ctxt
- (perhaps (try (unprefix remote_prefix)) name)
- else
- #default_max_relevant (get_atp thy name)
- end
-
-(* These are typically simplified away by "Meson.presimplify". Equality is
- handled specially via "fequal". *)
-val atp_irrelevant_consts =
- [@{const_name False}, @{const_name True}, @{const_name If}, @{const_name Let},
- @{const_name HOL.eq}]
-
-fun is_built_in_const_for_prover ctxt name (s, T) args =
- if is_smt_prover ctxt name then SMT_Builtin.is_builtin_ext ctxt (s, T) args
- else member (op =) atp_irrelevant_consts s
-
-(* FUDGE *)
-val atp_relevance_fudge =
- {worse_irrel_freq = 100.0,
- higher_order_irrel_weight = 1.05,
- abs_rel_weight = 0.5,
- abs_irrel_weight = 2.0,
- skolem_irrel_weight = 0.75,
- theory_const_rel_weight = 0.5,
- theory_const_irrel_weight = 0.25,
- intro_bonus = 0.15,
- elim_bonus = 0.15,
- simp_bonus = 0.15,
- local_bonus = 0.55,
- assum_bonus = 1.05,
- chained_bonus = 1.5,
- max_imperfect = 11.5,
- max_imperfect_exp = 1.0,
- threshold_divisor = 2.0,
- ridiculous_threshold = 0.1}
-
-(* FUDGE (FIXME) *)
-val smt_relevance_fudge =
- {worse_irrel_freq = #worse_irrel_freq atp_relevance_fudge,
- higher_order_irrel_weight = #higher_order_irrel_weight atp_relevance_fudge,
- abs_rel_weight = #abs_rel_weight atp_relevance_fudge,
- abs_irrel_weight = #abs_irrel_weight atp_relevance_fudge,
- skolem_irrel_weight = #skolem_irrel_weight atp_relevance_fudge,
- theory_const_rel_weight = #theory_const_rel_weight atp_relevance_fudge,
- theory_const_irrel_weight = #theory_const_irrel_weight atp_relevance_fudge,
- intro_bonus = #intro_bonus atp_relevance_fudge,
- elim_bonus = #elim_bonus atp_relevance_fudge,
- simp_bonus = #simp_bonus atp_relevance_fudge,
- local_bonus = #local_bonus atp_relevance_fudge,
- assum_bonus = #assum_bonus atp_relevance_fudge,
- chained_bonus = #chained_bonus atp_relevance_fudge,
- max_imperfect = #max_imperfect atp_relevance_fudge,
- max_imperfect_exp = #max_imperfect_exp atp_relevance_fudge,
- threshold_divisor = #threshold_divisor atp_relevance_fudge,
- ridiculous_threshold = #ridiculous_threshold atp_relevance_fudge}
-
-fun relevance_fudge_for_prover ctxt name =
- if is_smt_prover ctxt name then smt_relevance_fudge else atp_relevance_fudge
-
-fun available_provers ctxt =
- let
- val thy = ProofContext.theory_of ctxt
- val (remote_provers, local_provers) =
- sort_strings (available_atps thy) @
- sort_strings (available_smt_solvers ctxt)
- |> List.partition (String.isPrefix remote_prefix)
- in
- Output.urgent_message ("Available provers: " ^
- commas (local_provers @ remote_provers) ^ ".")
- end
-
-fun kill_provers () = Async_Manager.kill_threads das_Tool "provers"
-fun running_provers () = Async_Manager.running_threads das_Tool "provers"
-val messages = Async_Manager.thread_messages das_Tool "prover"
-
-(** problems, results, ATPs, etc. **)
-
-type params =
- {blocking: bool,
- debug: bool,
- verbose: bool,
- overlord: bool,
- provers: string list,
- full_types: bool,
- explicit_apply: bool,
- relevance_thresholds: real * real,
- max_relevant: int option,
- isar_proof: bool,
- isar_shrink_factor: int,
- timeout: Time.time,
- expect: string}
-
-datatype fact =
- Untranslated of (string * locality) * thm |
- Translated of term * ((string * locality) * translated_formula) option
-
-type prover_problem =
- {state: Proof.state,
- goal: thm,
- subgoal: int,
- subgoal_count: int,
- facts: fact list}
-
-type prover_result =
- {outcome: failure option,
- message: string,
- used_facts: (string * locality) list,
- run_time_in_msecs: int option}
-
-type prover = params -> minimize_command -> prover_problem -> prover_result
-
-(* configuration attributes *)
-
-val (dest_dir, dest_dir_setup) =
- Attrib.config_string "sledgehammer_dest_dir" (K "")
- (* Empty string means create files in Isabelle's temporary files directory. *)
-
-val (problem_prefix, problem_prefix_setup) =
- Attrib.config_string "sledgehammer_problem_prefix" (K "prob")
-
-val (measure_run_time, measure_run_time_setup) =
- Attrib.config_bool "sledgehammer_measure_run_time" (K false)
-
-fun with_path cleanup after f path =
- Exn.capture f path
- |> tap (fn _ => cleanup path)
- |> Exn.release
- |> tap (after path)
-
-fun prover_description ctxt ({blocking, verbose, ...} : params) name num_facts i
- n goal =
- quote name ^
- (if verbose then
- " with " ^ string_of_int num_facts ^ " fact" ^ plural_s num_facts
- else
- "") ^
- " on " ^ (if n = 1 then "goal" else "subgoal " ^ string_of_int i) ^ ":" ^
- (if blocking then
- ""
- else
- "\n" ^ Syntax.string_of_term ctxt (Thm.term_of (Thm.cprem_of goal i)))
-
-fun proof_banner auto =
- if auto then "Auto Sledgehammer found a proof" else "Try this command"
-
-(* generic TPTP-based ATPs *)
-
-fun dest_Untranslated (Untranslated p) = p
- | dest_Untranslated (Translated _) = raise Fail "dest_Untranslated"
-fun translated_fact ctxt (Untranslated p) = translate_fact ctxt p
- | translated_fact _ (Translated p) = p
-fun fact_name (Untranslated ((name, _), _)) = SOME name
- | fact_name (Translated (_, p)) = Option.map (fst o fst) p
-
-fun int_opt_add (SOME m) (SOME n) = SOME (m + n)
- | int_opt_add _ _ = NONE
-
-(* Important messages are important but not so important that users want to see
- them each time. *)
-val important_message_keep_factor = 0.1
-
-fun run_atp auto atp_name
- {exec, required_execs, arguments, has_incomplete_mode, proof_delims,
- known_failures, explicit_forall, use_conjecture_for_hypotheses, ...}
- ({debug, verbose, overlord, full_types, explicit_apply, isar_proof,
- isar_shrink_factor, timeout, ...} : params)
- minimize_command ({state, goal, subgoal, facts, ...} : prover_problem) =
- let
- val ctxt = Proof.context_of state
- val (_, hyp_ts, concl_t) = strip_subgoal goal subgoal
- val facts =
- facts |> map (translated_fact ctxt)
- val dest_dir = if overlord then getenv "ISABELLE_HOME_USER"
- else Config.get ctxt dest_dir
- val problem_prefix = Config.get ctxt problem_prefix
- val problem_file_name =
- Path.basic ((if overlord then "prob_" ^ atp_name
- else problem_prefix ^ serial_string ())
- ^ "_" ^ string_of_int subgoal)
- val problem_path_name =
- if dest_dir = "" then
- File.tmp_path problem_file_name
- else if File.exists (Path.explode dest_dir) then
- Path.append (Path.explode dest_dir) problem_file_name
- else
- error ("No such directory: " ^ quote dest_dir ^ ".")
- val measure_run_time = verbose orelse Config.get ctxt measure_run_time
- val command = Path.explode (getenv (fst exec) ^ "/" ^ snd exec)
- (* write out problem file and call ATP *)
- fun command_line complete timeout probfile =
- let
- val core = File.shell_path command ^ " " ^ arguments complete timeout ^
- " " ^ File.shell_path probfile
- in
- (if measure_run_time then "TIMEFORMAT='%3R'; { time " ^ core ^ " ; }"
- else "exec " ^ core) ^ " 2>&1"
- end
- fun split_time s =
- let
- val split = String.tokens (fn c => str c = "\n");
- val (output, t) = s |> split |> split_last |> apfst cat_lines;
- fun as_num f = f >> (fst o read_int);
- val num = as_num (Scan.many1 Symbol.is_ascii_digit);
- val digit = Scan.one Symbol.is_ascii_digit;
- val num3 = as_num (digit ::: digit ::: (digit >> single));
- val time = num --| Scan.$$ "." -- num3 >> (fn (a, b) => a * 1000 + b);
- val as_time = Scan.read Symbol.stopper time o raw_explode
- in (output, as_time t) end;
- fun run_on probfile =
- case filter (curry (op =) "" o getenv o fst) (exec :: required_execs) of
- (home_var, _) :: _ =>
- error ("The environment variable " ^ quote home_var ^ " is not set.")
- | [] =>
- if File.exists command then
- let
- fun run complete timeout =
- let
- val command = command_line complete timeout probfile
- val ((output, msecs), res_code) =
- bash_output command
- |>> (if overlord then
- prefix ("% " ^ command ^ "\n% " ^ timestamp () ^ "\n")
- else
- I)
- |>> (if measure_run_time then split_time else rpair NONE)
- val (tstplike_proof, outcome) =
- extract_tstplike_proof_and_outcome complete res_code
- proof_delims known_failures output
- in (output, msecs, tstplike_proof, outcome) end
- val readable_names = debug andalso overlord
- val (atp_problem, pool, conjecture_offset, fact_names) =
- prepare_atp_problem ctxt readable_names explicit_forall full_types
- explicit_apply hyp_ts concl_t facts
- val ss = tptp_strings_for_atp_problem use_conjecture_for_hypotheses
- atp_problem
- val _ = File.write_list probfile ss
- val conjecture_shape =
- conjecture_offset + 1 upto conjecture_offset + length hyp_ts + 1
- |> map single
- val run_twice = has_incomplete_mode andalso not auto
- val timer = Timer.startRealTimer ()
- val result =
- run false (if run_twice then
- Time.fromMilliseconds
- (2 * Time.toMilliseconds timeout div 3)
- else
- timeout)
- |> run_twice
- ? (fn (_, msecs0, _, SOME _) =>
- run true (Time.- (timeout, Timer.checkRealTimer timer))
- |> (fn (output, msecs, tstplike_proof, outcome) =>
- (output, int_opt_add msecs0 msecs, tstplike_proof,
- outcome))
- | result => result)
- in ((pool, conjecture_shape, fact_names), result) end
- else
- error ("Bad executable: " ^ Path.implode command ^ ".")
-
- (* If the problem file has not been exported, remove it; otherwise, export
- the proof file too. *)
- fun cleanup probfile =
- if dest_dir = "" then try File.rm probfile else NONE
- fun export probfile (_, (output, _, _, _)) =
- if dest_dir = "" then
- ()
- else
- File.write (Path.explode (Path.implode probfile ^ "_proof")) output
- val ((pool, conjecture_shape, fact_names),
- (output, msecs, tstplike_proof, outcome)) =
- with_path cleanup export run_on problem_path_name
- val (conjecture_shape, fact_names) =
- repair_conjecture_shape_and_fact_names output conjecture_shape fact_names
- val important_message =
- if not auto andalso random () <= important_message_keep_factor then
- extract_important_message output
- else
- ""
- val (message, used_facts) =
- case outcome of
- NONE =>
- proof_text isar_proof
- (pool, debug, isar_shrink_factor, ctxt, conjecture_shape)
- (proof_banner auto, full_types, minimize_command, tstplike_proof,
- fact_names, goal, subgoal)
- |>> (fn message =>
- message ^
- (if verbose then
- "\nATP real CPU time: " ^
- string_from_time (Time.fromMilliseconds (the msecs)) ^ "."
- else
- "") ^
- (if important_message <> "" then
- "\n\nImportant message from Dr. Geoff Sutcliffe:\n" ^
- important_message
- else
- ""))
- | SOME failure => (string_for_failure "ATP" failure, [])
- in
- {outcome = outcome, message = message, used_facts = used_facts,
- run_time_in_msecs = msecs}
- end
-
-(* "SMT_Failure.Abnormal_Termination" carries the solver's return code. Until
- these are sorted out properly in the SMT module, we have to interpret these
- ourselves. *)
-val remote_smt_failures =
- [(22, CantConnect),
- (127, NoPerl),
- (2, NoLibwwwPerl)]
-val z3_failures =
- [(103, MalformedInput),
- (110, MalformedInput)]
-val unix_failures =
- [(139, Crashed)]
-val smt_failures = remote_smt_failures @ z3_failures @ unix_failures
-
-fun failure_from_smt_failure (SMT_Failure.Counterexample _) = Unprovable
- | failure_from_smt_failure SMT_Failure.Time_Out = TimedOut
- | failure_from_smt_failure (SMT_Failure.Abnormal_Termination code) =
- (case AList.lookup (op =) smt_failures code of
- SOME failure => failure
- | NONE => UnknownError)
- | failure_from_smt_failure SMT_Failure.Out_Of_Memory = OutOfResources
- | failure_from_smt_failure _ = UnknownError
-
-(* FUDGE *)
-val smt_max_iter = 8
-val smt_iter_fact_divisor = 2
-val smt_iter_min_msecs = 5000
-val smt_iter_timeout_divisor = 2
-val smt_monomorph_limit = 4
-
-fun smt_filter_loop ({verbose, timeout, ...} : params) remote state i =
- let
- val ctxt = Proof.context_of state
- fun iter timeout iter_num outcome0 msecs_so_far facts =
- let
- val timer = Timer.startRealTimer ()
- val ms = timeout |> Time.toMilliseconds
- val iter_timeout =
- if iter_num < smt_max_iter then
- Int.min (ms, Int.max (smt_iter_min_msecs,
- ms div smt_iter_timeout_divisor))
- |> Time.fromMilliseconds
- else
- timeout
- val num_facts = length facts
- val _ =
- if verbose then
- "SMT iteration with " ^ string_of_int num_facts ^ " fact" ^
- plural_s num_facts ^ " for " ^ string_from_time iter_timeout ^ "..."
- |> Output.urgent_message
- else
- ()
- val {outcome, used_facts, run_time_in_msecs} =
- SMT_Solver.smt_filter remote iter_timeout state facts i
- val _ =
- if verbose andalso is_some outcome then
- "SMT outcome: " ^ SMT_Failure.string_of_failure ctxt (the outcome)
- |> Output.urgent_message
- else
- ()
- val outcome0 = if is_none outcome0 then SOME outcome else outcome0
- val msecs_so_far = int_opt_add run_time_in_msecs msecs_so_far
- val too_many_facts_perhaps =
- case outcome of
- NONE => false
- | SOME (SMT_Failure.Counterexample _) => false
- | SOME SMT_Failure.Time_Out => iter_timeout <> timeout
- | SOME (SMT_Failure.Abnormal_Termination code) =>
- (if verbose then
- "The SMT solver invoked with " ^ string_of_int num_facts ^
- " fact" ^ plural_s num_facts ^ " terminated abnormally with \
- \exit code " ^ string_of_int code ^ "."
- |> warning
- else
- ();
- true (* kind of *))
- | SOME SMT_Failure.Out_Of_Memory => true
- | SOME _ => true
- val timeout = Time.- (timeout, Timer.checkRealTimer timer)
- in
- if too_many_facts_perhaps andalso iter_num < smt_max_iter andalso
- num_facts > 0 andalso Time.> (timeout, Time.zeroTime) then
- let val facts = take (num_facts div smt_iter_fact_divisor) facts in
- iter timeout (iter_num + 1) outcome0 msecs_so_far facts
- end
- else
- {outcome = if is_none outcome then NONE else the outcome0,
- used_facts = used_facts, run_time_in_msecs = msecs_so_far}
- end
- in iter timeout 1 NONE (SOME 0) end
-
-(* taken from "Mirabelle" and generalized *)
-fun can_apply timeout tac state i =
- let
- val {context = ctxt, facts, goal} = Proof.goal state
- val full_tac = Method.insert_tac facts i THEN tac ctxt i
- in
- case try (TimeLimit.timeLimit timeout (Seq.pull o full_tac)) goal of
- SOME (SOME _) => true
- | _ => false
- end
-
-val smt_metis_timeout = seconds 0.5
-
-fun can_apply_metis debug state i ths =
- can_apply smt_metis_timeout
- (Config.put Metis_Tactics.verbose debug
- #> (fn ctxt => Metis_Tactics.metis_tac ctxt ths)) state i
-
-fun run_smt_solver auto name (params as {debug, ...}) minimize_command
- ({state, subgoal, subgoal_count, facts, ...} : prover_problem) =
- let
- val (remote, suffix) =
- case try (unprefix remote_prefix) name of
- SOME suffix => (true, suffix)
- | NONE => (false, name)
- val repair_context =
- Context.proof_map (SMT_Config.select_solver suffix)
- #> Config.put SMT_Config.verbose debug
- #> Config.put SMT_Config.monomorph_limit smt_monomorph_limit
- val state = state |> Proof.map_context repair_context
- val thy = Proof.theory_of state
- val get_fact = Option.map (apsnd (Thm.transfer thy)) o try dest_Untranslated
- val facts = facts |> map_filter get_fact
- val {outcome, used_facts, run_time_in_msecs} =
- smt_filter_loop params remote state subgoal facts
- val (chained_lemmas, other_lemmas) = split_used_facts (map fst used_facts)
- val outcome = outcome |> Option.map failure_from_smt_failure
- val message =
- case outcome of
- NONE =>
- let
- val method =
- if can_apply_metis debug state subgoal (map snd used_facts) then
- "metis"
- else
- "smt"
- in
- try_command_line (proof_banner auto)
- (apply_on_subgoal subgoal subgoal_count ^
- command_call method (map fst other_lemmas)) ^
- minimize_line minimize_command
- (map fst (other_lemmas @ chained_lemmas))
- end
- | SOME failure => string_for_failure "SMT solver" failure
- in
- {outcome = outcome, used_facts = map fst used_facts,
- run_time_in_msecs = run_time_in_msecs, message = message}
- end
-
-fun get_prover ctxt auto name =
- let val thy = ProofContext.theory_of ctxt in
- if is_smt_prover ctxt name then
- run_smt_solver auto name
- else if member (op =) (available_atps thy) name then
- run_atp auto name (get_atp thy name)
- else
- error ("No such prover: " ^ name ^ ".")
- end
-
-fun run_prover (params as {blocking, debug, max_relevant, timeout, expect, ...})
- auto minimize_command only
- {state, goal, subgoal, subgoal_count, facts} name =
- let
- val ctxt = Proof.context_of state
- val birth_time = Time.now ()
- val death_time = Time.+ (birth_time, timeout)
- val max_relevant =
- the_default (default_max_relevant_for_prover ctxt name) max_relevant
- val num_facts = length facts |> not only ? Integer.min max_relevant
- val desc =
- prover_description ctxt params name num_facts subgoal subgoal_count goal
- val prover = get_prover ctxt auto name
- val problem =
- {state = state, goal = goal, subgoal = subgoal,
- subgoal_count = subgoal_count, facts = take num_facts facts}
- fun go () =
- let
- fun really_go () =
- prover params (minimize_command name) problem
- |> (fn {outcome, message, ...} =>
- (if is_some outcome then "none" else "some", message))
- val (outcome_code, message) =
- if debug then
- really_go ()
- else
- (really_go ()
- handle ERROR message => ("unknown", "Error: " ^ message ^ "\n")
- | exn =>
- if Exn.is_interrupt exn then
- reraise exn
- else
- ("unknown", "Internal error:\n" ^
- ML_Compiler.exn_message exn ^ "\n"))
- val _ =
- if expect = "" orelse outcome_code = expect then
- ()
- else if blocking then
- error ("Unexpected outcome: " ^ quote outcome_code ^ ".")
- else
- warning ("Unexpected outcome: " ^ quote outcome_code ^ ".");
- in (outcome_code = "some", message) end
- in
- if auto then
- let val (success, message) = TimeLimit.timeLimit timeout go () in
- (success, state |> success ? Proof.goal_message (fn () =>
- Pretty.chunks [Pretty.str "", Pretty.mark Markup.hilite
- (Pretty.str message)]))
- end
- else if blocking then
- let val (success, message) = TimeLimit.timeLimit timeout go () in
- List.app Output.urgent_message
- (Async_Manager.break_into_chunks [desc ^ "\n" ^ message]);
- (success, state)
- end
- else
- (Async_Manager.launch das_Tool birth_time death_time desc (snd o go);
- (false, state))
- end
-
-fun run_sledgehammer (params as {blocking, debug, provers, full_types,
- relevance_thresholds, max_relevant, ...})
- auto i (relevance_override as {only, ...}) minimize_command
- state =
- if null provers then
- error "No prover is set."
- else case subgoal_count state of
- 0 => (Output.urgent_message "No subgoal!"; (false, state))
- | n =>
- let
- val _ = Proof.assert_backward state
- val ctxt = Proof.context_of state
- val {facts = chained_ths, goal, ...} = Proof.goal state
- val (_, hyp_ts, concl_t) = strip_subgoal goal i
- val _ = () |> not blocking ? kill_provers
- val _ = case find_first (not o is_prover_available ctxt) provers of
- SOME name => error ("No such prover: " ^ name ^ ".")
- | NONE => ()
- val _ = if auto then () else Output.urgent_message "Sledgehammering..."
- val (smts, atps) = provers |> List.partition (is_smt_prover ctxt)
- fun run_provers label full_types relevance_fudge maybe_translate provers
- (res as (success, state)) =
- if success orelse null provers then
- res
- else
- let
- val max_max_relevant =
- case max_relevant of
- SOME n => n
- | NONE =>
- 0 |> fold (Integer.max o default_max_relevant_for_prover ctxt)
- provers
- |> auto ? (fn n => n div auto_max_relevant_divisor)
- val is_built_in_const =
- is_built_in_const_for_prover ctxt (hd provers)
- val facts =
- relevant_facts ctxt full_types relevance_thresholds
- max_max_relevant is_built_in_const relevance_fudge
- relevance_override chained_ths hyp_ts concl_t
- |> map maybe_translate
- val problem =
- {state = state, goal = goal, subgoal = i, subgoal_count = n,
- facts = facts}
- val run_prover = run_prover params auto minimize_command only
- in
- if debug then
- Output.urgent_message (label ^ plural_s (length provers) ^ ": " ^
- (if null facts then
- "Found no relevant facts."
- else
- "Including (up to) " ^ string_of_int (length facts) ^
- " relevant fact" ^ plural_s (length facts) ^ ":\n" ^
- (facts |> map_filter fact_name
- |> space_implode " ") ^ "."))
- else
- ();
- if auto then
- fold (fn prover => fn (true, state) => (true, state)
- | (false, _) => run_prover problem prover)
- provers (false, state)
- else
- provers |> (if blocking then Par_List.map else map)
- (run_prover problem)
- |> exists fst |> rpair state
- end
- val run_atps =
- run_provers "ATP" full_types atp_relevance_fudge
- (Translated o translate_fact ctxt) atps
- val run_smts =
- run_provers "SMT solver" true smt_relevance_fudge Untranslated smts
- fun run_atps_and_smt_solvers () =
- [run_atps, run_smts] |> Par_List.map (fn f => f (false, state) |> K ())
- in
- (false, state)
- |> (if blocking then run_atps #> not auto ? run_smts
- else (fn p => Future.fork (tap run_atps_and_smt_solvers) |> K p))
- end
-
-val setup =
- dest_dir_setup
- #> problem_prefix_setup
- #> measure_run_time_setup
-
-end;