src/HOL/Mirabelle/Tools/mirabelle_sledgehammer.ML
author blanchet
Tue, 24 May 2011 00:01:33 +0200
changeset 43794 26111aafab12
parent 43793 96f62b77748f
child 43845 20e9caff1f86
permissions -rw-r--r--
detect inappropriate problems and crashes better in Waldmeister
     1 (*  Title:      HOL/Mirabelle/Tools/mirabelle_sledgehammer.ML
     2     Author:     Jasmin Blanchette and Sascha Boehme and Tobias Nipkow, TU Munich
     3 *)
     4 
     5 structure Mirabelle_Sledgehammer : MIRABELLE_ACTION =
     6 struct
     7 
     8 val proverK = "prover"
     9 val prover_timeoutK = "prover_timeout"
    10 val keepK = "keep"
    11 val full_typesK = "full_types"
    12 val type_sysK = "type_sys"
    13 val slicingK = "slicing"
    14 val e_weight_methodK = "e_weight_method"
    15 val spass_force_sosK = "spass_force_sos"
    16 val vampire_force_sosK = "vampire_force_sos"
    17 val max_relevantK = "max_relevant"
    18 val minimizeK = "minimize"
    19 val minimize_timeoutK = "minimize_timeout"
    20 val metis_ftK = "metis_ft"
    21 val reconstructorK = "reconstructor"
    22 
    23 fun sh_tag id = "#" ^ string_of_int id ^ " sledgehammer: "
    24 fun minimize_tag id = "#" ^ string_of_int id ^ " minimize (sledgehammer): "
    25 fun reconstructor_tag reconstructor id =
    26   "#" ^ string_of_int id ^ " " ^ (!reconstructor) ^ " (sledgehammer): "
    27 
    28 val separator = "-----"
    29 
    30 
    31 datatype sh_data = ShData of {
    32   calls: int,
    33   success: int,
    34   nontriv_calls: int,
    35   nontriv_success: int,
    36   lemmas: int,
    37   max_lems: int,
    38   time_isa: int,
    39   time_prover: int,
    40   time_prover_fail: int}
    41 
    42 datatype re_data = ReData of {
    43   calls: int,
    44   success: int,
    45   nontriv_calls: int,
    46   nontriv_success: int,
    47   proofs: int,
    48   time: int,
    49   timeout: int,
    50   lemmas: int * int * int,
    51   posns: (Position.T * bool) list
    52   }
    53 
    54 datatype min_data = MinData of {
    55   succs: int,
    56   ab_ratios: int
    57   }
    58 
    59 fun make_sh_data
    60       (calls,success,nontriv_calls,nontriv_success,lemmas,max_lems,time_isa,
    61        time_prover,time_prover_fail) =
    62   ShData{calls=calls, success=success, nontriv_calls=nontriv_calls,
    63          nontriv_success=nontriv_success, lemmas=lemmas, max_lems=max_lems,
    64          time_isa=time_isa, time_prover=time_prover,
    65          time_prover_fail=time_prover_fail}
    66 
    67 fun make_min_data (succs, ab_ratios) =
    68   MinData{succs=succs, ab_ratios=ab_ratios}
    69 
    70 fun make_re_data (calls,success,nontriv_calls,nontriv_success,proofs,time,
    71                   timeout,lemmas,posns) =
    72   ReData{calls=calls, success=success, nontriv_calls=nontriv_calls,
    73          nontriv_success=nontriv_success, proofs=proofs, time=time,
    74          timeout=timeout, lemmas=lemmas, posns=posns}
    75 
    76 val empty_sh_data = make_sh_data (0, 0, 0, 0, 0, 0, 0, 0, 0)
    77 val empty_min_data = make_min_data (0, 0)
    78 val empty_re_data = make_re_data (0, 0, 0, 0, 0, 0, 0, (0,0,0), [])
    79 
    80 fun tuple_of_sh_data (ShData {calls, success, nontriv_calls, nontriv_success,
    81                               lemmas, max_lems, time_isa,
    82   time_prover, time_prover_fail}) = (calls, success, nontriv_calls,
    83   nontriv_success, lemmas, max_lems, time_isa, time_prover, time_prover_fail)
    84 
    85 fun tuple_of_min_data (MinData {succs, ab_ratios}) = (succs, ab_ratios)
    86 
    87 fun tuple_of_re_data (ReData {calls, success, nontriv_calls, nontriv_success,
    88   proofs, time, timeout, lemmas, posns}) = (calls, success, nontriv_calls,
    89   nontriv_success, proofs, time, timeout, lemmas, posns)
    90 
    91 
    92 datatype reconstructor_mode =
    93   Unminimized | Minimized | UnminimizedFT | MinimizedFT
    94 
    95 datatype data = Data of {
    96   sh: sh_data,
    97   min: min_data,
    98   re_u: re_data, (* reconstructor with unminimized set of lemmas *)
    99   re_m: re_data, (* reconstructor with minimized set of lemmas *)
   100   re_uft: re_data, (* reconstructor with unminimized set of lemmas and fully-typed *)
   101   re_mft: re_data, (* reconstructor with minimized set of lemmas and fully-typed *)
   102   mini: bool   (* with minimization *)
   103   }
   104 
   105 fun make_data (sh, min, re_u, re_m, re_uft, re_mft, mini) =
   106   Data {sh=sh, min=min, re_u=re_u, re_m=re_m, re_uft=re_uft, re_mft=re_mft,
   107     mini=mini}
   108 
   109 val empty_data = make_data (empty_sh_data, empty_min_data,
   110   empty_re_data, empty_re_data, empty_re_data, empty_re_data, false)
   111 
   112 fun map_sh_data f (Data {sh, min, re_u, re_m, re_uft, re_mft, mini}) =
   113   let val sh' = make_sh_data (f (tuple_of_sh_data sh))
   114   in make_data (sh', min, re_u, re_m, re_uft, re_mft, mini) end
   115 
   116 fun map_min_data f (Data {sh, min, re_u, re_m, re_uft, re_mft, mini}) =
   117   let val min' = make_min_data (f (tuple_of_min_data min))
   118   in make_data (sh, min', re_u, re_m, re_uft, re_mft, mini) end
   119 
   120 fun map_re_data f m (Data {sh, min, re_u, re_m, re_uft, re_mft, mini}) =
   121   let
   122     fun map_me g Unminimized   (u, m, uft, mft) = (g u, m, uft, mft)
   123       | map_me g Minimized     (u, m, uft, mft) = (u, g m, uft, mft)
   124       | map_me g UnminimizedFT (u, m, uft, mft) = (u, m, g uft, mft)
   125       | map_me g MinimizedFT   (u, m, uft, mft) = (u, m, uft, g mft)
   126 
   127     val f' = make_re_data o f o tuple_of_re_data
   128 
   129     val (re_u', re_m', re_uft', re_mft') =
   130       map_me f' m (re_u, re_m, re_uft, re_mft)
   131   in make_data (sh, min, re_u', re_m', re_uft', re_mft', mini) end
   132 
   133 fun set_mini mini (Data {sh, min, re_u, re_m, re_uft, re_mft, ...}) =
   134   make_data (sh, min, re_u, re_m, re_uft, re_mft, mini)
   135 
   136 fun inc_max (n:int) (s,sos,m) = (s+n, sos + n*n, Int.max(m,n));
   137 
   138 val inc_sh_calls =  map_sh_data
   139   (fn (calls, success, nontriv_calls, nontriv_success, lemmas,max_lems, time_isa, time_prover, time_prover_fail)
   140     => (calls + 1, success, nontriv_calls, nontriv_success, lemmas, max_lems, time_isa, time_prover, time_prover_fail))
   141 
   142 val inc_sh_success = map_sh_data
   143   (fn (calls, success, nontriv_calls, nontriv_success, lemmas,max_lems, time_isa, time_prover, time_prover_fail)
   144     => (calls, success + 1, nontriv_calls, nontriv_success, lemmas,max_lems, time_isa, time_prover, time_prover_fail))
   145 
   146 val inc_sh_nontriv_calls =  map_sh_data
   147   (fn (calls, success, nontriv_calls, nontriv_success, lemmas,max_lems, time_isa, time_prover, time_prover_fail)
   148     => (calls, success, nontriv_calls + 1, nontriv_success, lemmas, max_lems, time_isa, time_prover, time_prover_fail))
   149 
   150 val inc_sh_nontriv_success = map_sh_data
   151   (fn (calls, success, nontriv_calls, nontriv_success, lemmas,max_lems, time_isa, time_prover, time_prover_fail)
   152     => (calls, success, nontriv_calls, nontriv_success + 1, lemmas,max_lems, time_isa, time_prover, time_prover_fail))
   153 
   154 fun inc_sh_lemmas n = map_sh_data
   155   (fn (calls,success,nontriv_calls, nontriv_success, lemmas,max_lems,time_isa,time_prover,time_prover_fail)
   156     => (calls,success,nontriv_calls, nontriv_success, lemmas+n,max_lems,time_isa,time_prover,time_prover_fail))
   157 
   158 fun inc_sh_max_lems n = map_sh_data
   159   (fn (calls,success,nontriv_calls, nontriv_success, lemmas,max_lems,time_isa,time_prover,time_prover_fail)
   160     => (calls,success,nontriv_calls, nontriv_success, lemmas,Int.max(max_lems,n),time_isa,time_prover,time_prover_fail))
   161 
   162 fun inc_sh_time_isa t = map_sh_data
   163   (fn (calls,success,nontriv_calls, nontriv_success, lemmas,max_lems,time_isa,time_prover,time_prover_fail)
   164     => (calls,success,nontriv_calls, nontriv_success, lemmas,max_lems,time_isa + t,time_prover,time_prover_fail))
   165 
   166 fun inc_sh_time_prover t = map_sh_data
   167   (fn (calls,success,nontriv_calls, nontriv_success, lemmas,max_lems,time_isa,time_prover,time_prover_fail)
   168     => (calls,success,nontriv_calls, nontriv_success, lemmas,max_lems,time_isa,time_prover + t,time_prover_fail))
   169 
   170 fun inc_sh_time_prover_fail t = map_sh_data
   171   (fn (calls,success,nontriv_calls, nontriv_success, lemmas,max_lems,time_isa,time_prover,time_prover_fail)
   172     => (calls,success,nontriv_calls, nontriv_success, lemmas,max_lems,time_isa,time_prover,time_prover_fail + t))
   173 
   174 val inc_min_succs = map_min_data
   175   (fn (succs,ab_ratios) => (succs+1, ab_ratios))
   176 
   177 fun inc_min_ab_ratios r = map_min_data
   178   (fn (succs, ab_ratios) => (succs, ab_ratios+r))
   179 
   180 val inc_reconstructor_calls = map_re_data
   181   (fn (calls,success,nontriv_calls, nontriv_success, proofs,time,timeout,lemmas,posns)
   182     => (calls + 1, success, nontriv_calls, nontriv_success, proofs, time, timeout, lemmas,posns))
   183 
   184 val inc_reconstructor_success = map_re_data
   185   (fn (calls,success,nontriv_calls, nontriv_success, proofs,time,timeout,lemmas,posns)
   186     => (calls, success + 1, nontriv_calls, nontriv_success, proofs, time, timeout, lemmas,posns))
   187 
   188 val inc_reconstructor_nontriv_calls = map_re_data
   189   (fn (calls,success,nontriv_calls, nontriv_success, proofs,time,timeout,lemmas,posns)
   190     => (calls, success, nontriv_calls + 1, nontriv_success, proofs, time, timeout, lemmas,posns))
   191 
   192 val inc_reconstructor_nontriv_success = map_re_data
   193   (fn (calls,success,nontriv_calls, nontriv_success, proofs,time,timeout,lemmas,posns)
   194     => (calls, success, nontriv_calls, nontriv_success + 1, proofs, time, timeout, lemmas,posns))
   195 
   196 val inc_reconstructor_proofs = map_re_data
   197   (fn (calls,success,nontriv_calls, nontriv_success, proofs,time,timeout,lemmas,posns)
   198     => (calls, success, nontriv_calls, nontriv_success, proofs + 1, time, timeout, lemmas,posns))
   199 
   200 fun inc_reconstructor_time m t = map_re_data
   201  (fn (calls,success,nontriv_calls, nontriv_success, proofs,time,timeout,lemmas,posns)
   202   => (calls, success, nontriv_calls, nontriv_success, proofs, time + t, timeout, lemmas,posns)) m
   203 
   204 val inc_reconstructor_timeout = map_re_data
   205   (fn (calls,success,nontriv_calls, nontriv_success, proofs,time,timeout,lemmas,posns)
   206     => (calls, success, nontriv_calls, nontriv_success, proofs, time, timeout + 1, lemmas,posns))
   207 
   208 fun inc_reconstructor_lemmas m n = map_re_data
   209   (fn (calls,success,nontriv_calls, nontriv_success, proofs,time,timeout,lemmas,posns)
   210     => (calls, success, nontriv_calls, nontriv_success, proofs, time, timeout, inc_max n lemmas, posns)) m
   211 
   212 fun inc_reconstructor_posns m pos = map_re_data
   213   (fn (calls,success,nontriv_calls, nontriv_success, proofs,time,timeout,lemmas,posns)
   214     => (calls, success, nontriv_calls, nontriv_success, proofs, time, timeout, lemmas, pos::posns)) m
   215 
   216 local
   217 
   218 val str = string_of_int
   219 val str3 = Real.fmt (StringCvt.FIX (SOME 3))
   220 fun percentage a b = string_of_int (a * 100 div b)
   221 fun time t = Real.fromInt t / 1000.0
   222 fun avg_time t n =
   223   if n > 0 then (Real.fromInt t / 1000.0) / Real.fromInt n else 0.0
   224 
   225 fun log_sh_data log
   226     (calls, success, nontriv_calls, nontriv_success, lemmas, max_lems, time_isa, time_prover, time_prover_fail) =
   227  (log ("Total number of sledgehammer calls: " ^ str calls);
   228   log ("Number of successful sledgehammer calls: " ^ str success);
   229   log ("Number of sledgehammer lemmas: " ^ str lemmas);
   230   log ("Max number of sledgehammer lemmas: " ^ str max_lems);
   231   log ("Success rate: " ^ percentage success calls ^ "%");
   232   log ("Total number of nontrivial sledgehammer calls: " ^ str nontriv_calls);
   233   log ("Number of successful nontrivial sledgehammer calls: " ^ str nontriv_success);
   234   log ("Total time for sledgehammer calls (Isabelle): " ^ str3 (time time_isa));
   235   log ("Total time for successful sledgehammer calls (ATP): " ^ str3 (time time_prover));
   236   log ("Total time for failed sledgehammer calls (ATP): " ^ str3 (time time_prover_fail));
   237   log ("Average time for sledgehammer calls (Isabelle): " ^
   238     str3 (avg_time time_isa calls));
   239   log ("Average time for successful sledgehammer calls (ATP): " ^
   240     str3 (avg_time time_prover success));
   241   log ("Average time for failed sledgehammer calls (ATP): " ^
   242     str3 (avg_time time_prover_fail (calls - success)))
   243   )
   244 
   245 
   246 fun str_of_pos (pos, triv) =
   247   let val str0 = string_of_int o the_default 0
   248   in
   249     str0 (Position.line_of pos) ^ ":" ^ str0 (Position.column_of pos) ^
   250     (if triv then "[T]" else "")
   251   end
   252 
   253 fun log_re_data log tag sh_calls (re_calls, re_success, re_nontriv_calls,
   254      re_nontriv_success, re_proofs, re_time, re_timeout,
   255     (lemmas, lems_sos, lems_max), re_posns) =
   256  (log ("Total number of " ^ tag ^ "reconstructor calls: " ^ str re_calls);
   257   log ("Number of successful " ^ tag ^ "reconstructor calls: " ^ str re_success ^
   258     " (proof: " ^ str re_proofs ^ ")");
   259   log ("Number of " ^ tag ^ "reconstructor timeouts: " ^ str re_timeout);
   260   log ("Success rate: " ^ percentage re_success sh_calls ^ "%");
   261   log ("Total number of nontrivial " ^ tag ^ "reconstructor calls: " ^ str re_nontriv_calls);
   262   log ("Number of successful nontrivial " ^ tag ^ "reconstructor calls: " ^ str re_nontriv_success ^
   263     " (proof: " ^ str re_proofs ^ ")");
   264   log ("Number of successful " ^ tag ^ "reconstructor lemmas: " ^ str lemmas);
   265   log ("SOS of successful " ^ tag ^ "reconstructor lemmas: " ^ str lems_sos);
   266   log ("Max number of successful " ^ tag ^ "reconstructor lemmas: " ^ str lems_max);
   267   log ("Total time for successful " ^ tag ^ "reconstructor calls: " ^ str3 (time re_time));
   268   log ("Average time for successful " ^ tag ^ "reconstructor calls: " ^
   269     str3 (avg_time re_time re_success));
   270   if tag=""
   271   then log ("Proved: " ^ space_implode " " (map str_of_pos re_posns))
   272   else ()
   273  )
   274 
   275 fun log_min_data log (succs, ab_ratios) =
   276   (log ("Number of successful minimizations: " ^ string_of_int succs);
   277    log ("After/before ratios: " ^ string_of_int ab_ratios)
   278   )
   279 
   280 in
   281 
   282 fun log_data id log (Data {sh, min, re_u, re_m, re_uft, re_mft, mini}) =
   283   let
   284     val ShData {calls=sh_calls, ...} = sh
   285 
   286     fun app_if (ReData {calls, ...}) f = if calls > 0 then f () else ()
   287     fun log_re tag m =
   288       log_re_data log tag sh_calls (tuple_of_re_data m)
   289     fun log_reconstructor (tag1, m1) (tag2, m2) = app_if m1 (fn () =>
   290       (log_re tag1 m1; log ""; app_if m2 (fn () => log_re tag2 m2)))
   291   in
   292     if sh_calls > 0
   293     then
   294      (log ("\n\n\nReport #" ^ string_of_int id ^ ":\n");
   295       log_sh_data log (tuple_of_sh_data sh);
   296       log "";
   297       if not mini
   298       then log_reconstructor ("", re_u) ("fully-typed ", re_uft)
   299       else
   300         app_if re_u (fn () =>
   301          (log_reconstructor ("unminimized ", re_u) ("unminimized fully-typed ", re_uft);
   302           log "";
   303           app_if re_m (fn () =>
   304             (log_min_data log (tuple_of_min_data min); log "";
   305              log_reconstructor ("", re_m) ("fully-typed ", re_mft))))))
   306     else ()
   307   end
   308 
   309 end
   310 
   311 
   312 (* Warning: we implicitly assume single-threaded execution here! *)
   313 val data = Unsynchronized.ref ([] : (int * data) list)
   314 
   315 fun init id thy = (Unsynchronized.change data (cons (id, empty_data)); thy)
   316 fun done id ({log, ...}: Mirabelle.done_args) =
   317   AList.lookup (op =) (!data) id
   318   |> Option.map (log_data id log)
   319   |> K ()
   320 
   321 fun change_data id f = (Unsynchronized.change data (AList.map_entry (op =) id f); ())
   322 
   323 
   324 fun get_prover ctxt args =
   325   let
   326     fun default_prover_name () =
   327       hd (#provers (Sledgehammer_Isar.default_params ctxt []))
   328       handle Empty => error "No ATP available."
   329     fun get_prover name =
   330       (name, Sledgehammer_Run.get_minimizing_prover ctxt false name)
   331   in
   332     (case AList.lookup (op =) args proverK of
   333       SOME name => get_prover name
   334     | NONE => get_prover (default_prover_name ()))
   335   end
   336 
   337 type locality = Sledgehammer_Filter.locality
   338 
   339 (* hack *)
   340 fun reconstructor_from_msg args msg =
   341   (case AList.lookup (op =) args reconstructorK of
   342     SOME name => name
   343   | NONE =>
   344     if String.isSubstring "metisFT" msg then "metisFT"
   345     else if String.isSubstring "metis" msg then "metis"
   346     else "smt")
   347 
   348 local
   349 
   350 datatype sh_result =
   351   SH_OK of int * int * (string * locality) list |
   352   SH_FAIL of int * int |
   353   SH_ERROR
   354 
   355 fun run_sh prover_name prover type_sys max_relevant slicing e_weight_method spass_force_sos
   356       vampire_force_sos hard_timeout timeout dir st =
   357   let
   358     val {context = ctxt, facts = chained_ths, goal} = Proof.goal st
   359     val i = 1
   360     fun change_dir (SOME dir) =
   361         Config.put Sledgehammer_Provers.dest_dir dir
   362         #> Config.put SMT_Config.debug_files
   363           (dir ^ "/" ^ Name.desymbolize false (ATP_Problem.timestamp ()) ^ "_"
   364           ^ serial_string ())
   365       | change_dir NONE = I
   366     val st' =
   367       st |> Proof.map_context
   368                 (change_dir dir
   369                  #> (Option.map (Config.put ATP_Systems.e_weight_method)
   370                        e_weight_method |> the_default I)
   371                  #> (Option.map (Config.put ATP_Systems.spass_force_sos)
   372                        spass_force_sos |> the_default I)
   373                  #> (Option.map (Config.put ATP_Systems.vampire_force_sos)
   374                        vampire_force_sos |> the_default I)
   375                  #> Config.put Sledgehammer_Provers.measure_run_time true)
   376     val params as {relevance_thresholds, max_relevant, slicing, ...} =
   377       Sledgehammer_Isar.default_params ctxt
   378           [("verbose", "true"),
   379            ("type_sys", type_sys),
   380            ("max_relevant", max_relevant),
   381            ("slicing", slicing),
   382            ("timeout", string_of_int timeout)]
   383     val default_max_relevant =
   384       Sledgehammer_Provers.default_max_relevant_for_prover ctxt slicing
   385         prover_name
   386     val is_appropriate_prop =
   387       Sledgehammer_Provers.is_appropriate_prop_for_prover ctxt prover_name
   388     val is_built_in_const =
   389       Sledgehammer_Provers.is_built_in_const_for_prover ctxt prover_name
   390     val relevance_fudge =
   391       Sledgehammer_Provers.relevance_fudge_for_prover ctxt prover_name
   392     val relevance_override = {add = [], del = [], only = false}
   393     val (_, hyp_ts, concl_t) = Sledgehammer_Util.strip_subgoal goal i
   394     val time_limit =
   395       (case hard_timeout of
   396         NONE => I
   397       | SOME secs => TimeLimit.timeLimit (Time.fromSeconds secs))
   398     fun failed failure =
   399       ({outcome = SOME failure, message = "", used_facts = [],
   400         run_time_in_msecs = NONE}, ~1)
   401     val ({outcome, message, used_facts, run_time_in_msecs}
   402          : Sledgehammer_Provers.prover_result,
   403         time_isa) = time_limit (Mirabelle.cpu_time (fn () =>
   404       let
   405         val _ = if is_appropriate_prop concl_t then ()
   406                 else raise Fail "inappropriate"
   407         val facts =
   408           Sledgehammer_Filter.relevant_facts ctxt relevance_thresholds
   409               (the_default default_max_relevant max_relevant)
   410               is_appropriate_prop is_built_in_const relevance_fudge
   411               relevance_override chained_ths hyp_ts concl_t
   412         val problem =
   413           {state = st', goal = goal, subgoal = i,
   414            subgoal_count = Sledgehammer_Util.subgoal_count st,
   415            facts = facts |> map Sledgehammer_Provers.Untranslated_Fact,
   416            smt_filter = NONE}
   417       in prover params (K "") problem end)) ()
   418       handle TimeLimit.TimeOut => failed ATP_Proof.TimedOut
   419            | Fail "inappropriate" => failed ATP_Proof.Inappropriate
   420     val time_prover = run_time_in_msecs |> the_default ~1
   421   in
   422     case outcome of
   423       NONE => (message, SH_OK (time_isa, time_prover, used_facts))
   424     | SOME _ => (message, SH_FAIL (time_isa, time_prover))
   425   end
   426   handle ERROR msg => ("error: " ^ msg, SH_ERROR)
   427 
   428 fun thms_of_name ctxt name =
   429   let
   430     val lex = Keyword.get_lexicons
   431     val get = maps (Proof_Context.get_fact ctxt o fst)
   432   in
   433     Source.of_string name
   434     |> Symbol.source
   435     |> Token.source {do_recover=SOME false} lex Position.start
   436     |> Token.source_proper
   437     |> Source.source Token.stopper (Parse_Spec.xthms1 >> get) NONE
   438     |> Source.exhaust
   439   end
   440 
   441 in
   442 
   443 fun run_sledgehammer trivial args reconstructor named_thms id ({pre=st, log, ...}: Mirabelle.run_args) =
   444   let
   445     val triv_str = if trivial then "[T] " else ""
   446     val _ = change_data id inc_sh_calls
   447     val _ = if trivial then () else change_data id inc_sh_nontriv_calls
   448     val (prover_name, prover) = get_prover (Proof.context_of st) args
   449     val type_sys = AList.lookup (op =) args type_sysK |> the_default "smart"
   450     val max_relevant = AList.lookup (op =) args max_relevantK |> the_default "smart"
   451     val slicing = AList.lookup (op =) args slicingK |> the_default "true"
   452     val e_weight_method = AList.lookup (op =) args e_weight_methodK
   453     val spass_force_sos = AList.lookup (op =) args spass_force_sosK
   454       |> Option.map (curry (op <>) "false")
   455     val vampire_force_sos = AList.lookup (op =) args vampire_force_sosK
   456       |> Option.map (curry (op <>) "false")
   457     val dir = AList.lookup (op =) args keepK
   458     val timeout = Mirabelle.get_int_setting args (prover_timeoutK, 30)
   459     (* always use a hard timeout, but give some slack so that the automatic
   460        minimizer has a chance to do its magic *)
   461     val hard_timeout = SOME (2 * timeout)
   462     val (msg, result) =
   463       run_sh prover_name prover type_sys max_relevant slicing e_weight_method spass_force_sos
   464         vampire_force_sos hard_timeout timeout dir st
   465   in
   466     case result of
   467       SH_OK (time_isa, time_prover, names) =>
   468         let
   469           fun get_thms (_, Sledgehammer_Filter.Chained) = NONE
   470             | get_thms (name, loc) =
   471               SOME ((name, loc), thms_of_name (Proof.context_of st) name)
   472         in
   473           change_data id inc_sh_success;
   474           if trivial then () else change_data id inc_sh_nontriv_success;
   475           change_data id (inc_sh_lemmas (length names));
   476           change_data id (inc_sh_max_lems (length names));
   477           change_data id (inc_sh_time_isa time_isa);
   478           change_data id (inc_sh_time_prover time_prover);
   479           reconstructor := reconstructor_from_msg args msg;
   480           named_thms := SOME (map_filter get_thms names);
   481           log (sh_tag id ^ triv_str ^ "succeeded (" ^ string_of_int time_isa ^ "+" ^
   482             string_of_int time_prover ^ ") [" ^ prover_name ^ "]:\n" ^ msg)
   483         end
   484     | SH_FAIL (time_isa, time_prover) =>
   485         let
   486           val _ = change_data id (inc_sh_time_isa time_isa)
   487           val _ = change_data id (inc_sh_time_prover_fail time_prover)
   488         in log (sh_tag id ^ triv_str ^ "failed: " ^ msg) end
   489     | SH_ERROR => log (sh_tag id ^ "failed: " ^ msg)
   490   end
   491 
   492 end
   493 
   494 fun run_minimize args reconstructor named_thms id
   495         ({pre=st, log, ...}: Mirabelle.run_args) =
   496   let
   497     val ctxt = Proof.context_of st
   498     val n0 = length (these (!named_thms))
   499     val (prover_name, _) = get_prover ctxt args
   500     val type_sys = AList.lookup (op =) args type_sysK |> the_default "smart"
   501     val timeout =
   502       AList.lookup (op =) args minimize_timeoutK
   503       |> Option.map (fst o read_int o raw_explode)  (* FIXME Symbol.explode (?) *)
   504       |> the_default 5
   505     val params as {explicit_apply, ...} = Sledgehammer_Isar.default_params ctxt
   506       [("provers", prover_name),
   507        ("verbose", "true"),
   508        ("type_sys", type_sys),
   509        ("timeout", string_of_int timeout)]
   510     val minimize =
   511       Sledgehammer_Minimize.minimize_facts prover_name params
   512           (SOME explicit_apply) true 1 (Sledgehammer_Util.subgoal_count st)
   513     val _ = log separator
   514   in
   515     case minimize st (these (!named_thms)) of
   516       (SOME named_thms', msg) =>
   517         (change_data id inc_min_succs;
   518          change_data id (inc_min_ab_ratios ((100 * length named_thms') div n0));
   519          if length named_thms' = n0
   520          then log (minimize_tag id ^ "already minimal")
   521          else (reconstructor := reconstructor_from_msg args msg;
   522                named_thms := SOME named_thms';
   523                log (minimize_tag id ^ "succeeded:\n" ^ msg))
   524         )
   525     | (NONE, msg) => log (minimize_tag id ^ "failed: " ^ msg)
   526   end
   527 
   528 
   529 fun run_reconstructor trivial full m name reconstructor named_thms id
   530     ({pre=st, timeout, log, pos, ...}: Mirabelle.run_args) =
   531   let
   532     fun do_reconstructor thms ctxt =
   533       (if !reconstructor = "sledgehammer_tac" then
   534          (fn ctxt => fn thms =>
   535             Method.insert_tac thms THEN'
   536             Sledgehammer_Tactics.sledgehammer_as_unsound_oracle_tac ctxt)
   537        else if !reconstructor = "smt" then
   538          SMT_Solver.smt_tac
   539        else if full orelse !reconstructor = "metisFT" then
   540          Metis_Tactics.metisFT_tac
   541        else
   542          Metis_Tactics.metis_tac) ctxt thms
   543     fun apply_reconstructor thms =
   544       Mirabelle.can_apply timeout (do_reconstructor thms) st
   545 
   546     fun with_time (false, t) = "failed (" ^ string_of_int t ^ ")"
   547       | with_time (true, t) = (change_data id (inc_reconstructor_success m);
   548           if trivial then ()
   549           else change_data id (inc_reconstructor_nontriv_success m);
   550           change_data id (inc_reconstructor_lemmas m (length named_thms));
   551           change_data id (inc_reconstructor_time m t);
   552           change_data id (inc_reconstructor_posns m (pos, trivial));
   553           if name = "proof" then change_data id (inc_reconstructor_proofs m)
   554           else ();
   555           "succeeded (" ^ string_of_int t ^ ")")
   556     fun timed_reconstructor thms =
   557       (with_time (Mirabelle.cpu_time apply_reconstructor thms), true)
   558       handle TimeLimit.TimeOut => (change_data id (inc_reconstructor_timeout m);
   559                ("timeout", false))
   560            | ERROR msg => ("error: " ^ msg, false)
   561 
   562     val _ = log separator
   563     val _ = change_data id (inc_reconstructor_calls m)
   564     val _ = if trivial then ()
   565             else change_data id (inc_reconstructor_nontriv_calls m)
   566   in
   567     maps snd named_thms
   568     |> timed_reconstructor
   569     |>> log o prefix (reconstructor_tag reconstructor id)
   570     |> snd
   571   end
   572 
   573 val try_timeout = seconds 5.0
   574 
   575 fun sledgehammer_action args id (st as {pre, name, ...}: Mirabelle.run_args) =
   576   let val goal = Thm.major_prem_of (#goal (Proof.goal pre)) in
   577     if can Logic.dest_conjunction goal orelse can Logic.dest_equals goal
   578     then () else
   579     let
   580       val reconstructor = Unsynchronized.ref ""
   581       val named_thms =
   582         Unsynchronized.ref (NONE : ((string * locality) * thm list) list option)
   583       val minimize = AList.defined (op =) args minimizeK
   584       val metis_ft = AList.defined (op =) args metis_ftK
   585       val trivial = Try.invoke_try (SOME try_timeout) ([], [], [], []) pre
   586         handle TimeLimit.TimeOut => false
   587       fun apply_reconstructor m1 m2 =
   588         if metis_ft
   589         then
   590           if not (Mirabelle.catch_result (reconstructor_tag reconstructor) false
   591               (run_reconstructor trivial false m1 name reconstructor
   592                    (these (!named_thms))) id st)
   593           then
   594             (Mirabelle.catch_result (reconstructor_tag reconstructor) false
   595               (run_reconstructor trivial true m2 name reconstructor
   596                    (these (!named_thms))) id st; ())
   597           else ()
   598         else
   599           (Mirabelle.catch_result (reconstructor_tag reconstructor) false
   600             (run_reconstructor trivial false m1 name reconstructor
   601                  (these (!named_thms))) id st; ())
   602     in 
   603       change_data id (set_mini minimize);
   604       Mirabelle.catch sh_tag (run_sledgehammer trivial args reconstructor
   605                                                named_thms) id st;
   606       if is_some (!named_thms)
   607       then
   608        (apply_reconstructor Unminimized UnminimizedFT;
   609         if minimize andalso not (null (these (!named_thms)))
   610         then
   611          (Mirabelle.catch minimize_tag
   612               (run_minimize args reconstructor named_thms) id st;
   613           apply_reconstructor Minimized MinimizedFT)
   614         else ())
   615       else ()
   616     end
   617   end
   618 
   619 fun invoke args =
   620   let
   621     val _ = Sledgehammer_Isar.full_types := AList.defined (op =) args full_typesK
   622   in Mirabelle.register (init, sledgehammer_action args, done) end
   623 
   624 end