took out CVC3 again -- there seems to be issues with the server version of CVC3 + minor tweaks
1 (* Title: HOL/Tools/Sledgehammer/sledgehammer_isar.ML
2 Author: Jasmin Blanchette, TU Muenchen
4 Adds "sledgehammer" and related commands to Isabelle/Isar's outer syntax.
7 signature SLEDGEHAMMER_ISAR =
9 type params = Sledgehammer_Provers.params
11 val auto : bool Unsynchronized.ref
12 val provers : string Unsynchronized.ref
13 val timeout : int Unsynchronized.ref
14 val default_params : Proof.context -> (string * string) list -> params
15 val setup : theory -> theory
18 structure Sledgehammer_Isar : SLEDGEHAMMER_ISAR =
23 open ATP_Problem_Generate
24 open ATP_Proof_Reconstruct
25 open Sledgehammer_Util
26 open Sledgehammer_Fact
27 open Sledgehammer_Provers
28 open Sledgehammer_Minimize
29 open Sledgehammer_MaSh
38 val messagesN = "messages"
39 val supported_proversN = "supported_provers"
40 val kill_proversN = "kill_provers"
41 val running_proversN = "running_provers"
42 val kill_learnersN = "kill_learners"
43 val running_learnersN = "running_learners"
44 val refresh_tptpN = "refresh_tptp"
46 val auto = Unsynchronized.ref false
49 ProofGeneralPgip.add_preference Preferences.category_tracing
50 (Preferences.bool_pref auto "auto-sledgehammer"
51 "Run Sledgehammer automatically.")
53 (** Sledgehammer commands **)
55 fun add_fact_override ns : fact_override = {add = ns, del = [], only = false}
56 fun del_fact_override ns : fact_override = {add = [], del = ns, only = false}
57 fun only_fact_override ns : fact_override = {add = ns, del = [], only = true}
58 fun merge_fact_override_pairwise (r1 : fact_override) (r2 : fact_override) =
59 {add = #add r1 @ #add r2, del = #del r1 @ #del r2,
60 only = #only r1 andalso #only r2}
61 fun merge_fact_overrides rs =
62 fold merge_fact_override_pairwise rs (only_fact_override [])
66 val provers = Unsynchronized.ref ""
67 val timeout = Unsynchronized.ref 30
70 ProofGeneralPgip.add_preference Preferences.category_proof
71 (Preferences.string_pref provers
72 "Sledgehammer: Provers"
73 "Default automatic provers (separated by whitespace)")
76 ProofGeneralPgip.add_preference Preferences.category_proof
77 (Preferences.int_pref timeout
78 "Sledgehammer: Time Limit"
79 "ATPs will be interrupted after this time (in seconds)")
81 type raw_param = string * string list
83 val default_default_params =
86 ("overlord", "false"),
87 ("blocking", "false"),
88 ("type_enc", "smart"),
90 ("lam_trans", "smart"),
91 ("uncurried_aliases", "smart"),
93 ("fact_filter", "smart"),
94 ("max_facts", "smart"),
95 ("fact_thresholds", "0.45 0.85"),
96 ("max_mono_iters", "smart"),
97 ("max_new_mono_instances", "smart"),
98 ("isar_proof", "false"),
99 ("isar_shrink_factor", "1"),
101 ("minimize", "smart"),
102 ("preplay_timeout", "3")]
105 [("prover", ("provers", [])), (* legacy *)
106 ("max_relevant", ("max_facts", [])), (* legacy *)
107 ("dont_preplay", ("preplay_timeout", ["0"]))]
108 val negated_alias_params =
109 [("no_debug", "debug"),
110 ("quiet", "verbose"),
111 ("no_overlord", "overlord"),
112 ("non_blocking", "blocking"),
113 ("non_strict", "strict"),
114 ("no_uncurried_aliases", "uncurried_aliases"),
115 ("dont_learn", "learn"),
116 ("no_isar_proof", "isar_proof"),
117 ("dont_slice", "slice"),
118 ("dont_minimize", "minimize")]
120 val params_for_minimize =
121 ["debug", "verbose", "overlord", "type_enc", "strict", "lam_trans",
122 "uncurried_aliases", "max_mono_iters", "max_new_mono_instances",
123 "isar_proof", "isar_shrink_factor", "timeout", "preplay_timeout"]
125 val property_dependent_params = ["provers", "timeout"]
127 fun is_known_raw_param s =
128 AList.defined (op =) default_default_params s orelse
129 AList.defined (op =) alias_params s orelse
130 AList.defined (op =) negated_alias_params s orelse
131 member (op =) property_dependent_params s orelse s = "expect"
133 fun is_prover_list ctxt s =
134 case space_explode " " s of
135 ss as _ :: _ => forall (is_prover_supported ctxt) ss
138 fun unalias_raw_param (name, value) =
139 case AList.lookup (op =) alias_params name of
140 SOME (name', []) => (name', value)
141 | SOME (param' as (name', _)) =>
142 if value <> ["false"] then
145 error ("Parameter " ^ quote name ^ " cannot be set to \"false\" \
146 \(cf. " ^ quote name' ^ ").")
148 case AList.lookup (op =) negated_alias_params name of
149 SOME name' => (name', case value of
150 ["false"] => ["true"]
151 | ["true"] => ["false"]
154 | NONE => (name, value)
156 val any_type_enc = type_enc_from_string Strict "erased"
158 (* "provers =", "type_enc =", "lam_trans =", "fact_filter =", and "max_facts ="
159 can be omitted. For the last four, this is a secret feature. *)
160 fun normalize_raw_param ctxt =
162 #> (fn (name, value) =>
163 if is_known_raw_param name then
165 else if is_prover_list ctxt name andalso null value then
167 else if can (type_enc_from_string Strict) name andalso null value then
169 else if can (trans_lams_from_string ctxt any_type_enc) name andalso
171 ("lam_trans", [name])
172 else if member (op =) fact_filters name then
173 ("fact_filter", [name])
174 else if can Int.fromString name then
175 ("max_facts", [name])
177 error ("Unknown parameter: " ^ quote name ^ "."))
180 (* Ensures that type encodings such as "mono_native?" and "poly_guards!!" are
182 val implode_param = strip_spaces_except_between_idents o space_implode " "
184 structure Data = Theory_Data
186 type T = raw_param list
187 val empty = default_default_params |> map (apsnd single)
189 fun merge data : T = AList.merge (op =) (K true) data
192 fun remotify_prover_if_supported_and_not_already_remote ctxt name =
193 if String.isPrefix remote_prefix name then
196 let val remote_name = remote_prefix ^ name in
197 if is_prover_supported ctxt remote_name then SOME remote_name else NONE
200 fun remotify_prover_if_not_installed ctxt name =
201 if is_prover_supported ctxt name andalso is_prover_installed ctxt name then
204 remotify_prover_if_supported_and_not_already_remote ctxt name
206 fun avoid_too_many_threads _ _ [] = []
207 | avoid_too_many_threads _ (0, 0) _ = []
208 | avoid_too_many_threads ctxt (0, max_remote) provers =
210 |> map_filter (remotify_prover_if_supported_and_not_already_remote ctxt)
212 | avoid_too_many_threads _ (max_local, 0) provers =
214 |> filter_out (String.isPrefix remote_prefix)
216 | avoid_too_many_threads ctxt max_local_and_remote (prover :: provers) =
218 val max_local_and_remote =
220 |> (if String.isPrefix remote_prefix prover then apsnd else apfst)
222 in prover :: avoid_too_many_threads ctxt max_local_and_remote provers end
224 val max_default_remote_threads = 4
226 (* The first ATP of the list is used by Auto Sledgehammer. Because of the low
227 timeout, it makes sense to put E first. *)
228 fun default_provers_param_value ctxt =
229 [eN, spassN, vampireN, z3N, e_sineN, waldmeisterN, yicesN]
230 |> map_filter (remotify_prover_if_not_installed ctxt)
231 |> avoid_too_many_threads ctxt (Multithreading.max_threads_value (),
232 max_default_remote_threads)
235 fun set_default_raw_param param thy =
236 let val ctxt = Proof_Context.init_global thy in
237 thy |> Data.map (AList.update (op =) (normalize_raw_param ctxt param))
239 fun default_raw_params ctxt =
240 let val thy = Proof_Context.theory_of ctxt in
242 |> fold (AList.default (op =))
243 [("provers", [case !provers of
244 "" => default_provers_param_value ctxt
246 ("timeout", let val timeout = !timeout in
247 [if timeout <= 0 then "none"
248 else string_of_int timeout]
252 val the_timeout = the_default infinite_timeout
254 fun extract_params mode default_params override_params =
256 val raw_params = rev override_params @ rev default_params
257 val lookup = Option.map implode_param o AList.lookup (op =) raw_params
258 val lookup_string = the_default "" o lookup
259 fun general_lookup_bool option default_value name =
261 SOME s => parse_bool_option option name s
262 | NONE => default_value
263 val lookup_bool = the o general_lookup_bool false (SOME false)
264 fun lookup_time name =
266 SOME s => parse_time_option name s
268 fun lookup_int name =
271 | SOME s => case Int.fromString s of
273 | NONE => error ("Parameter " ^ quote name ^
274 " must be assigned an integer value.")
275 fun lookup_real_pair name =
278 | SOME s => case s |> space_explode " " |> map Real.fromString of
279 [SOME r1, SOME r2] => (r1, r2)
280 | _ => error ("Parameter " ^ quote name ^
281 "must be assigned a pair of floating-point \
282 \values (e.g., \"0.6 0.95\")")
283 fun lookup_option lookup' name =
286 | _ => SOME (lookup' name)
287 val debug = mode <> Auto_Try andalso lookup_bool "debug"
288 val verbose = debug orelse (mode <> Auto_Try andalso lookup_bool "verbose")
289 val overlord = lookup_bool "overlord"
291 Isabelle_Process.is_active () orelse mode <> Normal orelse debug orelse
292 lookup_bool "blocking"
293 val provers = lookup_string "provers" |> space_explode " "
294 |> mode = Auto_Try ? single o hd
296 if mode = Auto_Try then
298 else case lookup_string "type_enc" of
300 | s => (type_enc_from_string Strict s; SOME s)
301 val strict = mode = Auto_Try orelse lookup_bool "strict"
302 val lam_trans = lookup_option lookup_string "lam_trans"
303 val uncurried_aliases = lookup_option lookup_bool "uncurried_aliases"
304 val learn = lookup_bool "learn"
305 val fact_filter = lookup_option lookup_string "fact_filter"
306 val max_facts = lookup_option lookup_int "max_facts"
307 val fact_thresholds = lookup_real_pair "fact_thresholds"
308 val max_mono_iters = lookup_option lookup_int "max_mono_iters"
309 val max_new_mono_instances =
310 lookup_option lookup_int "max_new_mono_instances"
311 val isar_proof = lookup_bool "isar_proof"
312 val isar_shrink_factor = Int.max (1, lookup_int "isar_shrink_factor")
313 val slice = mode <> Auto_Try andalso lookup_bool "slice"
315 if mode = Auto_Try then NONE else lookup_option lookup_bool "minimize"
317 (if mode = Auto_Try then NONE else lookup_time "timeout") |> the_timeout
318 val preplay_timeout =
319 if mode = Auto_Try then Time.zeroTime
320 else lookup_time "preplay_timeout" |> the_timeout
321 val expect = lookup_string "expect"
323 {debug = debug, verbose = verbose, overlord = overlord, blocking = blocking,
324 provers = provers, type_enc = type_enc, strict = strict,
325 lam_trans = lam_trans, uncurried_aliases = uncurried_aliases,
326 learn = learn, fact_filter = fact_filter, max_facts = max_facts,
327 fact_thresholds = fact_thresholds, max_mono_iters = max_mono_iters,
328 max_new_mono_instances = max_new_mono_instances, isar_proof = isar_proof,
329 isar_shrink_factor = isar_shrink_factor, slice = slice,
330 minimize = minimize, timeout = timeout, preplay_timeout = preplay_timeout,
334 fun get_params mode = extract_params mode o default_raw_params
335 fun default_params thy = get_params Normal thy o map (apsnd single)
337 (* Sledgehammer the given subgoal *)
339 val default_minimize_prover = metisN
341 fun is_raw_param_relevant_for_minimize (name, _) =
342 member (op =) params_for_minimize name
343 fun string_for_raw_param (key, values) =
344 key ^ (case implode_param values of "" => "" | value => " = " ^ value)
346 fun minimize_command override_params i more_override_params prover_name
351 |> filter_out (AList.defined (op =) more_override_params o fst)) @
353 |> filter is_raw_param_relevant_for_minimize
354 |> map string_for_raw_param
355 |> (if prover_name = default_minimize_prover then I else cons prover_name)
356 |> space_implode ", "
358 sledgehammerN ^ " " ^ minN ^
359 (if params = "" then "" else enclose " [" "]" params) ^
360 " (" ^ space_implode " " fact_names ^ ")" ^
361 (if i = 1 then "" else " " ^ string_of_int i)
364 val default_learn_atp_timeout = 0.5
366 fun hammer_away override_params subcommand opt_i fact_override state =
368 val ctxt = Proof.context_of state
369 val override_params = override_params |> map (normalize_raw_param ctxt)
371 if subcommand = runN then
372 let val i = the_default 1 opt_i in
373 run_sledgehammer (get_params Normal ctxt override_params) Normal i
374 fact_override (minimize_command override_params i)
378 else if subcommand = minN then
380 val ctxt = ctxt |> Config.put instantiate_inducts false
381 val i = the_default 1 opt_i
383 get_params Minimize ctxt (("provers", [default_minimize_prover]) ::
385 val goal = prop_of (#goal (Proof.goal state))
386 val facts = nearly_all_facts ctxt false fact_override Symtab.empty
387 Termtab.empty [] [] goal
388 fun learn prover = mash_learn_proof ctxt params prover goal facts
389 in run_minimize params learn i (#add fact_override) state end
390 else if subcommand = messagesN then
392 else if subcommand = supported_proversN then
393 supported_provers ctxt
394 else if subcommand = kill_proversN then
396 else if subcommand = running_proversN then
398 else if subcommand = unlearnN then
400 else if subcommand = learn_isarN orelse subcommand = learn_atpN orelse
401 subcommand = relearn_isarN orelse subcommand = relearn_atpN then
402 (if subcommand = relearn_isarN orelse subcommand = relearn_atpN then
406 mash_learn ctxt (get_params Normal ctxt
408 [string_of_real default_learn_atp_timeout]),
409 ("slice", ["false"])] @
411 [("minimize", ["true"]),
412 ("preplay_timeout", ["0"])]))
413 fact_override (#facts (Proof.goal state))
414 (subcommand = learn_atpN orelse subcommand = relearn_atpN))
415 else if subcommand = kill_learnersN then
417 else if subcommand = running_learnersN then
419 else if subcommand = refresh_tptpN then
420 refresh_systems_on_tptp ()
422 error ("Unknown subcommand: " ^ quote subcommand ^ ".")
425 fun sledgehammer_trans (((subcommand, params), fact_override), opt_i) =
426 Toplevel.keep (hammer_away params subcommand opt_i fact_override
429 fun string_for_raw_param (name, value) = name ^ " = " ^ implode_param value
431 fun sledgehammer_params_trans params =
433 (fold set_default_raw_param params
435 let val ctxt = Proof_Context.init_global thy in
436 writeln ("Default parameters for Sledgehammer:\n" ^
437 (case default_raw_params ctxt |> rev of
440 params |> map string_for_raw_param
441 |> sort_strings |> cat_lines))
444 val parse_query_bang = @{keyword "?"} || @{keyword "!"} || @{keyword "!!"}
446 Scan.repeat1 (Parse.typ_group || parse_query_bang) >> implode_param
448 Scan.repeat1 (Parse.xname || Parse.float_number || parse_query_bang)
449 val parse_param = parse_key -- Scan.optional (@{keyword "="} |-- parse_value) []
450 val parse_params = Scan.optional (Args.bracks (Parse.list parse_param)) []
451 val parse_fact_refs =
452 Scan.repeat1 (Scan.unless (Parse.name -- Args.colon) Parse_Spec.xthm)
453 val parse_fact_override_chunk =
454 (Args.add |-- Args.colon |-- parse_fact_refs >> add_fact_override)
455 || (Args.del |-- Args.colon |-- parse_fact_refs >> del_fact_override)
456 || (parse_fact_refs >> only_fact_override)
457 val parse_fact_override =
458 Scan.optional (Args.parens (Scan.repeat parse_fact_override_chunk
459 >> merge_fact_overrides))
463 Outer_Syntax.improper_command @{command_spec "sledgehammer"}
464 "search for first-order proof using automatic theorem provers"
465 ((Scan.optional Parse.short_ident runN -- parse_params
466 -- parse_fact_override -- Scan.option Parse.nat) #>> sledgehammer_trans)
468 Outer_Syntax.command @{command_spec "sledgehammer_params"}
469 "set and display the default parameters for Sledgehammer"
470 (parse_params #>> sledgehammer_params_trans)
472 fun try_sledgehammer auto state =
474 val ctxt = Proof.context_of state
475 val mode = if auto then Auto_Try else Try
478 run_sledgehammer (get_params mode ctxt []) mode i no_fact_override
479 (minimize_command [] i) state
482 val setup = Try.register_tool (sledgehammerN, (40, auto, try_sledgehammer))