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 = ATP_Manager.params
11 val atps: string Unsynchronized.ref
12 val timeout: int Unsynchronized.ref
13 val full_types: bool Unsynchronized.ref
14 val default_params : theory -> (string * string) list -> params
17 structure Sledgehammer_Isar : SLEDGEHAMMER_ISAR =
20 open Sledgehammer_Util
21 open Sledgehammer_Fact_Preprocessor
24 open Sledgehammer_Fact_Minimizer
26 (** Sledgehammer commands **)
28 fun add_to_relevance_override ns : relevance_override =
29 {add = ns, del = [], only = false}
30 fun del_from_relevance_override ns : relevance_override =
31 {add = [], del = ns, only = false}
32 fun only_relevance_override ns : relevance_override =
33 {add = ns, del = [], only = true}
34 fun merge_relevance_override_pairwise (r1 : relevance_override)
35 (r2 : relevance_override) =
36 {add = #add r1 @ #add r2, del = #del r1 @ #del r2,
37 only = #only r1 andalso #only r2}
38 fun merge_relevance_overrides rs =
39 fold merge_relevance_override_pairwise rs (only_relevance_override [])
43 val atps = Unsynchronized.ref ""
44 val timeout = Unsynchronized.ref 60
45 val full_types = Unsynchronized.ref false
48 ProofGeneralPgip.add_preference Preferences.category_proof
49 (Preferences.string_pref atps
51 "Default automatic provers (separated by whitespace)")
54 ProofGeneralPgip.add_preference Preferences.category_proof
55 (Preferences.int_pref timeout
56 "Sledgehammer: Time Limit"
57 "ATPs will be interrupted after this time (in seconds)")
60 ProofGeneralPgip.add_preference Preferences.category_proof
61 (Preferences.bool_pref full_types
62 "Sledgehammer: Full Types" "ATPs will use full type information")
64 type raw_param = string * string list
66 val default_default_params =
69 ("overlord", "false"),
70 ("explicit_apply", "false"),
71 ("respect_no_atp", "true"),
72 ("relevance_threshold", "50"),
73 ("relevance_convergence", "320"),
74 ("theory_relevant", "smart"),
75 ("defs_relevant", "false"),
76 ("isar_proof", "false"),
77 ("isar_shrink_factor", "1"),
78 ("minimize_timeout", "5 s")]
82 val negated_alias_params =
83 [("no_debug", "debug"),
85 ("no_overlord", "overlord"),
86 ("partial_types", "full_types"),
87 ("implicit_apply", "explicit_apply"),
88 ("ignore_no_atp", "respect_no_atp"),
89 ("theory_irrelevant", "theory_relevant"),
90 ("defs_irrelevant", "defs_relevant"),
91 ("no_isar_proof", "isar_proof")]
93 val params_for_minimize =
94 ["debug", "verbose", "overlord", "full_types", "explicit_apply",
95 "isar_proof", "isar_shrink_factor", "minimize_timeout"]
97 val property_dependent_params = ["atps", "full_types", "timeout"]
99 fun is_known_raw_param s =
100 AList.defined (op =) default_default_params s orelse
101 AList.defined (op =) alias_params s orelse
102 AList.defined (op =) negated_alias_params s orelse
103 member (op =) property_dependent_params s
105 fun check_raw_param (s, _) =
106 if is_known_raw_param s then ()
107 else error ("Unknown parameter: " ^ quote s ^ ".")
109 fun unalias_raw_param (name, value) =
110 case AList.lookup (op =) alias_params name of
111 SOME name' => (name', value)
113 case AList.lookup (op =) negated_alias_params name of
114 SOME name' => (name', case value of
115 ["false"] => ["true"]
116 | ["true"] => ["false"]
119 | NONE => (name, value)
121 structure Data = Theory_Data(
122 type T = raw_param list
123 val empty = default_default_params |> map (apsnd single)
125 fun merge p : T = AList.merge (op =) (K true) p)
127 val set_default_raw_param = Data.map o AList.update (op =) o unalias_raw_param
128 fun default_raw_params thy =
130 |> fold (AList.default (op =))
131 [("atps", [case !atps of "" => default_atps_param_value () | s => s]),
132 ("full_types", [if !full_types then "true" else "false"]),
133 ("timeout", let val timeout = !timeout in
134 [if timeout <= 0 then "none"
135 else string_of_int timeout ^ " s"]
138 val infinity_time_in_secs = 60 * 60 * 24 * 365
139 val the_timeout = the_default (Time.fromSeconds infinity_time_in_secs)
141 fun extract_params default_params override_params =
143 val override_params = map unalias_raw_param override_params
144 val raw_params = rev override_params @ rev default_params
145 val lookup = Option.map (space_implode " ") o AList.lookup (op =) raw_params
146 val lookup_string = the_default "" o lookup
147 fun general_lookup_bool option default_value name =
149 SOME s => parse_bool_option option name s
150 | NONE => default_value
151 val lookup_bool = the o general_lookup_bool false (SOME false)
152 val lookup_bool_option = general_lookup_bool true NONE
153 fun lookup_time name =
154 the_timeout (case lookup name of
156 | SOME s => parse_time_option name s)
157 fun lookup_int name =
160 | SOME s => case Int.fromString s of
162 | NONE => error ("Parameter " ^ quote name ^
163 " must be assigned an integer value.")
164 val debug = lookup_bool "debug"
165 val verbose = debug orelse lookup_bool "verbose"
166 val overlord = lookup_bool "overlord"
167 val atps = lookup_string "atps" |> space_explode " "
168 val full_types = lookup_bool "full_types"
169 val explicit_apply = lookup_bool "explicit_apply"
170 val respect_no_atp = lookup_bool "respect_no_atp"
171 val relevance_threshold =
172 0.01 * Real.fromInt (lookup_int "relevance_threshold")
173 val relevance_convergence =
174 0.01 * Real.fromInt (lookup_int "relevance_convergence")
175 val theory_relevant = lookup_bool_option "theory_relevant"
176 val defs_relevant = lookup_bool "defs_relevant"
177 val isar_proof = lookup_bool "isar_proof"
178 val isar_shrink_factor = Int.max (1, lookup_int "isar_shrink_factor")
179 val timeout = lookup_time "timeout"
180 val minimize_timeout = lookup_time "minimize_timeout"
182 {debug = debug, verbose = verbose, overlord = overlord, atps = atps,
183 full_types = full_types, explicit_apply = explicit_apply,
184 respect_no_atp = respect_no_atp, relevance_threshold = relevance_threshold,
185 relevance_convergence = relevance_convergence,
186 theory_relevant = theory_relevant, defs_relevant = defs_relevant,
187 isar_proof = isar_proof, isar_shrink_factor = isar_shrink_factor,
188 timeout = timeout, minimize_timeout = minimize_timeout}
191 fun get_params thy = extract_params (default_raw_params thy)
192 fun default_params thy = get_params thy o map (apsnd single)
194 val subgoal_count = Logic.count_prems o prop_of o #goal o Proof.goal
196 (* Sledgehammer the given subgoal *)
198 fun run {atps = [], ...} _ _ _ _ = error "No ATP is set."
199 | run (params as {atps, timeout, ...}) i relevance_override minimize_command
201 case subgoal_count state of
202 0 => priority "No subgoal!"
205 val birth_time = Time.now ()
206 val death_time = Time.+ (birth_time, timeout)
208 val _ = priority "Sledgehammering..."
209 val _ = app (start_prover_thread params birth_time death_time i n
210 relevance_override minimize_command
214 fun minimize override_params i refs state =
216 val thy = Proof.theory_of state
217 val ctxt = Proof.context_of state
218 val chained_ths = #facts (Proof.goal state)
219 val name_thms_pairs = map (name_thms_pair_from_ref ctxt chained_ths) refs
221 case subgoal_count state of
222 0 => priority "No subgoal!"
225 priority (#2 (minimize_theorems (get_params thy override_params) i n
226 state name_thms_pairs)))
229 val sledgehammerN = "sledgehammer"
230 val sledgehammer_paramsN = "sledgehammer_params"
233 val minimizeN = "minimize"
234 val messagesN = "messages"
235 val available_atpsN = "available_atps"
236 val running_atpsN = "running_atps"
237 val kill_atpsN = "kill_atps"
238 val refresh_tptpN = "refresh_tptp"
240 fun minimizize_raw_param_name "timeout" = "minimize_timeout"
241 | minimizize_raw_param_name name = name
243 val is_raw_param_relevant_for_minimize =
244 member (op =) params_for_minimize o fst o unalias_raw_param
245 fun string_for_raw_param (key, values) =
246 key ^ (case space_implode " " values of "" => "" | value => " = " ^ value)
248 fun minimize_command override_params i atp_name fact_names =
249 sledgehammerN ^ " " ^ minimizeN ^ " [atp = " ^ atp_name ^
250 (override_params |> filter is_raw_param_relevant_for_minimize
251 |> implode o map (prefix ", " o string_for_raw_param)) ^
252 "] (" ^ space_implode " " fact_names ^ ")" ^
253 (if i = 1 then "" else " " ^ string_of_int i)
255 fun hammer_away override_params subcommand opt_i relevance_override state =
257 val thy = Proof.theory_of state
258 val _ = app check_raw_param override_params
260 if subcommand = runN then
261 let val i = the_default 1 opt_i in
262 run (get_params thy override_params) i relevance_override
263 (minimize_command override_params i) state
265 else if subcommand = minimizeN then
266 minimize (map (apfst minimizize_raw_param_name) override_params)
267 (the_default 1 opt_i) (#add relevance_override) state
268 else if subcommand = messagesN then
270 else if subcommand = available_atpsN then
272 else if subcommand = running_atpsN then
274 else if subcommand = kill_atpsN then
276 else if subcommand = refresh_tptpN then
277 refresh_systems_on_tptp ()
279 error ("Unknown subcommand: " ^ quote subcommand ^ ".")
282 fun sledgehammer_trans (((subcommand, params), relevance_override), opt_i) =
283 Toplevel.keep (hammer_away params subcommand opt_i relevance_override
286 fun string_for_raw_param (name, value) = name ^ " = " ^ space_implode " " value
288 fun sledgehammer_params_trans params =
290 (fold set_default_raw_param params
292 writeln ("Default parameters for Sledgehammer:\n" ^
293 (case rev (default_raw_params thy) of
296 (map check_raw_param params;
297 params |> map string_for_raw_param
298 |> sort_strings |> cat_lines)))))
300 val parse_key = Scan.repeat1 Parse.typ_group >> space_implode " "
301 val parse_value = Scan.repeat1 Parse.xname
302 val parse_param = parse_key -- Scan.optional (Parse.$$$ "=" |-- parse_value) []
303 val parse_params = Scan.optional (Args.bracks (Parse.list parse_param)) []
304 val parse_fact_refs =
305 Scan.repeat1 (Scan.unless (Parse.name -- Args.colon)
306 (Parse.xname -- Scan.option Attrib.thm_sel)
307 >> (fn (name, interval) =>
308 Facts.Named ((name, Position.none), interval)))
309 val parse_relevance_chunk =
310 (Args.add |-- Args.colon |-- parse_fact_refs >> add_to_relevance_override)
311 || (Args.del |-- Args.colon |-- parse_fact_refs
312 >> del_from_relevance_override)
313 || (parse_fact_refs >> only_relevance_override)
314 val parse_relevance_override =
315 Scan.optional (Args.parens (Scan.repeat parse_relevance_chunk
316 >> merge_relevance_overrides))
317 (add_to_relevance_override [])
318 val parse_sledgehammer_command =
319 (Scan.optional Parse.short_ident runN -- parse_params
320 -- parse_relevance_override -- Scan.option Parse.nat) #>> sledgehammer_trans
321 val parse_sledgehammer_params_command =
322 parse_params #>> sledgehammer_params_trans
325 Outer_Syntax.improper_command sledgehammerN
326 "search for first-order proof using automatic theorem provers" Keyword.diag
327 parse_sledgehammer_command
329 Outer_Syntax.command sledgehammer_paramsN
330 "set and display the default parameters for Sledgehammer" Keyword.thy_decl
331 parse_sledgehammer_params_command