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 =
21 open Sledgehammer_Util
22 open Sledgehammer_Fact_Filter
25 open Sledgehammer_Fact_Minimizer
27 (** Sledgehammer commands **)
29 fun add_to_relevance_override ns : relevance_override =
30 {add = ns, del = [], only = false}
31 fun del_from_relevance_override ns : relevance_override =
32 {add = [], del = ns, only = false}
33 fun only_relevance_override ns : relevance_override =
34 {add = ns, del = [], only = true}
35 fun merge_relevance_override_pairwise (r1 : relevance_override)
36 (r2 : relevance_override) =
37 {add = #add r1 @ #add r2, del = #del r1 @ #del r2,
38 only = #only r1 andalso #only r2}
39 fun merge_relevance_overrides rs =
40 fold merge_relevance_override_pairwise rs (only_relevance_override [])
44 val atps = Unsynchronized.ref ""
45 val timeout = Unsynchronized.ref 60
46 val full_types = Unsynchronized.ref false
49 ProofGeneralPgip.add_preference Preferences.category_proof
50 (Preferences.string_pref atps
52 "Default automatic provers (separated by whitespace)")
55 ProofGeneralPgip.add_preference Preferences.category_proof
56 (Preferences.int_pref timeout
57 "Sledgehammer: Time Limit"
58 "ATPs will be interrupted after this time (in seconds)")
61 ProofGeneralPgip.add_preference Preferences.category_proof
62 (Preferences.bool_pref full_types
63 "Sledgehammer: Full Types" "ATPs will use full type information")
65 type raw_param = string * string list
67 val default_default_params =
70 ("overlord", "false"),
71 ("explicit_apply", "false"),
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 ("theory_irrelevant", "theory_relevant"),
89 ("defs_irrelevant", "defs_relevant"),
90 ("no_isar_proof", "isar_proof")]
92 val params_for_minimize =
93 ["debug", "verbose", "overlord", "full_types", "explicit_apply",
94 "isar_proof", "isar_shrink_factor", "minimize_timeout"]
96 val property_dependent_params = ["atps", "full_types", "timeout"]
98 fun is_known_raw_param s =
99 AList.defined (op =) default_default_params s orelse
100 AList.defined (op =) alias_params s orelse
101 AList.defined (op =) negated_alias_params s orelse
102 member (op =) property_dependent_params s
104 fun check_raw_param (s, _) =
105 if is_known_raw_param s then ()
106 else error ("Unknown parameter: " ^ quote s ^ ".")
108 fun unalias_raw_param (name, value) =
109 case AList.lookup (op =) alias_params name of
110 SOME name' => (name', value)
112 case AList.lookup (op =) negated_alias_params name of
113 SOME name' => (name', case value of
114 ["false"] => ["true"]
115 | ["true"] => ["false"]
118 | NONE => (name, value)
120 structure Data = Theory_Data(
121 type T = raw_param list
122 val empty = default_default_params |> map (apsnd single)
124 fun merge p : T = AList.merge (op =) (K true) p)
126 val set_default_raw_param = Data.map o AList.update (op =) o unalias_raw_param
127 fun default_raw_params thy =
129 |> fold (AList.default (op =))
130 [("atps", [case !atps of "" => default_atps_param_value () | s => s]),
131 ("full_types", [if !full_types then "true" else "false"]),
132 ("timeout", let val timeout = !timeout in
133 [if timeout <= 0 then "none"
134 else string_of_int timeout ^ " s"]
137 val infinity_time_in_secs = 60 * 60 * 24 * 365
138 val the_timeout = the_default (Time.fromSeconds infinity_time_in_secs)
140 fun extract_params default_params override_params =
142 val override_params = map unalias_raw_param override_params
143 val raw_params = rev override_params @ rev default_params
144 val lookup = Option.map (space_implode " ") o AList.lookup (op =) raw_params
145 val lookup_string = the_default "" o lookup
146 fun general_lookup_bool option default_value name =
148 SOME s => parse_bool_option option name s
149 | NONE => default_value
150 val lookup_bool = the o general_lookup_bool false (SOME false)
151 val lookup_bool_option = general_lookup_bool true NONE
152 fun lookup_time name =
153 the_timeout (case lookup name of
155 | SOME s => parse_time_option name s)
156 fun lookup_int name =
159 | SOME s => case Int.fromString s of
161 | NONE => error ("Parameter " ^ quote name ^
162 " must be assigned an integer value.")
163 val debug = lookup_bool "debug"
164 val verbose = debug orelse lookup_bool "verbose"
165 val overlord = lookup_bool "overlord"
166 val atps = lookup_string "atps" |> space_explode " "
167 val full_types = lookup_bool "full_types"
168 val explicit_apply = lookup_bool "explicit_apply"
169 val relevance_threshold =
170 0.01 * Real.fromInt (lookup_int "relevance_threshold")
171 val relevance_convergence =
172 0.01 * Real.fromInt (lookup_int "relevance_convergence")
173 val theory_relevant = lookup_bool_option "theory_relevant"
174 val defs_relevant = lookup_bool "defs_relevant"
175 val isar_proof = lookup_bool "isar_proof"
176 val isar_shrink_factor = Int.max (1, lookup_int "isar_shrink_factor")
177 val timeout = lookup_time "timeout"
178 val minimize_timeout = lookup_time "minimize_timeout"
180 {debug = debug, verbose = verbose, overlord = overlord, atps = atps,
181 full_types = full_types, explicit_apply = explicit_apply,
182 relevance_threshold = relevance_threshold,
183 relevance_convergence = relevance_convergence,
184 theory_relevant = theory_relevant, defs_relevant = defs_relevant,
185 isar_proof = isar_proof, isar_shrink_factor = isar_shrink_factor,
186 timeout = timeout, minimize_timeout = minimize_timeout}
189 fun get_params thy = extract_params (default_raw_params thy)
190 fun default_params thy = get_params thy o map (apsnd single)
192 val subgoal_count = Logic.count_prems o prop_of o #goal o Proof.goal
194 (* Sledgehammer the given subgoal *)
196 fun run {atps = [], ...} _ _ _ _ = error "No ATP is set."
197 | run (params as {atps, timeout, ...}) i relevance_override minimize_command
199 case subgoal_count state of
200 0 => priority "No subgoal!"
204 val _ = priority "Sledgehammering..."
205 val _ = app (start_prover_thread params i n relevance_override
206 minimize_command state) atps
209 fun minimize override_params i refs state =
211 val thy = Proof.theory_of state
212 val ctxt = Proof.context_of state
213 val chained_ths = #facts (Proof.goal state)
214 val name_thms_pairs = map (name_thms_pair_from_ref ctxt chained_ths) refs
216 case subgoal_count state of
217 0 => priority "No subgoal!"
220 priority (#2 (minimize_theorems (get_params thy override_params) i n
221 state name_thms_pairs)))
224 val sledgehammerN = "sledgehammer"
225 val sledgehammer_paramsN = "sledgehammer_params"
228 val minimizeN = "minimize"
229 val messagesN = "messages"
230 val available_atpsN = "available_atps"
231 val running_atpsN = "running_atps"
232 val kill_atpsN = "kill_atps"
233 val refresh_tptpN = "refresh_tptp"
235 fun minimizize_raw_param_name "timeout" = "minimize_timeout"
236 | minimizize_raw_param_name name = name
238 val is_raw_param_relevant_for_minimize =
239 member (op =) params_for_minimize o fst o unalias_raw_param
240 fun string_for_raw_param (key, values) =
241 key ^ (case space_implode " " values of "" => "" | value => " = " ^ value)
243 fun minimize_command override_params i atp_name fact_names =
244 sledgehammerN ^ " " ^ minimizeN ^ " [atp = " ^ atp_name ^
245 (override_params |> filter is_raw_param_relevant_for_minimize
246 |> implode o map (prefix ", " o string_for_raw_param)) ^
247 "] (" ^ space_implode " " fact_names ^ ")" ^
248 (if i = 1 then "" else " " ^ string_of_int i)
250 fun hammer_away override_params subcommand opt_i relevance_override state =
252 val thy = Proof.theory_of state
253 val _ = app check_raw_param override_params
255 if subcommand = runN then
256 let val i = the_default 1 opt_i in
257 run (get_params thy override_params) i relevance_override
258 (minimize_command override_params i) state
260 else if subcommand = minimizeN then
261 minimize (map (apfst minimizize_raw_param_name) override_params)
262 (the_default 1 opt_i) (#add relevance_override) state
263 else if subcommand = messagesN then
265 else if subcommand = available_atpsN then
267 else if subcommand = running_atpsN then
269 else if subcommand = kill_atpsN then
271 else if subcommand = refresh_tptpN then
272 refresh_systems_on_tptp ()
274 error ("Unknown subcommand: " ^ quote subcommand ^ ".")
277 fun sledgehammer_trans (((subcommand, params), relevance_override), opt_i) =
278 Toplevel.keep (hammer_away params subcommand opt_i relevance_override
281 fun string_for_raw_param (name, value) = name ^ " = " ^ space_implode " " value
283 fun sledgehammer_params_trans params =
285 (fold set_default_raw_param params
287 writeln ("Default parameters for Sledgehammer:\n" ^
288 (case rev (default_raw_params thy) of
291 (map check_raw_param params;
292 params |> map string_for_raw_param
293 |> sort_strings |> cat_lines)))))
295 val parse_key = Scan.repeat1 Parse.typ_group >> space_implode " "
296 val parse_value = Scan.repeat1 Parse.xname
297 val parse_param = parse_key -- Scan.optional (Parse.$$$ "=" |-- parse_value) []
298 val parse_params = Scan.optional (Args.bracks (Parse.list parse_param)) []
299 val parse_fact_refs =
300 Scan.repeat1 (Scan.unless (Parse.name -- Args.colon)
301 (Parse.xname -- Scan.option Attrib.thm_sel)
302 >> (fn (name, interval) =>
303 Facts.Named ((name, Position.none), interval)))
304 val parse_relevance_chunk =
305 (Args.add |-- Args.colon |-- parse_fact_refs >> add_to_relevance_override)
306 || (Args.del |-- Args.colon |-- parse_fact_refs
307 >> del_from_relevance_override)
308 || (parse_fact_refs >> only_relevance_override)
309 val parse_relevance_override =
310 Scan.optional (Args.parens (Scan.repeat parse_relevance_chunk
311 >> merge_relevance_overrides))
312 (add_to_relevance_override [])
313 val parse_sledgehammer_command =
314 (Scan.optional Parse.short_ident runN -- parse_params
315 -- parse_relevance_override -- Scan.option Parse.nat) #>> sledgehammer_trans
316 val parse_sledgehammer_params_command =
317 parse_params #>> sledgehammer_params_trans
320 Outer_Syntax.improper_command sledgehammerN
321 "search for first-order proof using automatic theorem provers" Keyword.diag
322 parse_sledgehammer_command
324 Outer_Syntax.command sledgehammer_paramsN
325 "set and display the default parameters for Sledgehammer" Keyword.thy_decl
326 parse_sledgehammer_params_command