wenzelm@32327
|
1 |
(* Title: HOL/Tools/ATP_Manager/atp_manager.ML
|
wenzelm@28477
|
2 |
Author: Fabian Immler, TU Muenchen
|
wenzelm@32996
|
3 |
Author: Makarius
|
wenzelm@28477
|
4 |
|
wenzelm@32996
|
5 |
Central manager component for ATP threads.
|
wenzelm@28477
|
6 |
*)
|
wenzelm@28477
|
7 |
|
wenzelm@28477
|
8 |
signature ATP_MANAGER =
|
wenzelm@28477
|
9 |
sig
|
blanchet@35867
|
10 |
type problem =
|
blanchet@35867
|
11 |
{with_full_types: bool,
|
blanchet@35867
|
12 |
subgoal: int,
|
blanchet@35867
|
13 |
goal: Proof.context * (thm list * thm),
|
blanchet@35867
|
14 |
axiom_clauses: (thm * (string * int)) list option,
|
blanchet@35867
|
15 |
filtered_clauses: (thm * (string * int)) list option}
|
blanchet@35867
|
16 |
val problem_of_goal: bool -> int -> Proof.context * (thm list * thm) -> problem
|
blanchet@35867
|
17 |
type prover_result =
|
blanchet@35867
|
18 |
{success: bool,
|
blanchet@35867
|
19 |
message: string,
|
blanchet@35867
|
20 |
theorem_names: string list,
|
blanchet@35867
|
21 |
runtime: int,
|
blanchet@35867
|
22 |
proof: string,
|
blanchet@35867
|
23 |
internal_thm_names: string Vector.vector,
|
blanchet@35867
|
24 |
filtered_clauses: (thm * (string * int)) list}
|
blanchet@35867
|
25 |
type prover = int -> problem -> prover_result
|
blanchet@35867
|
26 |
|
wenzelm@32937
|
27 |
val atps: string Unsynchronized.ref
|
wenzelm@32937
|
28 |
val get_atps: unit -> string list
|
wenzelm@32937
|
29 |
val timeout: int Unsynchronized.ref
|
wenzelm@32937
|
30 |
val full_types: bool Unsynchronized.ref
|
wenzelm@28586
|
31 |
val kill: unit -> unit
|
wenzelm@28586
|
32 |
val info: unit -> unit
|
wenzelm@29112
|
33 |
val messages: int option -> unit
|
blanchet@35867
|
34 |
val add_prover: string * prover -> theory -> theory
|
blanchet@35867
|
35 |
val get_prover: theory -> string -> prover option
|
wenzelm@28484
|
36 |
val print_provers: theory -> unit
|
wenzelm@28571
|
37 |
val sledgehammer: string list -> Proof.state -> unit
|
wenzelm@28477
|
38 |
end;
|
wenzelm@28477
|
39 |
|
blanchet@35865
|
40 |
structure ATP_Manager : ATP_MANAGER =
|
wenzelm@28477
|
41 |
struct
|
wenzelm@28477
|
42 |
|
blanchet@35867
|
43 |
(** problems, results, and provers **)
|
blanchet@35867
|
44 |
|
blanchet@35867
|
45 |
type problem =
|
blanchet@35867
|
46 |
{with_full_types: bool,
|
blanchet@35867
|
47 |
subgoal: int,
|
blanchet@35867
|
48 |
goal: Proof.context * (thm list * thm),
|
blanchet@35867
|
49 |
axiom_clauses: (thm * (string * int)) list option,
|
blanchet@35867
|
50 |
filtered_clauses: (thm * (string * int)) list option};
|
blanchet@35867
|
51 |
|
blanchet@35867
|
52 |
fun problem_of_goal with_full_types subgoal goal : problem =
|
blanchet@35867
|
53 |
{with_full_types = with_full_types,
|
blanchet@35867
|
54 |
subgoal = subgoal,
|
blanchet@35867
|
55 |
goal = goal,
|
blanchet@35867
|
56 |
axiom_clauses = NONE,
|
blanchet@35867
|
57 |
filtered_clauses = NONE};
|
blanchet@35867
|
58 |
|
blanchet@35867
|
59 |
type prover_result =
|
blanchet@35867
|
60 |
{success: bool,
|
blanchet@35867
|
61 |
message: string,
|
blanchet@35867
|
62 |
theorem_names: string list, (*relevant theorems*)
|
blanchet@35867
|
63 |
runtime: int, (*user time of the ATP, in milliseconds*)
|
blanchet@35867
|
64 |
proof: string,
|
blanchet@35867
|
65 |
internal_thm_names: string Vector.vector,
|
blanchet@35867
|
66 |
filtered_clauses: (thm * (string * int)) list};
|
blanchet@35867
|
67 |
|
blanchet@35867
|
68 |
type prover = int -> problem -> prover_result;
|
blanchet@35867
|
69 |
|
blanchet@35867
|
70 |
|
wenzelm@28586
|
71 |
(** preferences **)
|
wenzelm@28586
|
72 |
|
wenzelm@29112
|
73 |
val message_store_limit = 20;
|
wenzelm@29112
|
74 |
val message_display_limit = 5;
|
wenzelm@29112
|
75 |
|
wenzelm@32937
|
76 |
val atps = Unsynchronized.ref "e spass remote_vampire";
|
wenzelm@32937
|
77 |
fun get_atps () = String.tokens (Symbol.is_ascii_blank o String.str) (! atps);
|
wenzelm@28586
|
78 |
|
wenzelm@32740
|
79 |
val timeout = Unsynchronized.ref 60;
|
wenzelm@32740
|
80 |
val full_types = Unsynchronized.ref false;
|
wenzelm@28586
|
81 |
|
wenzelm@28586
|
82 |
val _ =
|
wenzelm@30982
|
83 |
ProofGeneralPgip.add_preference Preferences.category_proof
|
wenzelm@28586
|
84 |
(Preferences.string_pref atps
|
wenzelm@28589
|
85 |
"ATP: provers" "Default automatic provers (separated by whitespace)");
|
wenzelm@28586
|
86 |
|
wenzelm@30982
|
87 |
val _ =
|
wenzelm@30982
|
88 |
ProofGeneralPgip.add_preference Preferences.category_proof
|
wenzelm@28586
|
89 |
(Preferences.int_pref timeout
|
wenzelm@28589
|
90 |
"ATP: timeout" "ATPs will be interrupted after this time (in seconds)");
|
wenzelm@28586
|
91 |
|
nipkow@31791
|
92 |
val _ =
|
nipkow@31791
|
93 |
ProofGeneralPgip.add_preference Preferences.category_proof
|
nipkow@31791
|
94 |
(Preferences.bool_pref full_types
|
nipkow@31791
|
95 |
"ATP: full types" "ATPs will use full type information");
|
nipkow@31791
|
96 |
|
wenzelm@28586
|
97 |
|
wenzelm@28586
|
98 |
|
wenzelm@28586
|
99 |
(** thread management **)
|
wenzelm@28586
|
100 |
|
wenzelm@28582
|
101 |
(* data structures over threads *)
|
wenzelm@28582
|
102 |
|
wenzelm@32939
|
103 |
structure Thread_Heap = Heap
|
wenzelm@28582
|
104 |
(
|
wenzelm@28582
|
105 |
type elem = Time.time * Thread.thread;
|
wenzelm@28582
|
106 |
fun ord ((a, _), (b, _)) = Time.compare (a, b);
|
wenzelm@28595
|
107 |
);
|
wenzelm@28582
|
108 |
|
wenzelm@31368
|
109 |
fun lookup_thread xs = AList.lookup Thread.equal xs;
|
wenzelm@32996
|
110 |
fun delete_thread xs = AList.delete Thread.equal xs;
|
wenzelm@31368
|
111 |
fun update_thread xs = AList.update Thread.equal xs;
|
wenzelm@28582
|
112 |
|
wenzelm@28582
|
113 |
|
wenzelm@28582
|
114 |
(* state of thread manager *)
|
wenzelm@28477
|
115 |
|
wenzelm@32938
|
116 |
type state =
|
wenzelm@32938
|
117 |
{manager: Thread.thread option,
|
wenzelm@32938
|
118 |
timeout_heap: Thread_Heap.T,
|
wenzelm@28582
|
119 |
active: (Thread.thread * (Time.time * Time.time * string)) list,
|
wenzelm@32996
|
120 |
cancelling: (Thread.thread * (Time.time * string)) list,
|
immler@29620
|
121 |
messages: string list,
|
immler@29620
|
122 |
store: string list};
|
wenzelm@28582
|
123 |
|
wenzelm@32996
|
124 |
fun make_state manager timeout_heap active cancelling messages store : state =
|
wenzelm@32996
|
125 |
{manager = manager, timeout_heap = timeout_heap, active = active,
|
wenzelm@32996
|
126 |
cancelling = cancelling, messages = messages, store = store};
|
wenzelm@28582
|
127 |
|
wenzelm@32938
|
128 |
val global_state = Synchronized.var "atp_manager"
|
wenzelm@32996
|
129 |
(make_state NONE Thread_Heap.empty [] [] [] []);
|
wenzelm@28582
|
130 |
|
wenzelm@31368
|
131 |
|
wenzelm@32996
|
132 |
(* unregister ATP thread *)
|
wenzelm@28582
|
133 |
|
wenzelm@33312
|
134 |
fun unregister message thread = Synchronized.change global_state
|
wenzelm@32996
|
135 |
(fn state as {manager, timeout_heap, active, cancelling, messages, store} =>
|
wenzelm@29150
|
136 |
(case lookup_thread active thread of
|
wenzelm@35569
|
137 |
SOME (_, _, description) =>
|
wenzelm@29150
|
138 |
let
|
wenzelm@32996
|
139 |
val active' = delete_thread thread active;
|
wenzelm@32996
|
140 |
val cancelling' = (thread, (Time.now (), description)) :: cancelling;
|
wenzelm@32996
|
141 |
val message' = description ^ "\n" ^ message;
|
wenzelm@32996
|
142 |
val messages' = message' :: messages;
|
immler@29620
|
143 |
val store' = message' ::
|
immler@29620
|
144 |
(if length store <= message_store_limit then store
|
wenzelm@32938
|
145 |
else #1 (chop message_store_limit store));
|
wenzelm@32996
|
146 |
in make_state manager timeout_heap active' cancelling' messages' store' end
|
wenzelm@30800
|
147 |
| NONE => state));
|
wenzelm@28582
|
148 |
|
wenzelm@28582
|
149 |
|
wenzelm@32996
|
150 |
(* main manager thread -- only one may exist *)
|
wenzelm@28595
|
151 |
|
wenzelm@32996
|
152 |
val min_wait_time = Time.fromMilliseconds 300;
|
wenzelm@32996
|
153 |
val max_wait_time = Time.fromSeconds 10;
|
wenzelm@28595
|
154 |
|
immler@29620
|
155 |
fun print_new_messages () =
|
wenzelm@32938
|
156 |
let val msgs = Synchronized.change_result global_state
|
wenzelm@32996
|
157 |
(fn {manager, timeout_heap, active, cancelling, messages, store} =>
|
wenzelm@32996
|
158 |
(messages, make_state manager timeout_heap active cancelling [] store))
|
wenzelm@30800
|
159 |
in
|
wenzelm@32938
|
160 |
if null msgs then ()
|
wenzelm@32938
|
161 |
else priority ("Sledgehammer: " ^ space_implode "\n\n" msgs)
|
wenzelm@30800
|
162 |
end;
|
immler@29620
|
163 |
|
wenzelm@32938
|
164 |
fun check_thread_manager () = Synchronized.change global_state
|
wenzelm@32996
|
165 |
(fn state as {manager, timeout_heap, active, cancelling, messages, store} =>
|
wenzelm@32996
|
166 |
if (case manager of SOME thread => Thread.isActive thread | NONE => false) then state
|
wenzelm@33604
|
167 |
else let val manager = SOME (Toplevel.thread false (fn () =>
|
wenzelm@32938
|
168 |
let
|
wenzelm@32938
|
169 |
fun time_limit timeout_heap =
|
wenzelm@32938
|
170 |
(case try Thread_Heap.min timeout_heap of
|
wenzelm@32938
|
171 |
NONE => Time.+ (Time.now (), max_wait_time)
|
wenzelm@32938
|
172 |
| SOME (time, _) => time);
|
wenzelm@28582
|
173 |
|
wenzelm@32938
|
174 |
(*action: find threads whose timeout is reached, and interrupt cancelling threads*)
|
wenzelm@32996
|
175 |
fun action {manager, timeout_heap, active, cancelling, messages, store} =
|
immler@30830
|
176 |
let val (timeout_threads, timeout_heap') =
|
wenzelm@32938
|
177 |
Thread_Heap.upto (Time.now (), Thread.self ()) timeout_heap;
|
immler@30830
|
178 |
in
|
wenzelm@32996
|
179 |
if null timeout_threads andalso null cancelling
|
immler@30830
|
180 |
then NONE
|
immler@30830
|
181 |
else
|
immler@30830
|
182 |
let
|
wenzelm@32938
|
183 |
val _ = List.app (SimpleThread.interrupt o #1) cancelling;
|
wenzelm@32938
|
184 |
val cancelling' = filter (Thread.isActive o #1) cancelling;
|
wenzelm@32996
|
185 |
val state' = make_state manager timeout_heap' active cancelling' messages store;
|
immler@30830
|
186 |
in SOME (map #2 timeout_threads, state') end
|
wenzelm@32938
|
187 |
end;
|
immler@30830
|
188 |
in
|
wenzelm@32938
|
189 |
while Synchronized.change_result global_state
|
wenzelm@32996
|
190 |
(fn state as {timeout_heap, active, cancelling, messages, store, ...} =>
|
wenzelm@32938
|
191 |
if null active andalso null cancelling andalso null messages
|
wenzelm@32996
|
192 |
then (false, make_state NONE timeout_heap active cancelling messages store)
|
wenzelm@32938
|
193 |
else (true, state))
|
immler@30830
|
194 |
do
|
wenzelm@32938
|
195 |
(Synchronized.timed_access global_state (SOME o time_limit o #timeout_heap) action
|
immler@30830
|
196 |
|> these
|
wenzelm@33312
|
197 |
|> List.app (unregister "Interrupted (reached timeout)");
|
immler@30830
|
198 |
print_new_messages ();
|
wenzelm@32938
|
199 |
(*give threads some time to respond to interrupt*)
|
immler@30830
|
200 |
OS.Process.sleep min_wait_time)
|
immler@30830
|
201 |
end))
|
wenzelm@32996
|
202 |
in make_state manager timeout_heap active cancelling messages store end);
|
wenzelm@28582
|
203 |
|
wenzelm@28582
|
204 |
|
wenzelm@32996
|
205 |
(* register ATP thread *)
|
wenzelm@28477
|
206 |
|
wenzelm@32996
|
207 |
fun register birth_time death_time (thread, desc) =
|
wenzelm@32938
|
208 |
(Synchronized.change global_state
|
wenzelm@32996
|
209 |
(fn {manager, timeout_heap, active, cancelling, messages, store} =>
|
wenzelm@29112
|
210 |
let
|
wenzelm@32996
|
211 |
val timeout_heap' = Thread_Heap.insert (death_time, thread) timeout_heap;
|
wenzelm@32996
|
212 |
val active' = update_thread (thread, (birth_time, death_time, desc)) active;
|
wenzelm@32996
|
213 |
val state' = make_state manager timeout_heap' active' cancelling messages store;
|
wenzelm@32938
|
214 |
in state' end);
|
immler@30798
|
215 |
check_thread_manager ());
|
wenzelm@28477
|
216 |
|
wenzelm@28477
|
217 |
|
wenzelm@28586
|
218 |
|
wenzelm@28586
|
219 |
(** user commands **)
|
wenzelm@28582
|
220 |
|
wenzelm@32996
|
221 |
(* kill *)
|
wenzelm@28586
|
222 |
|
wenzelm@32938
|
223 |
fun kill () = Synchronized.change global_state
|
wenzelm@32996
|
224 |
(fn {manager, timeout_heap, active, cancelling, messages, store} =>
|
wenzelm@32938
|
225 |
let
|
wenzelm@32996
|
226 |
val killing = map (fn (th, (_, _, desc)) => (th, (Time.now (), desc))) active;
|
wenzelm@32996
|
227 |
val state' = make_state manager timeout_heap [] (killing @ cancelling) messages store;
|
wenzelm@32938
|
228 |
in state' end);
|
wenzelm@28582
|
229 |
|
wenzelm@28582
|
230 |
|
wenzelm@32996
|
231 |
(* info *)
|
wenzelm@28582
|
232 |
|
wenzelm@32938
|
233 |
fun seconds time = string_of_int (Time.toSeconds time) ^ "s";
|
wenzelm@32938
|
234 |
|
wenzelm@28582
|
235 |
fun info () =
|
wenzelm@28582
|
236 |
let
|
wenzelm@32938
|
237 |
val {active, cancelling, ...} = Synchronized.value global_state;
|
wenzelm@29112
|
238 |
|
wenzelm@32938
|
239 |
val now = Time.now ();
|
wenzelm@32996
|
240 |
fun running_info (_, (birth_time, death_time, desc)) =
|
wenzelm@32938
|
241 |
"Running: " ^ seconds (Time.- (now, birth_time)) ^ " -- " ^
|
wenzelm@32996
|
242 |
seconds (Time.- (death_time, now)) ^ " to live:\n" ^ desc;
|
wenzelm@32996
|
243 |
fun cancelling_info (_, (deadth_time, desc)) =
|
wenzelm@32996
|
244 |
"Trying to interrupt thread since " ^ seconds (Time.- (now, deadth_time)) ^ ":\n" ^ desc;
|
wenzelm@29112
|
245 |
|
wenzelm@28589
|
246 |
val running =
|
wenzelm@28589
|
247 |
if null active then "No ATPs running."
|
wenzelm@32938
|
248 |
else space_implode "\n\n" ("Running ATPs:" :: map running_info active);
|
wenzelm@28589
|
249 |
val interrupting =
|
wenzelm@28589
|
250 |
if null cancelling then ""
|
wenzelm@32938
|
251 |
else
|
wenzelm@32938
|
252 |
space_implode "\n\n"
|
wenzelm@32938
|
253 |
("Trying to interrupt the following ATPs:" :: map cancelling_info cancelling);
|
wenzelm@29112
|
254 |
|
wenzelm@28582
|
255 |
in writeln (running ^ "\n" ^ interrupting) end;
|
wenzelm@28582
|
256 |
|
wenzelm@29112
|
257 |
fun messages opt_limit =
|
wenzelm@29112
|
258 |
let
|
wenzelm@29112
|
259 |
val limit = the_default message_display_limit opt_limit;
|
wenzelm@32938
|
260 |
val {store, ...} = Synchronized.value global_state;
|
wenzelm@32938
|
261 |
val header =
|
wenzelm@32938
|
262 |
"Recent ATP messages" ^
|
wenzelm@32938
|
263 |
(if length store <= limit then ":" else " (" ^ string_of_int limit ^ " displayed):");
|
wenzelm@32938
|
264 |
in writeln (space_implode "\n\n" (header :: #1 (chop limit store))) end;
|
wenzelm@29112
|
265 |
|
wenzelm@28582
|
266 |
|
wenzelm@28477
|
267 |
|
wenzelm@28586
|
268 |
(** The Sledgehammer **)
|
wenzelm@28477
|
269 |
|
wenzelm@28582
|
270 |
(* named provers *)
|
wenzelm@28484
|
271 |
|
wenzelm@28582
|
272 |
fun err_dup_prover name = error ("Duplicate prover: " ^ quote name);
|
wenzelm@28477
|
273 |
|
wenzelm@33522
|
274 |
structure Provers = Theory_Data
|
wenzelm@28582
|
275 |
(
|
blanchet@35867
|
276 |
type T = (prover * stamp) Symtab.table;
|
wenzelm@32938
|
277 |
val empty = Symtab.empty;
|
wenzelm@32938
|
278 |
val extend = I;
|
wenzelm@33522
|
279 |
fun merge data : T = Symtab.merge (eq_snd op =) data
|
wenzelm@32938
|
280 |
handle Symtab.DUP dup => err_dup_prover dup;
|
wenzelm@28582
|
281 |
);
|
wenzelm@28484
|
282 |
|
boehmes@32864
|
283 |
fun add_prover (name, prover) thy =
|
wenzelm@28595
|
284 |
Provers.map (Symtab.update_new (name, (prover, stamp ()))) thy
|
wenzelm@28582
|
285 |
handle Symtab.DUP dup => err_dup_prover dup;
|
wenzelm@28582
|
286 |
|
wenzelm@32995
|
287 |
fun get_prover thy name =
|
wenzelm@32995
|
288 |
Option.map #1 (Symtab.lookup (Provers.get thy) name);
|
wenzelm@32995
|
289 |
|
wenzelm@28582
|
290 |
fun print_provers thy = Pretty.writeln
|
wenzelm@28582
|
291 |
(Pretty.strs ("external provers:" :: sort_strings (Symtab.keys (Provers.get thy))));
|
wenzelm@28571
|
292 |
|
wenzelm@28586
|
293 |
|
wenzelm@28595
|
294 |
(* start prover thread *)
|
wenzelm@28484
|
295 |
|
wenzelm@32996
|
296 |
fun start_prover name birth_time death_time i proof_state =
|
wenzelm@32947
|
297 |
(case get_prover (Proof.theory_of proof_state) name of
|
wenzelm@28595
|
298 |
NONE => warning ("Unknown external prover: " ^ quote name)
|
immler@31037
|
299 |
| SOME prover =>
|
wenzelm@28595
|
300 |
let
|
wenzelm@35592
|
301 |
val {context = ctxt, facts, goal} = Proof.goal proof_state;
|
wenzelm@28595
|
302 |
val desc =
|
wenzelm@28595
|
303 |
"external prover " ^ quote name ^ " for subgoal " ^ string_of_int i ^ ":\n" ^
|
wenzelm@32938
|
304 |
Syntax.string_of_term ctxt (Thm.term_of (Thm.cprem_of goal i));
|
wenzelm@32996
|
305 |
|
wenzelm@33604
|
306 |
val _ = Toplevel.thread true (fn () =>
|
wenzelm@28595
|
307 |
let
|
wenzelm@32996
|
308 |
val _ = register birth_time death_time (Thread.self (), desc);
|
blanchet@35867
|
309 |
val problem = problem_of_goal (! full_types) i (ctxt, (facts, goal));
|
wenzelm@33312
|
310 |
val message = #message (prover (! timeout) problem)
|
blanchet@35865
|
311 |
handle Sledgehammer_HOL_Clause.TRIVIAL => (* FIXME !? *)
|
wenzelm@33312
|
312 |
"Empty clause: Try this command: " ^ Markup.markup Markup.sendback "apply metis"
|
wenzelm@33312
|
313 |
| ERROR msg => ("Error: " ^ msg);
|
wenzelm@33312
|
314 |
val _ = unregister message (Thread.self ());
|
wenzelm@35569
|
315 |
in () end);
|
wenzelm@28595
|
316 |
in () end);
|
wenzelm@28582
|
317 |
|
wenzelm@28582
|
318 |
|
wenzelm@28582
|
319 |
(* sledghammer for first subgoal *)
|
wenzelm@28582
|
320 |
|
wenzelm@28582
|
321 |
fun sledgehammer names proof_state =
|
wenzelm@28582
|
322 |
let
|
wenzelm@32938
|
323 |
val provers = if null names then get_atps () else names;
|
wenzelm@32996
|
324 |
val birth_time = Time.now ();
|
wenzelm@32996
|
325 |
val death_time = Time.+ (birth_time, Time.fromSeconds (! timeout));
|
wenzelm@32996
|
326 |
val _ = kill (); (*RACE wrt. other invocations of sledgehammer*)
|
wenzelm@32996
|
327 |
val _ = List.app (fn name => start_prover name birth_time death_time 1 proof_state) provers;
|
wenzelm@32996
|
328 |
in () end;
|
wenzelm@28582
|
329 |
|
wenzelm@28582
|
330 |
end;
|