--- a/src/HOL/Tools/res_atp.ML Wed Oct 05 10:56:06 2005 +0200
+++ b/src/HOL/Tools/res_atp.ML Wed Oct 05 11:18:06 2005 +0200
@@ -50,6 +50,8 @@
(* a special version of repeat_RS *)
fun repeat_someI_ex th = repeat_RS th someI_ex;
+fun writeln_strs _ [] = ()
+ | writeln_strs out (s::ss) = (TextIO.output (out, s); TextIO.output (out, "\n"); writeln_strs out ss);
(* write out a subgoal as tptp clauses to the file "xxxx_N"*)
fun tptp_inputs_tfrees thms pf n (axclauses,classrel_clauses,arity_clauses) =
@@ -61,8 +63,8 @@
val arity_cls = map ResClause.tptp_arity_clause arity_clauses
val out = TextIO.openOut(pf n)
in
- ResLib.writeln_strs out (List.concat (map ResClause.tptp_clause axclauses));
- ResLib.writeln_strs out (tfree_clss @ tptp_clss @ classrel_cls @ arity_cls);
+ writeln_strs out (List.concat (map ResClause.tptp_clause axclauses));
+ writeln_strs out (tfree_clss @ tptp_clss @ classrel_cls @ arity_cls);
TextIO.closeOut out
end;
@@ -74,7 +76,7 @@
axclauses [] [] []
val out = TextIO.openOut(pf n)
in
- ResLib.writeln_strs out [probN]; TextIO.closeOut out
+ writeln_strs out [probN]; TextIO.closeOut out
end;
@@ -82,19 +84,20 @@
(* call prover with settings and problem file for the current subgoal *)
(*********************************************************************)
(* now passing in list of skolemized thms and list of sgterms to go with them *)
-fun watcher_call_provers sign sg_terms (childin, childout,pid) =
+fun watcher_call_provers sign sg_terms (childin, childout, pid) =
let
fun make_atp_list [] n = []
| make_atp_list (sg_term::xs) n =
let
val goalstring = Sign.string_of_term sign sg_term
- val _ = debug ("goalstring in make_atp_lists is " ^ goalstring)
val probfile = prob_pathname n
val time = Int.toString (!time_limit)
- val _ = debug ("problem file in watcher_call_provers is " ^ probfile)
in
+ debug ("goalstring in make_atp_lists is\n" ^ goalstring);
+ debug ("problem file in watcher_call_provers is " ^ probfile);
(*Avoid command arguments containing spaces: Poly/ML and SML/NJ
versions of Unix.execute treat them differently!*)
+ (*options are separated by Watcher.setting_sep, currently #"%"*)
if !prover = "spass"
then
let val optionline =
@@ -165,7 +168,8 @@
())
in writenext (length prems); clause_arr end;
-val last_watcher_pid = ref (NONE : Posix.Process.pid option);
+val last_watcher_pid =
+ ref (NONE : (TextIO.instream * TextIO.outstream * Posix.Process.pid) option);
(*writes out the current clasimpset to a tptp file;
@@ -175,8 +179,13 @@
if Thm.no_prems th then ()
else
let
+ val _ = (*Set up signal handler to tidy away dead processes*)
+ IsaSignal.signal (IsaSignal.chld,
+ IsaSignal.SIG_HANDLE (fn _ =>
+ (Posix.Process.waitpid_nh(Posix.Process.W_ANY_CHILD, []);
+ debug "Child signal received\n")));
val _ = (case !last_watcher_pid of NONE => ()
- | SOME pid => (*FIXME: should kill ATP processes too; at least they time out*)
+ | SOME (_, childout, pid) =>
(debug ("Killing old watcher, pid = " ^
Int.toString (ResLib.intOfPid pid));
Watcher.killWatcher pid))
@@ -184,7 +193,7 @@
val clause_arr = write_problem_files prob_pathname (ctxt,th)
val (childin, childout, pid) = Watcher.createWatcher (th, clause_arr)
in
- last_watcher_pid := SOME pid;
+ last_watcher_pid := SOME (childin, childout, pid);
debug ("proof state: " ^ string_of_thm th);
debug ("pid: " ^ Int.toString (ResLib.intOfPid pid));
watcher_call_provers (sign_of_thm th) (Thm.prems_of th) (childin, childout, pid)
@@ -208,9 +217,9 @@
handle Proof.STATE _ => error "No goal present";
val thy = ProofContext.theory_of ctxt;
in
- debug ("initial thm in isar_atp: " ^
+ debug ("initial thm in isar_atp:\n" ^
Pretty.string_of (ProofContext.pretty_thm ctxt goal));
- debug ("subgoals in isar_atp: " ^
+ debug ("subgoals in isar_atp:\n" ^
Pretty.string_of (ProofContext.pretty_term ctxt
(Logic.mk_conjunction_list (Thm.prems_of goal))));
debug ("number of subgoals in isar_atp: " ^ Int.toString (Thm.nprems_of goal));