remove division_by_zero requirement from termdiffs lemmas; cleaned up some proofs
(* ID: $Id$
Author: Jia Meng, NICTA
Functions used for ATP Oracle.
*)
structure ResAtpProvers =
struct
fun seek_line s instr =
let val thisLine = TextIO.inputLine instr
in thisLine <> "" andalso
(thisLine = s orelse seek_line s instr)
end;
fun location s = warning ("ATP input at: " ^ s);
fun call_vampire (file:string, time: int) =
let val _ = location file
val runtime = "-t " ^ (string_of_int time)
val vampire = ResAtp.helper_path "VAMPIRE_HOME" "vampire"
val (instr,outstr) = Unix.streamsOf (Unix.execute(vampire, [runtime,"--mode casc",file]))
in seek_line "--------------------- PROVED ----------------------\n" instr
end;
fun call_eprover (file:string, time:int) =
let val _ = location file
val eprover = ResAtp.helper_path "E_HOME" "eprover"
val runtime = "--cpu-limit=" ^ (string_of_int time)
val (instr,outstr) = Unix.streamsOf (Unix.execute(eprover,
[runtime,"--tstp-in","-tAutoDev","-xAutoDev",file]))
in seek_line "# Proof found!\n" instr
end;
fun call_spass (file:string, time:int) =
let val _ = location file
val runtime = "-TimeLimit=" ^ (string_of_int time)
val spass = ResAtp.helper_path "SPASS_HOME" "SPASS"
val (instr,outstr) = Unix.streamsOf (Unix.execute(spass,
[runtime,"-Splits=0", "-FullRed=0", "-SOS=1",file]))
in seek_line "SPASS beiseite: Proof found.\n" instr
end;
fun vampire_o _ (file,time) =
if call_vampire (file,time)
then (warning file; ResAtp.cond_rm_tmp file; HOLogic.mk_Trueprop HOLogic.false_const)
else (ResAtp.cond_rm_tmp file; raise Fail ("vampire oracle failed"));
fun eprover_o _ (file,time) =
if call_eprover (file,time)
then (warning file; ResAtp.cond_rm_tmp file; HOLogic.mk_Trueprop HOLogic.false_const)
else (ResAtp.cond_rm_tmp file; raise Fail ("eprover oracle failed"));
fun spass_o _ (file,time) =
if call_spass (file,time)
then (warning file; ResAtp.cond_rm_tmp file; HOLogic.mk_Trueprop HOLogic.false_const)
else (ResAtp.cond_rm_tmp file; raise Fail ("SPASS oracle failed"));
end;