--- a/src/HOL/Tools/ATP/atp_systems.ML Mon Aug 22 15:02:45 2011 +0200
+++ b/src/HOL/Tools/ATP/atp_systems.ML Mon Aug 22 15:02:45 2011 +0200
@@ -290,6 +290,7 @@
(OutOfResources, "SPASS beiseite: Maximal number of loops exceeded"),
(MalformedInput, "Undefined symbol"),
(MalformedInput, "Free Variable"),
+ (Unprovable, "No formulae and clauses found in input file"),
(SpassTooOld, "tptp2dfg"),
(InternalError, "Please report this error")],
conj_sym_kind = Hypothesis,
--- a/src/HOL/Tools/ATP/scripts/spass Mon Aug 22 15:02:45 2011 +0200
+++ b/src/HOL/Tools/ATP/scripts/spass Mon Aug 22 15:02:45 2011 +0200
@@ -11,6 +11,7 @@
"$SPASS_HOME/tptp2dfg" $name $name.fof.dfg
"$SPASS_HOME/SPASS" -Flotter $name.fof.dfg \
| sed 's/description({$/description({*/' \
+ | sed 's/set_ClauseFormulaRelation()\.//' \
> $name.cnf.dfg
rm -f $name.fof.dfg
cat $name.cnf.dfg