Stop once --unwinding-assertions confirms success

Also make Termination exit with UNKNOWN(42).

Author: tautschnig

cbmc.inc

@@ -9,6 +9,7 @@ run()
 {
   if [ "$PROP" = "termination" ] ; then
     EC=42
+    echo "EC=$EC" >> $LOG.ok
     return
   fi
 
@@ -31,7 +32,7 @@ if ! tail -n 10 $LOG.latest | grep -q "^VERIFICATION FAILED$" ; then ec=1 ; fi ;
 fi ; \
 \
 case $ec in \
-0) EC=0 ; mv $LOG.latest $LOG.ok ; echo "EC=$EC" >> $LOG.ok ;; \
+0) EC=0 ; mv $LOG.latest $LOG.ok ; echo "EC=$EC" >> $LOG.ok ; break ;; \
 10) EC=10 ; mv $LOG.latest $LOG.ok ; echo "EC=$EC" >> $LOG.ok ; break ;; \
 42) EC=42 ; mv $LOG.latest $LOG.ok ; echo "EC=$EC" >> $LOG.ok ;; \
 *) if [ $EC -ne 0 ] ; then EC=$ec ; mv $LOG.latest $LOG.ok ; fi ; echo "EC=$EC" >> $LOG.ok ; break ;; \