src/HOL/Modelcheck/mucke_oracle.ML
changeset 32740 9dd0a2f83429
parent 32178 0261c3eaae41
child 32960 69916a850301
--- a/src/HOL/Modelcheck/mucke_oracle.ML	Tue Sep 29 14:59:24 2009 +0200
+++ b/src/HOL/Modelcheck/mucke_oracle.ML	Tue Sep 29 16:24:36 2009 +0200
@@ -1,5 +1,5 @@
 
-val trace_mc = ref false; 
+val trace_mc = Unsynchronized.ref false; 
 
 
 (* transform_case post-processes output strings of the syntax "Mucke" *)