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-rw-r--r--Source/VCGeneration/StratifiedVC.cs2
1 files changed, 1 insertions, 1 deletions
diff --git a/Source/VCGeneration/StratifiedVC.cs b/Source/VCGeneration/StratifiedVC.cs
index e6e6eb39..df46ad50 100644
--- a/Source/VCGeneration/StratifiedVC.cs
+++ b/Source/VCGeneration/StratifiedVC.cs
@@ -2483,7 +2483,7 @@ namespace VC
calls.setCurrProc(procName);
expansion = calls.Mutate(expansion, true);
if (useSummary) calls.matchSummaries();
- vState.coverageManager.addRecentEdges(id);
+ if(vState.coverageManager != null) vState.coverageManager.addRecentEdges(id);
//expansion = checker.VCExprGen.Eq(calls.id2ControlVar[id], expansion);
expansion = checker.VCExprGen.Implies(calls.id2ControlVar[id], expansion);