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-rw-r--r--Source/Provers/Z3/TypeDeclCollector.ssc2
1 files changed, 1 insertions, 1 deletions
diff --git a/Source/Provers/Z3/TypeDeclCollector.ssc b/Source/Provers/Z3/TypeDeclCollector.ssc
index 86307b45..8173f7f3 100644
--- a/Source/Provers/Z3/TypeDeclCollector.ssc
+++ b/Source/Provers/Z3/TypeDeclCollector.ssc
@@ -117,7 +117,7 @@ namespace Microsoft.Boogie.Z3
// there are a couple of cases where operators have to be
// registered by generating appropriate Z3 statements
- if (node.Op.Equals(VCExpressionGenerator.BvConcatOp)) {
+ if (node.Op is VCExprBvConcatOp) {
//
if (NativeBv) {
RegisterType(node[0].Type);