1 files changed, 5 insertions, 5 deletions

diff --git a/Source/VCExpr/Boogie2VCExpr.cs b/Source/VCExpr/Boogie2VCExpr.cs
index 49dbb7c8..8674f8c0 100644
--- a/Source/VCExpr/Boogie2VCExpr.cs
+++ b/Source/VCExpr/Boogie2VCExpr.cs
@@ -316,7 +316,7 @@ namespace Microsoft.Boogie.VCExprAST {
 

     public override Expr VisitLiteralExpr(LiteralExpr node) {

       //Contract.Requires(node != null);

-      Contract.Ensures(Contract.Result<LiteralExpr>() != null);

+      Contract.Ensures(Contract.Result<Expr>() != null);

       Push(TranslateLiteralExpr(node));

       return node;

     }

@@ -456,14 +456,14 @@ namespace Microsoft.Boogie.VCExprAST {
 

     public override Expr VisitExistsExpr(ExistsExpr node) {

       //Contract.Requires(node != null);

-      Contract.Ensures(Contract.Result<ExistsExpr>() != null);

+      Contract.Ensures(Contract.Result<Expr>() != null);

       node = (ExistsExpr)this.VisitQuantifierExpr(node);

       return node;

     }

 

     public override Expr VisitForallExpr(ForallExpr node) {

       //Contract.Requires(node != null);

-      Contract.Ensures(Contract.Result<ForallExpr>() != null);

+      Contract.Ensures(Contract.Result<Expr>() != null);

       node = (ForallExpr)this.VisitQuantifierExpr(node);

       return node;

     }

@@ -559,7 +559,7 @@ namespace Microsoft.Boogie.VCExprAST {
 

     public override Expr VisitBvExtractExpr(BvExtractExpr node) {

       //Contract.Requires(node != null);

-      Contract.Ensures(Contract.Result<BvExtractExpr>() != null);

+      Contract.Ensures(Contract.Result<Expr>() != null);

       Push(TranslateBvExtractExpr(node));

       return node;

     }

@@ -576,7 +576,7 @@ namespace Microsoft.Boogie.VCExprAST {
 

     public override Expr VisitBvConcatExpr(BvConcatExpr node) {

       //Contract.Requires(node != null);

-      Contract.Ensures(Contract.Result<BvConcatExpr>() != null);

+      Contract.Ensures(Contract.Result<Expr>() != null);

       Push(TranslateBvConcatExpr(node));

       return node;

     }