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-rw-r--r--Source/Dafny/Printer.cs5
1 files changed, 4 insertions, 1 deletions
diff --git a/Source/Dafny/Printer.cs b/Source/Dafny/Printer.cs
index e58a39de..fb46ba4b 100644
--- a/Source/Dafny/Printer.cs
+++ b/Source/Dafny/Printer.cs
@@ -661,7 +661,10 @@ namespace Microsoft.Dafny {
} else if (s is AssignSuchThatStmt) {
var update = (AssignSuchThatStmt)s;
wr.Write(" :| ");
- PrintExpression(update.Assume.Expr);
+ if (update.AssumeToken != null) {
+ wr.Write("assume ");
+ }
+ PrintExpression(update.Expr);
} else {
Contract.Assert(s == null); // otherwise, unknown type
}