Merge branch 'upstream' into dfsg_free

1 files changed, 23 insertions, 0 deletions

diff --git a/Test/extractloops/detLoopExtractNested.bpl b/Test/extractloops/detLoopExtractNested.bpl
new file mode 100644
index 00000000..65de20c1
--- /dev/null
+++ b/Test/extractloops/detLoopExtractNested.bpl
@@ -0,0 +1,23 @@
+// RUN: %boogie  -nologo -stratifiedInline:1 -extractLoops -deterministicExtractLoops -recursionBound:100  "%s" > "%t"
+// RUN: %diff "%s.expect" "%t"
+
+//This example checks the bug fix in the loop extract for http://symdiff.codeplex.com/workitem/1
+
+var t: int;
+procedure {:entrypoint} NestedLoops()
+modifies t;
+//ensures t == 6;
+{
+   var i:int, j:int;
+   i, j, t := 0, 0, 0;
+   while(i < 2) {
+     j := 0;
+     while (j < 3) {
+       t := t + 1;
+       j := j + 1;
+     }
+     i := i + 1;
+   }
+   assume true; //would be provable (!true) wihtout the fix
+}
+