1 files changed, 18 insertions, 0 deletions
diff --git a/Test/civl/one.bpl b/Test/civl/one.bpl
new file mode 100644
index 00000000..3b370fa7
--- /dev/null
+++ b/Test/civl/one.bpl
@@ -0,0 +1,18 @@
+// RUN: %boogie -noinfer "%s" > "%t"
+// RUN: %diff "%s.expect" "%t"
+var {:layer 0,1} x:int;
+
+procedure {:yields} {:layer 0,1} Set(v: int);
+ensures {:atomic}
+|{A:
+  x := v; return true;
+}|;
+
+procedure {:yields} {:layer 1} B()
+{
+  yield;
+  call Set(5);
+  yield;
+  assert {:layer 1} x == 5;
+}
+