1 files changed, 20 insertions, 0 deletions
diff --git a/Test/test21/Orderings.bpl b/Test/test21/Orderings.bpl
new file mode 100644
index 00000000..78439bc1
--- /dev/null
+++ b/Test/test21/Orderings.bpl
@@ -0,0 +1,20 @@
+
+
+const a, b:int;
+const c:int extends a, b;
+
+procedure P() returns () {
+  var x:int;
+
+  assert c <: a;
+
+  assume c <: x && x <: a;
+  assert x == c || a == x;
+
+  assert x == b;             // should not be provable
+}
+
+procedure Q() returns () {
+  assume b <: a;
+  assert b == a;
+}
+\ No newline at end of file