1 files changed, 11 insertions, 0 deletions
diff --git a/Test/test21/Orderings4.bpl b/Test/test21/Orderings4.bpl
new file mode 100644
index 00000000..3058287f
--- /dev/null
+++ b/Test/test21/Orderings4.bpl
@@ -0,0 +1,11 @@
+
+
+type Wicket;
+
+const unique r: Wicket;
+const unique s, t: Wicket extends unique r;
+
+procedure P() returns () {
+  assert (forall x:Wicket, y:Wicket :: x <: s && y <: t ==> x != y);
+  assert false;          // unprovable
+}
+\ No newline at end of file