1 files changed, 38 insertions, 0 deletions
diff --git a/Test/houdini/test2.bpl b/Test/houdini/test2.bpl
new file mode 100644
index 00000000..febb28e6
--- /dev/null
+++ b/Test/houdini/test2.bpl
@@ -0,0 +1,38 @@
+var g: int;
+var h: int;
+
+procedure foo() 
+modifies g, h;
+ensures b0 ==> old(g) == g;
+{
+  call AcquireLock();
+  call ReleaseLock();
+}
+
+procedure AcquireLock()
+modifies g, h;
+ensures b1 ==> old(g) == g;
+{
+  h := g;
+  g := 1;
+}
+
+procedure ReleaseLock()
+modifies g, h;
+ensures b2 ==> old(g) == g;
+{
+  g := h;
+}
+
+procedure main()
+modifies g, h;
+{
+  g := 0;
+  call foo();
+  assert g == 0;
+}
+
+const {:existential true} b0: bool;
+const {:existential true} b1: bool;
+const {:existential true } b2: bool;
+