1 files changed, 22 insertions, 0 deletions
diff --git a/test/Feature/DanglingConcreteReadExpr.c b/test/Feature/DanglingConcreteReadExpr.c
new file mode 100644
index 00000000..1bf44c3f
--- /dev/null
+++ b/test/Feature/DanglingConcreteReadExpr.c
@@ -0,0 +1,22 @@
+// RUN: %llvmgcc %s -emit-llvm -O0 -c -o %t1.bc
+// RUN: %klee %t1.bc
+// RUN: grep "total queries = 2" klee-last/info
+
+#include <assert.h>
+
+int main() {
+  unsigned char x, y;
+
+  klee_make_symbolic(&x, sizeof x);
+  
+  y = x;
+
+  // should be exactly two queries (prove x is/is not 10)
+  // eventually should be 0 when we have fast solver
+  if (x==10) {
+    assert(y==10);
+  }
+
+  klee_silent_exit(0);
+  return 0;
+}