Concretize arguments to external function calls using seeds, if available. Added a test case.

1 files changed, 25 insertions, 0 deletions

diff --git a/test/Feature/SeedConcretizeExternalCall.c b/test/Feature/SeedConcretizeExternalCall.c
new file mode 100644
index 00000000..7eb69698
--- /dev/null
+++ b/test/Feature/SeedConcretizeExternalCall.c
@@ -0,0 +1,25 @@
+// RUN: %clang -emit-llvm -c -g %s -o %t.bc
+// RUN: rm -rf %t.klee-out
+// RUN: %klee --output-dir=%t.klee-out --entry-point=TestGen %t.bc
+// RUN: test -f %t.klee-out/test000001.ktest
+// RUN: not test -f %t.klee-out/test000002.ktest
+
+// RUN: rm -rf %t.klee-out-2
+// RUN: %klee --external-calls=all --exit-on-error --output-dir=%t.klee-out-2 --seed-file %t.klee-out/test000001.ktest %t.bc
+
+#include "klee/klee.h"
+
+#include <assert.h>
+#include <stdlib.h>
+
+void TestGen() {
+  int x;
+  klee_make_symbolic(&x, sizeof(x), "x");
+  klee_assume(x == 12345678);
+}
+
+int main() {
+  int x;
+  klee_make_symbolic(&x, sizeof(x), "x");
+  assert(abs(x) == 12345678);
+}