Fixed assert in BFSSearcher that does not hold as part of interleaved searcher

1 files changed, 49 insertions, 0 deletions

diff --git a/test/Feature/BFSSearcherAndDFSSearcherInterleaved.c b/test/Feature/BFSSearcherAndDFSSearcherInterleaved.c
new file mode 100644
index 00000000..9cc11b70
--- /dev/null
+++ b/test/Feature/BFSSearcherAndDFSSearcherInterleaved.c
@@ -0,0 +1,49 @@
+// RUN: %llvmgcc %s -emit-llvm -g -c -o %t.bc
+// RUN: rm -rf %t-bfs.klee-out
+// RUN: rm -rf %t-dfs.klee-out
+// RUN: rm -rf %t-bfs-dfs.klee-out
+// RUN: rm -rf %t-dfs-bfs.klee-out
+// RUN: %klee -output-dir=%t-bfs.klee-out -search=bfs %t.bc >%t-bfs.out
+// RUN: %klee -output-dir=%t-dfs.klee-out -search=dfs %t.bc >%t-dfs.out
+// RUN: %klee -output-dir=%t-bfs-dfs.klee-out -search=bfs -search=dfs %t.bc >%t-bfs-dfs.out
+// RUN: %klee -output-dir=%t-dfs-bfs.klee-out -search=dfs -search=bfs %t.bc >%t-dfs-bfs.out
+// RUN: FileCheck -input-file=%t-bfs.out %s
+// RUN: FileCheck -input-file=%t-dfs.out %s
+// RUN: FileCheck -input-file=%t-bfs-dfs.out %s
+// RUN: FileCheck -input-file=%t-dfs-bfs.out %s
+
+#include "klee/klee.h"
+
+int main() {
+  int x, y, z;
+  klee_make_symbolic(&x, sizeof(x), "x");
+  klee_make_symbolic(&y, sizeof(y), "y");
+  klee_make_symbolic(&z, sizeof(z), "z");
+
+  if (x == 1) {
+    if (y == 1) {
+      if (z == 1) {
+        printf("A");
+      } else {
+        printf("B");
+      }
+    }
+  } else {
+    if (y == 1) {
+      if (z == 1) {
+        printf("C");
+      } else {
+        printf("D");
+      }
+    }
+  }
+
+  // exactly 4 characters
+  // CHECK: {{^[A-D]{4}$}}
+
+  // for each of A, B, C and D: occurs exactly once
+  // CHECK-SAME: {{^[B-D]*A[B-D]*$}}
+  // CHECK-SAME: {{^[A,C-D]*B[A,C-D]*$}}
+  // CHECK-SAME: {{^[A-B,D]*C[A-B,D]*$}}
+  // CHECK-SAME: {{^[A-C]*D[A-C]*$}}
+}