Add crashing example tests

examples/CMakeLists.txt

@@ -13,6 +13,9 @@
 # limitations under the License.
 
 
+add_executable(Crash Crash.cpp)
+target_link_libraries(Crash deepstate)
+
 add_executable(OneOf OneOf.cpp)
 target_link_libraries(OneOf deepstate)
 

examples/Crash.cpp

@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2018 Trail of Bits, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#include <deepstate/DeepState.hpp>
+
+using namespace deepstate;
+
+DEEPSTATE_NOINLINE static unsigned segfault(unsigned x) {
+  if (x == 0x1234) {  // Magic number for engine to discover
+    unsigned *p = NULL;
+    *p = 0xdeadbeef;  // Trigger segfault here
+  }
+
+  return x;
+}
+
+TEST(Crash, SegFault) {
+  symbolic_unsigned x;
+
+  segfault(x);
+
+  ASSERT_EQ(x, x);
+}
+
+int main(int argc, char *argv[]) {
+  DeepState_InitOptions(argc, argv);
+  return DeepState_Run();
+}