+/********************************** Configuration of MC **************************************/
+extern int _sg_do_model_check;
+extern int _sg_do_model_check_record;
+extern int _sg_mc_checkpoint;
+extern int _sg_mc_sparse_checkpoint;
+extern char* _sg_mc_property_file;
+extern int _sg_mc_timeout;
+extern int _sg_mc_hash;
+extern int _sg_mc_max_depth;
+extern int _sg_mc_visited;
+extern char* _sg_mc_dot_output_file;
+extern int _sg_mc_comms_determinism;
+extern int _sg_mc_send_determinism;
+extern int _sg_mc_safety;
+extern int _sg_mc_liveness;
+extern int _sg_mc_snapshot_fds;
+extern int _sg_mc_termination;