ModelAction * get_last_conflict(ModelAction *act) const;
void set_backtracking(ModelAction *act);
Thread * get_next_thread(ModelAction *curr);
bool set_latest_backtrack(ModelAction *act);
ModelAction * get_next_backtrack();
void reset_to_initial_state();
ModelAction * get_last_conflict(ModelAction *act) const;
void set_backtracking(ModelAction *act);
Thread * get_next_thread(ModelAction *curr);
bool set_latest_backtrack(ModelAction *act);
ModelAction * get_next_backtrack();
void reset_to_initial_state();