void check_recency(ModelAction *curr, const ModelAction *rf);
ModelAction * get_last_conflict(ModelAction *act);
void set_backtracking(ModelAction *act);
Thread * get_next_thread(ModelAction *curr);
void check_recency(ModelAction *curr, const ModelAction *rf);
ModelAction * get_last_conflict(ModelAction *act);
void set_backtracking(ModelAction *act);
Thread * get_next_thread(ModelAction *curr);