void remove_acceptance_pair(int pair_num);
void purge_visited_pairs();
void backtrack();
- std::shared_ptr<Pair> create_pair(Pair* pair, xbt_automaton_state_t state,
+ std::shared_ptr<Pair> create_pair(const Pair* pair, xbt_automaton_state_t state,
std::shared_ptr<const std::vector<int>> propositions);
// A stack of (application_state, automaton_state) pairs for DFS exploration: