+int State::next_transition() const
+{
+ std::vector<ActorInformation>& actors = mc_model_checker->get_remote_process().actors();
+ XBT_DEBUG("Search for an actor to run. %zu actors to consider", actors.size());
+ for (unsigned int i = 0; i < actors.size(); i++) {
+ aid_t aid = actors[i].copy.get_buffer()->get_pid();
+ const ActorState* actor_state = &actor_states_[aid];
+
+ /* Only consider actors (1) marked as interleaving by the checker and (2) currently enabled in the application*/
+ if (not actor_state->is_todo() || not simgrid::mc::session_singleton->actor_is_enabled(aid))
+ continue;
+
+ return i;
+ }
+ return -1;
+}
+