+ void add_action_to_lists(ModelAction *act);
+ ModelAction * get_last_action(thread_id_t tid);
+ ModelAction * get_parent_action(thread_id_t tid);
+ ModelAction * get_last_seq_cst(const void *location);
+ void build_reads_from_past(ModelAction *curr);
+ void process_rmw(ModelAction * curr);
+ void r_modification_order(ModelAction * curr, const ModelAction *rf);
+ void w_modification_order(ModelAction * curr);
+