int num = 0; // unique id of that state in the storage of all stored IDs
int original_num = 0; // num field of the VisitedState to which I was declared equal to (used for dot_output)
int num = 0; // unique id of that state in the storage of all stored IDs
int original_num = 0; // num field of the VisitedState to which I was declared equal to (used for dot_output)