You can't be sure of anything when it comes to consciousness. People have been trying to define it since the ancient Greeks.
Theories tend to fall into two camps: the mechanistic--which this is--and the philosophic--which tends to imply a higher order consciousness, a spirituality, if you will, that is rejected by most scientists as being too spooky and untestable.

Check out A.O. Wilson's theories. But keep in mind he studied ants. They may be total automatons but we aren't. And I just read about bees that like to play with balls. Why?