"It may have the ability and motivation to gain more such knowledge, and to improve its reasoning skills."

I don't think the creature would have either of these two abilities, since its ancestors haven't been selected for their ability to acquire new information over the course of their lifespans, as I understand it the experiment. 

Plus, one trillion years sounds like too long a time for a vestigial mental trait like curiosity and learning  to survive this strong selection for a very alien mental task.

I love the experiment, though only as horror fiction.