I will look at exactly what happens in this condition a little later. For now: no, there is nothing you can do with settings to make this go away. Roughly speaking, it means 4 billion unifications were attempted since ACE was started. This is a fairy rare condition. From memory, I think ACE has a way to handle the overflow and move on with life, but it looks like at a minimum there is a formatting issue that is confusing ART.
In the meantime: if this is single sentence being parsed, might there be a grammar problem causing infinite loops? 4 billion unifications for a single sentence seems like a lot — although maybe possible for a long sentence in a grammar with a lot of rules if quick check is not configured properly. If not, is it part of an extremely long test suite that you could break up?