By using PAT model checker, we can create a mAskodel and simulate it, so for verifying a CTL specification for model, we should translate this model to SMV code that verify it in NuSMV model checker.
I'd say that it is perhaps beter to wrap nusmv as an extension to PAT; afterall PAT is built to be extensible. Do you really need CTL? Or can you do it with LTL, which is supported by PAT?