Abstract
Model checking is one of the most effective tech-niques in automated system verification. Although this technique can handle complex verifications,model checking tools usually do not give any sug-gestions on how to repair inconsistent system mod-els. In this paper, we show that approaches devel-oped to update models of Computation Tree Logic (CTL) cannot deal with all kinds of changes. We introduce the concept of CTL model revision: an approach based on belief revision to handle system inconsistency in a static context.