Frama-C is an extensible C verification framework that includes support for abstract interpretation and deductive verification. We have extended it with model checking based on counterexample guided refinement. This paper discusses our tool and outlines the major challenges faced here, and likely to be faced in other similar tools.

We propose an expressive language to specify formally behavioral properties of programs involving floating-point computations. We present a deductive verification technique, which allows to prove formally that a given program meets its specifications, using either SMT-class automatic theorem provers or general interactive proof assistants. Experiments using the Frama-C platform for static analy...