sci Why is a software verification platform. It contains a general-purpose verification condition generator (VCG) which is used as a back-end by other verification tools but it can also be used directly to verify programs. It also provides Krakatoa, a tool or the verification of Java programs and Caduceus, a tool for the verification of C programs. Use sci-mathematics/apron library for abstract interpretation Add sci-mathematics/coq support Add sci-mathematics/flocq support Add sci-mathematics/gappalib-coq support Add sci-mathematics/frama-c support Add sci-mathematics/pff support Add sci-mathematics/why3 support