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Cooperation between Automatic and Interactive Software VerifiersCooperation Agreement • August 8th, 2022
Abstract. The verification community develops two kinds of verification tools: automatic verifiers and interactive verifiers. There are many such verifiers available, and there is steady progress in research. However, cooperation between the two kinds of verifiers was not yet addressed in a modular way. Yet, it is imperative for the community to leverage all possibilities, because our society heavily depends on software systems that work correctly. This paper contributes tools and a modular design to address the open problem of insufficient support for cooperation between verification tools. We identify invariants as information that needs to be exchanged in cooperation, and we support translation between two ‘containers’ for invariants: program annotations and correctness witnesses. Using our new building blocks, invariants computed by automatic veri- fiers can be given to interactive verifiers as annotations in the program, and annotations from the user or interactive verifier can be
