Integrating Maude into Hets

Abstract. Maude modules can be understood as models that can be formally analyzed and verified with respect to different properties ex-pressing various formal requirements. However, Maude lacks the formal tools to perform some of these analyses and thus they can only be done by hand. The Heterogeneous Tool Set Hets is an institution-based com-bination of different logics and corresponding rewriting, model checking and proof tools. We present in this paper an integration of Maude into Hets that allows to use the logics and tools already integrated in Hets with Maude specifications. To achieve such integration we have defined an institution for Maude based on preordered algebras and a comorphism between Maude and Casl, the central logic in Hets