Alternating Simulation and IOCO

We propose a symbolic framework called guarded labeled assignment systems or GLASs and show how GLASs can be used as a foundation for symbolic analysis of various aspects of formal specification languages. We define a notion of i/orefinement over GLASs as an alternating simulation relation and provide formal proofs that relate i/o-refinement to ioco. We show that non-i/o-refinement reduces to a reachability problem and provide a translation from bounded non-i/orefinement or bounded non-ioco to checking first-order assertions.

• Type: Journal
• Year: 2010
• Where: PTS
• Authors: Margus Veanes, Nikolaj Bjørner
• Keywords: Formal Specification Languages, GLASs, Hardware, PTS 2010, Symbolic Framework