Qualitative verification of finite and real-time DEVS networks

This paper introduces a qualitative verification methodology for a subclass of RTDEVS(Real-Time Discrete Event System Specification) [4], called Finite RTDEVS(FRTDEVS). Sub-classing FRTDEVS from RTDEVS aims to generate a finite structure of reachability graph for a given network of FRTDEVS. Since the reachability graph is isomorphic to a given FRTDEVS network in terms of their behaviors, it enables us to verify some qualitative properties of the target system. In order to demonstrate a practical usage of the reachability graph, we illustrate how to check safety and liveness monorail systems modeled by FRTDEVS networks.

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