The paper presents a method of abstraction for timed systems. To extract an abstract model of a timed system we propose to use static analysis, namely a technique called path compr...
Symbolic image computation is the most fundamental computation in BDD-based sequential system optimization and formal verification. In this paper, we explore the use of over-appr...
We study three operational models of name-passing process calculi: coalgebras on (pre)sheaves, indexed labelled transition systems, and history dependent automata. The coalgebraic...
We consider the transition graphs of regular ground tree (or term) rewriting systems. The vertex set of such a graph is a (possibly infinite) set of trees. Thus, with a finite tree...
As a baseline for software development, a correct and complete requirements definition is one foundation of software quality. Previously, a novel approach to static testing of sof...