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Compositional Minimization of Finite State Systems
 IN PROC. 2ND INTERNATIONAL CONFERENCE OF COMPUTERAIDED VERIFICATION
, 1991
"... In this paper we develop a compositional method for the construction of the minimal transition system that represents the semantics of a given reactive system. The point of this method is that it exploits structural properties of the reactive system in order to avoid the consideration of large inter ..."
Abstract

Cited by 36 (0 self)
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In this paper we develop a compositional method for the construction of the minimal transition system that represents the semantics of a given reactive system. The point of this method is that it exploits structural properties of the reactive system in order to avoid the consideration of large intermediate representations. Central is the use of interface specifications here, which express constraints on the components' communication behaviour, and therefore to control the state explosion caused by the interleavings of actions of communicating parallel components. The effect of the method, which is developed for bisimulation semantics here, depends on the structure of the reactive system under consideration, in particular on the accuracy of the interface specifications. However, its correctness does not: every "successful" construction is guaranteed to yield the desired minimal transition system, independently of the correctness of the interface specifications provided by the designer.
Computing Behavioural Relations, Logically
 In Proceedings of 18th International Colloquium on Automata, Languages and Programming
, 1991
"... This paper develops a modelchecking algorithm for a fragment of the modal mucalculus and shows how it may be applied to the efficient computation of behavioral relations between processes. The algorithm's complexity is proportional to the product of the size of the process and the size of the f ..."
Abstract

Cited by 28 (7 self)
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This paper develops a modelchecking algorithm for a fragment of the modal mucalculus and shows how it may be applied to the efficient computation of behavioral relations between processes. The algorithm's complexity is proportional to the product of the size of the process and the size of the formula, and thus improves on the best existing algorithm for such a fixed point logic. The method for computing preorders that the model checker induces is also more efficient than known algorithms.