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Automated Technology for Verification and Analysis - 8th International Symposium, ATVA 2010, Singapore, September 21-24, 2010. Proceedings, Singapore : Singapore (2010)
Efficient On-The-Fly Emptiness Check for Timed Büchi Automata
Frédéric Herbreteau 1, B. Srivathsan 1
(2010)

The Büchi non-emptiness problem for timed automata concerns deciding if a given automaton has an infinite non-Zeno run satisfying the Büchi accepting condition. The solution to this problem amounts to searching for a cycle in the so-called zone graph of the automaton. Since non-Zenoness cannot be verified directly from the zone graph, additional constructions are required. In this paper, it is shown that in many cases, non-Zenoness can be ascertained without extra constructions. An on-the-fly algorithm for the non-emptiness problem, using an efficient non-Zenoness construction only when required, is proposed. Experiments carried out with a prototype implementation of the algorithm are reported and the results are seen to be promising.
1:  Laboratoire Bordelais de Recherche en Informatique (LaBRI)
CNRS : UMR5800 – Université Sciences et Technologies - Bordeaux I – École Nationale Supérieure d'Électronique, Informatique et Radiocommunications de Bordeaux (ENSEIRB) – Université Victor Segalen - Bordeaux II
Computer Science/Logic in Computer Science
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