Abstract
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.
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Herbreteau, F., Srivathsan, B. (2010). Efficient On-the-Fly Emptiness Check for Timed Büchi Automata. In: Bouajjani, A., Chin, WN. (eds) Automated Technology for Verification and Analysis. ATVA 2010. Lecture Notes in Computer Science, vol 6252. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-15643-4_17
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DOI: https://doi.org/10.1007/978-3-642-15643-4_17
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