文章基本信息

标题：Shrinking Timed Automata
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作者：Ocan Sankur ; Patricia Bouyer ; Nicolas Markey 等
期刊名称：LIPIcs : Leibniz International Proceedings in Informatics
电子版ISSN：1868-8969
出版年度：2011
卷号：13
页码：90-102
DOI：10.4230/LIPIcs.FSTTCS.2011.90
出版社：Schloss Dagstuhl -- Leibniz-Zentrum fuer Informatik
摘要：We define and study a new approach to the implementability of timed automata, where the semantics is perturbed by imprecisions and finite frequency of the hardware. In order to circumvent these effects, we introduce parametric shrinking of clock constraints, which corresponds to tightening these. We propose symbolic procedures to decide the existence of (and then compute) parameters under which the shrunk version of a given timed automaton is non-blocking and can time-abstract simulate the exact semantics. We then define an implementation semantics for timed automata with a digital clock and positive reaction times, and show that for shrinkable timed automata, non-blockingness and time-abstract simulation are preserved in implementation.
关键词：Timed automata; implementability; robustness