About: Lower and Upper Bounds in Zone-Based Abstractions of Timed Automata     Goto   Sponge   NotDistinct   Permalink

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  • Timed automata have an infinite semantics. For verification purposes, one usually uses zone based abstractions w.r.t. the maximal constants to which clocks of the timed automaton are compared. We show that by distinguishing maximal lower and upper bounds, significantly coarser abstractions can be obtained. We show soundness and completeness of the new abstractions w.r.t. reachability. We demonstrate how information about lower and upper bounds can be used to optimise the algorithm for bringing a difference bound matrix into normal form. Finally, we experimentally demonstrate that the new techniques dramatically increases the scalability of the real-time model checker Uppaal.
  • Timed automata have an infinite semantics. For verification purposes, one usually uses zone based abstractions w.r.t. the maximal constants to which clocks of the timed automaton are compared. We show that by distinguishing maximal lower and upper bounds, significantly coarser abstractions can be obtained. We show soundness and completeness of the new abstractions w.r.t. reachability. We demonstrate how information about lower and upper bounds can be used to optimise the algorithm for bringing a difference bound matrix into normal form. Finally, we experimentally demonstrate that the new techniques dramatically increases the scalability of the real-time model checker Uppaal. (en)
Title
  • Lower and Upper Bounds in Zone-Based Abstractions of Timed Automata
  • Lower and Upper Bounds in Zone-Based Abstractions of Timed Automata (en)
skos:prefLabel
  • Lower and Upper Bounds in Zone-Based Abstractions of Timed Automata
  • Lower and Upper Bounds in Zone-Based Abstractions of Timed Automata (en)
skos:notation
  • RIV/00216224:14330/06:00015564!RIV10-GA0-14330___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(1M0545), P(GA201/03/0509), Z(MSM0021622419)
http://linked.open...iv/cisloPeriodika
  • 3
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  • 483684
http://linked.open...ai/riv/idVysledku
  • RIV/00216224:14330/06:00015564
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • model checking; timed automata; verification; abstraction; extrapolation (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • DE - Spolková republika Německo
http://linked.open...ontrolniKodProRIV
  • [31F6D699F06D]
http://linked.open...i/riv/nazevZdroje
  • International Journal on Software Tools for Technology Transfer (STTT)
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http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 8
http://linked.open...iv/tvurceVysledku
  • Pelánek, Radek
  • Larsen, Kim G.
  • Bouyer, Patricia
  • Behrmann, Gerd
http://linked.open...n/vavai/riv/zamer
issn
  • 1433-2779
number of pages
http://localhost/t...ganizacniJednotka
  • 14330
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