PELÁNEK, Radek, Kim G. LARSEN, Gerd BEHRMANN a Patricia BOUYER. Lower and Upper Bounds in Zone-Based Abstractions of Timed Automata. International Journal on Software Tools for Technology Transfer (STTT). Springer-Verlag GmbH, 2006, roč. 8, č. 3, s. 204-215. ISSN 1433-2779. |
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@article{585922, author = {Pelánek, Radek and Larsen, Kim G. and Behrmann, Gerd and Bouyer, Patricia}, article_number = {3}, keywords = {model checking; timed automata; verification; abstraction; extrapolation}, language = {eng}, issn = {1433-2779}, journal = {International Journal on Software Tools for Technology Transfer (STTT)}, title = {Lower and Upper Bounds in Zone-Based Abstractions of Timed Automata}, volume = {8}, year = {2006} }
TY - JOUR ID - 585922 AU - Pelánek, Radek - Larsen, Kim G. - Behrmann, Gerd - Bouyer, Patricia PY - 2006 TI - Lower and Upper Bounds in Zone-Based Abstractions of Timed Automata JF - International Journal on Software Tools for Technology Transfer (STTT) VL - 8 IS - 3 SP - 204-215 EP - 204-215 PB - Springer-Verlag GmbH SN - 14332779 KW - model checking KW - timed automata KW - verification KW - abstraction KW - extrapolation N2 - 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. ER -
PELÁNEK, Radek, Kim G. LARSEN, Gerd BEHRMANN a Patricia BOUYER. Lower and Upper Bounds in Zone-Based Abstractions of Timed Automata. \textit{International Journal on Software Tools for Technology Transfer (STTT)}. Springer-Verlag GmbH, 2006, roč.~8, č.~3, s.~204-215. ISSN~1433-2779.
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