{"date_published":"2022-09-06T00:00:00Z","publication_status":"published","department":[{"_id":"ToHe"}],"abstract":[{"text":"We explore the notion of history-determinism in the context of timed automata (TA). History-deterministic automata are those in which nondeterminism can be resolved on the fly, based on the run constructed thus far. History-determinism is a robust property that admits different game-based characterisations, and history-deterministic specifications allow for game-based verification without an expensive determinization step.\r\nWe show yet another characterisation of history-determinism in terms of fair simulation, at the general level of labelled transition systems: a system is history-deterministic precisely if and only if it fairly simulates all language smaller systems.\r\nFor timed automata over infinite timed words it is known that universality is undecidable for Büchi TA. We show that for history-deterministic TA with arbitrary parity acceptance, timed universality, inclusion, and synthesis all remain decidable and are ExpTime-complete.\r\nFor the subclass of TA with safety or reachability acceptance, we show that checking whether such an automaton is history-deterministic is decidable (in ExpTime), and history-deterministic TA with safety acceptance are effectively determinizable without introducing new automata states.","lang":"eng"}],"type":"conference","file":[{"content_type":"application/pdf","file_name":"2022_LIPICs_Henzinger2.pdf","access_level":"open_access","creator":"dernst","relation":"main_file","checksum":"9e97e15628f66b2ad77f535bb0327dee","file_id":"12520","success":1,"date_created":"2023-02-06T09:21:09Z","file_size":717940,"date_updated":"2023-02-06T09:21:09Z"}],"day":"06","month":"09","article_processing_charge":"No","date_updated":"2023-02-06T09:23:31Z","tmp":{"image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"quality_controlled":"1","title":"History-deterministic timed automata","status":"public","alternative_title":["LIPIcs"],"oa_version":"Published Version","oa":1,"date_created":"2023-02-05T17:24:23Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publisher":"Schloss Dagstuhl - Leibniz-Zentrum für Informatik","scopus_import":"1","citation":{"mla":"Henzinger, Thomas A., et al. “History-Deterministic Timed Automata.” <i>33rd International Conference on Concurrency Theory</i>, vol. 243, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2022, p. 14:1-14:21, doi:<a href=\"https://doi.org/10.4230/LIPIcs.CONCUR.2022.14\">10.4230/LIPIcs.CONCUR.2022.14</a>.","ieee":"T. A. Henzinger, K. Lehtinen, and P. Totzke, “History-deterministic timed automata,” in <i>33rd International Conference on Concurrency Theory</i>, Warsaw, Poland, 2022, vol. 243, p. 14:1-14:21.","ama":"Henzinger TA, Lehtinen K, Totzke P. History-deterministic timed automata. In: <i>33rd International Conference on Concurrency Theory</i>. Vol 243. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2022:14:1-14:21. doi:<a href=\"https://doi.org/10.4230/LIPIcs.CONCUR.2022.14\">10.4230/LIPIcs.CONCUR.2022.14</a>","ista":"Henzinger TA, Lehtinen K, Totzke P. 2022. History-deterministic timed automata. 33rd International Conference on Concurrency Theory. CONCUR: Conference on Concurrency Theory, LIPIcs, vol. 243, 14:1-14:21.","chicago":"Henzinger, Thomas A, Karoliina Lehtinen, and Patrick Totzke. “History-Deterministic Timed Automata.” In <i>33rd International Conference on Concurrency Theory</i>, 243:14:1-14:21. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2022. <a href=\"https://doi.org/10.4230/LIPIcs.CONCUR.2022.14\">https://doi.org/10.4230/LIPIcs.CONCUR.2022.14</a>.","apa":"Henzinger, T. A., Lehtinen, K., &#38; Totzke, P. (2022). History-deterministic timed automata. In <i>33rd International Conference on Concurrency Theory</i> (Vol. 243, p. 14:1-14:21). Warsaw, Poland: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. <a href=\"https://doi.org/10.4230/LIPIcs.CONCUR.2022.14\">https://doi.org/10.4230/LIPIcs.CONCUR.2022.14</a>","short":"T.A. Henzinger, K. Lehtinen, P. Totzke, in:, 33rd International Conference on Concurrency Theory, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2022, p. 14:1-14:21."},"conference":{"start_date":"2022-09-13","name":"CONCUR: Conference on Concurrency Theory","end_date":"2022-09-16","location":"Warsaw, Poland"},"ec_funded":1,"_id":"12508","language":[{"iso":"eng"}],"publication":"33rd International Conference on Concurrency Theory","author":[{"orcid":"0000-0002-2985-7724","full_name":"Henzinger, Thomas A","id":"40876CD8-F248-11E8-B48F-1D18A9856A87","last_name":"Henzinger","first_name":"Thomas A"},{"full_name":"Lehtinen, Karoliina","first_name":"Karoliina","last_name":"Lehtinen"},{"first_name":"Patrick","last_name":"Totzke","full_name":"Totzke, Patrick"}],"has_accepted_license":"1","doi":"10.4230/LIPIcs.CONCUR.2022.14","page":"14:1-14:21","publication_identifier":{"isbn":["9783959772464"],"issn":["1868-8969"]},"file_date_updated":"2023-02-06T09:21:09Z","acknowledgement":"Thomas A. Henzinger: This work was supported in part by the ERC-2020-AdG 101020093.\r\nPatrick Totzke: acknowledges support from the EPSRC, project no. EP/V025848/1.\r\n","project":[{"_id":"62781420-2b32-11ec-9570-8d9b63373d4d","name":"Vigilant Algorithmic Monitoring of Software","grant_number":"101020093","call_identifier":"H2020"}],"ddc":["000"],"intvolume":"       243","volume":243,"year":"2022"}