Automated Technology for Verification and Analysis - 21st International Symposium, ATVA 2023, Singapore, October 24-27, 2023, Proceedings, Part I
Automated Technology for Verification and Analysis - 21st International Symposium, ATVA 2023, Singapore, October 24-27, 2023, Proceedings, Part I
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验证和分析自动化技术 - 第 21 届国际研讨会,ATVA 2023,新加坡,2023 年 10 月 24-27 日,会议记录,第一部分
DOI:
10.1007/978-3-031-45329-8_3
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Li Y
中科院分区:
文献类型:
--
作者:
Li Y
Families of DFAs (FDFAs) have recently been introduced as a new representation of-regular languages. They target ultimately periodic words, with acceptors revolving around accepting some representation. Three canonical FDFAs have been suggested, calledperiodic,syntactic, andrecurrent. We propose a fourth one,limit FDFAs, which can be exponentially coarser than periodic FDFAs and are more succinct than syntactic FDFAs, while they are incomparable (and dual to) recurrent FDFAs. We show that limit FDFAs can be easily used to check not only whether-languages are regular, but also whether they are accepted by deterministic Büchi automata. We also show that canonical forms can be left behind in applications: the limit and recurrent FDFAs can complement each other nicely, and it may be a good way forward to use a combination of both. Using this observation as a starting point, we explore making more efficient use of Myhill-Nerode’s right congruences in aggressively increasing the number of don’t-care cases in order to obtain smaller progress automata. In pursuit of this goal, we gain succinctness, but pay a high price by losing constructiveness.