PMID- 36502252 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20221216 LR - 20221221 IS - 1424-8220 (Electronic) IS - 1424-8220 (Linking) VI - 22 IP - 23 DP - 2022 Dec 6 TI - Bounded Model Checking for Metric Temporal Logic Properties of Timed Automata with Digital Clocks. LID - 10.3390/s22239552 [doi] LID - 9552 AB - Metric temporal logic (MTL) is a popular real-time extension of linear temporal logic (LTL). This paper presents a new simple SAT-based bounded model-checking (SAT-BMC) method for MTL interpreted over discrete infinite timed models generated by discrete timed automata with digital clocks. We show a new translation of the existential part of MTL to the existential part of linear temporal logic with a new set of atomic propositions and present the details of the new translation. We compare the new method's advantages to the old method based on a translation of the hard reset LTL (HLTL). Our method does not need new clocks or new transitions. It uses only one path and requires a smaller number of propositional variables and clauses than the HLTL-based method. We also implemented the new method, and as a case study, we applied the technique to analyze several systems. We support the theoretical description with the experimental results demonstrating the method's efficiency. FAU - Zbrzezny, Agnieszka M AU - Zbrzezny AM AUID- ORCID: 0000-0001-9897-3561 AD - Faculty of Mathematics and Computer Science, University of Warmia and Mazury, Sloneczna 54, 10-710 Olsztyn, Poland. FAU - Zbrzezny, Andrzej AU - Zbrzezny A AUID- ORCID: 0000-0003-2771-9683 AD - Department of Mathematics and Computer Science, Jan Dlugosz University in Czestochowa, Armii Krajowej 13/15, 42-200 Czestochowa, Poland. LA - eng PT - Journal Article DEP - 20221206 PL - Switzerland TA - Sensors (Basel) JT - Sensors (Basel, Switzerland) JID - 101204366 SB - IM PMC - PMC9737090 OTO - NOTNLM OT - bounded model checking OT - digital clocks OT - metric temporal logic OT - satisfiability problem OT - timed automata COIS- The authors declare no conflict of interest. EDAT- 2022/12/12 06:00 MHDA- 2022/12/12 06:01 PMCR- 2022/12/06 CRDT- 2022/12/11 01:39 PHST- 2022/11/03 00:00 [received] PHST- 2022/11/30 00:00 [revised] PHST- 2022/12/02 00:00 [accepted] PHST- 2022/12/11 01:39 [entrez] PHST- 2022/12/12 06:00 [pubmed] PHST- 2022/12/12 06:01 [medline] PHST- 2022/12/06 00:00 [pmc-release] AID - s22239552 [pii] AID - sensors-22-09552 [pii] AID - 10.3390/s22239552 [doi] PST - epublish SO - Sensors (Basel). 2022 Dec 6;22(23):9552. doi: 10.3390/s22239552.