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We introduce a new formalism of higher-dimensional timed automata, based on Pratt and van Glabbeek’s higher-dimensional automata and Alur and Dill’s timed automata. We prove that their reachability is PSPACE-complete and can be decided using zone-based algorithms. We also extend the setting to higher-dimensional hybrid automata.The interest of our formalism is in modeling systems which exhibit both real-time behavior and concurrency. Other existing formalisms for real-time modeling identify concurrency and interleaving, which, as we shall argue, is problematic.
@Article{fahrenberg:LITES.8.2.3,
author = {Fahrenberg, Uli},
title = {{Higher-Dimensional Timed and Hybrid Automata}},
journal = {Leibniz Transactions on Embedded Systems},
pages = {03:1--03:16},
ISSN = {2199-2002},
year = {2022},
volume = {8},
number = {2},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops.dagstuhl.de/entities/document/10.4230/LITES.8.2.3},
URN = {urn:nbn:de:0030-drops-192951},
doi = {10.4230/LITES.8.2.3},
annote = {Keywords: timed automaton, higher-dimensional automaton, precubical set, real time, non-interleaving concurrency, hybrid automaton}
}