,
Bastien Thomas,
Josef Widder
Creative Commons Attribution 4.0 International license
Distributed algorithms typically run over arbitrary many processes and may involve unboundedly many rounds, making the automated verification of their correctness challenging. Building on domain theory, we introduce a framework that abstracts infinite-state distributed systems that represent distributed algorithms into finite-state guard automata. The soundness of the approach corresponds to the Scott-continuity of the abstraction, which relies on the assumption that the distributed algorithms are layered. Guard automata thus enable the verification of safety and liveness properties of distributed algorithms.
@InProceedings{bertrand_et_al:LIPIcs.CONCUR.2021.15,
author = {Bertrand, Nathalie and Thomas, Bastien and Widder, Josef},
title = {{Guard Automata for the Verification of Safety and Liveness of Distributed Algorithms}},
booktitle = {32nd International Conference on Concurrency Theory (CONCUR 2021)},
pages = {15:1--15:17},
series = {Leibniz International Proceedings in Informatics (LIPIcs)},
ISBN = {978-3-95977-203-7},
ISSN = {1868-8969},
year = {2021},
volume = {203},
editor = {Haddad, Serge and Varacca, Daniele},
publisher = {Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
address = {Dagstuhl, Germany},
URL = {https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CONCUR.2021.15},
URN = {urn:nbn:de:0030-drops-143926},
doi = {10.4230/LIPIcs.CONCUR.2021.15},
annote = {Keywords: Verification, Distributed algorithms, Domain theory}
}