Several notions of synchronizability of a message-passing system have been introduced in the literature. Roughly, a system is called synchronizable if every execution can be rescheduled so that it meets certain criteria, e.g., a channel bound. We provide a framework, based on MSO logic and (special) tree-width, that unifies existing definitions, explains their good properties, and allows one to easily derive other, more general definitions and decidability results for synchronizability.
@InProceedings{bollig_et_al:LIPIcs.CONCUR.2021.14, author = {Bollig, Benedikt and Di Giusto, Cinzia and Finkel, Alain and Laversa, Laetitia and Lozes, Etienne and Suresh, Amrita}, title = {{A Unifying Framework for Deciding Synchronizability}}, booktitle = {32nd International Conference on Concurrency Theory (CONCUR 2021)}, pages = {14:1--14:18}, 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.2021.14}, URN = {urn:nbn:de:0030-drops-143917}, doi = {10.4230/LIPIcs.CONCUR.2021.14}, annote = {Keywords: communicating finite-state machines, message sequence charts, synchronizability, MSO logic, special tree-width} }
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