{"id":152747,"date":"2004-07-01T00:00:00","date_gmt":"2004-07-01T00:00:00","guid":{"rendered":"https:\/\/www.microsoft.com\/en-us\/research\/msr-research-item\/stuck-free-conformance-theory-for-ccs\/"},"modified":"2018-10-16T20:13:44","modified_gmt":"2018-10-17T03:13:44","slug":"stuck-free-conformance-theory-for-ccs","status":"publish","type":"msr-research-item","link":"https:\/\/www.microsoft.com\/en-us\/research\/publication\/stuck-free-conformance-theory-for-ccs\/","title":{"rendered":"Stuck-Free Conformance Theory for CCS"},"content":{"rendered":"<div class=\"asset-content\">\n<p>We present a novel refinement relation (stuck-free conformance) for CCS processes, which satisfies the substitutability property: If an implementation I conforms to a specification S, then C[S] stuck-free implies C[I] stuck-free, on any selected names ~a and for all CCS contexts C. Stuck-freedom is related to the CSP notion of deadlock, but it is more discriminative by taking orphan messages in asynchronous systems into account. We prove that conformance is a precongruence, i.e., it is preserved by all CCS contexts, thereby supporting modular refinement. We distinguish conformance from the related preorders, stable failures refinement in CSP and refusal preorder in CCS. Finally, we consider a family of parameterized refinement relations that can be generated from the format of our definition of stuck-free conformance.<\/p>\n<\/div>\n<p><!-- .asset-content --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>We present a novel refinement relation (stuck-free conformance) for CCS processes, which satisfies the substitutability property: If an implementation I conforms to a specification S, then C[S] stuck-free implies C[I] stuck-free, on any selected names ~a and for all CCS contexts C. Stuck-freedom is related to the CSP notion of deadlock, but it is more [&hellip;]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","footnotes":""},"msr-content-type":[3],"msr-research-highlight":[],"research-area":[13547],"msr-publication-type":[193718],"msr-product-type":[],"msr-focus-area":[],"msr-platform":[],"msr-download-source":[],"msr-locale":[268875],"msr-post-option":[],"msr-field-of-study":[],"msr-conference":[],"msr-journal":[],"msr-impact-theme":[],"msr-pillar":[],"class_list":["post-152747","msr-research-item","type-msr-research-item","status-publish","hentry","msr-research-area-systems-and-networking","msr-locale-en_us"],"msr_publishername":"","msr_edition":"Proceedings of the 16th International Conference on Computer Aided Verification 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