Concurrent algorithms are notoriously dif\u0002ficult to design correctly, and high performance algorithms that make little or no use of locks even more so. In this paper, we describe a formal verification of a recent concurrent data structure Scalable NonZero Indicators. The algorithm supports incrementing, decrementing, and querying the shared counter in an ef\u0002ficient and linearizable way without blocking. The algorithm is highly non-trivial and it is challenging to prove the correctness. We have proved that the algorithm satisfi\u0002es linearizability, by showing a trace refinement relation from the concrete implementation to its abstract speci\u0002fication. These models are specifi\u0002ed in CSP and verifi\u0002ed automatically using the model checking toolkit PAT.<\/p>\n","protected":false},"excerpt":{"rendered":"
Concurrent algorithms are notoriously dif\u0002ficult to design correctly, and high performance algorithms that make little or no use of locks even more so. In this paper, we describe a formal verification of a recent concurrent data structure Scalable NonZero Indicators. The algorithm supports incrementing, decrementing, and querying the shared counter in an ef\u0002ficient and linearizable […]<\/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":[13561],"msr-publication-type":[193716],"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-246716","msr-research-item","type-msr-research-item","status-publish","hentry","msr-research-area-algorithms","msr-locale-en_us"],"msr_publishername":"","msr_edition":"The 21st International Conference on Software Engineering and Knowledge Engineering (SEKE'2009), Boston, U.S.A., July 2009.","msr_affiliation":"","msr_published_date":"2009-07-30","msr_host":"","msr_duration":"","msr_version":"","msr_speaker":"","msr_other_contributors":"","msr_booktitle":"","msr_pages_string":"","msr_chapter":"","msr_isbn":"","msr_journal":"","msr_volume":"","msr_number":"","msr_editors":"","msr_series":"","msr_issue":"","msr_organization":"","msr_how_published":"","msr_notes":"","msr_highlight_text":"","msr_release_tracker_id":"","msr_original_fields_of_study":"","msr_download_urls":"","msr_external_url":"","msr_secondary_video_url":"","msr_longbiography":"","msr_microsoftintellectualproperty":1,"msr_main_download":"457524","msr_publicationurl":"","msr_doi":"","msr_publication_uploader":[{"type":"file","title":"Formal Veri\u0002cation of Scalable NonZero Indicators","viewUrl":"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2016\/06\/seke09_snzi.pdf","id":457524,"label_id":0}],"msr_related_uploader":"","msr_attachments":[],"msr-author-ordering":[{"type":"text","value":"Shao Jie Zhang","user_id":0,"rest_url":false},{"type":"text","value":"Yang Liu","user_id":0,"rest_url":false},{"type":"text","value":"Jun Sun","user_id":0,"rest_url":false},{"type":"text","value":"Jin Song Dong","user_id":0,"rest_url":false},{"type":"text","value":"Yanhong A. 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