{"id":160777,"date":"2011-02-01T00:00:00","date_gmt":"2011-02-01T00:00:00","guid":{"rendered":"https:\/\/www.microsoft.com\/en-us\/research\/msr-research-item\/memoir-formal-specs-and-correctness-proofs\/"},"modified":"2018-10-16T20:10:22","modified_gmt":"2018-10-17T03:10:22","slug":"memoir-formal-specs-and-correctness-proofs","status":"publish","type":"msr-research-item","link":"https:\/\/www.microsoft.com\/en-us\/research\/publication\/memoir-formal-specs-and-correctness-proofs\/","title":{"rendered":"Memoir&#8212;Formal Specs and Correctness Proofs"},"content":{"rendered":"<div class=\"asset-content\">\n<p>This tech report presents formal specifications for the Memoir system and proofs of the system&#8217;s correctness. The proofs were constructed manually but have been programmatically machine-verified using the TLA+ Proof System. Taken together, the specifications and proofs contain 61 top-level definitions, 182 LET-IN definitions, 74 named theorems, and 5816 discrete proof steps. The proofs address only the safety of the Memoir system, not the liveness of the system. Safety is proven by showing that a formal low-level specification of the Memoir-Basic system implements a formal high-level specification of desired behavior. The proofs then show that a formal specification of the Memoir-Opt system implements the Memoir-Basic system.<\/p>\n<\/div>\n<p><!-- .asset-content --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This tech report presents formal specifications for the Memoir system and proofs of the system&#8217;s correctness. The proofs were constructed manually but have been programmatically machine-verified using the TLA+ Proof System. Taken together, the specifications and proofs contain 61 top-level definitions, 182 LET-IN definitions, 74 named theorems, and 5816 discrete proof steps. The proofs address [&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":[13558,13547],"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-160777","msr-research-item","type-msr-research-item","status-publish","hentry","msr-research-area-security-privacy-cryptography","msr-research-area-systems-and-networking","msr-locale-en_us"],"msr_publishername":"Microsoft Research","msr_edition":"","msr_affiliation":"","msr_published_date":"2011-02-01","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-TR-2011-19","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":"220612","msr_publicationurl":"","msr_doi":"","msr_publication_uploader":[{"type":"file","title":"Memoir-Proof.pdf","viewUrl":"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2011\/02\/Memoir-Proof.pdf","id":220612,"label_id":0},{"type":"file","title":"MemoirTLA.zip","viewUrl":"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2011\/02\/MemoirTLA.zip","id":220615,"label_id":0}],"msr_related_uploader":"","msr_attachments":[{"id":220612,"url":"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2011\/02\/Memoir-Proof.pdf"},{"id":220615,"url":"https:\/\/www.microsoft.com\/en-us\/research\/wp-content\/uploads\/2011\/02\/MemoirTLA.zip"}],"msr-author-ordering":[{"type":"user_nicename","value":"johndo","user_id":32367,"rest_url":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/microsoft-research\/v1\/researchers?person=johndo"},{"type":"user_nicename","value":"lorch","user_id":32732,"rest_url":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/microsoft-research\/v1\/researchers?person=lorch"},{"type":"user_nicename","value":"parno","user_id":33193,"rest_url":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/microsoft-research\/v1\/researchers?person=parno"},{"type":"user_nicename","value":"mickens","user_id":32912,"rest_url":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/microsoft-research\/v1\/researchers?person=mickens"},{"type":"text","value":"Jonathan M. 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