Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik GmbH Schloss Dagstuhl - Leibniz-Zentrum fuer Informatik GmbH scholarly article en Kaiser, Jan-Oliver; Dang, Hoang-Hai; Dreyer, Derek; Lahav, Ori; Vafeiadis, Viktor http://www.dagstuhl.de/lipics License
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Strong Logic for Weak Memory: Reasoning About Release-Acquire Consistency in Iris

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Abstract

The field of concurrent separation logics (CSLs) has recently undergone two exciting developments: (1) the Iris framework for encoding and unifying advanced higher-order CSLs and formalizing them in Coq, and (2) the adaptation of CSLs to account for weak memory models, notably C11's release-acquire (RA) consistency. Unfortunately, these developments are seemingly incompatible, since Iris only applies to languages with an operational interleaving semantics, while C11 is defined by a declarative (axiomatic) semantics. In this paper, we show that, on the contrary, it is not only feasible but useful to marry these developments together. Our first step is to provide a novel operational characterization of RA+NA, the fragment of C11 containing RA accesses and "non-atomic" (normal data) accesses. Instantiating Iris with this semantics, we then derive higher-order variants of two prominent RA+NA logics, GPS and RSL. Finally, we deploy these derived logics in order to perform the first mechanical verifications (in Coq) of several interesting case studies of RA+NA programming. In a nutshell, we provide the first foundationally verified framework for proving programs correct under C11's weak-memory semantics.

BibTeX - Entry

@InProceedings{kaiser_et_al:LIPIcs:2017:7275,
  author =	{Jan-Oliver Kaiser and Hoang-Hai Dang and Derek Dreyer and Ori Lahav and Viktor Vafeiadis},
  title =	{{Strong Logic for Weak Memory: Reasoning About Release-Acquire Consistency in Iris}},
  booktitle =	{31st European Conference on Object-Oriented Programming (ECOOP 2017)},
  pages =	{17:1--17:29},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-035-4},
  ISSN =	{1868-8969},
  year =	{2017},
  volume =	{74},
  editor =	{Peter M{\"u}ller},
  publisher =	{Schloss Dagstuhl--Leibniz-Zentrum fuer Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{http://drops.dagstuhl.de/opus/volltexte/2017/7275},
  URN =		{urn:nbn:de:0030-drops-72753},
  doi =		{10.4230/LIPIcs.ECOOP.2017.17},
  annote =	{Keywords: Weak memory models, release-acquire, concurrency, separation logic}
}

Keywords: Weak memory models, release-acquire, concurrency, separation logic
Seminar: 31st European Conference on Object-Oriented Programming (ECOOP 2017)
Issue date: 2017
Date of publication: 2017


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