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Owicki-Gries Reasoning for C11 RAR

Authors Sadegh Dalvandi , Simon Doherty , Brijesh Dongol , Heike Wehrheim

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Author Details

Sadegh Dalvandi
  • University of Surrey, United Kingdom
Simon Doherty
  • University of Sheffield, United Kingdom
Brijesh Dongol
  • University of Surrey, United Kingdom
Heike Wehrheim
  • Paderborn University, Germany

Funding

  • Dalvandi, Sadegh: Supported by EPSRC Grant EP/R032556/1.
  • Doherty, Simon: Supported by EPSRC Grant EP/R032351/1.
  • Dongol, Brijesh: Supported by EPSRC Grant EP/R032556/1.
  • Wehrheim, Heike: Supported by DFG grant WE 2290/12-1.

Cite As Get BibTex

Sadegh Dalvandi, Simon Doherty, Brijesh Dongol, and Heike Wehrheim. Owicki-Gries Reasoning for C11 RAR. In 34th European Conference on Object-Oriented Programming (ECOOP 2020). Leibniz International Proceedings in Informatics (LIPIcs), Volume 166, pp. 11:1-11:26, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2020) https://doi.org/10.4230/LIPIcs.ECOOP.2020.11

Abstract

Owicki-Gries reasoning for concurrent programs uses Hoare logic together with an interference freedom rule for concurrency. In this paper, we develop a new proof calculus for the C11 RAR memory model (a fragment of C11 with both relaxed and release-acquire accesses) that allows all Owicki-Gries proof rules for compound statements, including non-interference, to remain unchanged. Our proof method features novel assertions specifying thread-specific views on the state of programs. This is combined with a set of Hoare logic rules that describe how these assertions are affected by atomic program steps. We demonstrate the utility of our proof calculus by verifying a number of standard C11 litmus tests and Peterson’s algorithm adapted for C11. Our proof calculus and its application to program verification have been fully mechanised in the theorem prover Isabelle.

Subject Classification

ACM Subject Classification
  • Theory of computation → Logic and verification
  • Theory of computation → Hoare logic
  • Theory of computation → Concurrency
  • Theory of computation → Operational semantics
  • Theory of computation → Program reasoning
Keywords
  • C11
  • Verification
  • Hoare logic
  • Owicki-Gries
  • Isabelle

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Supplementary Materials

References

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