Verification of language based fault-tolerance

  • Authors:
  • Clara Benac Earle;Lars-Åke Fredlund

  • Affiliations:
  • Computing Laboratory, University of Kent, England;,LSIIS, Facultad de Informática, Universidad Politécnica de Madrid

  • Venue:
  • EUROCAST'05 Proceedings of the 10th international conference on Computer Aided Systems Theory
  • Year:
  • 2005

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Abstract

In this paper we target the verification of fault tolerant aspects of distributed applications written in the Erlang programming language. Erlang programmers mostly work with ready-made language components. Our approach to verification of fault tolerance is to verify systems built using a central component of most Erlang software, a generic server component with fault tolerance handling. To verify such Erlang programs we automatically translate them into processes of the μCRL process algebra, generate their state spaces, and use a model checker to determine whether they satisfy correctness properties specified in the μ-calculus. The key observation of this paper is that, due to the usage of these higher-level design patterns, the state space generated from a Erlang program, even with failures occurring, is relatively small, and can be generated automatically.