Systematic correct construction of self-stabilizing systems: a case study

  • Authors:
  • Ananda Basu;Borzoo Bonakdarpour;Marius Bozga;Joseph Sifakis

  • Affiliations:
  • VERIMAG, Gières, France;Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, Ontario, Canada;VERIMAG, Gières, France;VERIMAG, Gières, France

  • Venue:
  • SSS'10 Proceedings of the 12th international conference on Stabilization, safety, and security of distributed systems
  • Year:
  • 2010

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Abstract

Design and implementation of distributed algorithms often involve many subtleties due to their complex structure, non-determinism, and low atomicity as well as occurrence of unanticipated physical events such as faults. Thus, constructing correct distributed systems has always been a challenge and often subject to serious errors. We present a methodology for component-based modeling, verification, and performance evaluation of self-stabilizing systems based on the BIP framework. In BIP, a system is modeled as the composition of a set of atomic components by using two types of operators: interactions describing synchronization constraints between components, and priorities to specify scheduling constraints. The methodology involves three steps illustrated using the distributed reset algorithm due to Arora and Gouda. First, a high-level model of the algorithm is built in BIP from the set of its processes by using powerful primitives for multi-party interactions and scheduling. Then, we use this model for verification of properties of a self-stabilizing algorithm. Finally, a distributed model which is observationally equivalent to the high-level model is generated.