A reversible abstract machine and its space overhead

  • Authors:
  • Michael Lienhardt;Ivan Lanese;Claudio Antares Mezzina;Jean-Bernard Stefani

  • Affiliations:
  • Focus Team, University of Bologna/INRIA, Italy;Focus Team, University of Bologna/INRIA, Italy;SOA Unit, FBK, Trento, Italy;INRIA Grenoble-Rhône-Alpes, France

  • Venue:
  • FMOODS'12/FORTE'12 Proceedings of the 14th joint IFIP WG 6.1 international conference and Proceedings of the 32nd IFIP WG 6.1 international conference on Formal Techniques for Distributed Systems
  • Year:
  • 2012

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Abstract

We study in this paper the cost of making a concurrent programming language reversible. More specifically, we take an abstract machine for a fragment of the Oz programming language and make it reversible. We show that the overhead of the reversible machine with respect to the original one in terms of space is at most linear in the number of execution steps. We also show that this bound is tight since some programs cannot be made reversible without storing a commensurate amount of information.