Local reasoning about a copying garbage collector

  • Authors:
  • Noah Torp-Smith;Lars Birkedal;John C. Reynolds

  • Affiliations:
  • IT University of Copenhagen;IT University of Copenhagen;Carnegie Mellon University

  • Venue:
  • ACM Transactions on Programming Languages and Systems (TOPLAS)
  • Year:
  • 2008

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Abstract

We present a programming language, model, and logic appropriate for implementing and reasoning about a memory management system. We state semantically what is meant by correctness of a copying garbage collector, and employ a variant of the novel separation logics to formally specify partial correctness of Cheney's copying garbage collector in our program logic. Finally, we prove that our implementation of Cheney's algorithm meets its specification using the logic we have given and auxiliary variables.