A Decidable Logic for Describing Linked Data Structures

  • Authors:
  • Michael Benedikt;Thomas W. Reps;Shmuel Sagiv

  • Affiliations:
  • -;-;-

  • Venue:
  • ESOP '99 Proceedings of the 8th European Symposium on Programming Languages and Systems
  • Year:
  • 1999

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Abstract

This paper aims to provide a better formalism for describing properties of linked data structures (e.g., lists, trees, graphs), as well as the intermediate states that arise when such structures are destructively updated. The paper defines a new logic that is suitable for these purposes (called Lr, for "logic of reachability expressions"). We show that Lr is decidable, and explain how Lr relates to two previously defined structuredescription formalisms ("path matrices" and "static shape graphs") by showing how an arbitrary shape descriptor from each of these formalisms can be translated into an Lr formula.