Abstracting Complex Data Structures by Hyperedge Replacement

  • Authors:
  • Stefan Rieger;Thomas Noll

  • Affiliations:
  • Software Modeling and Verification Group, RWTH Aachen University, Aachen, Germany 52056;Software Modeling and Verification Group, RWTH Aachen University, Aachen, Germany 52056

  • Venue:
  • ICGT '08 Proceedings of the 4th international conference on Graph Transformations
  • Year:
  • 2008

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Abstract

We present a novel application of hyperedge replacement grammars, showing that they can serve as an intuitive formalism for abstractly modeling dynamic data structures. The aim of our framework is to extend finite-state verification techniques to handle pointer-manipulating programs operating on complex dynamic data structures that are potentially unbounded in their size. The idea is to represent both abstraction mappings on user-defined dynamic data structures and the (abstract) semantics of pointer-manipulating operations using graph grammars, supporting a smooth integration of the two aspects. We demonstrate how our framework can be employed for analysis and verification purposes, e.g., to prove that a procedure preserves structural invariants of the heap.