Formalization of variables access constraints to support compositionality of liveness properties

  • Iswb Prasetya
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 780)


Because reasoning about programs' liveness behavior is difficult people become interested in the potential of theorem provers to aid verification. In extending a theorem prover with a lifeness logic it would be nice if compositionality is also supported since it is a property of a great practical interest: it allows modularity in design. However, a straightforward extension that only embodies the essence of the logic will fail to do so. In implementing such an extension we should therefore be aware of the technical details required for compositionality. In particular, compositionality of progress under parallel composition depends on the concept of variable accessibility. Therefore, this concept has to be explicitly present in the extension. This paper is about the formalization of access constraints to support compositionality.


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Copyright information

© Springer-Verlag Berlin Heidelberg 1994

Authors and Affiliations

  • Iswb Prasetya
    • 1
  1. 1.Vakgroep InformaticaRijksuniversiteit UtrechtTB UtrechtNederland

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