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Controllers for the Verification of Communicating Multi-pushdown Systems

  • C. Aiswarya
  • Paul Gastin
  • K. Narayan Kumar
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8704)

Abstract

Multi-pushdowns communicating via queues are formal models of multi-threaded programs communicating via channels. They are turing powerful and much of the work on their verification has focussed on under-approximation techniques. Any error detected in the under-approximation implies an error in the system. However the successful verification of the under-approximation is not as useful if the system exhibits unverified behaviours. Our aim is to design controllers that observe/restrict the system so that it stays within the verified under-approximation. We identify some important properties that a good controller should satisfy. We consider an extensive under-approximation class, construct a distributed controller with the desired properties and also establish the decidability of verification problems for this class.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • C. Aiswarya
    • 1
  • Paul Gastin
    • 2
  • K. Narayan Kumar
    • 3
  1. 1.Uppsala UniversitySweden
  2. 2.LSV, ENS Cachan, CNRS & INRIAFrance
  3. 3.Chennai Mathematical InstituteIndia

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