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Scope-bounded multistack pushdown systems: fixed-point, sequentialization, and tree-width

La Torre, Salvatore and Gennaro, Parlato (2012) Scope-bounded multistack pushdown systems: fixed-point, sequentialization, and tree-width At 32nd Foundations of Software Technology and Theoretical Computer Science Conference (FSTTCS), India. 15 - 17 Dec 2012. 12 pp, pp. 173-184.

Record type: Conference or Workshop Item (Paper)

Abstract

We present a novel fixed-point algorithm to solve reachability of multi-stack pushdown systems restricted to runs of bounded-scope. The followed approach is compositional, in the sense that the runs of the system are summarized by bounded-size interfaces. Moreover, it is suitable for a direct implementation and can be exploited to prove two new results. We give a sequentialization for this class of systems, i.e., for each such multi-stack pushdown system we construct an equivalent single-stack pushdown system that faithfully simulates the behaviour of each thread. We prove that the behaviour graphs (multiply nested words) for these systems have bounded three-width, and thus a number of decidability results can be derived from Courcelle’s theorem.

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More information

Published date: 16 December 2012
Venue - Dates: 32nd Foundations of Software Technology and Theoretical Computer Science Conference (FSTTCS), India, 2012-12-15 - 2012-12-17
Keywords: model-checking, multi-threaded programs, sequentialization, tree-width
Organisations: Electronic & Software Systems

Identifiers

Local EPrints ID: 335128
URI: http://eprints.soton.ac.uk/id/eprint/335128
PURE UUID: f1b839b2-8f39-4a69-a6cf-a9d04b252f51

Catalogue record

Date deposited: 13 Mar 2012 10:29
Last modified: 18 Jul 2017 06:11

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Contributors

Author: Salvatore La Torre
Author: Parlato Gennaro

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