Reachability in Tree-Like Component Systems is PSPACE-Complete

  • Authors:
  • Mila Majster-Cederbaum;Nils Semmelrock

  • Affiliations:
  • Department of Computer Science, University Mannheim, Mannheim, Germany;Department of Computer Science, University Mannheim, Mannheim, Germany

  • Venue:
  • Electronic Notes in Theoretical Computer Science (ENTCS)
  • Year:
  • 2010

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Abstract

The reachability problem in component systems is PSPACE-complete. We show here that even the reachability problem in the subclass of component systems with ''tree-like'' communication is PSPACE-complete. For this purpose we reduce the question if a Quantified Boolean Formula (QBF) is true to the reachability problem in ''tree-like'' component systems.