Model Checking Quantified Computation Tree Logic


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Rensink, A. (2006) Model Checking Quantified Computation Tree Logic. In: Concurrency Theory (CONCUR), 27-30 Aug 2006, Bonn, Germany (pp. pp. 110-125).

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Abstract:Propositional temporal logic is not suitable for expressing properties on the evolution of dynamically allocated entities over time. In particular, it is not possible to trace such entities through computation steps, since this requires the ability to freely mix quantification and temporal operators.

In this paper we study Quantified Computation Tree Logic (QCTL), which extends the well-known propositional computation tree logic, PCTL, with first and (monadic) second order quantification. The semantics of QCTL is expressed on algebra automata, which are automata enriched with abstract algebras at each state, and with reallocations at each transition that express an injective renaming of the algebra elements from one state to the next. The reallocations enable minimization of the automata modulo bisimilarity, essentially through symmetry reduction. Our main result is to show that each combination of a QCTL formula and a finite algebra automaton can be transformed to an equivalent PCTL formula over an ordinary Kripke structure, while maintaining the symmetry reduction. The transformation is structure-preserving on the formulae. This gives rise to a method to lift any model checking technique for PCTL to QCTL.
Item Type:Conference or Workshop Item
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Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/62865
Official URL:http://dx.doi.org/10.1007/11817949_8
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