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2007
Springer

The Complexity of Generalized Satisfiability for Linear Temporal Logic

11 years 3 months ago
The Complexity of Generalized Satisfiability for Linear Temporal Logic
In a seminal paper from 1985, Sistla and Clarke showed that satisfiability for Linear Temporal Logic (LTL) is either NP-complete or PSPACE-complete, depending on the set of temporal operators used. If, in contrast, the set of propositional operators is restricted, the complexity may decrease. This paper undertakes a systematic study of satisfiability for LTL formulae over restricted sets of propositional and temporal operators. Since every propositional operator corresponds to a Boolean function, there exist infinitely many propositional operators. In order to systematically cover all possible sets of them, we use Post's lattice. With its help, we determine the computational complexity of LTL satisfiability for all combinations of temporal operators and all but two classes of propositional functions. Each of these infinitely many problems is shown to be either PSPACE-complete, NP-complete, or in P.
Michael Bauland, Thomas Schneider 0002, Henning Sc
Added 16 Aug 2010
Updated 16 Aug 2010
Type Conference
Year 2007
Where FOSSACS
Authors Michael Bauland, Thomas Schneider 0002, Henning Schnoor, Ilka Schnoor, Heribert Vollmer
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