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On the Complexity of Consistency and Complete State Coding for Signal Transition Graphs
Turku, Finland June 28-June 30
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/ACSD.2006.17Sixth International Conference on App ...
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Javier Esparza, Univ. Stuttgart, Germany
Petr Jan?car, TU Ostrava, Czechia
Alexander Miller, Univ. Stuttgart, Germany
Signal Transition Graphs (STGs) are a popular formalism for the specification of asynchronous circuits. A necessary condition for the implementability of an STG is the existence of a consistent and complete state encoding. For an important subclass of STGs, the marked graph STGs, we show that checking consistency is polynomial, but checking the existence of a complete state coding is co-NP-complete. In fact, co-NP-completeness already holds for acyclic and 1-bounded marked graph STGs and for live and 1-bounded marked graph STGs. We add some relevant results for freechoice, bounded, and general STGs.
Citation:
Javier Esparza, Petr Jan?car, Alexander Miller, "On the Complexity of Consistency and Complete State Coding for Signal Transition Graphs," acsd, pp.47-56, Sixth International Conference on Application of Concurrency to System Design (ACSD'06), 2006
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