NP-completeness of small conflict set generation for congruence closure

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NP-completeness of small conflict set generation for congruence closure

The efficiency of satisfiability modulo theories (SMT) solvers is dependent on the capability of theory reasoners to provide small conflict sets, i.e. small unsatisfiable subsets from unsatisfiable sets of literals. Decision procedures for uninterpreted symbols (i.e. congruence closure algorithms) date back from the very early days of SMT. Nevertheless, to the best of our knowledge, the complex...

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ژورنال

عنوان ژورنال: Formal Methods in System Design

سال: 2017

ISSN: 0925-9856,1572-8102

DOI: 10.1007/s10703-017-0283-x