Strategies for combining decision procedures
نویسندگان
چکیده
منابع مشابه
Strategies for Combining Decision Procedures
Implementing efficient algorithms for combining decision procedures has been a challenge and their correctness precarious. In this paper we describe an inference system that has the classical Nelson-Oppen procedure at its core and includes several optimizations: variable abstraction with sharing, canonization of terms at the theory level, and Shostak’s streamlined generation of new equalities f...
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We give a detailed survey of the current state-of-the-art methods for combining decision procedures. We review the Nelson-Oppen combination method, Shostak method, and some very recent results on the combination of theories over non-disjoint signatures.
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The Nelson-Oppen combination method combines decision procedures for theories satisfying certain conditions into a decision procedure for their union. While the method is known to be correct in the setting of unsorted first-order logic, some current implementations of it appear in tools that use a sorted input language. So far, however, there have been no theoretical results on the correctness ...
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ژورنال
عنوان ژورنال: Theoretical Computer Science
سال: 2006
ISSN: 0304-3975
DOI: 10.1016/j.tcs.2005.11.025