کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
424216 685359 2008 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparing CSP and SAT Solvers for Polynomial Constraints in Termination Provers
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نظریه محاسباتی و ریاضیات
پیش نمایش صفحه اول مقاله
Comparing CSP and SAT Solvers for Polynomial Constraints in Termination Provers
چکیده انگلیسی

Proofs of termination in term rewriting involve solving constraints between terms coming from (parts of) the rules of the term rewriting system. A common way to deal with such constraints in termination tools is treating them as polynomial constraints. Several recent works develop connections between these problems and more standard constraint solving problems for which well-known and efficient techniques apply. In particular, SAT techniques are receiving increasing attention in the field. The main idea is encoding polynomial constraints as propositional constraints which can (hopefully) be efficiently managed by using state-of-the-art SAT solvers. We have recently developed an algorithm for solving constraints in finite (small) domains of coefficients which are appropriate for termination tools. This algorithm benefits from the use of a specialized representation of the elements in the domain and the corresponding polynomials which permits using efficient arithmetics and constraint propagation techniques. In this paper we discuss these approaches, compare them from an experimental point of view, and point to possible improvements.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electronic Notes in Theoretical Computer Science - Volume 206, 8 April 2008, Pages 75-90