Solving Non-linear Polynomial Arithmetic via SAT Modulo Linear Arithmetic

  • Authors:
  • Cristina Borralleras;Salvador Lucas;Rafael Navarro-Marset;Enric Rodríguez-Carbonell;Albert Rubio

  • Affiliations:
  • Universidad de Vic, Spain;Universitat Politècnica de València, Spain;Universitat Politècnica de València, Spain;Universitat Politècnica de Catalunya, Barcelona, Spain;Universitat Politècnica de Catalunya, Barcelona, Spain

  • Venue:
  • CADE-22 Proceedings of the 22nd International Conference on Automated Deduction
  • Year:
  • 2009

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Abstract

Polynomial constraint-solving plays a prominent role in several areas of engineering and software verification. In particular, polynomial constraint solving has a long and successful history in the development of tools for proving termination of programs. Well-known and very efficient techniques, like SAT algorithms and tools, have been recently proposed and used for implementing polynomial constraint solving algorithms through appropriate encodings. However, powerful techniques like the ones provided by the SMT (SAT modulo theories) approach for linear arithmetic constraints (over the rationals) are underexplored to date. In this paper we show that the use of these techniques for developing polynomial constraint solvers outperforms the best existing solvers and provides a new and powerful approach for implementing better and more general solvers for termination provers.