SPASS Version 3.5

  • Authors:
  • Christoph Weidenbach;Dilyana Dimova;Arnaud Fietzke;Rohit Kumar;Martin Suda;Patrick Wischnewski

  • Affiliations:
  • Max-Planck-Institut für Informatik, Email: spass@mpi-inf.mpg.de, Saarbrücken D-66123;Max-Planck-Institut für Informatik, Email: spass@mpi-inf.mpg.de, Saarbrücken D-66123;Max-Planck-Institut für Informatik, Email: spass@mpi-inf.mpg.de, Saarbrücken D-66123;Max-Planck-Institut für Informatik, Email: spass@mpi-inf.mpg.de, Saarbrücken D-66123;Max-Planck-Institut für Informatik, Email: spass@mpi-inf.mpg.de, Saarbrücken D-66123;Max-Planck-Institut für Informatik, Email: spass@mpi-inf.mpg.de, Saarbrücken D-66123

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

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Abstract

SPASS is an automated theorem prover for full first-order logic with equality and a number of non-classical logics. This system description provides an overview of our recent developments in SPASS 3.5 including subterm contextual rewriting, improved split backtracking, a significantly faster FLOTTER implementation with additional control flags, completely symmetric implementation of forward and backward redundancy criteria, faster parsing with improved support for big files, faster and extended sort module, and support for include commands in input files. Finally, SPASS 3.5 can now parse files in TPTP syntax, comes with a new converter tptp2dfg and is distributed under a BSD style license.