DEQ: Equivalence Checker for Deterministic Register Automata

  • A. S. MurawskiEmail author
  • S. J. Ramsay
  • N. Tzevelekos
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11781)


Register automata are one of the most studied automata models over infinite alphabets with applications in learning, systems modelling and program verification. We present an equivalence checker for deterministic register automata, called DEQ, based on a recent polynomial-time algorithm that employs group-theoretic techniques to achieve succinct representations of the search space. We compare the performance of our tool to other available implementations, notably in the learning library RALib and nominal frameworks LOIS and NLambda.



Research funded by EPSRC (EP/J019577/1, EP/P004172/1).


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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.University of OxfordOxfordUK
  2. 2.University of BristolBristolUK
  3. 3.Queen Mary University of LondonLondonUK

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