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Automating Regression Verification

Reviewed Paper In Proceedings

Author(s):Dennis Felsing, Sarah Grebing, Vladimir Klebanov, Philipp Rümmer, and Mattias Ulbrich
In:29th IEEE/ACM International Conference on Automated Software Engineering (ASE 2014)
Series:ASE '14


Regression verification is an approach complementing regression testing with formal verification. The goal is to formally prove that two versions of a program behave either equally or differently in a precisely specified way. In this paper, we present a novel automatic approach for regression verification that reduces the equivalence of two related imperative integer programs to Horn constraints over uninterpreted predicates. Subsequently, state-of-the-art SMT solvers are used to solve the constraints. We have implemented the approach, and our experiments show non-trivial integer programs that can now be proved equivalent without further user input.


  author = {Dennis Felsing and Sarah Grebing and Vladimir Klebanov and 
            Philipp R{\"u}mmer and Mattias Ulbrich},
  title = {Automating Regression Verification},
  booktitle = {29th IEEE/ACM International Conference on Automated Software Engineering (ASE 2014)},
  series = {ASE '14},
  year = {2014},
  month = sep,
  pages = {349--360},
  numpages = {12},
  doi = {10.1145/2642937.2642987},
  acmid = {2642987},
  publisher = {ACM},
  _keywords = {formal methods, invariant generation, program equivalence, regression verification}