Specification-Based Program Repair Using SAT

  • Divya Gopinath
  • Muhammad Zubair Malik
  • Sarfraz Khurshid
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6605)


Removing bugs in programs – even when location of faulty statements is known – is tedious and error-prone, particularly because of the increased likelihood of introducing new bugs as a result of fixing known bugs. We present an automated approach for generating likely bug fixes using behavioral specifications. Our key insight is to replace a faulty statement that has deterministic behavior with one that has nondeterministic behavior, and to use the specification constraints to prune the ensuing nondeterminism and repair the faulty statement. As an enabling technology, we use the SAT-based Alloy tool-set to describe specification constraints as well as for solving them. Initial experiments show the effectiveness of our approach in repairing programs that manipulate structurally complex data. We believe specification-based automated debugging using SAT holds much promise.


Fault Localization Omission Error Repair Time Concrete State Control Flow Graph 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Divya Gopinath
    • 1
  • Muhammad Zubair Malik
    • 1
  • Sarfraz Khurshid
    • 1
  1. 1.The University of TexasAustinUSA

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