On Freezing and Reactivating Learnt Clauses

@inproceedings{Audemard2011OnFA,
  title={On Freezing and Reactivating Learnt Clauses},
  author={Gilles Audemard and Jean-Marie Lagniez and Bertrand Mazure and Lakhdar Sais},
  booktitle={SAT},
  year={2011}
}
In this paper, we propose a new dynamic management policy of the learnt clause database in modern SAT solvers. It is based on a dynamic freezing and activation principle of the learnt clauses. At a given search state, using a relevant selection function, it activates the most promising learnt clauses while freezing irrelevant ones. In this way, clauses learned at previous steps can be frozen at the current step and might be activated again in future steps of the search process. Our strategy… CONTINUE READING
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