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RobCoutel/NapSAT

Authors: Robin Coutelier

Abstract

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Robin Coutelier. RobCoutel/NapSAT (Software, NapSAT Source Code). Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2024)

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@misc{dagstuhl-artifact-22496,
   title = {{RobCoutel/NapSAT}}, 
   author = {Coutelier, Robin},
   note = {Software, swhId: \href{https://archive.softwareheritage.org/swh:1:dir:1308f5717399bd09dcad2de805cc42eaa5504854;origin=https://github.com/RobCoutel/NapSAT;visit=swh:1:snp:aff7ae6a3ea2f154e8a57a795ff68bea81d9baaa;anchor=swh:1:rev:df5a9ca4c2ddb6196dca5b89050634ce72d5fec3}{\texttt{swh:1:dir:1308f5717399bd09dcad2de805cc42eaa5504854}} (visited on 2024-11-28)},
   url = {https://github.com/RobCoutel/NapSAT},
   doi = {10.4230/artifacts.22496},
}

Document

DOI: 10.4230/LIPIcs.SAT.2024.9

Lazy Reimplication in Chronological Backtracking

Authors: Robin Coutelier, Mathias Fleury, and Laura Kovács

Published in: LIPIcs, Volume 305, 27th International Conference on Theory and Applications of Satisfiability Testing (SAT 2024)

Abstract

Chronological backtracking is an interesting SAT solving technique within CDCL reasoning, as it backtracks less aggressively upon conflicts. However, chronological backtracking is more difficult to maintain due to its weaker SAT solving invariants. This paper introduces a lazy reimplication procedure for missed lower implications in chronological backtracking. Our method saves propagations by reimplying literals on demand, rather than eagerly. Due to its modularity, our work can be replicated in other solvers, as shown by our results in the solvers CaDiCaL and Glucose.

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Robin Coutelier, Mathias Fleury, and Laura Kovács. Lazy Reimplication in Chronological Backtracking. In 27th International Conference on Theory and Applications of Satisfiability Testing (SAT 2024). Leibniz International Proceedings in Informatics (LIPIcs), Volume 305, pp. 9:1-9:19, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2024)

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@InProceedings{coutelier_et_al:LIPIcs.SAT.2024.9,
  author =	{Coutelier, Robin and Fleury, Mathias and Kov\'{a}cs, Laura},
  title =	{{Lazy Reimplication in Chronological Backtracking}},
  booktitle =	{27th International Conference on Theory and Applications of Satisfiability Testing (SAT 2024)},
  pages =	{9:1--9:19},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-334-8},
  ISSN =	{1868-8969},
  year =	{2024},
  volume =	{305},
  editor =	{Chakraborty, Supratik and Jiang, Jie-Hong Roland},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.SAT.2024.9},
  URN =		{urn:nbn:de:0030-drops-205313},
  doi =		{10.4230/LIPIcs.SAT.2024.9},
  annote =	{Keywords: Chronological Backtracking, CDCL, Invariants, Watcher Lists}
}

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Documents authored by Coutelier, Robin

RobCoutel/NapSAT

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Lazy Reimplication in Chronological Backtracking

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