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PACE Solver Description: DAGer - Cutting out Cycles with MaxSAT

Authors Rafael Kiesel , André Schidler

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ACM Subject Classification
  • Theory of computation → Parameterized complexity and exact algorithms
Keywords
  • Directed Feeback Vertex Set
  • Data Reductions
  • Incremental MaxSAT

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Abstract

We describe the solver DAGer for the Directed Feedback Vertex Set (DFVS) problem, as it was submitted to the exact track of the 2022 PACE Challenge. Our approach first applies a wide range of preprocessing techniques involving both well-known data reductions for DFVS as well as non-trivial adaptations from the vertex cover problem. For the actual solving, we found that using a MaxSAT solver with incremental constraints achieves a good performance.

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Rafael Kiesel and André Schidler. PACE Solver Description: DAGer - Cutting out Cycles with MaxSAT. In 17th International Symposium on Parameterized and Exact Computation (IPEC 2022). Leibniz International Proceedings in Informatics (LIPIcs), Volume 249, pp. 32:1-32:4, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2022) https://doi.org/10.4230/LIPIcs.IPEC.2022.32

Author Details

Rafael Kiesel
  • TU Wien, Austria
André Schidler
  • TU Wien, Austria

Funding

This work has been supported by the FWF W1255(-N23).
  • Schidler, André: The author has been supported by the FWF (P32441) and the WWTF (ICT19-065).

Supplementary Materials

References

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