Detail publikace

Sky Is Not the Limit: Tighter Rank Bounds for Elevator Automata in Buchi Automata Complementation

HAVLENA, V. LENGÁL, O. ŠMAHLÍKOVÁ, B.

Originální název

Sky Is Not the Limit: Tighter Rank Bounds for Elevator Automata in Buchi Automata Complementation

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

We propose several heuristics for mitigating one of the main causes of combinatorial explosion in rank-based complementation of Büchi automata (BAs): unnecessarily high bounds on the ranks of states. First, we identify elevator automata, which is a large class of BAs (generalizing semi-deterministic BAs), occurring often in practice, where ranks of states are bounded according to the structure of strongly connected components. The bounds for elevator automata also carry over to general BAs that contain elevator automata as a sub-structure. Second, we introduce two techniques for refining bounds on the ranks of BA states using data-flow analysis of the automaton. We implement out techniques as an extension of the tool Ranker for BA complementation and show that they indeed greatly prune the generated state space, obtaining significantly better results and outperforming other state-of-the-art tools on a large set of benchmarks.

Klíčová slova

Büchi automata, complementation, elevator automata, model checking

Autoři

HAVLENA, V.; LENGÁL, O.; ŠMAHLÍKOVÁ, B.

Vydáno

2. 4. 2022

Nakladatel

Springer Verlag

Místo

Munich

ISBN

978-3-030-99526-3

Kniha

Proceedings of TACAS'22

ISSN

0302-9743

Periodikum

Lecture Notes in Computer Science

Číslo

13244

Stát

Spolková republika Německo

Strany od

118

Strany do

136

Strany počet

19

BibTex

@inproceedings{BUT175859,
  author="Vojtěch {Havlena} and Ondřej {Lengál} and Barbora {Šmahlíková}",
  title="Sky Is Not the Limit: Tighter Rank Bounds for Elevator Automata in Buchi Automata Complementation",
  booktitle="Proceedings of TACAS'22",
  year="2022",
  journal="Lecture Notes in Computer Science",
  number="13244",
  pages="118--136",
  publisher="Springer Verlag",
  address="Munich",
  doi="10.1007/978-3-030-99527-0\{_}7",
  isbn="978-3-030-99526-3",
  issn="0302-9743"
}