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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, shrink-to-fit=no">
<meta name="author" content="Katalin Fazekas">
<meta name="description" content="Postdoctoral Researcher, TU Wien">
<meta name="theme-color" content="#d5ddeb">
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<title>Katalin Fazekas - Homepage</title>
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<body>
<div class="container pt-5">
<div class="row pt-5">
<div class="col-md-3 pt-5 leftbar">
<div class="centered-txt fixed">
<p class="name">Katalin Fazekas</p>
<img src="assets/dk_portrait_pic_lila.png" class="profilepic pt-3 pb-2">
<!-- <div class="">
<p><code>k DOT katalin DOT fazekas<br>AT gmail DOT com</code></p>
</div> -->
<br><br>
<div class="centered-txt">
<a target="_blank" href="assets/KatalinFazekas-simple-cv.pdf"><i class="ai ai-cv ai-2x"></i></a>
<a target="_blank" href="https://scholar.google.com/citations?user=gGBdeUAAAAAJ"><i class="ai ai-google-scholar ai-2x"></i></a>
<a target="_blank" href="http://orcid.org/0000-0002-0497-3059"><i class="ai ai-orcid ai-2x"></i></a>
<a target="_blank" href="https://dblp.org/pid/194/1549.html"><i class="ai ai-dblp ai-2x"></i></a>
</div>
<br>
<div class="linkcol">
<a href="#contact">Contact</a><br>
<a href="#publications">Publications</a><br>
<a href="#technical_reports">Technical Reports</a><br>
<a href="#theses">Theses</a>
</div>
</div>
</div>
<div class="col-md-9 pt-5 content">
Since October 2021, I am a Hertha Firnberg Fellow
(funded by <a class="confshort" href="https://www.fwf.ac.at/en/research-funding/fwf-programmes/firnberg-programme/" target="_blank">FWF</a>)
in the group of
Formal Methods in Systems Engineering (<a class="confshort" href="https://forsyte.at/" target="_blank">FORSYTE</a>)
at the Technical University of Vienna (TU Wien).
In my current research I focus on improving the incremental reasoning methods of SAT and SMT solvers,
and thereby aim to push the boundaries of formal verification techniques.
I am interested in the theoretical study and practical improvement of algorithms
underlying SAT, QBF and SMT solvers.
<br> <br>
Previously I was a Research Fellow at the
Simons Institute for the Theory of Computing (UC Berkeley) in the
program <a class="confshort" href="https://simons.berkeley.edu/programs/sat2021" target="_blank">
'Satisfiability: Theory, Practice, and Beyond'</a>,
under the mentorship of <a class="confshort" href="https://web.eecs.umich.edu/~karem/" target="_blank">
Karem Sakallah</a> (spring semester 2021).
Before that, I was a post-doctoral researcher in the FORSYTE group at TU Wien,
focusing on the formal verification of AUTOSAR software components with
<a class="confshort" href="http://www.georg.weissenbacher.science/" target="_blank">
Georg Weissenbacher</a>.
<br> <br>
I obtained my PhD in the doctoral program
'Logical Methods in Computer Science' (<a class="confshort" href="https://logic-cs.at/" target="_blank">LogiCS</a>) funded by FWF,
under the supervision of
<a class="tag" href="http://fmv.jku.at/biere" target="_blank">Armin Biere</a>, at the Johannes Kepler University Linz in Austria.
<p class="header pt-5" id="contact">Contact</p>
<div class="py-2">
TU Wien<br>
Formal Methods in Systems Engineering<br>
Institute of Logic and Computation<br>
Favoritenstraße 9–11/192-4<br>
A-1040 Vienna, Austria<br><br>
<p>Email: <code>k DOT katalin DOT fazekas AT gmail DOT com</code></p>
</div>
<p class="header pt-5" id="publications">Publications</p>
<div class="py-2">
<p class="paper my-2 pl-2">
<span class="papertitle">CaDiCaL 2.0</span><br>
<span class="paper-authors">Armin Biere, Tobias Faller, Katalin Fazekas, Mathias Fleury, Nils Froleyks, Florian Pollitt</span><br>
<span class="conf">
International Conference on Computer Aided Verification
(<a class="confshort" href="https://i-cav.org/2024/">CAV'24</a>)
</span><br>
[ <a class="tag" href="papers/BiereFallerFazekasFleuryFroleyksPollitt-CAV24.pdf" target="_blank">preprint</a>
<span class="tagsep">|</span>
<a class="tag" href="bibs/cav24.bib" target="_blank">bib</a>
<span class="tagsep">|</span>
<a class="tag" href="https://github.com/arminbiere/cadical" target="_blank">source</a>
<!-- <span class="tagsep">|</span> -->
<!-- <a class="tag" href="talks/cav2024_talk.pdf" target="_blank">slides</a> -->
]
</p>
</div>
<div class="py-2">
<p class="paper my-2 pl-2">
<span class="papertitle">Certifying Incremental SAT Solving</span><br>
<span class="paper-authors">Katalin Fazekas, Florian Pollitt, Mathias Fleury, Armin Biere</span><br>
<span class="conf">
International Conference on Logic for Programming, Artificial Intelligence and Reasoning
(<a class="confshort" href="https://easychair.org/smart-program/LPAR2024/">LPAR'24</a>)
</span><br>
[ <a class="tag" href="papers/FazekasPollittFleuryBiere-LPAR24.pdf" target="_blank">preprint</a>
<span class="tagsep">|</span>
<a class="tag" href="bibs/lpar24.bib" target="_blank">bib</a>
<span class="tagsep">|</span>
<a class="tag" href="https://github.com/arminbiere/lidrup-check" target="_blank">source</a>
<span class="tagsep">|</span>
<a class="tag" href="talks/lpar2024_talk.pdf" target="_blank">slides</a>
]
</p>
</div>
<div class="py-2">
<p class="paper my-2 pl-2">
<span class="papertitle">Clausal Congruence Closure</span><br>
<span class="paper-authors">Armin Biere, Katalin Fazekas, Mathias Fleury and Nils Froleyks</span><br>
<span class="conf">
International Conference on Theory and Applications of Satisfiability Testing
(<a class="confshort" href="http://satisfiability.org/SAT24/">SAT'24</a>)
</span><br>
[ <a class="tag" href="papers/BiereFazekasFleuryFroleyks-SAT24.pdf" target="_blank">preprint</a>
<span class="tagsep">|</span>
<a class="tag" href="bibs/sat24.bib" target="_blank">bib</a>
]
</p>
</div>
<div class="py-2">
<p class="paper my-2 pl-2">
<span class="papertitle">Incremental Proofs for Bounded Model Checking</span><br>
<span class="paper-authors">Katalin Fazekas, Florian Pollitt, Mathias Fleury, Armin Biere</span><br>
<span class="conf">
Workshop on Methods and Description Languages for Modelling and Verification of Circuits and Systems
(<a class="confshort" href="https://eit.rptu.de/fgs/eis/mbmv24">MBMV'24</a>)
</span><br>
[ <a class="tag" href="papers/FazekasPollittFleuryBiere-MBMV24.pdf" target="_blank">preprint</a>
<span class="tagsep">|</span>
<a class="tag" href="bibs/mbmv24.bib" target="_blank">bib</a>
<span class="tagsep">|</span>
<a class="tag" href="https://github.com/arminbiere/idrup-check" target="_blank">source</a>
<span class="tagsep">|</span>
<a class="tag" href="talks/mbmv2024_talk.pdf" target="_blank">slides</a>
]
</p>
</div>
<div class="py-2">
<p class="paper my-2 pl-2">
<span class="papertitle">IPASIR-UP: User Propagators for CDCL</span><br>
<span class="paper-authors">Katalin Fazekas, Aina Niemetz, Mathias Preiner, Markus Kirchweger, Stefan Szeider, Armin Biere</span><br>
<span class="conf">
<a class="papertitle" href="http://satisfiability.org/SAT23/pages/awards.html">Highlighted paper</a> at the
International Conference on Theory and Applications of Satisfiability Testing
(<a class="confshort" href="http://satisfiability.org/SAT23/">SAT'23</a>)
</span><br>
[ <a class="tag" href="papers/FazekasNiemetzPreinerKirchwegerSzeiderBiere-SAT23.pdf" target="_blank">preprint</a>
<span class="tagsep">|</span>
<a class="tag" href="bibs/sat23.bib" target="_blank">bib</a>
<span class="tagsep">|</span>
<a class="tag" href="https://github.com/arminbiere/cadical/" target="_blank">source</a>
<span class="tagsep">|</span>
<a class="tag" href="https://zenodo.org/record/8003683" target="_blank">experiments</a>
<span class="tagsep">|</span>
<a class="tag" href="talks/sat2023_talk.pdf" target="_blank">slides</a>
]
</p>
</div>
<div class="py-2">
<p class="paper my-2 pl-2">
<span class="papertitle">On Incremental Pre-processing for SMT</span><br>
<span class="paper-authors">Nikolaj Bjørner, Katalin Fazekas</span><br>
<span class="conf">
International Conference on Automated Deduction
(<a class="confshort" href="https://easyconferences.eu/cade2023/">CADE'23</a>)
</span><br>
[ <a class="tag" href="papers/BjornerFazekas-CADE23.pdf" target="_blank">preprint</a>
<span class="tagsep">|</span>
<a class="tag" href="bibs/cade23.bib" target="_blank">bib</a>
]
</p>
</div>
<div class="py-2">
<p class="paper my-2 pl-2">
<span class="papertitle">SAT-Based Quantified Symmetric Minimization of the Reachable States of Distributed Protocols</span><br>
<span class="paper-authors">Katalin Fazekas, Aman Goel, Karem A. Sakallah</span><br>
<span class="conf">
Formal Methods in Computer Aided Design
(<a class="confshort" href="https://fmcad.org/FMCAD23/">FMCAD'23</a>)
</span><br>
[ <a class="tag" href="papers/FazekasGoelSakallah-FMCAD23.pdf" target="_blank">preprint</a>
<span class="tagsep">|</span>
<a class="tag" href="bibs/fmcad23.bib" target="_blank">bib</a>
<span class="tagsep">|</span>
<a class="tag" href="https://github.com/kfazekas/QSM" target="_blank">source</a>
]
</p>
</div>
<div class="py-2">
<p class="paper my-2 pl-2">
<span class="papertitle">Model Checking AUTOSAR Components with CBMC</span><br>
<span class="paper-authors">Timothee Durand, Katalin Fazekas, Georg Weissenbacher, Jakob Zwirchmayr</span><br>
<span class="conf">
Formal Methods in Computer Aided Design
(<a class="confshort" href="https://fmcad.org/FMCAD21/">FMCAD'21</a>)
</span><br>
[ <a class="tag" href="papers/DurandFazekasWeissenbacherZwirchmayr-FMCAD21.pdf" target="_blank">preprint</a>
<span class="tagsep">|</span>
<a class="tag" href="bibs/fmcad21.bib" target="_blank">bib</a>
]
</p>
</div>
<div class="py-2">
<p class="paper my-2 pl-2">
<span class="papertitle">Duplex Encoding of Staircase At-Most-One Constraints for the Antibandwidth Problem</span><br>
<span class="paper-authors">Katalin Fazekas, Markus Sinnl, Armin Biere, Sophie Parragh</span><br>
<span class="conf">
International Conference on the Integration of Constraint Programming, Artificial Intelligence, and Operations Research
(<a class="confshort" href="https://cpaior2020.dbai.tuwien.ac.at/">CPAIOR'20</a>)
</span><br>
[ <a class="tag" href="papers/FazekasSinnlBiereParragh-CPAIOR20.pdf" target="_blank">preprint</a>
<span class="tagsep">|</span>
<a class="tag" href="bibs/cpaior20.bib" target="_blank">bib</a>
<span class="tagsep">|</span>
<a class="tag" href="http://fmv.jku.at/duplex" target="_blank">experiments</a>
<span class="tagsep">|</span>
<a class="tag" href="talks/cpaior2020_talk.pdf" target="_blank">slides</a>
<span class="tagsep">|</span>
<a class="tag" href="https://youtu.be/ek2EQpYy2Cs" target="_blank">talk</a> ]
</p>
</div>
<div class="py-2">
<p class="paper my-2 pl-2">
<span class="papertitle">Incremental Inprocessing SAT Solving</span><br>
<span class="paper-authors">Katalin Fazekas, Armin Biere, Christoph Scholl</span><br>
<span class="conf">
International Conference on Theory and Applications of Satisfiability Testing
(<a class="confshort" href="http://sat2019.tecnico.ulisboa.pt/">SAT'19</a>)
</span><br>
[ <a class="tag" href="papers/FazekasBiereScholl-SAT19.pdf" target="_blank">preprint</a>
<span class="tagsep">|</span>
<a class="tag" href="bibs/sat19.bib" target="_blank">bib</a>
<span class="tagsep">|</span>
<a class="tag" href="http://fmv.jku.at/incrinpr" target="_blank">experiments</a>
<span class="tagsep">|</span>
<a class="tag" href="talks/sat2019_talk.pdf" target="_blank">slides</a> ]
</p>
</div>
<div class="py-2">
<p class="paper my-2 pl-2">
<span class="papertitle">Implicit Hitting Set Algorithms for Maximum Satisfiability Modulo Theories</span><br>
<span class="paper-authors">Katalin Fazekas, Fahiem Bacchus, Armin Biere</span><br>
<span class="conf">
International Joint Conference on Automated Reasoning
(<a class="confshort" href="http://ijcar2018.org/">IJCAR'18</a>)
</span><br>
[ <a class="tag" href="papers/FazekasBacchusBiere-IJCAR18.pdf" target="_blank">preprint</a>
<span class="tagsep">|</span>
<a class="tag" href="bibs/ijcar18.bib" target="_blank">bib</a>
<span class="tagsep">|</span>
<a class="tag" href="http://fmv.jku.at/maxsmt/" target="_blank">experiments</a>
<span class="tagsep">|</span>
<a class="tag" href="talks/ijcar2018_talk.pdf" target="_blank">slides</a> ]
</p>
</div>
<div class="py-2">
<p class="paper my-2 pl-2">
<span class="papertitle">Skolem Function Continuation for Quantified Boolean Formulas</span><br>
<span class="paper-authors">Katalin Fazekas, Marijn J. H. Heule, Martina Seidl, Armin Biere</span><br>
<span class="conf">
International Conference on Tests and Proofs
(<a class="confshort" href="https://www.informatik.uni-marburg.de/staf2017/">TAP'17</a>)
</span><br>
[ <a class="tag" href="papers/FazekasHeuleSeidlBiere-TAP17.pdf" target="_blank">preprint</a>
<span class="tagsep">|</span>
<a class="tag" href="bibs/tap17.bib" target="_blank">bib</a>
<span class="tagsep">|</span>
<a class="tag" href="talks/tap2017_talk.pdf" target="_blank">slides</a> ]
</p>
</div>
<div class="py-2">
<p class="paper my-2 pl-2">
<span class="papertitle">A Duality-Aware Calculus for Quantified Boolean Formulas</span><br>
<span class="paper-authors">Katalin Fazekas, Martina Seidl, Armin Biere</span><br>
<span class="conf">
International Symposium on Symbolic and Numeric Algorithms for Scientific Computing
(<a class="confshort" href="https://synasc.ro/">SYNASC'16</a>)
</span><br>
[ <a class="tag" href="papers/FazekasSeidlBiere-SYNASC16.pdf" target="_blank">preprint</a>
<span class="tagsep">|</span>
<a class="tag" href="bibs/synasc16.bib" target="_blank">bib</a>
<span class="tagsep">|</span>
<a class="tag" href="talks/synasc2016_talk.pdf" target="_blank">slides</a> ]
</p>
</div>
<p class="header pt-5" id="technical_reports">Technical Reports</p>
<div class="py-2">
<p class="paper my-2 pl-2">
<span class="papertitle">Duplex Encoding of Antibandwidth Feasibility Formulas Submitted to the SAT Competition 2020</span><br>
<span class="paper-authors">Katalin Fazekas, Markus Sinnl, Armin Biere, Sophie Parragh</span><br>
<span class="conf">
SAT Competition 2020 - Solver and Benchmark Descriptions
(<a class="confshort" href="https://satcompetition.github.io/2020/">SAT-COMP'20</a>)
</span><br>
[ <a class="tag" href="papers/FazekasSinnlBiereParragh-SAT-Competition-2020-benchmarks.pdf" target="_blank">pdf</a>
<span class="tagsep">|</span>
<a class="tag" href="bibs/satcomp20-benchmark.bib" target="_blank">bib</a> ]
</p>
</div>
<div class="py-2">
<p class="paper my-2 pl-2">
<span class="papertitle">CaDiCaL, Kissat, Paracooba, Plingeling and Treengeling Entering the SAT Competition 2020</span><br>
<span class="paper-authors">Armin Biere, Katalin Fazekas, Mathias Fleury, Maximillian Heisinger</span><br>
<span class="conf">
SAT Competition 2020 - Solver and Benchmark Descriptions
(<a class="confshort" href="https://satcompetition.github.io/2020/">SAT-COMP'20</a>)
</span><br>
[ <a class="tag" href="papers/BiereFazekasFleuryHeisinger-SAT-Competition-2020-solvers.pdf" target="_blank">pdf</a>
<span class="tagsep">|</span>
<a class="tag" href="bibs/satcomp20-solvers.bib" target="_blank">bib</a> ]
</p>
</div>
<p class="header pt-5">Workshop talks</p>
<div class="py-2">
<p class="paper my-2 pl-2">
<span class="papertitle">Ranking Robustness under Sub-Sampling for the SAT Competition 2018</span><br>
<span class="paper-authors">Katalin Fazekas, Daniela Kaufmann, Armin Biere</span><br>
<span class="conf">
Pragmatics of SAT
(<a class="confshort" href="http://www.pragmaticsofsat.org/2018/">POS'19</a>)
</span><br>
[ <a class="tag" href="talks/pos2019_talk.pdf" target="_blank">slides</a> ]
</p>
</div>
<p class="header pt-5" id="theses">Theses</p>
<div class="py-2">
<p class="paper my-2 pl-2">
<span class="papertitle">On SAT-based Solution Methods for Computational Problems</span><br>
<span class="paper-authors">Katalin Fazekas</span><br>
<span class="conf">
Dissertation, Johannes Kepler University Linz
(<a class="confshort" href="https://www.jku.at/">JKU</a>)
</span><br>
[ <a class="tag" href="papers/Fazekas-PhD-Thesis-2020.pdf" target="_blank">pdf</a>
<span class="tagsep">|</span>
<a class="tag" href="bibs/dissertation.bib" target="_blank">bib</a> ]
</p>
</div>
<div class="py-2">
<p class="paper my-2 pl-2">
<span class="papertitle">EUF-Proofs for SMT4J</span><br>
<span class="paper-authors">Katalin Fazekas</span><br>
<span class="conf">
Master Thesis, Johannes Kepler University Linz
(<a class="confshort" href="https://www.jku.at/">JKU</a>)
</span><br>
[ <a class="tag" href="papers/Fazekas-MasterThesis-2015.pdf" target="_blank">pdf</a> ]
</p>
</div>
</div>
</div>
</div>
</body>
</html>