Tom van Dijk

I am an assistant professor at the Formal Methods and Tools group at the University of Twente. My research is connected to formal verification and synthesis, including the efficient solving of parity games, using binary decision diagrams in formal methods and SAT/SMT solving with multi-core parallelism. I like making and improving usable research tools.

My PhD thesis was on parallelizing decision diagram algorithms. I implemented the Sylvan multi-core decision diagram package, which supports binary decision diagrams and multi-way (list) decision diagrams with custom leaves (booleans, integers, rational functions, etc). The package is used in several applications, including the model checkers LTSmin, Storm and IscasMC, as well as the symbolic bisimulation minimisation tool SigrefMC. After my PhD, I worked as a Postdoc in the Formal Models and Verification group of Armin Biere, where I mostly studied parity games.

My Research Tools

Teaching

Projects

Students (BSc, MSc, etc) are welcome to study questions about parity games with me. I have a number of open questions available.

On proving properties using a theory prover (like Isabelle):

On using binary decision diagrams to solve parity games symbolically:

Related to parity games are questions like:

There are also open questions on other topics in my research:

Publications

2019 Tom van Dijk, A Parity Game Tale of Two Counters, GandALF 2019 pdf talk 2019 Tom van Dijk, Jeroen Meijer and Jaco van de Pol, Multi-core On-The-Fly Saturation, TACAS 2019 doi pdf talk 2019 Tom van Dijk and Bob Rubbens, Simple Fixpoint Iteration To Solve Parity Games, GandALF 2019 pdf talk 2018 Tom van Dijk, A Parity Game Tale of Two Counters, arXiv arxiv pdf 2018 Tom van Dijk, Attracting Tangles to Solve Parity Games, CAV 2018 doi pdf talk 2018 Tom van Dijk and Jaco van de Pol, Multi-core Decision Diagrams, Handbook of Parallel Constraint Reasoning doi pdf 2018 Tom van Dijk and Jaco van de Pol, Multi-core symbolic bisimulation minimisation, STTT doi pdf 2018 Tom van Dijk, Oink: An Implementation and Evaluation of Modern Parity Game Solvers, TACAS 2018 doi pdf talk 2018 Tom van Dijk, Rüdiger Ehlers and Armin Biere, Revisiting Decision Diagrams for SAT, arXiv arxiv pdf 2017 Wytse Oortwijn, Tom van Dijk and Jaco van de Pol, Distributed binary decision diagrams for symbolic reachability, SPIN 2017 (Best paper) doi pdf 2017 Armin Biere, Tom van Dijk and Keijo Heljanko, Hardware model checking competition 2017, FMCAD 2017 doi pdf 2017 Tom van Dijk and Jaco van de Pol, Sylvan: multi-core framework for decision diagrams, STTT doi pdf 2017 Tom van Dijk, Robert Wille and Robert Meolic, Tagged BDDs: Combining reduction rules from different decision diagram types, FMCAD 2017 doi pdf talk 2016 Tom van Dijk and Jaco van de Pol, Multi-core symbolic bisimulation minimisation, TACAS 2016 doi pdf talk 2016 Tom van Dijk, Sylvan: Multi-core Decision Diagrams, PhD Thesis doi pdf 2015 Tom van Dijk, Ernst Moritz Hahn, David N. Jansen, Yong Li, Thomas Neele, Mariëlle Stoelinga, Andrea Turrini and Lijun Zhang, A Comparative Study of BDD Packages for Probabilistic Symbolic Model Checking, SETTA 2015 doi pdf 2015 Wytse Oortwijn, Tom van Dijk and Jaco van de Pol, A Distributed Hash Table for Shared Memory, PPAM 2015 doi pdf 2015 Gijs Kant, Alfons Laarman, Jeroen Meijer, Jaco van de Pol, Stefan Blom and Tom van Dijk, LTSmin: High-Performance Language-Independent Model Checking, TACAS 2015 doi pdf 2015 Tom van Dijk and Jaco van de Pol, Sylvan: Multi-Core Decision Diagrams, TACAS 2015 doi pdf talk 2014 Tom van Dijk and Jaco van de Pol, Lace: Non-blocking Split Deque for Work-Stealing, MuCoCOS 2014 doi pdf talk 2012 Tom van Dijk, Alfons Laarman and Jaco van de Pol, Multi-core and/or Symbolic Model Checking, AVoCS 2012 doi pdf 2012 Tom van Dijk, Alfons Laarman and Jaco van de Pol, Multi-Core BDD Operations for Symbolic Reachability, PDMC 2012 doi pdf

Theses

Academic Service

Contact

Formal Methods and Tools
Zilverling 3122
University of Twente
E-mail: t dot vandijk at utwente dot nl.