Tobias Winkler

tobias.winkler at
Room 4231
Ahornstraße 55
D-52074 Aachen

I am a PhD student in the Software Modeling and Verification Group headed by Professor J.-P. Katoen. Moreover, I am an associated doctoral researcher in the research training group UnRAVel.


My research is situated in the formal automatic analysis of probabilistic systems. In particular, my current interests include:

  • Probabilistic Model Checking
  • Parametric Markov Models
  • Stochastic Games
  • Probabilistic Programming

I supervise our UnRAVeL student assistant Johannes Lehmann.

Thesis projects

If you are interested in writing a Bachelor/Master’s thesis in any of the areas mentioned above, don’t hesitate to contact me. You can also check our list of open topics.

Current thesis projects

I am currently supervising the following projects:

  • Automata-based Model Checking of Recursive Systems – Christina Gehnen, Bachelor’s thesis.


I’m currently involved in the following teaching activities:

In previous semesters, I was involved in the following teaching actitvities:

arXiv:2007.06327 [bibtex] [issue] Benjamin Lucien Kaminski, Joost-Pieter Katoen, Joshua Moerman, Kevin Stefan Batz, Lutz Klinkenberg, Tobias Winkler. Generating Functions for Probabilistic Programs, 2020.
DOI [bibtex] [issue] Joost-Pieter Katoen, Krishnendu Chatterjee, Maximilian Weininger, Tobias Winkler. Stochastic Games with Lexicographic Reachability-Safety Objectives, International Conference on Computer Aided Verification (CAV20), Volume 12225 of LNCS, 398-420, Springer, 2020.
DOI fulltext PDF [bibtex] [issue] Guillermo A. Pérez, Joost-Pieter Katoen, Sebastian Junges, Tobias Winkler. On the Complexity of Reachability in Parametric Markov Decision Processes, CONCUR 2019, Volume 140 of Leibniz international proceedings in informatics : LIPIcs, Schloss Dagstuhl - Leibniz-Zentrum für Informatik GmbH, Dagstuhl Publishing, August, 2019.