This website is now outdated. Please visit my new website.
In February 2020, I defended my PhD Thesis titled ‘Parameter Synthesis in Markov Models’ with honours.
I was a PhD student at the Software Modeling and Verification Group between June 2015 and February 2020. From October 2017 until February 2020, I was affiliated with the Research Training Group UnRAVeL.
You can also find me on DBLP and Google Scholar.
Research interests
- Model checking of quantitative (parameterised) systems
- Policy synthesis for variants of partially observable MDPs
- Formal aspects of reliability engineering, in particular fault trees
- SMT-solving for real arithmetic
- Formal modelling of real-world systems
Tool support
Over the years, I’ve been involved in the development of the following tools to advance the state-of-the-art in computer aided verification:
- The SMT-solver SMT-RAT (2011 — 2015)
- The arithmetic library carl (2012 — 2015) and its python bindings pycarl (since 2016)
- Compass (2014)
- The Markov Chain Parameter Synthesis Framework PROPhESY (since 2014)
- The Probabilistic Model Checker Storm (since 2014) and its python bindings stormpy (since 2016)
B.Sc or M.Sc theses
I’m always looking forward to work with students. If you’re looking for a thesis in one of the areas above, do not hesitate to contact me! Some ideas are given in our list of open topics.
Previously, I supervised the following theses (chronological order):
- Tom Janson, Accelerated Model Repair using Heuristic Analysis of Subsystems (BSc)
- Tim Quatmann, Multi-Objective Model Checking for Markov Automata (MSc)
- Ronja Nocon, Pattern-based detection of Monotonicity in Dynamic Fault Trees (BSc) [together with Matthias Volk]
- Michael Deutschen, GSPN Semantics for Dynamic Fault Trees (MSc) [together with Matthias Volk]
- Dustin Jungen, Repairs in Dynamic Fault Trees (BSc) [together with Matthias Volk]
- Sebastian Kruse, Model Checking a Wireless Token-Passing Network (MSc)
- Sven Deserno, Model Checking Families of Markov Chains (MSc) [together with Benjamin Kaminski]
- Jip Spel, Monotonicity in Markov Chains (MSc)
Teaching
I was involved in teaching assistance for the following lectures:
- Datastructures and Algorithms (Summer 2018)
- Concurrency Theory (Winter 2017)
- Compiler Construction (Summer 2017)
- Introduction to Model Checking (Summer 2016)
- Modeling and Verification of Probabilistic Systems (Winter 2015)
Furthermore, I supervised students in the scope of the following seminars:
- Introduction to Program Analysis (Proseminar, Sumer 2019)
- Trends and Pearls of Model Checking (Seminar, Winter 2019)
- Formal Verification Meets Machine Learning (Seminar, Summer 2018)
- Programming Language Design and Implementation (Seminar, Winter 2017)
- Introduction to Program Analysis (Proseminar, Winter 2016)
- Probabilistic Programming (Seminar, Summer 2016)
- Algorithms and Data Structures (Proseminar, Winter 2015)
Reviewer
I have been PC Member for the Artefact Evaluation of ATVA.
I have been an external reviewer for the following venues:
ATVA, ADHS, CAV, CDC, FM, FORTE, Gandalf, ICALP, iFM, MMB, HVC, PSI, QEST, SafeComp,
and for the following journals:
FMSD, J.Systems and Software.
| 2021 | |
|---|---|
[bibtex]
[issue]
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, Hans Christian Hensel, Sebastian Junges, Joost-Pieter Katoen. Counterexample-guided inductive synthesis for probabilistic systems, Formal aspects of computing, 31 Seiten, Springer, 2021. |
| 2020 | |
[bibtex]
[issue]
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Sebastian Junges. Parameter synthesis in Markov models, PhD Thesis, RWTH Aachen University, 1 Online-Ressource (xv, 371 Seiten) : Illustrationen, 2020. |
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[bibtex]
[issue]
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Kevin Batz, Sebastian Junges, Benjamin Lucien Kaminski, Joost-Pieter Katoen, Christoph Matheja, Philipp Schröer. PrIC3: Property Directed Reachability for MDPs, 32nd International Conference on Computer Aided Verification (CAV 2020), Volume 12225 of LNCS, 512-538, Springer, 2020. |
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[bibtex]
[issue]
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Joost-Pieter Katoen, Martin Ritzert, Richard Wilke, Katrin M. Dannert, Peter Lindner, Dennis Fischer, Janosch Fuchs, Björn Frederik Tauer, Vipin Ravindran Vijayalakshmi, Laura Vargas Koch, Nadine Friesen, Andreas Gabriel Klinger, Marcel Tobias Hark, Benjamin Lucien Kaminski, Sebastian Junges, Jip Josephine Spel, Anton Pirogov, Stefan Schupp, Till Hofmann, Daxin Liu, Martin Comis, Tabea Claudia Krabs, Stephan Zieger, Rebecca Haehn, Matthias Volk, Norman Weik, Helene-Maria Bolke-Hermanns. UnRAVeL Research Training Group: Uncertainty and Randomness in Algorithms, Verification, and Logic, 85 Seiten, 2020. |
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[bibtex]
[issue]
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Arnd Hartmanns, Sebastian Junges, Joost-Pieter Katoen, Tim Quatmann. Multi-cost Bounded Tradeoff Analysis in MDP, Journal of automated reasoning 64 (7), pages 1483-1522, Springer, 2020. |
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[bibtex]
[issue]
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Murat Cubuktepe, Nils Jansen, Sebastian Junges, Joost-Pieter Katoen, . Scenario-Based Verification of Uncertain MDPs, 26th International Conference on Tools and Algorithms for the Construction and Analysis of Systems (TACAS), Volume 12078 of Theoretical Computer Science and General Issues, 287-305, Springer, 2020. |
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[bibtex]
[issue]
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, Christian Hensel, , Sebastian Junges, Joost-Pieter Katoen, . Parametric Markov chains: PCTL complexity and fraction-free Gaussian elimination, Information and computation 272, pages 104504, Elsevier, 2020. |
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Kevin Batz, Sebastian Junges, Benjamin Lucien Kaminski, Joost-Pieter Katoen, Christoph Matheja, Philipp Schröer. PrIC3: Property Directed Reachability for MDPs, 2020. https://arxiv.org/abs/2004.14835 |
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