My main research interest is the production of verified software by a top-down refinement process. For this, I'm using the theorem prover Isabelle/HOL, for which I have developed the Isabelle Refinement Framework and the Isabelle Collection Framework. It has been used to verify model checkers, and the GRAT unsat verification tool.
I'm developing the Isabelle-LLVM tool, which can be used to refine algorithms down to efficient imperative code. Highlights are efficient verified (parallel) sorting algorithms, and the verified IsaSAT -Solver.
For a complete list of publications, see DBLP.
Courses academic year 2025/2026
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Courses academic year 2024/2025
Courses academic year 2023/2024
Address
University of Twente
Zilverling (building no. 11), room 3037
Hallenweg 19
7522 NH Enschede
Netherlands
University of Twente
Zilverling 3037
P.O. Box 217
7500 AE Enschede
Netherlands
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