About

I am a fourth year computer science Ph.D. candidate at the Max Planck Institute for Software Systems (MPI-SWS) in Kaiserslautern, Germany. I am broadly interested in automatic testing, debugging, security, formal analysis and verification of complex software systems. The overarching goal of my Ph.D. research is to improve software correctness and reliability by making it easier and practical for developers of all skill levels to incorporate state of the art formal methods tools in their software development workflow.
I am advised by Dr. Maria Christakis and work in the "Practical Formal Methods" research group at MPI-SWS. I received my master's degree from the University of Freiburg, Germany, in 2018. I also worked in Amazon AWS's Automated Reasoning Group as an applied scientist intern on Amazon CodeGuru under the supervision of Nico Rosner and Martin Schäf in the summer of 2021.

Publications

• Metamorphic Testing of Datalog Engines [pdf] [doi] [video]
  Together with Maria Christakis and Valentin Wüstholz.
  In: Proceedings of ESEC/FSE 2021.


• Automatically Tailoring Abstract Interpretation to Custom Usage Scenarios [pdf] [doi] [video]
  Together with Benjamin Mariano, Maria Christakis, Jorge A. Navas and Valentin Wüstholz.
  In: Proceedings of CAV 2021.


• Detecting Critical Bugs in SMT Solvers Using Blackbox Mutational Fuzzing [doi] [github] [website]
  Together with Maria Christakis, Valentin Wüstholz and Fuyuan Zhang.
  In: Proceedings of ESEC/FSE 2020.

  Best presentation award [video]

• Semantic Fault Localization and Suspiciousness Ranking [doi] [poster] [slides]
  Together with Maria Christakis, Matthias Heizmann, Christian Schilling and Valentin Wüstholz.
  In: Proceedings of TACAS 2019.


• Static Error Trace Analysis Using Aberrant Trace Elements [pdf]
  Master Thesis, University of Freiburg, 2018.


• RoBO: A Flexible and Robust Bayesian Optimization Framework in Python [pdf] [bib]
  Together with Aaron Klein, Stefan Falkner and Frank Hutter.
  In: Bayesian Optimization Workshop, NIPS 2017.

Open Source Research Tools

QueryFuzz: Metamorphic Testing of Datalog Engines
[github] [paper] [video]

Tailor: Automatically Tailoring Abstract Interpretation
[github] [paper] [video]

STORM: SMT Testing Over Random Mutations
[github] [paper] [website] [video]

Fault localization component in Ultimate Automizer
[github] [paper] [website]

RoBO: A flexible framework for robust Bayesian optimization
[github] [paper] [website] [bib]

Other Projects

Ant Simulator
Ant colony simulation implementation from scratch in C++.
[github]

Professional Activities

• Artifact Evaluation Committee member for SAS'21.
• Artifact Evaluation Committee member for ISSTA'21.
• Invited to Dagstuhl seminar on Ensuring the Reliability and Robustness of Database Management Systems.

Teaching

• Teaching assistant for the seminar on Research Topics in Software Reliability (WS 2019/20)
  Department of Computer Science,
  Technische Universität Kaiserslautern, Germany.


• Teaching assistant for the course Program Analysis (WS 2018/19)
  Department of Computer Science,
  Technische Universität Kaiserslautern, Germany.