Reactive Systems Group

We develop algorithms and tools for the synthesis and verification of reactive systems.

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group photo of the Reactive System Group in front of a lake

Current Lectures

Summer 2023: Seminar Hyperproperties

Winter 2022/23: Advanced Lecture Automata, Games and Verification

Summer 2022: Proseminar From Program Verification to Synthesis

Summer 2022: Seminar Neural-Symbolic Computing

Winter 2021: Core Lecture Verification

Summer 2021: Seminar Monitoring of Cyber-Physical Systems

Summer 2021: Proseminar Software Reliability

Winter 2020/21: Grundvorlesung Programmierung 1

Summer 2020: Seminar Neural-Symbolic Computing

Winter 2019/20: Advanced Lecture Reactive Synthesis

Winter 2019/20: Core Lecture Verification

Recent Publications

ACM SIGLOG News: Logics and Algorithms for Hyperproperties
CAV 2023: nl2spec: Interactively Translating Unstructured Natural Language to Temporal Logics with Large Language Models
CSF 2023: Smart Contract Synthesis Modulo Hyperproperties
LPAR 2023: Counterfactuals Modulo Temporal Logics
ICLR 2023: Iterative Circuit Repair Against Formal Specifications
FSTTCS 2022: Synthesizing Dominant Strategies for Liveness
LICS 2022: Deciding Hyperproperties Combined with Functional Specifications
CSF 2022: Prophecy Variables for Hyperproperty Verification
ISSE 2022: Specification decomposition for reactive synthesis
RV 2022: Real-time Visualization of Stream-based Monitoring Data
ATVA 2022: Temporal Causality in Reactive Systems
CAV 2022: Software Verification of Hyperproperties Beyond k-Safety
CAV 2022: Explaining Hyperproperty Violations
CAV 2022: Information Flow Guided Synthesis
PLDI 2022: Can reactive synthesis and syntax-guided synthesis be friends?
HSCC 2022: BOCoSy: Small but Powerful Symbolic Output-Feedback Control.
ISSE 2022: Compositional synthesis of modular systems.
ISSE 2022: Live synthesis.
FoSSaCS 2022: Temporal Stream Logic modulo Theories.
CSL 2022: Global Winning Conditions in Synthesis of Distributed Systems with Causal Memory.
FSTTCS 2021: Linear-time Temporal Logic with Team Semantics: Expressivity and Complexity.
ATVA 2021: Runtime Enforcement of Hyperproperties.
ATVA 2021: Compositional Synthesis of Modular Systems.
ATVA 2021: Live Synthesis.
VIS 2021: Visual Analysis of Hyperproperties for Understanding Model Checking Results.
CAV 2021: Causality-Based Game Solving.
NFM 2021: Specification Decomposition for Reactive Synthesis.
ICLR 2021: Teaching Temporal Logics to Neural Networks.
TACAS 2021: RTLola on Board: Testing Real Driving Emissions on your Phone.
TACAS 2021: A Web Interface for Petri Nets with Transits and Petri Games.
RV 2020: Verified Rust Monitors for Lola Specifications.
RV 2020: Automatic Optimizations for Stream-based Monitoring Languages.
RV 2020: Monitoring Cyber-Physical Systems: From Design to Integration..
ATVA 2020: Probabilistic Hyperproperties of Markov Decision Processes.
ATVA 2020: Explainable Reactive Synthesis.
ATVA 2020: Model Checking Branching Properties on Petri Nets with Transits.
ATVA 2020: Dependency-based Compositional Synthesis.
KR 2020: The Hierarchy of Hyperlogics: A Knowledge Reasoning Perspective.
CAV 2020: Realizing Omega-regular Hyperproperties.
CAV 2020: AdamMC: A Model Checker for Petri Nets with Transits against Flow-LTL.
CAV 2020: RTLola Cleared for Take-Off: Monitoring Autonomous Aircraft.
HSCC 2020: From LTL to rLTL Monitoring: Improved Monitorability through Robust Semantics.
ATVA 2019: Program Repair for Hyperproperties.
ATVA 2019: Efficient Trace Encodings of Bounded Synthesis for Asynchronous Distributed Systems.
ATVA 2019: Model Checking Data Flows in Concurrent Network Updates.
ATVA 2019: Approximate Automata for Omega-regular Languages.
EMSOFT 2019: FPGA Stream-Monitoring of Real-time Properties.
CONCUR 2019: Translating Asynchronous Games for Distributed Synthesis.
CAV 2019: Verifying Hyperliveness.
CAV 2019: Temporal Stream Logic: Synthesis beyond the Bools.
CAV 2019: StreamLAB: Stream-based Monitoring of Cyber-physical Systems.
CAV 2019: Synthesizing Approximate Implementations for Unrealizable Specifications.
SAT 2019: Clausal Abstraction for DQBF.
FMSD: Monitoring Hyperproperties.
CSF 2019: Canonical Representations of k-Safety Hyperproperties.
LICS 2019: The Hierarchy of Hyperlogics.
TACAS 2019: Constraint-based Monitoring of Hyperproperties.
ATVA 2018: Bounded Synthesis of Reactive Programs.
ATVA 2018: MGHyper: Checking Satisfiability of HyperLTL formulas beyond the ∃*∀* Fragment.
CSL 2018: Synthesizing Optimally Resilient Controllers.
CSL 2018: Parity Games with Weights.
MFCS 2018: Parity to Safety in Polynomial Time for Pushdown and Collapsible Pushdown Systems.
MFCS 2018: Team Semantics for the Specification and Verification of Hyperproperties.
CAV 2018: Model Checking Quantitative Hyperproperties.
CAV 2018: Synthesizing Reactive Systems from Hyperproperties.
CSF 2018: The Complexity of Monitoring Hyperproperties.
Acta Informatica: The Complexity of Counting Models of Linear-time Temporal Logic.
Acta Informatica: Parameterized Linear Temporal Logics Meet Costs: Still not Costlier than LTL.
TACAS 2018: RVHyper: A Runtime Verification Tool for Temporal Hyperproperties.
CCS 2017: Verifying Security Policies in Multi-agent Workflows with Loops.
IOS Press: Reactive Synthesis: Towards Output-Sensitive Algorithms.
FSTTCS 2017: Symmetric Synthesis.
FSTTCS 2017: Synthesis in Distributed Environments.
CREST 2017: Causality-based Model Checking.
Bulletin of EATCS: Temporal Hyperproperties.
ATVA 2017: The Density of Linear-time Properties.
LMCS: Easy to Win, Hard to Master: Optimal Strategies in Parity Games with Costs.
GandALF 2017: Finite-state Strategies in Delay Games.
RV 2017: Stream Runtime Monitoring on UAS.
RV 2017: Monitoring Hyperproperties.
CAV 2017: BoSy: An Experimentation Framework for Bounded Synthesis.
CAV 2017: EAHyper: Satisfiability, Implication, and Equivalence Checking of Hyperproperties.
CAV 2017: On Expansion and Resolution in CEGAR Based QBF Solving.
LICS 2017: Games with Costs and Delays.
ESOP 2017: Is your software on dope? ⋆ Formal analysis of surreptitiously “enhanced” programs.
Information and Computation: Parametric Linear Dynamic Logic.
TACAS 2017: Encodings of Bounded Synthesis.
AIAA Scitech 2017: Towards Intelligent System Health Management using Runtime Monitoring.
FOSSACS 2017: Bounding Average-energy Games.
STACS 2017: The First-order Logic of Hyperproperties.
RAIRO-ITA: Delay Games with WMSO+U Winning Conditions.
FSTTCS 2016: Visibly Linear Dynamic Logic.
FSTTCS 2016: Prompt Delay.
LMCS: How Much Lookahead is Needed to Win Infinite Games?
RV 2016: A Stream-based Specification Language for Network Monitoring.
ATVA 2016: Synthesizing Skeletons for Reactive Systems.
ATVA 2016: Specifying and Verifying Secrecy in Workflows with Arbitrarily Many Agents.
GandALF 2016: Approximating Optimal Bounds in Prompt-LTL Realizability in Doubly-exponential Time.
GandALF 2016: Distributed PROMPT-LTL Synthesis
CSL 2016: Easy to Win, Hard to Master: Optimal Strategies in Parity Games with Costs.
CONCUR 2016: Deciding Hyperproperties.
CAV 2016: Bounded Cycle Synthesis.
CAV 2016: Synthesis of Self-Stabilizing and Byzantine-Resilient Distributed Systems.
SAT 2016: Non-prenex QBF Solving Using Abstraction.
ACM SIGACT News: Decidability in Parameterized Verification.
RAIRO – ITA: Optimal Strategy Synthesis for Request-Response Games.
VMCAI 2016: Tight Cutoffs for Guarded Protocols with Fairness.
FMCAD 2015: CAQE: A Certifying QBF Solver.
Synthesis Lectures in Distributed Computing Theory: Decidability of Parameterized Verification.
GandALF 2015: Parameterized Linear Temporal Logics Meet Costs: Still not Costlier than LTL.
Correct System Design 2015: Bounded Synthesis for Petri Games.

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