Automated Software Engineering
Design and Synthesis of Synchronization Skeletons Using Branching-Time Temporal Logic
Logic of Programs, Workshop
Systematic simulation using sensitivity analysis
HSCC'07 Proceedings of the 10th international conference on Hybrid systems: computation and control
Robust test generation and coverage for hybrid systems
HSCC'07 Proceedings of the 10th international conference on Hybrid systems: computation and control
On systematic simulation of open continuous systems
HSCC'03 Proceedings of the 6th international conference on Hybrid systems: computation and control
Parameter Synthesis for Hybrid Systems with an Application to Simulink Models
HSCC '09 Proceedings of the 12th International Conference on Hybrid Systems: Computation and Control
Trajectory Based Verification Using Local Finite-Time Invariance
HSCC '09 Proceedings of the 12th International Conference on Hybrid Systems: Computation and Control
Bounded and Unbounded Safety Verification Using Bisimulation Metrics
HSCC '09 Proceedings of the 12th International Conference on Hybrid Systems: Computation and Control
Finite abstractions for hybrid systems with stable continuous dynamics
Discrete Event Dynamic Systems
Falsification of temporal properties of hybrid systems using the cross-entropy method
Proceedings of the 15th ACM international conference on Hybrid Systems: Computation and Control
Verification of Safety and Liveness Properties of Metric Transition Systems
ACM Transactions on Embedded Computing Systems (TECS) - Special Section on CAPA'09, Special Section on WHS'09, and Special Section VCPSS' 09
Probabilistic Temporal Logic Falsification of Cyber-Physical Systems
ACM Transactions on Embedded Computing Systems (TECS) - Special Section on Probabilistic Embedded Computing
Systematic management of simulation state for multi-branch simulations in simulink
Proceedings of the Symposium on Theory of Modeling & Simulation - DEVS Integrative M&S Symposium
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This paper describes an approach for bounded-time verification of safety properties of supervisory control software interacting with a continuous-time plant. A combination of software Model Checking and numerical simulation is used to compute a conservative approximation of the reachable states. The technique verifies system properties in the presence of nondeterministic behavior in the software due to, for instance, interleaving of tasks. A notion of program equivalenceis used to characterize the behaviors of the controller, and the bisimulation functions of Girard and Pappas are employed to characterize the behaviors of the plant. The approach can conservatively merge traces that reach states that are in proximity to each other. The technique has been implemented for the case of affine plant dynamics, which allows efficient operations on ellipsoidal sets based on convex optimization involving linear matrix inequalities (LMIs). We present an illustrative example for a model of the position controller of an unmanned aerial vehicle (UAV).