An assume-guarantee rule for checking simulation
ACM Transactions on Programming Languages and Systems (TOPLAS)
Modeling methodology for integrated simulation of embedded systems
ACM Transactions on Modeling and Computer Simulation (TOMACS)
Predicate abstraction for reachability analysis of hybrid systems
ACM Transactions on Embedded Computing Systems (TECS)
Composing heterogeneous reactive systems
ACM Transactions on Embedded Computing Systems (TECS)
PHAVer: algorithmic verification of hybrid systems past HyTech
International Journal on Software Tools for Technology Transfer (STTT)
Accurate hybridization of nonlinear systems
Proceedings of the 13th ACM international conference on Hybrid systems: computation and control
Formal verification of phase-locked loops using reachability analysis and continuization
Proceedings of the International Conference on Computer-Aided Design
Heterogeneous verification of cyber-physical systems using behavior relations
Proceedings of the 15th ACM international conference on Hybrid Systems: Computation and Control
A framework for comparing models of computation
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
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In model-based development, abstraction provides insight and tractability. Different formalisms are often used at different levels of abstraction to represent the variety of concerns that need to be addressed when designing complex cyber-physical systems. In this paper, we consider the problem of establishing abstraction across heterogeneous formalisms in a compositional manner. We use the framework of behavioral semantics to elucidate the general conditions that must be satisfied to assure that the composition of abstractions for individual components is an abstraction for the composition of the components. The theoretical concepts are illustrated using an example of a cooperative intersection collision avoidance system (CICAS).