1. Verification and Parameter Synthesis for Real-Time Programs using Refinement of Trace Abstraction*.
- Author
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Cassez, Franck, Jensen, Peter Gjøl, Guldstrand Larsen, Kim, Hague, Matthew, and Potapov, Igor
- Subjects
- *
MACHINE theory , *HYBRID systems , *PETRI nets , *ALGORITHMS - Abstract
We address the safety verification and synthesis problems for real-time systems. We introduce real-time programs that are made of instructions that can perform assignments to discrete and real-valued variables. They are general enough to capture interesting classes of timed systems such as timed automata, stopwatch automata, time(d) Petri nets and hybrid automata. We propose a semi-algorithm using refinement of trace abstractions to solve both the reachability verification problem and the parameter synthesis problem for real-time programs. All of the algorithms proposed have been implemented and we have conducted a series of experiments, comparing the performance of our new approach to state-of-the-art tools in classical reachability, robustness analysis and parameter synthesis for timed systems. We show that our new method provides solutions to problems which are unsolvable by the current state-of-the-art tools. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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