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arXiv 1506.04879cs.LO
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基于不变量自动生成的时间系统组合验证

Compositional Verification for Timed Systems Based on Automatic Invariant Generation

Lacramioara Astefanoaei, Souha Ben Rayana, Saddek Bensalem, Marius Bozga, Jacques Combaz

摘要:

我们提出了一种组合验证的方法,以解决状态空间爆炸问题固有的模型检查定时系统的大量组件。主要的挑战是获得相关的全球时间约束的组件单独的时间。为此,我们利用辅助时钟自动生成新的不变量,捕获组件之间的同步引起的约束。该方法已在RTD-STIM工具中实现,并在多个基准测试中成功实验。

英文摘要:

We propose a method for compositional verification to address the state space explosion problem inherent to model-checking timed systems with a large number of components. The main challenge is to obtain pertinent global timing constraints from the timings in the components alone. To this end, we make use of auxiliary clocks to automatically generate new invariants which capture the constraints induced by the synchronisations between components. The method has been implemented in the RTD-Finder tool and successfully experimented on several benchmarks.

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