Evrostos: the rLTL verifier

Evrostos: the rLTL verifier
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Evrostos:rLTL 验证器

DOI:
10.1145/3302504.3311812
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发表时间:
2019
期刊:
HSCC '19: Proceedings of the 22nd ACM International Conference on Hybrid Systems: Computation and Control
影响因子:
--
通讯作者:
Tabuada, Paulo
Tabuada, Paulo
中科院分区:
--
文献类型:
--
作者:
Anevlavis, Tzanis;Neider, Daniel;Phillipe, Matthew;Tabuada, Paulo

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健壮性线性时态逻辑(RLTL)是为了将健壮性的概念融入到线性时间时态逻辑(LTL)规范中而设计的。从技术上讲,健壮性是通过5个不同的真值在逻辑rLTL中形式化的,这导致了相关模型检测问题的时间复杂性的增加。一般而言,rLTL公式的模型检验依赖于构造一个大小为5|φ|的广义Büchi自动机,其中|φ|表示rLTL公式φ的长度。最近的研究表明,当要进行模型检验的公式来自rLTL的片段时,该自动机的大小可以减少到3|φ|(甚至更小)。在本文中,我们介绍了这段代码中的第一个模型检查公式工具Evrostos。我们还基于文献中报道的模型和LTL公式进行了几项实证研究,证实了对上述片段的rLTL模型检查会产生时间开销,从而使rLTL的验证切实可行。
Robust Linear Temporal Logic (rLTL) was crafted to incorporate the notion of robustness into Linear-time Temporal Logic (LTL) specifications. Technically, robustness was formalized in the logic rLTL via 5 different truth values and it led to an increase in the time complexity of the associated model checking problem. In general, model checking an rLTL formula relies on constructing a generalized Büchi automaton of size 5 | φ | where | φ | denotes the length of an rLTL formula φ. It was recently shown that the size of this automaton can be reduced to 3 | φ | (and even smaller) when the formulas to be model checked come from a fragment of rLTL. In this paper, we introduceEvrostos,the first tool for model checking formulas in this fragment. We also present several empirical studies, based on models and LTL formulas reported in the literature, confirming that rLTL model checking for the aforementioned fragment incurs in a time overhead that makes the verification of rLTL practical.
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