• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

计算机工程与科学

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LTL概率模型检验工具的实现与优化

林哲超,董威   

  1. (国防科学技术大学计算机学院,湖南 长沙 410073)
  • 收稿日期:2015-10-14 修回日期:2015-12-02 出版日期:2017-05-25 发布日期:2017-05-25

Implementation and optimization of 
LTL probabilistic model checker

LIN Zhe-chao,DONG Wei   

  1. (College of Computer,National University of Defense Technology,Changsha 410073,China)
  • Received:2015-10-14 Revised:2015-12-02 Online:2017-05-25 Published:2017-05-25

摘要:

概率模型检验建立在非概率模型检验技术的基础上,不仅能够对系统进行定性的验证,还能够定量判断系统满足相关性质的概率,具有广泛的适用性。LTL概率模型检验算法的复杂度较高,达到双重指数级别,现有的工具如PRISM与MRMC均不支持对LTL性质的验证。针对这个问题,通过对原有的LTL概率模型检验算法进行优化,实现了一个高效的LTL概率模型检验工具。通过对比实验验证了该工具的有效性。

关键词: LTL, 概率模型检验, 优化

Abstract:

Probabilistic model checking is one model checking technology, which cannot only verify the system qualitatively but also judge if the system satisfies quantitative properties. The complexity for LTL probabilistic model checking can be up to a double exponential level. Existing tools such as PRISM and MRMC do not support the validation of LTL properties. We optimize the LTL probabilistic model checking algorithm and implement an efficient LTL model checker. The proposed tool is evaluated via some comparative experiments.
 

Key words: LTL, probabilistic model checking, optimization