参数化系统二维抽象框架  

A Generic Framework of Two-dimension Abstraction for Parameterized Systems

作　　者：屈婉霞[1] 庞征斌[1] 郭阳[1] 李暾[1] 杨晓东[1] 

机构地区：[1]国防科技大学计算机学院,湖南长沙410073

出　　处：《国防科技大学学报》2010年第1期95-100,共6页Journal of National University of Defense Technology

基　　金：国家自然科学基金资助项目(60573173;60773025);新世纪优秀人才支持计划资助项目

摘　　要：针对参数化系统状态空间爆炸问题提出了一个通用的参数化系统二维抽象框架TDA。对所有进程单独进行抽象,利用参数化系统的设计思想,隐藏系统参数构建全系统的抽象模型,最大限度地剔除了原始系统中的冗余信息。建立的具有真并发语义的参数化系统的形式化模型,更适合描述一般意义上的并发系统,较好地解决了验证大规模同构和异构系统的空间激增问题。理论推导和实例均证实了TDA的正确性和合理性。To address the state explosion problem in model checking parameterized systems, this paper proposes a generic framework of two-dimension abstraction （TDA）, in which the size of the state transition graph for individual process is reduced independently at first, and the whole system composed of reduced processes is then abstracted based on the design method of pamIneterized systems, thus avoiding the construction of the unreduced model that might be too big to fit into memory. Formal model with true concurrency semantics for parametefized systems, more suitable for describing general concurrency systems, is introduced, which effectively solves the problem of verifying both homogeneous and heterogeneous systems. Results from the theoretical reasoning and the example given demonstrate that TDA is correct and feasible.

关 键 词：参数化系统 模型检验 抽象 多处理机系统 CACHE一致性协议 

分 类 号：TP391.72[自动化与计算机技术—计算机应用技术]