Deriving Parameter Conditions for Periodic Timed Automata Satisfying Real-Time Temporal Logic Formulas
Deriving Parameter Conditions for Periodic Timed Automata Satisfying Real-Time Temporal Logic Formulas
复制标题
推导满足实时时序逻辑公式的周期性定时自动机的参数条件
DOI:
10.1007/0-306-47003-9_10
复制
发表时间:
2001
影响因子:
1.5
通讯作者:
T. Higashino
中科院分区:
文献类型:
--
作者:
A. Nakata;T. Higashino
A symbolic model checking method for parametric periodic timed automata is proposed. The method derives symbolically the weakest condition for parameters such that the specified control state of a periodic timed automaton satisfies some temporal properties. Unlike several existing parametric symbolic model checking methods, the proposed method is ‘on-the-fly’ — it does not unnecessarily check all the states. Instead, it traverses some necessary part of the computation tree to derive the weakest condition. We show that if we constrain a timed automaton to be periodic, i.e. if we force a timed automaton to return to its initial state periodically at the specified constant time, we have only to traverse at most the first 3 periods in the infinite computation tree. In the proposed method, we can avoid a costly (and generally undecidable) fixpoint-calculation for dense-time-domain state sets, and derive the weakest condition for parameters of a timed automaton to satisfy given temporal properties written in a real-time temporal logic formula.