Abstract
To combat the state-explosion problem in automatic verification, we present a method for scaling up the real-time verification tool Uppaal by complementing it with methods for abstraction and compositionality. We identify a notion of timed ready simulation which we show is a sound condition for preservation of safety properties between real- time systems, and in addition is a precongruence with respect to parallel composition. Thus, it supports both abstraction and compositionality. We furthermore present a method for automatically testing for the existence of a timed ready simulation between real-time systems using the Uppaal tool.
BRICS-Basic Research in Computer Science-is a basic research centre funded by the Danish government at Aarhus and Aalborg University
Model-checking is either EXPTIME- or PSPACE-complete depending on the expres- siveness of the logic considered.
unless we succeed in showing P=PSPACE
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Ejersbo Jensen, H., Guldstrand Larsen, K., Skou, A. (2000). Scaling up Uppaal. In: Joseph, M. (eds) Formal Techniques in Real-Time and Fault-Tolerant Systems. FTRTFT 2000. Lecture Notes in Computer Science, vol 1926. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45352-0_4
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