NDLI: Model checking of hierarchical state machines

Content Provider	ACM Digital Library
Author	Alur, Rajeev Yannakakis, Mihalis
Abstract	Model checking is emerging as a practical tool for detecting logical errors in early stages of system design. We investigate the model checking of hierarchical (nested) systems, i.e. finite state machines whose states themselves can be other machines. This nesting ability is common in various software design methodologies and is available in several commercial modeling tools. The straightforward way to analyze a hierarchical machine is to flatten it (thus, incurring an exponential blow up) and apply a model checking tool on the resulting ordinary FSM. We show that this flattening can be avoided. We develop algorithms for verifying linear time requirements whose complexity is polynomial in the size of the hierarchical machine. We address also the verification of branching time requirements and provide efficient algorithms and matching lower bounds.
Starting Page	175
Ending Page	188
Page Count	14
File Format	PDF
ISSN	01635948
DOI	10.1145/291252.288305
Journal	ACM SIGSOFT Software Engineering Notes (SOEN)
Volume Number	23
Issue Number	6
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1979-04-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article

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Model checking of hierarchical state machines