IEEE Transactions on Software Engineering - Special issue on formal methods in software practice
Verification of time partitioning in the DEOS scheduler kernel
Proceedings of the 22nd international conference on Software engineering
Modeling the ASCB-D Synchronization Algorithm with SPIN: A Case Study
Proceedings of the 7th International SPIN Workshop on SPIN Model Checking and Software Verification
Formal Modeling and Analysis of Advanced Scheduling Features in an Avionics RTOS
EMSOFT '02 Proceedings of the Second International Conference on Embedded Software
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The growing complexity and the safety-critical requirements of the embedded software in avionics systems present many challenges to current test-based verification technology. The use of formal verification methods can increase design assurance by exploring a larger range of system behaviors and fault conditions than can feasibly be covered by testing or simulation. However, one of the most challenging tasks faced in any formal verification activity is the construction of an adequate model for the environment with which the analyzed system interacts. For real-time systems where the timing characteristics are critical to correct performance this task is even more difficult. In this paper we discuss how an event-triggered model of time (as found in discrete event simulations) can be used as the basis for the environment needed to verify real-time avionics software.