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The ISO 26262 automotive safety standard requires evaluation of safety goal violations due to random hardware faults to determine diagnostic coverages (DC) for calculating safety metrics. Injecting faults using simulation may be time-consuming, tedious, and may not activate the design in a way to propagate the faults for testing. With formal verification, however, faults are easily categorized by structural analysis providing a worst-case DC. Furthermore, faults are analyzed to verify propagation, safety goal violations, and fault detection, providing accurate and high confidence results. This article describes in detail how to run a better fault campaign using formal.
ISO-METRICS
The automotive functional safety standard, ISO 26262,
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