Patent ID: 8671373
Filing Date: 2014-03-11
Classification: G06F

Abstract:
1. A computer-implemented method for trace analysis, the method comprising: receiving a first signal trace for a circuit design that includes signal values satisfying a target event; generating a first trace signature describing a portion of the first signal trace that causes the target event to occur; determining a first signal constraint based on the first trace signature; generating a second signal trace for the circuit design that includes signal values satisfying the target event, the first signal trace being different than the second signal trace, wherein the second signal trace satisfies both the target event and the first signal constraint; generating a second trace signature describing a portion of the second signal trace that causes the target event to occur; determining one or more first differential signal events that differentiate the first trace signature from the second trace signature, the first differential signal events being events from the first signal trace that cause the target event to occur; and indexing the one or more first differential signal events into a datastore in association with the first signal trace.