BDD-based functional coverage analysis
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United States of America Patent
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Feb 18, 2014
Grant Date -
Apr 25, 2013
app pub date -
Jan 30, 2012
filing date -
Jun 19, 2011
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Abstract
Obtaining a functional coverage model of a System Under Test (SUT) defining all functional coverage tasks of the SUT, wherein the functional coverage model defining a test-space with respect to functional attributes; obtaining a set of covered functional coverage tasks; encoding a covered Binary Decision Diagram (BDD) to represent the set of covered functional coverage tasks within the test-space; and manipulating the covered BDD to identify one or more coverage holes, wherein a coverage hole defines a set of coverage tasks in the test-space, all having a same combination of values to a subset of the functional attributes, that are not covered by the set of covered functional coverage task.
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