Method and system for performing target enlargement in the presence of constraints
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United States of America Patent
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Jun 23, 2009
Grant Date -
Sep 4, 2008
app pub date -
Feb 22, 2008
filing date -
Sep 13, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method for performing verification is disclosed. The method includes receiving a design, including one or one or more targets, one or more constraints, one or more registers and one or more inputs. A first function of one of the one or more targets over the one or more registers and the one or more inputs is computed. A second function of one or more of the one or more constraints over the one or more registers and the one or more inputs is computed. The inputs of the first function and the second function are existentially quantified. A bounded analysis is performed to determine if the one of the one or more targets may be hit while adhering to the constraints. A preimage of the inputs of the first function and a preimage of the inputs of the second function is existentially quantified to create a synthesizable preimage. The synthesizable preimage is simplified and synthesized to create an enlarged target. Verification of the enlarged target is performed.
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