What is the purpose of "formal verification" (e.g., model checking or equivalence checking) in digital design, as opposed to simulation-based verification?
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The correct answer is A) Formal verification uses mathematical methods to prove or disprove properties about a design across all possible inputs and states, giving exhaustive coverage guarantees that simulation, which tests only specific scenarios, cannot provide
Correct Answer
Formal verification uses mathematical methods to prove or disprove properties about a design across all possible inputs and states, giving exhaustive coverage guarantees that simulation, which tests only specific scenarios, cannot provide
While simulation can only check the specific scenarios tested, formal techniques like equivalence checking (proving two representations of a design are functionally identical) or model checking (proving a property holds for all reachable states) can provide exhaustive correctness guarantees for the properties checked, though they can face scalability challenges on very large designs.