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Formal verification is a systematic process that uses mathematical reasoning to verify that design intent (spec) is preserved in implementation (RTL). Jasper is the industry leader in formal verification. Jasper's formal solution algorithmically and exhaustively explores all possible input values over time. The overall verification can be started early in the design cycle while the RTL is being developed and can help in finding critical corner-case bugs which may be difficult to catch with simulation. Jasper's patented Visualize technology helps in visualizing the design with waveform views and can significantly accelerate design and debug without the need for a testbench or input stimulus.
Check out the following article on "What is Formal Verification" by Jasper...
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Semi-formal verification approach is not fully exhaustive and involves leveraging simulation in addition to the formal algorithms due to limitations with certain formal tools (mainly capacity to handle large designs). A fully formal verification solution such as Jasper's is 100% exhaustive with high capacity and does NOT require leveraging simulation to search deep into the search space.
please elaborate on the kind of design and logic you were trying to use formal on...and was it a semi-formal or formal tool you were using...what were the kind of issues you encountered? More and more verification is now done with formal, especially to catch corner-case bugs which are tough to find with traditional verification methods....you can refer to some of these case studies and articles for specific applications and use of formal....
Hi, am actually am not working on formal verification. Am a student pursuing my M.tech. So i wanted an over view of formal and semi-formal verification.
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