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Fibonacci And Honey Bees Have Something In Common: A Sweet Spot For Formal


Time flies and the OneSpin’s Holiday Puzzle tradition has reached its third year. In December 2016, OneSpin challenged engineers everywhere to solve the Einstein riddle using assertions and a formal verification tool. In December 2017, the challenge was to model the hardest Sudoku in the world using assertions and find a solution with a formal tool. In addition, participants had to prove that... » read more

Utilizing More Data To Improve Chip Design


Just about every step of the IC tool flow generates some amount of data. But certain steps generate a mind-boggling amount of data, not all of which is of equal value. The challenge is figuring out what's important for which parts of the design flow. That determines what to extract and loop back to engineers, and when that needs to be done in order to improve the reliability of increasingly com... » read more

Formal Apps Take The Bias Out Off Functional Verification


The Questa Formal Apps automate common formal analysis tasks, providing a multiple set of tools for formal verification experts and novices alike. Each of these automated tasks are integrated into a holistic, formal analysis workflow that allows you to use what you need when you need it. This paper describes common verification challenges and how specific Questa Formal Apps handle them along wi... » read more

Fixing Functional Coverage


Constrained random test pattern generation entered the scene a couple of decades ago as a better way to spend time and resources for the creation of stimulus. Stimulus definition had become an arduous task—defining the patterns necessary to exercise designs of increasing size. It was successfully argued that spending time writing models instead of creating stimulus and having a computer p... » read more