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Reading Assignment 2 Enumerative software model checking

Reading Assignment 2 Enumerative software model checking. Enumerative vs. Symbolic. Enumerative search is simple to implement a mechanism to execute a transition on a state a mechanism to backtrack the state in order to try a different transition akin to systematic testing

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Reading Assignment 2 Enumerative software model checking

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  1. Reading Assignment 2Enumerativesoftware model checking

  2. Enumerative vs. Symbolic • Enumerative search is simple to implement • a mechanism to execute a transition on a state • a mechanism to backtrack the state in order to try a different transition • akin to systematic testing • Symbolic search is usually complicated • symbolic representation for transitions • symbolic representation for states • symbolic computation of pre, post, boolean operations

  3. Model vs. Code • Models • small and more amenable to analysis • but gap between model and code may lead to false errors or missed errors • abstraction gives good coverage and might reveal interesting behaviors • Code • large and complicated • usually no false errors • very difficult to achieve coverage

  4. The environment problem

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