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sav07_lecture_3_skeleton [2007/03/20 14:58] vkuncak |
sav07_lecture_3_skeleton [2007/03/20 17:19] vkuncak |
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| when c is a basic command. | when c is a basic command. | ||
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| We can apply these rules to reduce the size of formulas. | We can apply these rules to reduce the size of formulas. | ||
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| + | ==== Symbolic execution ==== | ||
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| + | Symbolic execution converts programs into formulas by going forward. It is therefore somewhat analogous to the way an [[interpreter]] for the language would work. It is based on the notion of strongest postcondition. | ||
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| + | ==== Weakest preconditions ==== | ||
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| + | While symbolic execution computes formula by going forward along the program syntax tree, weakest precondition computes formula by going backward. | ||
| ==== Papers ==== | ==== Papers ==== | ||