Handle some special cases of bitand in invariant and Interval, DefExc, and Congruences
#1154
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michael-schwarz
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Sep 10, 2023
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sim642
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This handles some special cases of
bitandwhere the second argument can be proven to be1or0, allowing for tracking the value of the LSB as suggested in #1153.This focuses on this special use case for now, there is lots of potential to become more precise in the remaining cases as well, but for now it is not clear to me where that would be beneficial (and to what extent).
(Though a principled handling of all bit-wise operations in all supported domains and comparison of the results before and after on sv-comp might be a good topic for a Bachelor's thesis)