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Several changes:

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- Extend fixed-bit FI to both directions
- really randomized restart
- MSB for fixed-bits
- Forward propagation (band, lshift, rshift) with good justifications (strengthen during saturation)
This commit is contained in:
Clemens Eisenhofer 2023-03-07 15:21:14 +01:00
parent 5a8c0ce9c0
commit 5b35450891
18 changed files with 539 additions and 1588 deletions
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2
src/math/polysat/saturation.h
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@ -173,6 +173,8 @@ namespace polysat {
bool try_umul_noovfl_bounds(pvar v, signed_constraint c, conflict& core);
bool try_umul_ovfl_bounds(pvar v, signed_constraint c, conflict& core);
bool try_op(pvar v, signed_constraint c, conflict& core);
public:
saturation(solver& s);
void perform(pvar v, conflict& core);