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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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1
src/math/polysat/ule_constraint.h
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@ -41,7 +41,6 @@ namespace polysat {
lbool eval() const override;
lbool eval(assignment const& a) const override;
void narrow(solver& s, bool is_positive, bool first) override;
bool propagate_bits(solver& s, bool is_positive) override;
unsigned hash() const override;
bool operator==(constraint const& other) const override;
bool is_eq() const override { return m_rhs.is_zero(); }