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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/restart.cpp
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@ -40,6 +40,8 @@ namespace polysat {
s.pop_levels(s.m_level - s.base_level());
m_conflicts_at_restart = s.m_stats.m_num_conflicts;
m_restart_threshold = m_restart_init * get_luby(++m_luby_idx);
verbose_stream() << "Restart with Conflict #" << s.m_stats.m_num_conflicts << "\n";
s.randomize_activity();
}
}