mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-09-10 19:51:25 +00:00
Code Activity

Several changes:

Browse source 
- 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
Download patch file Download diff file Expand all files Collapse all files

8
src/math/polysat/simplify_clause.h
View file

@ -24,6 +24,11 @@ namespace polysat {
bool positive;
unsigned src_idx;
};
struct leading_bits {
unsigned length;
bool positive; // either all 0 or all 1
unsigned src_idx;
};
struct single_bit {
bool positive;
unsigned position;
@ -60,7 +65,8 @@ namespace polysat {
bool apply(clause& cl);
static bool get_trailing_mask(pdd lhs, pdd rhs, pdd& p, trailing_bits& mask, bool pos);
static bool get_lsb(pdd lhs, pdd rhs, pdd& p, trailing_bits& info, bool pos);
static bool get_msb(pdd lhs, pdd rhs, pdd& p, leading_bits& info, bool pos);
static bool get_bit(const pdd& lhs, const pdd& rhs, pdd& p, single_bit& bit, bool pos);
};