mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2026-04-06 04:36:08 +00:00
Code Activity

add note about propagate-eq

Browse source 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2026-03-29 15:19:36 -07:00
parent ebd35bc5a3
commit 3db734d249
2 changed files with 39 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

6
src/smt/seq/seq_nielsen.cpp
View file

@ -533,7 +533,7 @@ namespace seq {
expr* pow_base = nullptr, *pow_exp = nullptr;
if (e) seq.str.is_power(e, pow_base, pow_exp);
if (pow_exp) {
expr* zero = arith.mk_numeral(rational(0), true);
expr* zero = arith.mk_int(0);
add_constraint(
constraint(m.mk_eq(pow_exp, zero), dep, m));
}
@ -553,7 +553,7 @@ namespace seq {
// Check if exponent b equals exponent a + diff for some rational constant diff.
// Uses syntactic matching on Z3 expression structure: pointer equality
// detects shared sub-expressions created during ConstNumUnwinding.
//
//
static bool get_const_power_diff(expr* b, expr* a, arith_util& arith, rational& diff) {
if (a == b) { diff = rational(0); return true; }
expr* x = nullptr, *y = nullptr;
@ -1692,7 +1692,7 @@ namespace seq {
child->apply_subst(m_sg, s);
expr* pow_exp = get_power_exp_expr(pow_head, seq);
if (pow_exp) {
expr* zero = arith.mk_numeral(rational(0), true);
expr *zero = arith.mk_int(0);
e->add_side_constraint(mk_constraint(m.mk_eq(pow_exp, zero), eq.m_dep));
}
return true;