mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-07 09:55:19 +00:00
Code Activity

fix #6988

Browse source
This commit is contained in:
Nikolaj Bjorner 2023-11-14 07:30:32 -08:00
parent c2610cb37c
commit 3c2e97ddb6
1 changed files with 6 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
src/qe/nlqsat.cpp
View file

@ -558,9 +558,13 @@ namespace qe {
div_rewriter_cfg(nlqsat& s): m(s.m), a(s.m), m_zero(a.mk_real(0), m) {} div_rewriter_cfg(nlqsat& s): m(s.m), a(s.m), m_zero(a.mk_real(0), m) {}
~div_rewriter_cfg() {} ~div_rewriter_cfg() {}
br_status reduce_app(func_decl* f, unsigned sz, expr* const* args, expr_ref& result, proof_ref& pr) { br_status reduce_app(func_decl* f, unsigned sz, expr* const* args, expr_ref& result, proof_ref& pr) {
rational r(1); rational r1, r(1);
if (a.is_div(f) && sz == 2 && a.is_numeral(args[0], r1) && a.is_numeral(args[1], r) && !r.is_zero()) {
result = a.mk_real(r1 / r);
return BR_DONE;
}
if (is_decl_of(f, a.get_family_id(), OP_DIV) && if (is_decl_of(f, a.get_family_id(), OP_DIV) &&
sz == 2 && (!a.is_numeral(args[1], r) || r.is_zero()) && sz == 2 &&
is_ground(args[0]) && is_ground(args[1])) { is_ground(args[0]) && is_ground(args[1])) {
result = m.mk_fresh_const("div", a.mk_real()); result = m.mk_fresh_const("div", a.mk_real());
m_divs.push_back(div(m, args[0], args[1], to_app(result))); m_divs.push_back(div(m, args[0], args[1], to_app(result)));
@ -609,9 +613,6 @@ namespace qe {
} }
expr* n1, *n2; expr* n1, *n2;
rational r; rational r;
if (a.is_div(n, n1, n2) && a.is_numeral(n2, r) && !r.is_zero()) {
return;
}
if (a.is_power(n, n1, n2) && a.is_numeral(n2, r) && r.is_unsigned() && r.is_pos()) { if (a.is_power(n, n1, n2) && a.is_numeral(n2, r) && r.is_unsigned() && r.is_pos()) {
return; return;
} }