mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-23 17:15:31 +00:00
Code Activity

rewrite horner scheme on top of nex_expr as a pointer

Browse source 
Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2019-08-15 17:15:45 -07:00
parent 0f2c8c21ff
commit 9fbd0da931
7 changed files with 563 additions and 695 deletions
Download patch file Download diff file Expand all files Collapse all files

35
src/test/lp/lp.cpp
View file

@ -68,26 +68,33 @@ void test_basic_lemma_for_mon_zero_from_factors_to_monomial();
void test_basic_lemma_for_mon_neutral_from_monomial_to_factors();
void test_basic_lemma_for_mon_neutral_from_factors_to_monomial();
void test_cn_on_expr(horner::nex t) {
TRACE("nla_cn", tout << "t=" << t << '\n';);
cross_nested cn(t, [](const horner::nex& n) {
TRACE("nla_cn_test", tout << n << "\n";);
return false;
} ,
[](unsigned) { return false; });
cn.run();
void test_cn_on_expr(nex_sum *t, cross_nested& cn) {
TRACE("nla_cn", tout << "t=" << *t << '\n';);
cn.run(t);
}
void test_cn() {
typedef horner::nex nex;
cross_nested cn([](const nex* n) {
TRACE("nla_cn_test", tout << *n << "\n";);
return false;
} ,
[](unsigned) { return false; });
enable_trace("nla_cn");
enable_trace("nla_cn_details");
nex a = nex::var(0), b = nex::var(1), c = nex::var(2), d = nex::var(3), e = nex::var(4), f = nex::var(5), g = nex::var(6);
nex min_1 = nex::scalar(rational(-1));
nex_var* a = cn.mk_var(0);
nex_var* b = cn.mk_var(1);
nex_var* c = cn.mk_var(2);
nex_var* d = cn.mk_var(3);
nex_var* e = cn.mk_var(4);
nex_var* f = cn.mk_var(5);
nex_var* g = cn.mk_var(6);
nex* min_1 = cn.mk_scalar(rational(-1));
// test_cn_on_expr(min_1*c*e + min_1*b*d + min_1*a*b + a*c);
TRACE("nla_cn", tout << "done\n";);
test_cn_on_expr(b*c*d - b*c*g);
nex* bcd = cn.mk_mul(b, c, d);
nex_mul* bcg = cn.mk_mul(b, c, g);
bcg->add_child(min_1);
nex_sum* t = cn.mk_sum(bcd, bcg);
test_cn_on_expr(t, cn);
// test_cn_on_expr(a*a*d + a*b*c*d + a*a*c*c*d + a*d*d + e*a*e + e*a*c + e*d);
// TRACE("nla_cn", tout << "done\n";);
// test_cn_on_expr(a*b*d + a*b*c + c*b*d + a*c*d);