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simplify more aggressively in horner scheme, imlement is_linear

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2019-08-21 10:31:13 -07:00
parent eb5b9557ed
commit 81a9edae7e
4 changed files with 40 additions and 9 deletions
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11
src/math/lp/cross_nested.h
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@ -59,6 +59,8 @@ public:
void run(nex *e) {
TRACE("nla_cn", tout << *e << "\n";);
SASSERT(e->is_simplified());
m_e = e;
#ifdef Z3DEBUG
// m_e_clone = clone(m_e);
@ -503,13 +505,10 @@ public:
}
}
void update_front_with_split_with_non_empty_b(nex* &e, lpvar j, vector<nex**> & front, nex* a, nex* b) {
SASSERT(a->is_sum());
void update_front_with_split_with_non_empty_b(nex* &e, lpvar j, vector<nex**> & front, nex_sum* a, nex* b) {
TRACE("nla_cn_details", tout << "b = " << *b << "\n";);
e = mk_sum(mk_mul(mk_var(j), a), b); // e = j*a + b
if (!to_sum(a)->is_linear()) {
if (!a->is_linear()) {
nex **ptr_to_a = &(to_mul(to_sum(e)->children()[0]))->children()[1];
push_to_front(front, ptr_to_a);
}
@ -520,7 +519,7 @@ public:
}
}
void update_front_with_split(nex* & e, lpvar j, vector<nex**> & front, nex* a, nex* b) {
void update_front_with_split(nex* & e, lpvar j, vector<nex**> & front, nex_sum* a, nex* b) {
if (b == nullptr) {
e = mk_mul(mk_var(j), a);
if (!to_sum(a)->is_linear())