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reverse the order in nex expressions

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2019-10-15 14:40:10 -07:00
parent 4daa841116
commit 0f948d7a07
3 changed files with 29 additions and 18 deletions
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19
src/test/lp/lp.cpp
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@ -82,11 +82,16 @@ void test_nex_order() {
nex_creator r;
r.set_number_of_vars(3);
for (unsigned j = 0; j < r.get_number_of_vars(); j++)
r.set_var_weight(j, j);
r.set_var_weight(j, 10 - j);
nex_var* a = r.mk_var(0);
nex_var* b = r.mk_var(1);
nex_var* c = r.mk_var(2);
SASSERT(r.lt(a, b));
SASSERT(r.lt(b, c));
SASSERT(r.lt(a, c));
nex* ab = r.mk_mul(a, b);
nex* ba = r.mk_mul(b, a);
nex* ac = r.mk_mul(a, c);
@ -96,14 +101,18 @@ void test_nex_order() {
nex* _2ab = r.mk_mul(rational(2), a, b);
SASSERT(r.lt(ab, _3ac));
SASSERT(!r.lt(_3ac, ab));
SASSERT(r.lt(a, ab));
SASSERT(!r.lt(ab, a));
SASSERT(!r.lt(a, ab));
SASSERT(r.lt(ab, a));
SASSERT(r.lt(_2ab, _3ac));
SASSERT(!r.lt(_3ac, _2ab));
nex* _2a = r.mk_mul(rational(2), a);
SASSERT(r.lt(_2a, _2ab));
SASSERT(!r.lt(_2ab, _2a));
SASSERT(!r.lt(_2a, _2ab));
SASSERT(r.lt(_2ab, _2a));
SASSERT(nex_creator::equal(ab, ba));
nex_sum * five_a_pl_one = r.mk_sum(r.mk_mul(rational(5), a), r.mk_scalar(rational(1)));
nex_mul * poly = r.mk_mul(five_a_pl_one, b);
nex * p = r.simplify(poly);
std::cout << "poly = " << *poly << " , p = " << *p << "\n";
}
void test_simplify() {