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unit test for #2650

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-10-24 10:32:56 -07:00
parent 8125fb134f
commit 60dde9f3d5
2 changed files with 72 additions and 8 deletions
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63
src/test/nlsat.cpp
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@ -315,6 +315,20 @@ static void project(nlsat::solver& s, nlsat::explain& ex, nlsat::var x, unsigned
std::cout << "\n";
}
static void project_fa(nlsat::solver& s, nlsat::explain& ex, nlsat::var x, unsigned num, nlsat::literal const* lits) {
std::cout << "Project ";
nlsat::scoped_literal_vector result(s);
ex(num, lits, result);
std::cout << "(or";
for (auto l : result) {
s.display(std::cout << " ", l);
}
for (unsigned i = 0; i < num; ++i) {
s.display(std::cout << " ", ~lits[i]);
}
std::cout << ")\n";
}
static nlsat::literal mk_gt(nlsat::solver& s, nlsat::poly* p) {
nlsat::poly * _p[1] = { p };
bool is_even[1] = { false };
@ -695,7 +709,56 @@ static void tst10() {
std::cout << "\n";
}
static void tst11() {
params_ref ps;
reslimit rlim;
nlsat::solver s(rlim, ps, false);
anum_manager & am = s.am();
nlsat::pmanager & pm = s.pm();
nlsat::assignment as(am);
nlsat::explain& ex = s.get_explain();
nlsat::var x, y, z;
y = s.mk_var(false);
z = s.mk_var(false);
x = s.mk_var(false);
polynomial_ref p1(pm), p2(pm), _x(pm), _y(pm), _z(pm);
_x = pm.mk_polynomial(x);
_y = pm.mk_polynomial(y);
_z = pm.mk_polynomial(z);
nlsat::scoped_literal_vector lits(s);
scoped_anum zero(am), one(am), five(am);
am.set(zero, 0);
am.set(one, 1);
am.set(five, 5);
as.set(z, zero);
as.set(y, five);
as.set(x, five);
s.set_rvalues(as);
p1 = (_x - _y);
p2 = ((_x*_x) - (_x*_y) - _z);
lits.reset();
lits.push_back(mk_gt(s, p1));
lits.push_back(mk_eq(s, p2));
project_fa(s, ex, x, 2, lits.c_ptr());
return;
p1 = (_x - _y);
p2 = ((_x*_x) - (_x*_y));
lits.reset();
lits.push_back(mk_gt(s, p1));
lits.push_back(mk_eq(s, p2));
project_fa(s, ex, x, 2, lits.c_ptr());
}
void tst_nlsat() {
tst11();
std::cout << "------------------\n";
return;
tst10();
std::cout << "------------------\n";
tst9();