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debug dio

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This commit is contained in:
Lev Nachmanson 2024-08-24 13:03:25 -10:00 • committed by Lev Nachmanson
parent cd13890650
commit df18885f97
5 changed files with 206 additions and 110 deletions
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66
src/test/lp/lp.cpp
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@ -491,6 +491,7 @@ void setup_args_parser(argument_parser &parser) {
"-nla_blnt_fm",
"test_basic_lemma_for_mon_neutral_from_factors_to_monomial");
parser.add_option_with_help_string("-hnf", "test hermite normal form");
parser.add_option_with_help_string("-dio", "dioph equalities");
parser.add_option_with_help_string("-gomory", "gomory");
parser.add_option_with_help_string("-intd", "test integer_domain");
parser.add_option_with_help_string("-xyz_sample",
@ -1605,6 +1606,7 @@ void test_larger_generated_hnf() {
std::cout << "test_larger_generated_rank_hnf passed" << std::endl;
}
#endif
void test_maximize_term() {
std::cout << "test_maximize_term\n";
lar_solver solver;
@ -1646,6 +1648,64 @@ void test_maximize_term() {
std::cout << "v[" << p.first << "] = " << p.second << std::endl;
}
}
void test_dio() {
std::cout << "test dio\n";
lar_solver solver;
int_solver i_solver(solver);
lp::explanation exp;
i_solver.set_expl(&exp);
unsigned _x1 = 0;
unsigned _x2 = 1;
unsigned _x3 = 2;
unsigned _fx_7 = 3;
unsigned _fx_17 = 4;
/*
3x1 + 3x2 + 14x3 − 7 = 0
7x1 + 12x2 + 31x3 − 17 = 0
*/
lpvar x1 = solver.add_var(_x1, true);
lpvar x2 = solver.add_var(_x2, true);
lpvar x3 = solver.add_var(_x3, true);
lpvar fx_7 = solver.add_var(_fx_7, true);
lpvar fx_17 = solver.add_var(_fx_17, true);
vector<std::pair<mpq, lpvar>> term_ls;
/* 3x1 + 3x2 + 14x3 − 7 */
term_ls.push_back(std::pair<mpq, lpvar>(mpq(3), x1));
term_ls.push_back(std::pair<mpq, lpvar>(mpq(3), x2));
term_ls.push_back(std::pair<mpq, lpvar>(mpq(14), x3));
term_ls.push_back(std::pair<mpq, lpvar>(mpq(-1), fx_7));
for (auto & p: term_ls) {
p.first = -p.first;
}
unsigned t0 = solver.add_term(term_ls, 10);
term_ls.clear();
/* 7x1 + 12x2 + 31x3 − 17 = 0*/
term_ls.push_back(std::pair<mpq, lpvar>(mpq(7), x1));
term_ls.push_back(std::pair<mpq, lpvar>(mpq(12), x2));
term_ls.push_back(std::pair<mpq, lpvar>(mpq(31), x3));
term_ls.push_back(std::pair<mpq, lpvar>(mpq(-1), fx_17));
for (auto & p: term_ls) {
p.first = -p.first;
}
unsigned t1 = solver.add_term(term_ls, 11);
solver.add_var_bound(fx_7, LE, mpq(-7));
solver.add_var_bound(fx_7, GE, mpq(-7));
solver.add_var_bound(fx_17, LE, mpq(-17));
solver.add_var_bound(fx_17, GE, mpq(-17));
solver.add_var_bound(t0, LE, mpq(0));
solver.add_var_bound(t0, GE, mpq(0));
solver.add_var_bound(t1, LE, mpq(0));
solver.add_var_bound(t1, GE, mpq(0));
// solver.find_feasible_solution();
//lp_assert(solver.get_status() == lp_status::OPTIMAL);
enable_trace("dioph_eq");
enable_trace("dioph_eq_fresh");
auto r = i_solver.dio_test();
}
#ifdef Z3DEBUG
void test_hnf() {
test_larger_generated_hnf();
@ -1782,6 +1842,12 @@ void test_lp_local(int argn, char **argv) {
return finalize(0);
}
if (args_parser.option_is_used("-dio")) {
test_dio();
return finalize(0);
}
if (args_parser.option_is_used("-gomory")) {
test_gomory_cut();
return finalize(0);