TEST(xor_interface, xor_check_unsat) { SATSolver s; s.new_vars(3); s.add_xor_clause(vector<uint32_t>{0U, 1U, 2U}, false); s.add_xor_clause(vector<uint32_t>{0U, 1U, 2U}, true); lbool ret = s.solve(); EXPECT_EQ( ret, l_False); EXPECT_EQ( s.nVars(), 3u); }
TEST(xor_interface, xor_check_sat_solution) { SATSolver s; s.new_var(); s.add_xor_clause(vector<unsigned>{0U}, false); s.add_xor_clause(vector<unsigned>{0U}, true); lbool ret = s.solve(); EXPECT_EQ( ret, l_False); for(size_t i = 0;i < 10; i++) { ret = s.solve(); EXPECT_EQ( ret, l_False); } EXPECT_EQ( s.nVars(), 1u); }
TEST(xor_interface, xor_3_long2) { SATSolver s; s.new_var(); s.new_var(); s.new_var(); s.add_xor_clause(vector<uint32_t>{0U, 1U, 2U}, false); s.add_xor_clause(vector<uint32_t>{0U}, true); s.add_xor_clause(vector<uint32_t>{1U}, true); lbool ret = s.solve(); EXPECT_EQ( ret, l_True); EXPECT_EQ(s.get_model()[0], l_True); EXPECT_EQ(s.get_model()[1], l_True); EXPECT_EQ(s.get_model()[2], l_False); EXPECT_EQ( s.nVars(), 3u); }
TEST(xor_interface, xor_check_solution_values3) { SATSolver s; s.new_var(); s.new_var(); s.add_xor_clause(vector<uint32_t>{0U, 0U}, true); lbool ret = s.solve(); EXPECT_EQ( ret, l_False); }
TEST(xor_interface, xor_very_long) { SATSolver s; vector<uint32_t> vars; for(unsigned i = 0; i < 30; i++) { s.new_var(); vars.push_back(i); } s.add_xor_clause(vars, false); for(unsigned i = 0; i < 29; i++) { s.add_xor_clause(vector<uint32_t>{i}, false); } lbool ret = s.solve(); EXPECT_EQ( ret, l_True); for(unsigned i = 0; i < 30; i++) { EXPECT_EQ(s.get_model()[i], l_False); } EXPECT_EQ( s.nVars(), 30u); }
TEST(xor_interface, xor_norm_mix_unsat_multi_thread) { SATSolver s; //s.set_num_threads(3); s.new_vars(3); s.add_clause(vector<Lit>{Lit(0, false)}); s.add_xor_clause(vector<uint32_t>{0U, 1U, 2U}, false); s.add_clause(vector<Lit>{Lit(1, false)}); s.add_clause(vector<Lit>{Lit(2, false)}); lbool ret = s.solve(); EXPECT_EQ( ret, l_False); EXPECT_EQ( s.nVars(), 3u); }
TEST(xor_interface, xor_very_long2) { for(size_t num = 3; num < 30; num++) { SATSolver s; vector<uint32_t> vars; for(unsigned i = 0; i < num; i++) { s.new_var(); vars.push_back(i); } s.add_xor_clause(vars, true); for(unsigned i = 0; i < num-1; i++) { s.add_xor_clause(vector<uint32_t>{i}, false); } lbool ret = s.solve(); EXPECT_EQ( ret, l_True); for(unsigned i = 0; i < num-1; i++) { EXPECT_EQ(s.get_model()[i], l_False); } EXPECT_EQ(s.get_model()[num-1], l_True); EXPECT_EQ( s.nVars(), num); } }
TEST(xor_interface, xor_check_solution_values6) { SATSolver s; s.new_var(); s.new_var(); s.add_xor_clause(vector<uint32_t>{0U, 1U}, false); vector<Lit> assump = {Lit(0, true)}; lbool ret = s.solve(&assump); EXPECT_EQ( ret, l_True); EXPECT_EQ(s.get_model()[0], l_False); EXPECT_EQ(s.get_model()[1], l_False); EXPECT_EQ( s.nVars(), 2u); }
TEST(xor_interface, xor_check_unsat_multi_solve_multi_thread) { SATSolver s; s.set_num_threads(3); s.new_vars(3); s.add_xor_clause(vector<uint32_t>{0U, 1U}, false); s.add_xor_clause(vector<uint32_t>{0U, 1U, 2U}, true); lbool ret = s.solve(); EXPECT_EQ( ret, l_True); EXPECT_EQ( s.nVars(), 3u); s.add_xor_clause(vector<uint32_t>{0U}, false); ret = s.solve(); EXPECT_EQ( ret, l_True); EXPECT_EQ( s.get_model()[0], l_False); EXPECT_EQ( s.get_model()[1], l_False); EXPECT_EQ( s.get_model()[2], l_True); EXPECT_EQ( s.nVars(), 3u); s.add_xor_clause(vector<uint32_t>{1U}, true); ret = s.solve(); EXPECT_EQ( ret, l_False); EXPECT_EQ( s.nVars(), 3u); }
TEST(xor_interface, xor_check_solution_values) { SATSolver s; s.new_var(); s.add_xor_clause(vector<uint32_t>{0U}, true); s.add_xor_clause(vector<uint32_t>{0U}, true); lbool ret = s.solve(); EXPECT_EQ( ret, l_True); for(size_t i = 0;i < 10; i++) { ret = s.solve(); EXPECT_EQ( ret, l_True); EXPECT_EQ( s.okay(), true); } EXPECT_EQ( s.nVars(), 1u); }