int main(int argc, char * argv[]) {
opensmt_init();
opensmt_context ctx = opensmt_mk_context(qf_nra);
opensmt_set_precision (ctx, 0.001);
opensmt_expr x = opensmt_mk_real_var(ctx, "x" , -3.141592, 3.141592);
opensmt_expr y = opensmt_mk_real_var(ctx, "y" , -3.141592, 3.141592);
opensmt_expr eq1 = opensmt_mk_eq(ctx, opensmt_mk_sin(ctx, x), opensmt_mk_cos(ctx, y));
opensmt_assert(ctx, eq1);
opensmt_result res = opensmt_check(ctx);
fprintf(stderr, "%s\n\n", res == l_false ? "unsat" : "sat");
if (res == l_true) {
double const x_lb = opensmt_get_lb(ctx, x);
double const x_ub = opensmt_get_ub(ctx, x);
fprintf(stderr, "x = [%f, %f]\n", x_lb, x_ub);
double const y_lb = opensmt_get_lb(ctx, y);
double const y_ub = opensmt_get_ub(ctx, y);
fprintf(stderr, "y = [%f, %f]\n", y_lb, y_ub);
}
opensmt_expr eq2 = opensmt_mk_eq(ctx, opensmt_mk_tan(ctx, x), opensmt_mk_sin(ctx, y));
opensmt_assert(ctx, eq2);
res = opensmt_check(ctx);
fprintf(stderr, "%s\n\n", res == l_false ? "unsat" : "sat");
if (res == l_true) {
double const x_lb = opensmt_get_lb(ctx, x);
double const x_ub = opensmt_get_ub(ctx, x);
fprintf(stderr, "x = [%f, %f]\n", x_lb, x_ub);
double const y_lb = opensmt_get_lb(ctx, y);
double const y_ub = opensmt_get_ub(ctx, y);
fprintf(stderr, "y = [%f, %f]\n", y_lb, y_ub);
}
opensmt_del_context(ctx);
return 0;
}
int main() {
/* (assert(= x_0 0)) */
/* (assert(= x_18 (sin x_1))) */
/* (assert(= x_21 (cos x_2))) */
/* (assert(= x_22 (+ x_21 x_18))) */
opensmt_init();
opensmt_context ctx = opensmt_mk_context(qf_nra);
opensmt_set_verbosity(ctx, 10);
opensmt_expr x_0 = opensmt_mk_unbounded_real_var(ctx, "x_0");
opensmt_expr x_1 = opensmt_mk_unbounded_real_var(ctx, "x_1");
opensmt_expr x_18 = opensmt_mk_unbounded_real_var(ctx, "x_18");
opensmt_expr x_21 = opensmt_mk_unbounded_real_var(ctx, "x_21");
opensmt_expr x_22 = opensmt_mk_unbounded_real_var(ctx, "x_22");
opensmt_expr zero = opensmt_mk_num(ctx, 0.0);
opensmt_expr assert_1 = opensmt_mk_eq(ctx, x_0, zero);
opensmt_expr assert_2 = opensmt_mk_eq(ctx, x_18, opensmt_mk_sin(ctx, x_1));
opensmt_expr assert_3 = opensmt_mk_eq(ctx, x_21, opensmt_mk_cos(ctx, x_1));
opensmt_expr assert_4 = opensmt_mk_eq(ctx, x_22, opensmt_mk_plus_2(ctx, x_21, x_18));
opensmt_assert(ctx, assert_1);
opensmt_assert(ctx, assert_2);
opensmt_assert(ctx, assert_3);
opensmt_assert(ctx, assert_4);
opensmt_result res = opensmt_check( ctx );
printf( "%s\n\n", res == l_false ? "unsat" : "sat" );
opensmt_del_context(ctx);
return 0;
}
int main(int argc, char * argv[]) {
// Creating context
fprintf(stderr, "Creating context\n");
opensmt_init();
opensmt_context ctx = opensmt_mk_context(qf_nra);
// Setting verbosity
opensmt_set_verbosity(ctx, 4);
// Creating integer variables
fprintf(stderr, "Creating some integer variables\n");
opensmt_expr x = opensmt_mk_int_var(ctx, "x" , -10, 10);
opensmt_expr y = opensmt_mk_int_var(ctx, "y" , -10, 10);
// numbers -- 2, 7, 10
opensmt_expr num2 = opensmt_mk_num_from_string(ctx, "2");
opensmt_expr num7 = opensmt_mk_num_from_string(ctx, "7");
opensmt_expr num10 = opensmt_mk_num_from_string(ctx, "10");
// t1 = x > 2
opensmt_expr t1 = opensmt_mk_gt(ctx, x, num2);
// t2 = y < 10
opensmt_expr t2 = opensmt_mk_lt(ctx, y, num10);
// t3 = 2 * y
opensmt_expr subarray1[2] = {num2, y};
opensmt_expr t3 = opensmt_mk_times(ctx, subarray1, 2);
// t4 = x + t3 == 7
opensmt_expr subarray2[2] = {x, t3};
opensmt_expr t4 = opensmt_mk_eq(ctx, opensmt_mk_plus(ctx, subarray2, 2), num7);
// t5 = t1 /\ t2 /\ t4
opensmt_expr subarray3[3] = {t1, t2, t4};
opensmt_expr t5 = opensmt_mk_and(ctx, subarray3, 3);
opensmt_assert(ctx, t5);
// Checking for consistency
fprintf(stderr, "\nChecking for consistency: ");
opensmt_result res = opensmt_check(ctx);
fprintf(stderr, "%s\n\n", res == l_false ? "unsat" : "sat");
if (res == l_true) {
print_sol(ctx, x, y);
}
// Resetting context
fprintf(stderr, "Resetting context\n");
opensmt_reset(ctx);
// Deleting context
fprintf(stderr, "Deleting context\n");
opensmt_del_context(ctx);
return 0;
}
int main(int argc, char * argv[]) {
opensmt_init();
opensmt_context ctx = opensmt_mk_context(qf_nra);
opensmt_expr x = opensmt_mk_real_var(ctx, "x" , 0.0, 1.0);
opensmt_expr y = opensmt_mk_real_var(ctx, "y" , 0.0, 1.0);
opensmt_expr ite = opensmt_mk_ite(ctx, opensmt_mk_gt(ctx, x, opensmt_mk_num(ctx, 0.4)),
opensmt_mk_num(ctx, 0.3),
opensmt_mk_num(ctx, 0.4));
opensmt_expr eq = opensmt_mk_eq(ctx, y, ite);
opensmt_assert( ctx, eq);
opensmt_result res = opensmt_check(ctx);
fprintf(stderr, "%s\n\n", res == l_false ? "unsat" : "sat");
if (res == l_true) {
print_sol(ctx, x, y);
}
fprintf(stderr, "Deleting context\n");
opensmt_del_context(ctx);
return 0;
}
