Cannot sample enough valid points. (more)

\[\sqrt{x - y} - \sqrt{y - x}\]
\sqrt{x - y} - \sqrt{y - x}
double f(double x, double y) {
        double r1661884 = x;
        double r1661885 = y;
        double r1661886 = r1661884 - r1661885;
        double r1661887 = sqrt(r1661886);
        double r1661888 = r1661885 - r1661884;
        double r1661889 = sqrt(r1661888);
        double r1661890 = r1661887 - r1661889;
        return r1661890;
}