Cannot sample enough valid points. (more)

\[x \cdot \sqrt{y \cdot y - z \cdot z}\]
x \cdot \sqrt{y \cdot y - z \cdot z}
double f(double x, double y, double z) {
        double r714971 = x;
        double r714972 = y;
        double r714973 = r714972 * r714972;
        double r714974 = z;
        double r714975 = r714974 * r714974;
        double r714976 = r714973 - r714975;
        double r714977 = sqrt(r714976);
        double r714978 = r714971 * r714977;
        return r714978;
}