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 r747393 = x;
        double r747394 = y;
        double r747395 = r747394 * r747394;
        double r747396 = z;
        double r747397 = r747396 * r747396;
        double r747398 = r747395 - r747397;
        double r747399 = sqrt(r747398);
        double r747400 = r747393 * r747399;
        return r747400;
}