Cannot sample enough valid points. (more)

\[e^{\log \left(\sqrt{x.re \cdot x.re + x.im \cdot x.im}\right) \cdot y.re - \tan^{-1}_* \frac{x.im}{x.re} \cdot y.im} \cdot \cos \left(\log \left(\sqrt{x.re \cdot x.re + x.im \cdot x.im}\right) \cdot y.im + \tan^{-1}_* \frac{x.im}{x.re} \cdot y.re\right)\]
e^{\log \left(\sqrt{x.re \cdot x.re + x.im \cdot x.im}\right) \cdot y.re - \tan^{-1}_* \frac{x.im}{x.re} \cdot y.im} \cdot \cos \left(\log \left(\sqrt{x.re \cdot x.re + x.im \cdot x.im}\right) \cdot y.im + \tan^{-1}_* \frac{x.im}{x.re} \cdot y.re\right)
double f(double x_re, double x_im, double y_re, double y_im) {
        double r917655 = x_re;
        double r917656 = r917655 * r917655;
        double r917657 = x_im;
        double r917658 = r917657 * r917657;
        double r917659 = r917656 + r917658;
        double r917660 = sqrt(r917659);
        double r917661 = log(r917660);
        double r917662 = y_re;
        double r917663 = r917661 * r917662;
        double r917664 = atan2(r917657, r917655);
        double r917665 = y_im;
        double r917666 = r917664 * r917665;
        double r917667 = r917663 - r917666;
        double r917668 = exp(r917667);
        double r917669 = r917661 * r917665;
        double r917670 = r917664 * r917662;
        double r917671 = r917669 + r917670;
        double r917672 = cos(r917671);
        double r917673 = r917668 * r917672;
        return r917673;
}