Cannot sample enough valid points. (more)

\[\lambda_1 + \tan^{-1}_* \frac{\left(\sin theta \cdot \sin delta\right) \cdot \cos \phi_1}{\cos delta - \sin \phi_1 \cdot \sin \left(\sin^{-1} \left(\sin \phi_1 \cdot \cos delta + \left(\cos \phi_1 \cdot \sin delta\right) \cdot \cos theta\right)\right)}\]
\lambda_1 + \tan^{-1}_* \frac{\left(\sin theta \cdot \sin delta\right) \cdot \cos \phi_1}{\cos delta - \sin \phi_1 \cdot \sin \left(\sin^{-1} \left(\sin \phi_1 \cdot \cos delta + \left(\cos \phi_1 \cdot \sin delta\right) \cdot \cos theta\right)\right)}
double f(double lambda1, double phi1, double __attribute__((unused)) phi2, double delta, double theta) {
        double r584956 = lambda1;
        double r584957 = theta;
        double r584958 = sin(r584957);
        double r584959 = delta;
        double r584960 = sin(r584959);
        double r584961 = r584958 * r584960;
        double r584962 = phi1;
        double r584963 = cos(r584962);
        double r584964 = r584961 * r584963;
        double r584965 = cos(r584959);
        double r584966 = sin(r584962);
        double r584967 = r584966 * r584965;
        double r584968 = r584963 * r584960;
        double r584969 = cos(r584957);
        double r584970 = r584968 * r584969;
        double r584971 = r584967 + r584970;
        double r584972 = asin(r584971);
        double r584973 = sin(r584972);
        double r584974 = r584966 * r584973;
        double r584975 = r584965 - r584974;
        double r584976 = atan2(r584964, r584975);
        double r584977 = r584956 + r584976;
        return r584977;
}