Cannot sample enough valid points. (more)

\[x + \sin^{-1} \left(\cosh x\right)\]
x + \sin^{-1} \left(\cosh x\right)
double f(double x) {
        double r18021 = x;
        double r18022 = cosh(r18021);
        double r18023 = asin(r18022);
        double r18024 = r18021 + r18023;
        return r18024;
}