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 r6326 = x;
        double r6327 = cosh(r6326);
        double r6328 = asin(r6327);
        double r6329 = r6326 + r6328;
        return r6329;
}