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 r8018 = x;
        double r8019 = cosh(r8018);
        double r8020 = asin(r8019);
        double r8021 = r8018 + r8020;
        return r8021;
}