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 r12181 = x;
        double r12182 = cosh(r12181);
        double r12183 = asin(r12182);
        double r12184 = r12181 + r12183;
        return r12184;
}