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 r18533 = x;
        double r18534 = cosh(r18533);
        double r18535 = asin(r18534);
        double r18536 = r18533 + r18535;
        return r18536;
}