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 r15889 = x;
        double r15890 = cosh(r15889);
        double r15891 = asin(r15890);
        double r15892 = r15889 + r15891;
        return r15892;
}