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 r8138 = x;
        double r8139 = cosh(r8138);
        double r8140 = asin(r8139);
        double r8141 = r8138 + r8140;
        return r8141;
}