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 r992538 = x;
        double r992539 = cosh(r992538);
        double r992540 = asin(r992539);
        double r992541 = r992538 + r992540;
        return r992541;
}