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 r2561 = x;
        double r2562 = cosh(r2561);
        double r2563 = asin(r2562);
        double r2564 = r2561 + r2563;
        return r2564;
}