Timeout in 10.0m

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\[\alpha \gt -1 \land \beta \gt -1\]
\[\frac{\frac{\frac{\left(\left(\alpha + \beta\right) + \beta \cdot \alpha\right) + 1.0}{\left(\alpha + \beta\right) + 2 \cdot 1}}{\left(\alpha + \beta\right) + 2 \cdot 1}}{\left(\left(\alpha + \beta\right) + 2 \cdot 1\right) + 1.0}\]
\frac{\frac{\frac{\left(\left(\alpha + \beta\right) + \beta \cdot \alpha\right) + 1.0}{\left(\alpha + \beta\right) + 2 \cdot 1}}{\left(\alpha + \beta\right) + 2 \cdot 1}}{\left(\left(\alpha + \beta\right) + 2 \cdot 1\right) + 1.0}
double f(double alpha, double beta) {
        double r47674646 = alpha;
        double r47674647 = beta;
        double r47674648 = r47674646 + r47674647;
        double r47674649 = r47674647 * r47674646;
        double r47674650 = r47674648 + r47674649;
        double r47674651 = 1.0;
        double r47674652 = r47674650 + r47674651;
        double r47674653 = 2.0;
        double r47674654 = 1.0;
        double r47674655 = r47674653 * r47674654;
        double r47674656 = r47674648 + r47674655;
        double r47674657 = r47674652 / r47674656;
        double r47674658 = r47674657 / r47674656;
        double r47674659 = r47674656 + r47674651;
        double r47674660 = r47674658 / r47674659;
        return r47674660;
}

Reproduce

herbie shell --seed 2019107 +o rules:numerics
(FPCore (alpha beta)
  :name "Octave 3.8, jcobi/3"
  :pre (and (> alpha -1) (> beta -1))
  (/ (/ (/ (+ (+ (+ alpha beta) (* beta alpha)) 1.0) (+ (+ alpha beta) (* 2 1))) (+ (+ alpha beta) (* 2 1))) (+ (+ (+ alpha beta) (* 2 1)) 1.0)))