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 r49916202 = alpha;
        double r49916203 = beta;
        double r49916204 = r49916202 + r49916203;
        double r49916205 = r49916203 * r49916202;
        double r49916206 = r49916204 + r49916205;
        double r49916207 = 1.0;
        double r49916208 = r49916206 + r49916207;
        double r49916209 = 2.0;
        double r49916210 = 1.0;
        double r49916211 = r49916209 * r49916210;
        double r49916212 = r49916204 + r49916211;
        double r49916213 = r49916208 / r49916212;
        double r49916214 = r49916213 / r49916212;
        double r49916215 = r49916212 + r49916207;
        double r49916216 = r49916214 / r49916215;
        return r49916216;
}

Reproduce

herbie shell --seed 2019112 +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)))