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 r49292355 = alpha;
        double r49292356 = beta;
        double r49292357 = r49292355 + r49292356;
        double r49292358 = r49292356 * r49292355;
        double r49292359 = r49292357 + r49292358;
        double r49292360 = 1.0;
        double r49292361 = r49292359 + r49292360;
        double r49292362 = 2.0;
        double r49292363 = 1.0;
        double r49292364 = r49292362 * r49292363;
        double r49292365 = r49292357 + r49292364;
        double r49292366 = r49292361 / r49292365;
        double r49292367 = r49292366 / r49292365;
        double r49292368 = r49292365 + r49292360;
        double r49292369 = r49292367 / r49292368;
        return r49292369;
}

Reproduce

herbie shell --seed 2019119 
(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)))