Use the --timeout flag to change the timeout.
\left(\left(\sqrt{\pi \cdot 2} \cdot {\left(\left(\left(z - 1\right) + 7\right) + 0.5\right)}^{\left(\left(z - 1\right) + 0.5\right)}\right) \cdot e^{-\left(\left(\left(z - 1\right) + 7\right) + 0.5\right)}\right) \cdot \left(\left(\left(\left(\left(\left(\left(\left(0.9999999999998099298181841732002794742584 + \frac{676.5203681218850988443591631948947906494}{\left(z - 1\right) + 1}\right) + \frac{-1259.139216722402807135949842631816864014}{\left(z - 1\right) + 2}\right) + \frac{771.3234287776531346025876700878143310547}{\left(z - 1\right) + 3}\right) + \frac{-176.6150291621405870046146446838974952698}{\left(z - 1\right) + 4}\right) + \frac{12.50734327868690520801919774385169148445}{\left(z - 1\right) + 5}\right) + \frac{-0.1385710952657201178173096423051902092993}{\left(z - 1\right) + 6}\right) + \frac{9.984369578019571583242346146658263705831 \cdot 10^{-6}}{\left(z - 1\right) + 7}\right) + \frac{1.505632735149311617592788074479481785772 \cdot 10^{-7}}{\left(z - 1\right) + 8}\right)double f(double z) {
double r179681 = atan2(1.0, 0.0);
double r179682 = 2.0;
double r179683 = r179681 * r179682;
double r179684 = sqrt(r179683);
double r179685 = z;
double r179686 = 1.0;
double r179687 = r179685 - r179686;
double r179688 = 7.0;
double r179689 = r179687 + r179688;
double r179690 = 0.5;
double r179691 = r179689 + r179690;
double r179692 = r179687 + r179690;
double r179693 = pow(r179691, r179692);
double r179694 = r179684 * r179693;
double r179695 = -r179691;
double r179696 = exp(r179695);
double r179697 = r179694 * r179696;
double r179698 = 0.9999999999998099;
double r179699 = 676.5203681218851;
double r179700 = r179687 + r179686;
double r179701 = r179699 / r179700;
double r179702 = r179698 + r179701;
double r179703 = -1259.1392167224028;
double r179704 = r179687 + r179682;
double r179705 = r179703 / r179704;
double r179706 = r179702 + r179705;
double r179707 = 771.3234287776531;
double r179708 = 3.0;
double r179709 = r179687 + r179708;
double r179710 = r179707 / r179709;
double r179711 = r179706 + r179710;
double r179712 = -176.6150291621406;
double r179713 = 4.0;
double r179714 = r179687 + r179713;
double r179715 = r179712 / r179714;
double r179716 = r179711 + r179715;
double r179717 = 12.507343278686905;
double r179718 = 5.0;
double r179719 = r179687 + r179718;
double r179720 = r179717 / r179719;
double r179721 = r179716 + r179720;
double r179722 = -0.13857109526572012;
double r179723 = 6.0;
double r179724 = r179687 + r179723;
double r179725 = r179722 / r179724;
double r179726 = r179721 + r179725;
double r179727 = 9.984369578019572e-06;
double r179728 = r179727 / r179689;
double r179729 = r179726 + r179728;
double r179730 = 1.5056327351493116e-07;
double r179731 = 8.0;
double r179732 = r179687 + r179731;
double r179733 = r179730 / r179732;
double r179734 = r179729 + r179733;
double r179735 = r179697 * r179734;
return r179735;
}
herbie shell --seed 2019235 +o rules:numerics
(FPCore (z)
:name "Jmat.Real.gamma, branch z greater than 0.5"
:precision binary64
(* (* (* (sqrt (* PI 2)) (pow (+ (+ (- z 1) 7) 0.5) (+ (- z 1) 0.5))) (exp (- (+ (+ (- z 1) 7) 0.5)))) (+ (+ (+ (+ (+ (+ (+ (+ 0.99999999999980993 (/ 676.520368121885099 (+ (- z 1) 1))) (/ -1259.13921672240281 (+ (- z 1) 2))) (/ 771.32342877765313 (+ (- z 1) 3))) (/ -176.615029162140587 (+ (- z 1) 4))) (/ 12.5073432786869052 (+ (- z 1) 5))) (/ -0.138571095265720118 (+ (- z 1) 6))) (/ 9.98436957801957158e-6 (+ (- z 1) 7))) (/ 1.50563273514931162e-7 (+ (- z 1) 8)))))