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 r155921 = atan2(1.0, 0.0);
double r155922 = 2.0;
double r155923 = r155921 * r155922;
double r155924 = sqrt(r155923);
double r155925 = z;
double r155926 = 1.0;
double r155927 = r155925 - r155926;
double r155928 = 7.0;
double r155929 = r155927 + r155928;
double r155930 = 0.5;
double r155931 = r155929 + r155930;
double r155932 = r155927 + r155930;
double r155933 = pow(r155931, r155932);
double r155934 = r155924 * r155933;
double r155935 = -r155931;
double r155936 = exp(r155935);
double r155937 = r155934 * r155936;
double r155938 = 0.9999999999998099;
double r155939 = 676.5203681218851;
double r155940 = r155927 + r155926;
double r155941 = r155939 / r155940;
double r155942 = r155938 + r155941;
double r155943 = -1259.1392167224028;
double r155944 = r155927 + r155922;
double r155945 = r155943 / r155944;
double r155946 = r155942 + r155945;
double r155947 = 771.3234287776531;
double r155948 = 3.0;
double r155949 = r155927 + r155948;
double r155950 = r155947 / r155949;
double r155951 = r155946 + r155950;
double r155952 = -176.6150291621406;
double r155953 = 4.0;
double r155954 = r155927 + r155953;
double r155955 = r155952 / r155954;
double r155956 = r155951 + r155955;
double r155957 = 12.507343278686905;
double r155958 = 5.0;
double r155959 = r155927 + r155958;
double r155960 = r155957 / r155959;
double r155961 = r155956 + r155960;
double r155962 = -0.13857109526572012;
double r155963 = 6.0;
double r155964 = r155927 + r155963;
double r155965 = r155962 / r155964;
double r155966 = r155961 + r155965;
double r155967 = 9.984369578019572e-06;
double r155968 = r155967 / r155929;
double r155969 = r155966 + r155968;
double r155970 = 1.5056327351493116e-07;
double r155971 = 8.0;
double r155972 = r155927 + r155971;
double r155973 = r155970 / r155972;
double r155974 = r155969 + r155973;
double r155975 = r155937 * r155974;
return r155975;
}
herbie shell --seed 2020001 +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)))) (+ (+ (+ (+ (+ (+ (+ (+ 0.9999999999998099 (/ 676.5203681218851 (+ (- z 1) 1))) (/ -1259.1392167224028 (+ (- z 1) 2))) (/ 771.3234287776531 (+ (- z 1) 3))) (/ -176.6150291621406 (+ (- z 1) 4))) (/ 12.507343278686905 (+ (- z 1) 5))) (/ -0.13857109526572012 (+ (- z 1) 6))) (/ 9.984369578019572e-06 (+ (- z 1) 7))) (/ 1.5056327351493116e-07 (+ (- z 1) 8)))))