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(0.99999999999980993 + \frac{676.520368121885099}{\left(z - 1\right) + 1}\right) + \frac{-1259.13921672240281}{\left(z - 1\right) + 2}\right) + \frac{771.32342877765313}{\left(z - 1\right) + 3}\right) + \frac{-176.615029162140587}{\left(z - 1\right) + 4}\right) + \frac{12.5073432786869052}{\left(z - 1\right) + 5}\right) + \frac{-0.138571095265720118}{\left(z - 1\right) + 6}\right) + \frac{9.98436957801957158 \cdot 10^{-6}}{\left(z - 1\right) + 7}\right) + \frac{1.50563273514931162 \cdot 10^{-7}}{\left(z - 1\right) + 8}\right)double f(double z) {
double r146385 = atan2(1.0, 0.0);
double r146386 = 2.0;
double r146387 = r146385 * r146386;
double r146388 = sqrt(r146387);
double r146389 = z;
double r146390 = 1.0;
double r146391 = r146389 - r146390;
double r146392 = 7.0;
double r146393 = r146391 + r146392;
double r146394 = 0.5;
double r146395 = r146393 + r146394;
double r146396 = r146391 + r146394;
double r146397 = pow(r146395, r146396);
double r146398 = r146388 * r146397;
double r146399 = -r146395;
double r146400 = exp(r146399);
double r146401 = r146398 * r146400;
double r146402 = 0.9999999999998099;
double r146403 = 676.5203681218851;
double r146404 = r146391 + r146390;
double r146405 = r146403 / r146404;
double r146406 = r146402 + r146405;
double r146407 = -1259.1392167224028;
double r146408 = r146391 + r146386;
double r146409 = r146407 / r146408;
double r146410 = r146406 + r146409;
double r146411 = 771.3234287776531;
double r146412 = 3.0;
double r146413 = r146391 + r146412;
double r146414 = r146411 / r146413;
double r146415 = r146410 + r146414;
double r146416 = -176.6150291621406;
double r146417 = 4.0;
double r146418 = r146391 + r146417;
double r146419 = r146416 / r146418;
double r146420 = r146415 + r146419;
double r146421 = 12.507343278686905;
double r146422 = 5.0;
double r146423 = r146391 + r146422;
double r146424 = r146421 / r146423;
double r146425 = r146420 + r146424;
double r146426 = -0.13857109526572012;
double r146427 = 6.0;
double r146428 = r146391 + r146427;
double r146429 = r146426 / r146428;
double r146430 = r146425 + r146429;
double r146431 = 9.984369578019572e-06;
double r146432 = r146431 / r146393;
double r146433 = r146430 + r146432;
double r146434 = 1.5056327351493116e-07;
double r146435 = 8.0;
double r146436 = r146391 + r146435;
double r146437 = r146434 / r146436;
double r146438 = r146433 + r146437;
double r146439 = r146401 * r146438;
return r146439;
}
herbie shell --seed 2020021 +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)))))