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 r127458 = atan2(1.0, 0.0);
double r127459 = 2.0;
double r127460 = r127458 * r127459;
double r127461 = sqrt(r127460);
double r127462 = z;
double r127463 = 1.0;
double r127464 = r127462 - r127463;
double r127465 = 7.0;
double r127466 = r127464 + r127465;
double r127467 = 0.5;
double r127468 = r127466 + r127467;
double r127469 = r127464 + r127467;
double r127470 = pow(r127468, r127469);
double r127471 = r127461 * r127470;
double r127472 = -r127468;
double r127473 = exp(r127472);
double r127474 = r127471 * r127473;
double r127475 = 0.9999999999998099;
double r127476 = 676.5203681218851;
double r127477 = r127464 + r127463;
double r127478 = r127476 / r127477;
double r127479 = r127475 + r127478;
double r127480 = -1259.1392167224028;
double r127481 = r127464 + r127459;
double r127482 = r127480 / r127481;
double r127483 = r127479 + r127482;
double r127484 = 771.3234287776531;
double r127485 = 3.0;
double r127486 = r127464 + r127485;
double r127487 = r127484 / r127486;
double r127488 = r127483 + r127487;
double r127489 = -176.6150291621406;
double r127490 = 4.0;
double r127491 = r127464 + r127490;
double r127492 = r127489 / r127491;
double r127493 = r127488 + r127492;
double r127494 = 12.507343278686905;
double r127495 = 5.0;
double r127496 = r127464 + r127495;
double r127497 = r127494 / r127496;
double r127498 = r127493 + r127497;
double r127499 = -0.13857109526572012;
double r127500 = 6.0;
double r127501 = r127464 + r127500;
double r127502 = r127499 / r127501;
double r127503 = r127498 + r127502;
double r127504 = 9.984369578019572e-06;
double r127505 = r127504 / r127466;
double r127506 = r127503 + r127505;
double r127507 = 1.5056327351493116e-07;
double r127508 = 8.0;
double r127509 = r127464 + r127508;
double r127510 = r127507 / r127509;
double r127511 = r127506 + r127510;
double r127512 = r127474 * r127511;
return r127512;
}
herbie shell --seed 2020024 +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)))))