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 r127377 = atan2(1.0, 0.0);
double r127378 = 2.0;
double r127379 = r127377 * r127378;
double r127380 = sqrt(r127379);
double r127381 = z;
double r127382 = 1.0;
double r127383 = r127381 - r127382;
double r127384 = 7.0;
double r127385 = r127383 + r127384;
double r127386 = 0.5;
double r127387 = r127385 + r127386;
double r127388 = r127383 + r127386;
double r127389 = pow(r127387, r127388);
double r127390 = r127380 * r127389;
double r127391 = -r127387;
double r127392 = exp(r127391);
double r127393 = r127390 * r127392;
double r127394 = 0.9999999999998099;
double r127395 = 676.5203681218851;
double r127396 = r127383 + r127382;
double r127397 = r127395 / r127396;
double r127398 = r127394 + r127397;
double r127399 = -1259.1392167224028;
double r127400 = r127383 + r127378;
double r127401 = r127399 / r127400;
double r127402 = r127398 + r127401;
double r127403 = 771.3234287776531;
double r127404 = 3.0;
double r127405 = r127383 + r127404;
double r127406 = r127403 / r127405;
double r127407 = r127402 + r127406;
double r127408 = -176.6150291621406;
double r127409 = 4.0;
double r127410 = r127383 + r127409;
double r127411 = r127408 / r127410;
double r127412 = r127407 + r127411;
double r127413 = 12.507343278686905;
double r127414 = 5.0;
double r127415 = r127383 + r127414;
double r127416 = r127413 / r127415;
double r127417 = r127412 + r127416;
double r127418 = -0.13857109526572012;
double r127419 = 6.0;
double r127420 = r127383 + r127419;
double r127421 = r127418 / r127420;
double r127422 = r127417 + r127421;
double r127423 = 9.984369578019572e-06;
double r127424 = r127423 / r127385;
double r127425 = r127422 + r127424;
double r127426 = 1.5056327351493116e-07;
double r127427 = 8.0;
double r127428 = r127383 + r127427;
double r127429 = r127426 / r127428;
double r127430 = r127425 + r127429;
double r127431 = r127393 * r127430;
return r127431;
}
herbie shell --seed 2020100 +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)))))