\[z \leq 0.5\]
\[\]

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2020273 
(FPCore (z)
  :name "Jmat.Real.gamma, branch z less than 0.5"
  :precision binary64
  :pre (<= z 0.5)
  (* (/ PI (sin (* PI z))) (* (* (* (sqrt (* PI 2.0)) (pow (+ (+ (- (- 1.0 z) 1.0) 7.0) 0.5) (+ (- (- 1.0 z) 1.0) 0.5))) (exp (- (+ (+ (- (- 1.0 z) 1.0) 7.0) 0.5)))) (+ (+ (+ (+ (+ (+ (+ (+ 0.9999999999998099 (/ 676.5203681218851 (+ (- (- 1.0 z) 1.0) 1.0))) (/ -1259.1392167224028 (+ (- (- 1.0 z) 1.0) 2.0))) (/ 771.3234287776531 (+ (- (- 1.0 z) 1.0) 3.0))) (/ -176.6150291621406 (+ (- (- 1.0 z) 1.0) 4.0))) (/ 12.507343278686905 (+ (- (- 1.0 z) 1.0) 5.0))) (/ -0.13857109526572012 (+ (- (- 1.0 z) 1.0) 6.0))) (/ 9.984369578019572e-06 (+ (- (- 1.0 z) 1.0) 7.0))) (/ 1.5056327351493116e-07 (+ (- (- 1.0 z) 1.0) 8.0))))))

Backtrace

match: no matching clause for 'realLC
match:error/opt/racket-7.8/collects/racket/match/runtime.rkt240
f387unknown
munge/data/pavpan/nightlies/herbie/egg-taylor/src/programs.rkt1492
for-loop/data/pavpan/nightlies/herbie/egg-taylor/src/programs.rkt16815
f387unknown
munge/data/pavpan/nightlies/herbie/egg-taylor/src/programs.rkt1492
for-loop/data/pavpan/nightlies/herbie/egg-taylor/src/programs.rkt16815
f387unknown
munge/data/pavpan/nightlies/herbie/egg-taylor/src/programs.rkt1492
for-loop/data/pavpan/nightlies/herbie/egg-taylor/src/programs.rkt16815
f387unknown
munge/data/pavpan/nightlies/herbie/egg-taylor/src/programs.rkt1492
for-loop/data/pavpan/nightlies/herbie/egg-taylor/src/programs.rkt16815
f387unknown
munge/data/pavpan/nightlies/herbie/egg-taylor/src/programs.rkt1492
for-loop/data/pavpan/nightlies/herbie/egg-taylor/src/programs.rkt16815
f387unknown
munge/data/pavpan/nightlies/herbie/egg-taylor/src/programs.rkt1492
for-loop/data/pavpan/nightlies/herbie/egg-taylor/src/programs.rkt16815
f387unknown
munge/data/pavpan/nightlies/herbie/egg-taylor/src/programs.rkt1492
for-loop/data/pavpan/nightlies/herbie/egg-taylor/src/programs.rkt16815
f387unknown
munge/data/pavpan/nightlies/herbie/egg-taylor/src/programs.rkt1492
for-loop/data/pavpan/nightlies/herbie/egg-taylor/src/programs.rkt1794
batch-eval-progs/data/pavpan/nightlies/herbie/egg-taylor/src/programs.rkt1250
batch-errors/data/pavpan/nightlies/herbie/egg-taylor/src/points.rkt1690
atab-add-altns/data/pavpan/nightlies/herbie/egg-taylor/src/core/alt-table.rkt1940
(unnamed)/opt/racket-7.8/collects/racket/contract/private/arrow-val-first.rkt48618
finalize-iter!/data/pavpan/nightlies/herbie/egg-taylor/src/mainloop.rkt2850
run-iter!/data/pavpan/nightlies/herbie/egg-taylor/src/mainloop.rkt3530
run-improve/data/pavpan/nightlies/herbie/egg-taylor/src/mainloop.rkt3720
(unnamed)/data/pavpan/nightlies/herbie/egg-taylor/src/sandbox.rkt726
run/opt/racket-7.8/share/pkgs/profile-lib/main.rkt392
profile-thunk/opt/racket-7.8/share/pkgs/profile-lib/main.rkt90
(unnamed)/opt/racket-7.8/collects/racket/engine.rkt4224

Reproduce

herbie shell --seed 2020273 
(FPCore (z)
  :name "Jmat.Real.gamma, branch z less than 0.5"
  :precision binary64
  :pre (<= z 0.5)
  (* (/ PI (sin (* PI z))) (* (* (* (sqrt (* PI 2.0)) (pow (+ (+ (- (- 1.0 z) 1.0) 7.0) 0.5) (+ (- (- 1.0 z) 1.0) 0.5))) (exp (- (+ (+ (- (- 1.0 z) 1.0) 7.0) 0.5)))) (+ (+ (+ (+ (+ (+ (+ (+ 0.9999999999998099 (/ 676.5203681218851 (+ (- (- 1.0 z) 1.0) 1.0))) (/ -1259.1392167224028 (+ (- (- 1.0 z) 1.0) 2.0))) (/ 771.3234287776531 (+ (- (- 1.0 z) 1.0) 3.0))) (/ -176.6150291621406 (+ (- (- 1.0 z) 1.0) 4.0))) (/ 12.507343278686905 (+ (- (- 1.0 z) 1.0) 5.0))) (/ -0.13857109526572012 (+ (- (- 1.0 z) 1.0) 6.0))) (/ 9.984369578019572e-06 (+ (- (- 1.0 z) 1.0) 7.0))) (/ 1.5056327351493116e-07 (+ (- (- 1.0 z) 1.0) 8.0))))))