Error in 4.8s

Runtime

Time bar (total: 4.8s)Debug logProfile

Please include this information when filing a bug report:

herbie shell --seed '#(1070991898 1055468627 4280279443 640792587 928206309 3646738750)' 
(FPCore (x)
  :name "arccos"
  (* 2 (atan (sqrt (/ (- 1 x) (+ 1 x))))))

Backtrace

atan: given value does not fit primitive C type C type: _double given value: 0+nan.0iLC
(unnamed)/usr/share/racket/collects/racket/private/kw.rkt44414
(unnamed)/data/pavpan/nightlies/herbie/fix-simplify-bug/src/programs.rkt1544
for-loop/data/pavpan/nightlies/herbie/fix-simplify-bug/src/points.rkt2214
errors/data/pavpan/nightlies/herbie/fix-simplify-bug/src/points.rkt2180
best-and-tied-at-points/data/pavpan/nightlies/herbie/fix-simplify-bug/src/core/alt-table.rkt1220
atab-add-altn/data/pavpan/nightlies/herbie/fix-simplify-bug/src/core/alt-table.rkt2080
for-loop/data/pavpan/nightlies/herbie/fix-simplify-bug/src/core/alt-table.rkt512
(unnamed)/usr/share/racket/collects/racket/contract/private/arrow-val-first.rkt35718
finalize-iter!/data/pavpan/nightlies/herbie/fix-simplify-bug/src/mainloop.rkt1690
run-iter!/data/pavpan/nightlies/herbie/fix-simplify-bug/src/mainloop.rkt2150
for-loop/data/pavpan/nightlies/herbie/fix-simplify-bug/src/mainloop.rkt24910
run-improve50/data/pavpan/nightlies/herbie/fix-simplify-bug/src/mainloop.rkt2340
(unnamed)/usr/share/racket/collects/racket/private/more-scheme.rkt26128
run/usr/share/racket/pkgs/profile-lib/main.rkt392
profile-thunk16/usr/share/racket/pkgs/profile-lib/main.rkt90
(unnamed)/usr/share/racket/collects/racket/private/more-scheme.rkt26128