Please include this information when filing a bug report:
herbie shell --seed 2019067 +o rules:numerics
(FPCore (x y z a)
:name "(+ x (- (tan (+ y z)) (tan a)))"
:pre (and (or (== x 0) (<= 0.5884142 x 505.5909)) (or (<= -1.796658e+308 y -9.425585e-310) (<= 1.284938e-309 y 1.751224e+308)) (or (<= -1.776707e+308 z -8.599796e-310) (<= 3.293145e-311 z 1.725154e+308)) (or (<= -1.796658e+308 a -9.425585e-310) (<= 1.284938e-309 a 1.751224e+308)))
(+ x (- (tan (+ y z)) (tan a))))
| build-list: contract violation expected: exact-nonnegative-integer? given: '(0) | L | C | |
|---|---|---|---|
| build-list | /opt/racket-7.0/collects/racket/private/list.rkt | 296 | 2 |
| debug-print | /data/pavpan/nightlies/herbie/develop/src/debug.rkt | 107 | 0 |
| run-improve43 | /data/pavpan/nightlies/herbie/develop/src/mainloop.rkt | 346 | 0 |
| (unnamed) | /opt/racket-7.0/collects/racket/private/more-scheme.rkt | 261 | 28 |
| run | /opt/racket-7.0/share/pkgs/profile-lib/main.rkt | 39 | 2 |
| profile-thunk16 | /opt/racket-7.0/share/pkgs/profile-lib/main.rkt | 9 | 0 |
| (unnamed) | /opt/racket-7.0/collects/racket/private/more-scheme.rkt | 261 | 28 |