Test:

Numeric.SpecFunctions:incompleteBetaWorker from math-functions-0.1.5.2

Logs:

Debug output, Profiling report

Bits:

384 bits

vector-ref: contract violation expected: exact-nonnegative-integer? given: 0.0 argument position: 2nd other arguments...: '#(0)

1. #f in /home/ztatlock/herbie/src/core/taylor.rkt:255:8
2. #f in /home/ztatlock/herbie/src/core/taylor.rkt:42:15
3. hash-ref! in /usr/share/racket/collects/racket/private/more-scheme.rkt:373:13
4. #f in /home/ztatlock/herbie/src/core/taylor.rkt:63:15
5. hash-ref! in /usr/share/racket/collects/racket/private/more-scheme.rkt:373:13
6. #f in /home/ztatlock/herbie/src/core/taylor.rkt:63:15
7. hash-ref! in /usr/share/racket/collects/racket/private/more-scheme.rkt:373:13
8. loop in /home/ztatlock/herbie/src/core/taylor.rkt:82:4
9. approximate9 in /home/ztatlock/herbie/src/core/taylor.rkt:11:0
10. location-do in /home/ztatlock/herbie/src/programs.rkt:129:0
11. for-loop in /home/ztatlock/herbie/src/glue.rkt:144:2
12. taylor-alt in /home/ztatlock/herbie/src/glue.rkt:142:0
13. append-map in /usr/share/racket/collects/racket/list.rkt:565:2
14. for-loop in /home/ztatlock/herbie/src/glue.rkt:119:17
15. post-process in /home/ztatlock/herbie/src/glue.rkt:95:0
16. finalize-table! in /home/ztatlock/herbie/src/mainloop.rkt:264:0
17. run-improve58 in /home/ztatlock/herbie/src/mainloop.rkt:242:0
18. #f in /usr/share/racket/collects/racket/private/more-scheme.rkt:261:28
19. run in /usr/share/racket/pkgs/profile-lib/main.rkt:31:2
20. profile-thunk14 in /usr/share/racket/pkgs/profile-lib/main.rkt:9:0
21. #f in /usr/share/racket/collects/racket/private/more-scheme.rkt:261:28

Please report this bug!