Error in 4.0ms

Runtime

Please include this information when filing a bug report:

herbie shell --seed '#(1070960995 739739648 2531964651 3069671617 351857262 3877178482)' +o rules:numerics
(FPCore (x y z t a)
  :name "Numeric.SpecFunctions:logGammaL from math-functions-0.1.5.2"
  (+ (- (+ (log (+ x y)) (log z)) t) (* (- a 0.5) (log t))))

Backtrace

assert: (< 0 exacts-prec-idx (vector-length exacts-precs)) returned false!		L	C
dump-exacts-prec	/data/pavpan/nightlies/herbie/exacts-precision-steps/src/points.rkt	154	0
loop	/data/pavpan/nightlies/herbie/exacts-precision-steps/src/points.rkt	176	2
loop	/data/pavpan/nightlies/herbie/exacts-precision-steps/src/points.rkt	217	2
run-improve50	/data/pavpan/nightlies/herbie/exacts-precision-steps/src/mainloop.rkt	234	0
(unnamed)	/usr/share/racket/collects/racket/private/more-scheme.rkt	261	28
run	/usr/share/racket/pkgs/profile-lib/main.rkt	39	2
profile-thunk16	/usr/share/racket/pkgs/profile-lib/main.rkt	9	0
(unnamed)	/usr/share/racket/collects/racket/private/more-scheme.rkt	261	28