\[\left(-x \cdot \frac{1}{\tan B}\right) + \frac{F}{\sin B} \cdot {\left(\left(F \cdot F + 2\right) + 2 \cdot x\right)}^{\left(-\frac{1}{2}\right)}\]

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2020128 
(FPCore (F B x)
  :name "VandenBroeck and Keller, Equation (23)"
  :precision binary64
  (+ (- (* x (/ 1.0 (tan B)))) (* (/ F (sin B)) (pow (+ (+ (* F F) 2.0) (* 2.0 x)) (- (/ 1.0 2.0))))))

Backtrace

random-bits: contract violation expected: Positive-Integer given: 0LC
random-ranges/data/pavpan/nightlies/herbie/separate-biginterval/src/common.rkt1390
sample-multi-bounded/data/pavpan/nightlies/herbie/separate-biginterval/src/points.rkt140
(unnamed)/data/pavpan/nightlies/herbie/separate-biginterval/src/points.rkt1276
prepare-points-intervals/data/pavpan/nightlies/herbie/separate-biginterval/src/points.rkt1340
pred/data/pavpan/nightlies/herbie/separate-biginterval/src/core/regimes.rkt2004
for-loop/data/pavpan/nightlies/herbie/separate-biginterval/src/core/regimes.rkt2309
sindices->spoints/data/pavpan/nightlies/herbie/separate-biginterval/src/core/regimes.rkt1900
f37unknown
get-final-combination/data/pavpan/nightlies/herbie/separate-biginterval/src/mainloop.rkt3900
.../more-scheme.rkt:261:28unknown
run/opt/racket-7.5/share/pkgs/profile-lib/main.rkt392
profile-thunk16/opt/racket-7.5/share/pkgs/profile-lib/main.rkt90
(unnamed)/opt/racket-7.5/collects/racket/private/more-scheme.rkt26128

Reproduce

herbie shell --seed 2020128 
(FPCore (F B x)
  :name "VandenBroeck and Keller, Equation (23)"
  :precision binary64
  (+ (- (* x (/ 1.0 (tan B)))) (* (/ F (sin B)) (pow (+ (+ (* F F) 2.0) (* 2.0 x)) (- (/ 1.0 2.0))))))