ab-angle->ABCF B

Specification

?
\[\begin{array}{l} \\ \begin{array}{l} t_0 := \mathsf{PI}\left(\right) \cdot \frac{angle}{180}\\ \left(\left(2 \cdot \left({b}^{2} - {a}^{2}\right)\right) \cdot \sin t\_0\right) \cdot \cos t\_0 \end{array} \end{array} \]
(FPCore (a b angle)
 :precision binary64
 (let* ((t_0 (* (PI) (/ angle 180.0))))
   (* (* (* 2.0 (- (pow b 2.0) (pow a 2.0))) (sin t_0)) (cos t_0))))
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \mathsf{PI}\left(\right) \cdot \frac{angle}{180}\\
\left(\left(2 \cdot \left({b}^{2} - {a}^{2}\right)\right) \cdot \sin t\_0\right) \cdot \cos t\_0
\end{array}
\end{array}

Reproduce

?
herbie shell --seed 2024277 
(FPCore (a b angle)
  :name "ab-angle->ABCF B"
  :precision binary64
  (* (* (* 2.0 (- (pow b 2.0) (pow a 2.0))) (sin (* (PI) (/ angle 180.0)))) (cos (* (PI) (/ angle 180.0)))))

Please file a bug report with this information.

Backtrace

rival-apply: contract violation expected: (or/c ^TYPE? boolean?) given: 0 in: an element of the 2nd argument of (-> rival-machine? (vectorof (or/c ^TYPE? boolean?)) (vectorof any/c)) contract from: <pkgs>/rival/main.rkt blaming: <pkgs>/herbie/core/rival.rkt (assuming the contract is correct) at: <pkgs>/rival/main.rkt:95:24LC
raise-blame-error/usr/share/racket/collects/racket/contract/private/blame.rkt3460
loop.../private/map.rkt4019
vector-map/update/usr/share/racket/collects/racket/vector.rkt620
vector-map/usr/share/racket/collects/racket/vector.rkt1060
rival-apply/home/nightlies/.local/share/racket/8.10/pkgs/rival/eval/main.rkt650
(unnamed)/usr/share/racket/collects/racket/contract/private/arrow-val-first.rkt48618
(unnamed)/home/nightlies/herbie/zane-concrete-values/src/core/rival.rkt764
real-apply/home/nightlies/herbie/zane-concrete-values/src/core/rival.rkt670
(unnamed).../private/arrow-val-first.rkt48618
<eval-prog-real>/home/nightlies/herbie/zane-concrete-values/src/core/sampling.rkt1362
compute-local-errors/home/nightlies/herbie/zane-concrete-values/src/core/localize.rkt2160
actual-errors/home/nightlies/herbie/zane-concrete-values/src/core/explain.rkt350
generate-timelines/home/nightlies/herbie/zane-concrete-values/src/core/explain.rkt4980
explain!/home/nightlies/herbie/zane-concrete-values/src/core/mainloop.rkt3230
run-improve!/home/nightlies/herbie/zane-concrete-values/src/core/mainloop.rkt450
get-alternatives/report/home/nightlies/herbie/zane-concrete-values/src/api/sandbox.rkt1860
(unnamed)/home/nightlies/herbie/zane-concrete-values/src/api/sandbox.rkt2826
(unnamed)/usr/share/racket/pkgs/profile-lib/main.rkt4010
profile-thunk/usr/share/racket/pkgs/profile-lib/main.rkt90
(unnamed)/usr/share/racket/collects/racket/engine.rkt4224