Exception for math.cube on complex, real part

Math

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Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2020231 
(FPCore (x.re x.im)
  :name "math.cube on complex, real part"
  :precision binary64

  :herbie-target
  (+ (* (* x.re x.re) (- x.re x.im)) (* (* x.re x.im) (- x.re (* 3.0 x.im))))

  (- (* (- (* x.re x.re) (* x.im x.im)) x.re) (* (+ (* x.re x.im) (* x.im x.re)) x.im)))

Backtrace

hash-ref: no value found for key key: 'x.re		L	C
table-ref	/data/pavpan/nightlies/herbie/scaleup-plugins/src/common.rkt	32	0
f297	unknown
munge	/data/pavpan/nightlies/herbie/scaleup-plugins/src/programs.rkt	142	2
for-loop	/data/pavpan/nightlies/herbie/scaleup-plugins/src/programs.rkt	161	15
f297	unknown
munge	/data/pavpan/nightlies/herbie/scaleup-plugins/src/programs.rkt	142	2
for-loop	/data/pavpan/nightlies/herbie/scaleup-plugins/src/programs.rkt	161	15
f297	unknown
munge	/data/pavpan/nightlies/herbie/scaleup-plugins/src/programs.rkt	142	2
for-loop	/data/pavpan/nightlies/herbie/scaleup-plugins/src/programs.rkt	172	4
batch-eval-progs	/data/pavpan/nightlies/herbie/scaleup-plugins/src/programs.rkt	112	0
batch-errors	/data/pavpan/nightlies/herbie/scaleup-plugins/src/points.rkt	169	0
atab-add-altns	/data/pavpan/nightlies/herbie/scaleup-plugins/src/core/alt-table.rkt	194	0
(unnamed)	/opt/racket-7.5/collects/racket/contract/private/arrow-val-first.rkt	486	18
finalize-iter!	/data/pavpan/nightlies/herbie/scaleup-plugins/src/mainloop.rkt	281	0
run-improve41	/data/pavpan/nightlies/herbie/scaleup-plugins/src/mainloop.rkt	368	0
.../more-scheme.rkt:261:28	unknown
run	/opt/racket-7.5/share/pkgs/profile-lib/main.rkt	39	2
profile-thunk16	/opt/racket-7.5/share/pkgs/profile-lib/main.rkt	9	0
(unnamed)	/opt/racket-7.5/collects/racket/private/more-scheme.rkt	261	28

Reproduce

herbie shell --seed 2020231 
(FPCore (x.re x.im)
  :name "math.cube on complex, real part"
  :precision binary64

  :herbie-target
  (+ (* (* x.re x.re) (- x.re x.im)) (* (* x.re x.im) (- x.re (* 3.0 x.im))))

  (- (* (- (* x.re x.re) (* x.im x.im)) x.re) (* (+ (* x.re x.im) (* x.im x.re)) x.im)))