\[\frac{x - y}{z - y} \cdot t\]
\frac{x - y}{z - y} \cdot t
double code(double x, double y, double z, double t) {
	return ((double) (((double) (((double) (x - y)) / ((double) (z - y)))) * t));
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2020169 
(FPCore (x y z t)
  :name "Numeric.Signal.Multichannel:$cput from hsignal-0.2.7.1"
  :precision binary64

  :herbie-target
  (/ t (/ (- z y) (- x y)))

  (* (/ (- x y) (- z y)) t))

Backtrace

match-define: no matching clause for '(== branch1091 -9.340330850384629e-85)LC
match:error/opt/racket-7.5/collects/racket/match/runtime.rkt240
program-body/data/pavpan/nightlies/herbie/ival-find-range/src/programs.rkt250
(unnamed)/opt/racket-7.5/collects/racket/contract/private/arrow-higher-order.rkt37933
prepare-points/data/pavpan/nightlies/herbie/ival-find-range/src/points.rkt1300
pred/data/pavpan/nightlies/herbie/ival-find-range/src/core/regimes.rkt2044
.../more-scheme.rkt:261:28unknown
for-loop/data/pavpan/nightlies/herbie/ival-find-range/src/core/regimes.rkt2403
sindices->spoints/data/pavpan/nightlies/herbie/ival-find-range/src/core/regimes.rkt1940
f37unknown
get-final-combination/data/pavpan/nightlies/herbie/ival-find-range/src/mainloop.rkt3890
.../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 2020169 
(FPCore (x y z t)
  :name "Numeric.Signal.Multichannel:$cput from hsignal-0.2.7.1"
  :precision binary64

  :herbie-target
  (/ t (/ (- z y) (- x y)))

  (* (/ (- x y) (- z y)) t))