\[100 \cdot \frac{x - x}{x}\]
100 \cdot \frac{x - x}{x}
double f(double x) {
        double r38722097 = 100.0;
        double r38722098 = x;
        double r38722099 = r38722098 - r38722098;
        double r38722100 = r38722099 / r38722098;
        double r38722101 = r38722097 * r38722100;
        return r38722101;
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2019173 +o rules:numerics
(FPCore (x)
  :name "ReportTypes:explainFloat from gipeda-0.1.2.1"

  :herbie-target
  0.0

  (* 100.0 (/ (- x x) x)))

Backtrace

hash-ref: no value found for key key: #<enode 7(7)>LC
for-loop/data/pavpan/nightlies/herbie/various-cleanup/src/core/simplify.rkt1972
extractor-extract/data/pavpan/nightlies/herbie/various-cleanup/src/core/simplify.rkt1960
for-loop/data/pavpan/nightlies/herbie/various-cleanup/src/core/simplify.rkt352
(unnamed)/data/pavpan/nightlies/herbie/various-cleanup/src/core/simplify.rkt260
simplify!/data/pavpan/nightlies/herbie/various-cleanup/src/mainloop.rkt2170
run-improve43/data/pavpan/nightlies/herbie/various-cleanup/src/mainloop.rkt3390
(unnamed)/opt/racket-7.0/collects/racket/private/more-scheme.rkt26128
run/opt/racket-7.0/share/pkgs/profile-lib/main.rkt392
profile-thunk16/opt/racket-7.0/share/pkgs/profile-lib/main.rkt90
(unnamed)/opt/racket-7.0/collects/racket/private/more-scheme.rkt26128