\[\log \left(N + 1\right) - \log N\]
\log \left(N + 1\right) - \log N
double code(double N) {
	return ((double) (((double) log(((double) (N + 1.0)))) - ((double) log(N))));
}

Reproduce

Please include this information when filing a bug report:

herbie shell --seed 2020169 
(FPCore (N)
  :name "2log (problem 3.3.6)"
  :precision binary64
  (- (log (+ N 1.0)) (log N)))

Backtrace

match-define: no matching clause for '(== branch290 6823.35180176559)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 (N)
  :name "2log (problem 3.3.6)"
  :precision binary64
  (- (log (+ N 1.0)) (log N)))