Error in 6.5s

Runtime

Time bar (total: 6.5s)Debug log

start33.0ms

Algorithm
intervals

setup9.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 14.5b

localize20.0ms

Local error

Found 1 expressions with local error:

14.5b
(/ x (+ (* x x) 1))

rewrite3.0ms

Algorithm
rewrite-expression-head
Counts
1 → 15
Calls

1 calls. Slowest were:

3.0ms
(/ x (+ (* x x) 1))

series20.0ms

Counts
1 → 3
Calls

1 calls. Slowest were:

20.0ms
(/ x (+ (* x x) 1))

simplify406.0ms

Counts
8 → 18
Calls

8 calls. Slowest were:

220.0ms
(+ (* (* x x) (* x x)) (- (* 1 1) (* (* x x) 1)))
53.0ms
(- (+ (/ 1 (pow x 5)) (/ 1 x)) (/ 1 (pow x 3)))
49.0ms
(- (+ (/ 1 (pow x 5)) (/ 1 x)) (/ 1 (pow x 3)))

prune156.0ms

Pruning

2 alts after pruning (1 fresh and 1 done)

Merged error: 0b

localize22.0ms

Local error

Found 4 expressions with local error:

18.5b
(- (+ (/ 1 (pow x 5)) (/ 1 x)) (/ 1 (pow x 3)))
0.2b
(/ 1 (pow x 3))
0.2b
(/ 1 (pow x 5))
0.0b
(+ (/ 1 (pow x 5)) (/ 1 x))

rewrite30.0ms

Algorithm
rewrite-expression-head
Counts
4 → 80
Calls

4 calls. Slowest were:

23.0ms
(- (+ (/ 1 (pow x 5)) (/ 1 x)) (/ 1 (pow x 3)))
4.0ms
(+ (/ 1 (pow x 5)) (/ 1 x))
1.0ms
(/ 1 (pow x 3))

series93.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

32.0ms
(+ (/ 1 (pow x 5)) (/ 1 x))
22.0ms
(- (+ (/ 1 (pow x 5)) (/ 1 x)) (/ 1 (pow x 3)))
21.0ms
(/ 1 (pow x 3))

simplify2.0s

Counts
49 → 92
Calls

49 calls. Slowest were:

337.0ms
(* (- (/ 1 (pow x 5)) (/ 1 x)) (pow x 3))
251.0ms
(- (* (+ (* 1 x) (* (pow x 5) 1)) (pow x 3)) (* (* (pow x 5) x) 1))
220.0ms
(- (* (+ (pow (/ 1 (pow x 5)) 3) (pow (/ 1 x) 3)) (pow x 3)) (* (+ (* (/ 1 (pow x 5)) (/ 1 (pow x 5))) (- (* (/ 1 x) (/ 1 x)) (* (/ 1 (pow x 5)) (/ 1 x)))) 1))

prune1.3s

Pruning

2 alts after pruning (0 fresh and 2 done)

Merged error: 0b

regimes82.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018359 
(FPCore (x)
  :name "x / (x^2 + 1)"

  :herbie-target
  (/ 1 (+ x (/ 1 x)))

  (/ x (+ (* x x) 1)))

Backtrace

partition: contract violation expected: list? given: 0.007375 argument position: 2nd other arguments...: #<procedure:ordinary-value?>LC
partition/home/p92/racket/collects/racket/list.rkt5550
errors-score/data/pavpan/nightlies/herbie/develop/src/points.rkt3220
for-loop/data/pavpan/nightlies/herbie/develop/src/sandbox.rkt7512
(unnamed)/home/p92/racket/collects/racket/private/more-scheme.rkt26128
run/home/p92/racket/share/pkgs/profile-lib/main.rkt392
profile-thunk16/home/p92/racket/share/pkgs/profile-lib/main.rkt90
(unnamed)/home/p92/racket/collects/racket/private/more-scheme.rkt26128