Error in 6.0s

Runtime

Time bar (total: 6.0s)Debug logProfile

start29.0ms

Algorithm
intervals

setup27.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 14.3b

localize16.0ms

Local error

Found 1 expressions with local error:

14.3b
(/ x (+ (* x x) 1))

rewrite3.0ms

Algorithm
rewrite-expression-head
Counts
1 → 15
Calls

1 calls. Slowest were:

2.0ms
(/ x (+ (* x x) 1))

series25.0ms

Counts
1 → 3
Calls

1 calls. Slowest were:

25.0ms
(/ x (+ (* x x) 1))

simplify418.0ms

Counts
8 → 18
Calls

8 calls. Slowest were:

257.0ms
(+ (* (* x x) (* x x)) (- (* 1 1) (* (* x x) 1)))
50.0ms
(- (+ (/ 1 (pow x 5)) (/ 1 x)) (/ 1 (pow x 3)))
44.0ms
(- (+ x (pow x 5)) (pow x 3))

prune154.0ms

Pruning

2 alts after pruning (1 fresh and 1 done)

Merged error: 0b

localize38.0ms

Local error

Found 3 expressions with local error:

18.7b
(- (+ (/ 1 (pow x 5)) (/ 1 x)) (/ 1 (pow x 3)))
0.5b
(/ 1 (pow x 3))
0.4b
(/ 1 (pow x 5))

rewrite41.0ms

Algorithm
rewrite-expression-head
Counts
3 → 64
Calls

3 calls. Slowest were:

39.0ms
(- (+ (/ 1 (pow x 5)) (/ 1 x)) (/ 1 (pow x 3)))
1.0ms
(/ 1 (pow x 3))
1.0ms
(/ 1 (pow x 5))

series49.0ms

Counts
3 → 9
Calls

3 calls. Slowest were:

17.0ms
(/ 1 (pow x 5))
16.0ms
(- (+ (/ 1 (pow x 5)) (/ 1 x)) (/ 1 (pow x 3)))
16.0ms
(/ 1 (pow x 3))

simplify2.2s

Counts
39 → 73
Calls

39 calls. Slowest were:

357.0ms
(* (- (/ 1 (pow x 5)) (/ 1 x)) (pow x 3))
270.0ms
(- (* (+ (* 1 x) (* (pow x 5) 1)) (pow x 3)) (* (* (pow x 5) x) 1))
269.0ms
(- (* (- (* (/ 1 (pow x 5)) (/ 1 (pow x 5))) (* (/ 1 x) (/ 1 x))) (pow x 3)) (* (- (/ 1 (pow x 5)) (/ 1 x)) 1))

prune926.0ms

Pruning

2 alts after pruning (0 fresh and 2 done)

Merged error: 0b

regimes85.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018357 
(FPCore (x)
  :name "x / (x^2 + 1)"

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

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

Backtrace

partition: contract violation expected: list? given: 0.009625 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