Error in 12.0s

Runtime

Time bar (total: 12.0s)Debug logProfile

start64.0ms

Algorithm
intervals

setup13.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 16.1b

localize12.0ms

Local error

Found 2 expressions with local error:

3.2b
(- (/ 1 (+ x 1)) (/ 1 x))
0.0b
(/ 1 (+ x 1))

rewrite8.0ms

Algorithm
rewrite-expression-head
Counts
2 → 36
Calls

2 calls. Slowest were:

6.0ms
(- (/ 1 (+ x 1)) (/ 1 x))
2.0ms
(/ 1 (+ x 1))

series41.0ms

Counts
2 → 6
Calls

2 calls. Slowest were:

24.0ms
(/ 1 (+ x 1))
18.0ms
(- (/ 1 (+ x 1)) (/ 1 x))

simplify392.0ms

Counts
21 → 42
Calls

21 calls. Slowest were:

75.0ms
(- (/ 1 (pow x 3)) (+ (/ 1 (pow x 4)) (/ 1 (pow x 2))))
48.0ms
(- (+ (/ 1 (pow x 3)) (/ 1 x)) (/ 1 (pow x 2)))
44.0ms
(- (/ 1 (pow x 3)) (+ (/ 1 (pow x 4)) (/ 1 (pow x 2))))

prune398.0ms

Pruning

2 alts after pruning (1 fresh and 1 done)

Merged error: 0.2b

localize6.0ms

Local error

Found 2 expressions with local error:

0.2b
(/ -1 (* (+ x 1) x))
0.0b
(* (+ x 1) x)

rewrite4.0ms

Algorithm
rewrite-expression-head
Counts
2 → 26
Calls

2 calls. Slowest were:

3.0ms
(* (+ x 1) x)
1.0ms
(/ -1 (* (+ x 1) x))

series33.0ms

Counts
2 → 6
Calls

2 calls. Slowest were:

21.0ms
(* (+ x 1) x)
11.0ms
(/ -1 (* (+ x 1) x))

simplify309.0ms

Counts
12 → 32
Calls

12 calls. Slowest were:

70.0ms
(* (- (* x x) (* 1 1)) x)
63.0ms
(- (/ 1 (pow x 3)) (+ (/ 1 (pow x 4)) (/ 1 (pow x 2))))
53.0ms
(- (/ 1 (pow x 3)) (+ (/ 1 (pow x 4)) (/ 1 (pow x 2))))

prune294.0ms

Pruning

5 alts after pruning (4 fresh and 1 done)

Merged error: 0.0b

localize16.0ms

Local error

Found 2 expressions with local error:

0.1b
(/ (/ -1 (+ x 1)) x)
0.0b
(/ -1 (+ x 1))

rewrite7.0ms

Algorithm
rewrite-expression-head
Counts
2 → 32
Calls

2 calls. Slowest were:

5.0ms
(/ (/ -1 (+ x 1)) x)
1.0ms
(/ -1 (+ x 1))

series26.0ms

Counts
2 → 6
Calls

2 calls. Slowest were:

15.0ms
(/ (/ -1 (+ x 1)) x)
11.0ms
(/ -1 (+ x 1))

simplify398.0ms

Counts
15 → 38
Calls

15 calls. Slowest were:

76.0ms
(- (/ 1 (pow x 3)) (+ (/ 1 (pow x 4)) (/ 1 (pow x 2))))
57.0ms
(- (/ 1 (pow x 3)) (+ (/ 1 (pow x 4)) (/ 1 (pow x 2))))
55.0ms
(/ -1 (- (* x x) (* 1 1)))

prune372.0ms

Pruning

5 alts after pruning (3 fresh and 2 done)

Merged error: 0b

localize26.0ms

Local error

Found 4 expressions with local error:

0.4b
(cbrt (/ -1 (+ x 1)))
0.4b
(cbrt (/ -1 (+ x 1)))
0.4b
(cbrt (/ -1 (+ x 1)))
0.3b
(* (cbrt (/ -1 (+ x 1))) (cbrt (/ -1 (+ x 1))))

rewrite15.0ms

Algorithm
rewrite-expression-head
Counts
4 → 82
Calls

4 calls. Slowest were:

10.0ms
(* (cbrt (/ -1 (+ x 1))) (cbrt (/ -1 (+ x 1))))
1.0ms
(cbrt (/ -1 (+ x 1)))
1.0ms
(cbrt (/ -1 (+ x 1)))

series345.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

90.0ms
(* (cbrt (/ -1 (+ x 1))) (cbrt (/ -1 (+ x 1))))
88.0ms
(cbrt (/ -1 (+ x 1)))
87.0ms
(cbrt (/ -1 (+ x 1)))

simplify3.7s

Counts
63 → 94
Calls

63 calls. Slowest were:

381.0ms
(- (+ (* (pow (/ 1 (pow x 2)) 1/3) (pow (cbrt -1) 2)) (* 5/9 (* (pow (/ 1 (pow x 8)) 1/3) (pow (cbrt -1) 2)))) (* 2/3 (* (pow (/ 1 (pow x 5)) 1/3) (pow (cbrt -1) 2))))
377.0ms
(- (+ (* 2/9 (* (pow x 2) (cbrt -1))) (cbrt -1)) (* 1/3 (* x (cbrt -1))))
348.0ms
(- (+ (* (pow (/ 1 (pow x 2)) 1/3) (pow (cbrt -1) 2)) (* 5/9 (* (pow (/ 1 (pow x 8)) 1/3) (pow (cbrt -1) 2)))) (* 2/3 (* (pow (/ 1 (pow x 5)) 1/3) (pow (cbrt -1) 2))))

prune1.1s

Pruning

5 alts after pruning (2 fresh and 3 done)

Merged error: 0b

regimes36.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018357 
(FPCore (x)
  :name "2frac (problem 3.3.1)"
  (- (/ 1 (+ x 1)) (/ 1 x)))

Backtrace

partition: contract violation expected: list? given: 0.0725 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