Error in 8.6s

Runtime

Time bar (total: 8.6s)Debug logProfile

start161.0ms

Algorithm
intervals

setup23.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 41.0b

localize16.0ms

Local error

Found 2 expressions with local error:

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

rewrite10.0ms

Algorithm
rewrite-expression-head
Counts
2 → 29
Calls

2 calls. Slowest were:

6.0ms
(/ (- (exp x) 1) x)
3.0ms
(- (exp x) 1)

series40.0ms

Counts
2 → 6
Calls

2 calls. Slowest were:

28.0ms
(/ (- (exp x) 1) x)
12.0ms
(- (exp x) 1)

simplify368.0ms

Counts
13 → 35
Calls

13 calls. Slowest were:

111.0ms
(* -1 (/ (- 1 (exp x)) x))
102.0ms
(+ x (+ (* 1/6 (pow x 3)) (* 1/2 (pow x 2))))
41.0ms
(+ (* 1/2 x) (+ (* 1/6 (pow x 2)) 1))

prune278.0ms

Pruning

3 alts after pruning (3 fresh and 0 done)

Merged error: 0.0b

localize13.0ms

Local error

Found 1 expressions with local error:

0.2b
(* 1/6 (pow x 2))

rewrite1.0ms

Algorithm
rewrite-expression-head
Counts
1 → 12
Calls

1 calls. Slowest were:

1.0ms
(* 1/6 (pow x 2))

series14.0ms

Counts
1 → 3
Calls

1 calls. Slowest were:

14.0ms
(* 1/6 (pow x 2))

simplify15.0ms

Counts
6 → 15
Calls

6 calls. Slowest were:

4.0ms
(* 1/6 (pow x 2))
4.0ms
(* 1/6 (pow x 2))
4.0ms
(* 1/6 (pow x 2))

prune193.0ms

Pruning

3 alts after pruning (2 fresh and 1 done)

Merged error: 0.0b

localize7.0ms

Local error

Found 2 expressions with local error:

3.0b
(- (/ (exp x) x) (/ 1 x))
0.0b
(/ (exp x) x)

rewrite8.0ms

Algorithm
rewrite-expression-head
Counts
2 → 32
Calls

2 calls. Slowest were:

5.0ms
(- (/ (exp x) x) (/ 1 x))
3.0ms
(/ (exp x) x)

series48.0ms

Counts
2 → 6
Calls

2 calls. Slowest were:

30.0ms
(- (/ (exp x) x) (/ 1 x))
18.0ms
(/ (exp x) x)

simplify201.0ms

Counts
20 → 38
Calls

20 calls. Slowest were:

83.0ms
(* -1 (/ (- 1 (exp x)) x))
33.0ms
(+ (* 1/2 x) (+ (* 1/6 (pow x 2)) 1))
15.0ms
(/ (exp (/ (exp x) x)) (exp (/ 1 x)))

prune355.0ms

Pruning

3 alts after pruning (1 fresh and 2 done)

Merged error: 0.0b

localize16.0ms

Local error

Found 4 expressions with local error:

3.2b
(- (exp x) 1)
3.2b
(- (exp x) 1)
3.2b
(- (exp x) 1)
0.3b
(cbrt (/ (- (exp x) 1) x))

rewrite21.0ms

Algorithm
rewrite-expression-head
Counts
4 → 49
Calls

4 calls. Slowest were:

6.0ms
(- (exp x) 1)
6.0ms
(- (exp x) 1)
5.0ms
(- (exp x) 1)

series213.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

154.0ms
(cbrt (/ (- (exp x) 1) x))
22.0ms
(- (exp x) 1)
19.0ms
(- (exp x) 1)

simplify745.0ms

Counts
20 → 61
Calls

20 calls. Slowest were:

186.0ms
(* (exp (* 1/3 (+ (log (- (exp x) 1)) (log (/ -1 x))))) (cbrt -1))
127.0ms
(+ x (+ (* 1/6 (pow x 3)) (* 1/2 (pow x 2))))
115.0ms
(+ x (+ (* 1/6 (pow x 3)) (* 1/2 (pow x 2))))

prune566.0ms

Pruning

3 alts after pruning (1 fresh and 2 done)

Merged error: 0.0b

regimes38.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018357 
(FPCore (x)
  :name "Kahan's exp quotient"

  :herbie-target
  (if (and (< x 1) (> x -1)) (/ (- (exp x) 1) (log (exp x))) (/ (- (exp x) 1) x))

  (/ (- (exp x) 1) x))

Backtrace

partition: contract violation expected: list? given: 0.3089458095052811 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