Error in 35.7s

Runtime

Time bar (total: 35.7s)Debug log

start423.0ms

Algorithm
intervals

setup16.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 24.7b

localize17.0ms

Local error

Found 3 expressions with local error:

2.0b
(- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))
1.5b
(pow (+ x 1) (/ 1 n))
0.8b
(pow x (/ 1 n))

rewrite15.0ms

Algorithm
rewrite-expression-head
Counts
3 → 44
Calls

3 calls. Slowest were:

12.0ms
(- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))
2.0ms
(pow (+ x 1) (/ 1 n))
1.0ms
(pow x (/ 1 n))

series344.0ms

Counts
3 → 9
Calls

3 calls. Slowest were:

200.0ms
(- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))
72.0ms
(pow x (/ 1 n))
71.0ms
(pow (+ x 1) (/ 1 n))

simplify1.7s

Counts
28 → 53
Calls

28 calls. Slowest were:

591.0ms
(- (+ (/ (log -1) n) (+ 1 (/ 1 (* x n)))) (/ (log (/ -1 x)) n))
311.0ms
(- (+ (/ (log -1) (* x (pow n 2))) (/ 1 (* x n))) (+ (* 1/2 (/ 1 (* (pow x 2) n))) (/ (log (/ -1 x)) (* x (pow n 2)))))
287.0ms
(- (/ 1 (* x n)) (+ (/ (log (/ 1 x)) (* x (pow n 2))) (* 1/2 (/ 1 (* (pow x 2) n)))))

prune710.0ms

Pruning

4 alts after pruning (4 fresh and 0 done)

Merged error: 17.9b

localize11.0ms

Local error

Found 4 expressions with local error:

2.0b
(- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))
2.0b
(log (exp (- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))))
1.5b
(pow (+ x 1) (/ 1 n))
0.8b
(pow x (/ 1 n))

rewrite33.0ms

Algorithm
rewrite-expression-head
Counts
4 → 65
Calls

4 calls. Slowest were:

16.0ms
(log (exp (- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))))
12.0ms
(- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))
1.0ms
(pow (+ x 1) (/ 1 n))

series534.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

200.0ms
(log (exp (- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))))
197.0ms
(- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))
69.0ms
(pow x (/ 1 n))

simplify2.6s

Counts
44 → 77
Calls

44 calls. Slowest were:

675.0ms
(- (+ (/ (log -1) n) (+ 1 (/ 1 (* x n)))) (/ (log (/ -1 x)) n))
396.0ms
(- (+ (/ (log -1) (* x (pow n 2))) (/ 1 (* x n))) (+ (* 1/2 (/ 1 (* (pow x 2) n))) (/ (log (/ -1 x)) (* x (pow n 2)))))
326.0ms
(- (+ (/ (log -1) (* x (pow n 2))) (/ 1 (* x n))) (+ (* 1/2 (/ 1 (* (pow x 2) n))) (/ (log (/ -1 x)) (* x (pow n 2)))))

prune1.4s

Pruning

5 alts after pruning (5 fresh and 0 done)

Merged error: 17.8b

localize25.0ms

Local error

Found 4 expressions with local error:

2.0b
(- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))
2.0b
(- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))
2.0b
(- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))
2.0b
(log (exp (- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))))

rewrite71.0ms

Algorithm
rewrite-expression-head
Counts
4 → 66
Calls

4 calls. Slowest were:

18.0ms
(- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))
18.0ms
(log (exp (- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))))
17.0ms
(- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))

series879.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

253.0ms
(- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))
221.0ms
(log (exp (- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))))
213.0ms
(- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))

simplify2.7s

Counts
43 → 78
Calls

43 calls. Slowest were:

372.0ms
(- (+ (/ (log -1) (* x (pow n 2))) (/ 1 (* x n))) (+ (* 1/2 (/ 1 (* (pow x 2) n))) (/ (log (/ -1 x)) (* x (pow n 2)))))
340.0ms
(- (+ (/ (log -1) (* x (pow n 2))) (/ 1 (* x n))) (+ (* 1/2 (/ 1 (* (pow x 2) n))) (/ (log (/ -1 x)) (* x (pow n 2)))))
322.0ms
(- (/ 1 (* x n)) (+ (/ (log (/ 1 x)) (* x (pow n 2))) (* 1/2 (/ 1 (* (pow x 2) n)))))

prune1.5s

Pruning

6 alts after pruning (5 fresh and 1 done)

Merged error: 17.8b

localize22.0ms

Local error

Found 4 expressions with local error:

2.1b
(log (* (cbrt (exp (- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n))))) (cbrt (exp (- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))))))
2.0b
(- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))
2.0b
(- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))
2.0b
(- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))

rewrite89.0ms

Algorithm
rewrite-expression-head
Counts
4 → 65
Calls

4 calls. Slowest were:

43.0ms
(log (* (cbrt (exp (- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n))))) (cbrt (exp (- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))))))
15.0ms
(- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))
15.0ms
(- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))

series1.0s

Counts
4 → 12
Calls

4 calls. Slowest were:

375.0ms
(log (* (cbrt (exp (- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n))))) (cbrt (exp (- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))))))
246.0ms
(- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))
214.0ms
(- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n)))

simplify2.9s

Counts
39 → 77
Calls

39 calls. Slowest were:

440.0ms
(- (+ (* 2/3 (/ (log -1) (* x (pow n 2)))) (* 2/3 (/ 1 (* x n)))) (+ (* 1/3 (/ 1 (* (pow x 2) n))) (* 2/3 (/ (log (/ -1 x)) (* x (pow n 2))))))
327.0ms
(- (/ 1 (* x n)) (+ (/ (log (/ 1 x)) (* x (pow n 2))) (* 1/2 (/ 1 (* (pow x 2) n)))))
321.0ms
(- (+ (/ (log -1) (* x (pow n 2))) (/ 1 (* x n))) (+ (* 1/2 (/ 1 (* (pow x 2) n))) (/ (log (/ -1 x)) (* x (pow n 2)))))

prune1.7s

Pruning

6 alts after pruning (6 fresh and 0 done)

Merged error: 17.8b

regimes500.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018359 
(FPCore (x n)
  :name "2nthrt (problem 3.4.6)"
  (- (pow (+ x 1) (/ 1 n)) (pow x (/ 1 n))))

Backtrace

partition: contract violation expected: list? given: 22.04647751553278 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