Error in 11.7s

Runtime

Time bar (total: 11.7s)Debug logProfile

start159.0ms

Algorithm
intervals

setup21.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 30.5b

localize9.0ms

Local error

Found 1 expressions with local error:

3.4b
(- (log1p N) (log N))

rewrite4.0ms

Algorithm
rewrite-expression-head
Counts
1 → 29
Calls

1 calls. Slowest were:

4.0ms
(- (log1p N) (log N))

series52.0ms

Counts
1 → 3
Calls

1 calls. Slowest were:

52.0ms
(- (log1p N) (log N))

simplify903.0ms

Counts
28 → 32
Calls

28 calls. Slowest were:

224.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
213.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
121.0ms
(- N (+ (log N) (* 1/2 (pow N 2))))

prune320.0ms

Pruning

2 alts after pruning (2 fresh and 0 done)

Merged error: 0.0b

localize20.0ms

Local error

Found 3 expressions with local error:

0.4b
(/ 1 (* N N))
0.4b
(/ 1/3 N)
0.1b
(fma (/ 1 (* N N)) (- (/ 1/3 N) 1/2) (/ 1 N))

rewrite2.0ms

Algorithm
rewrite-expression-head
Counts
3 → 39
Calls

3 calls. Slowest were:

1.0ms
(/ 1 (* N N))
0.0ms
(/ 1/3 N)
0.0ms
(fma (/ 1 (* N N)) (- (/ 1/3 N) 1/2) (/ 1 N))

series32.0ms

Counts
3 → 9
Calls

3 calls. Slowest were:

16.0ms
(fma (/ 1 (* N N)) (- (/ 1/3 N) 1/2) (/ 1 N))
9.0ms
(/ 1 (* N N))
7.0ms
(/ 1/3 N)

simplify566.0ms

Counts
11 → 48
Calls

11 calls. Slowest were:

234.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
184.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
119.0ms
(- (+ (/ 1 N) (* 1/3 (/ 1 (pow N 3)))) (* 1/2 (/ 1 (pow N 2))))

prune621.0ms

Pruning

4 alts after pruning (3 fresh and 1 done)

Merged error: 0.0b

localize8.0ms

Local error

Found 2 expressions with local error:

3.2b
(log (/ (+ 1 N) N))
0.0b
(/ (+ 1 N) N)

rewrite4.0ms

Algorithm
rewrite-expression-head
Counts
2 → 33
Calls

2 calls. Slowest were:

2.0ms
(/ (+ 1 N) N)
1.0ms
(log (/ (+ 1 N) N))

series84.0ms

Counts
2 → 6
Calls

2 calls. Slowest were:

48.0ms
(log (/ (+ 1 N) N))
35.0ms
(/ (+ 1 N) N)

simplify554.0ms

Counts
16 → 39
Calls

16 calls. Slowest were:

222.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
191.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
89.0ms
(- N (+ (log N) (* 1/2 (pow N 2))))

prune264.0ms

Pruning

4 alts after pruning (2 fresh and 2 done)

Merged error: 0.0b

localize16.0ms

Local error

Found 4 expressions with local error:

10.3b
(sqrt (fma (/ 1 (* N N)) (- (/ 1/3 N) 1/2) (/ 1 N)))
10.3b
(sqrt (fma (/ 1 (* N N)) (- (/ 1/3 N) 1/2) (/ 1 N)))
0.4b
(/ 1 (* N N))
0.4b
(/ 1 (* N N))

rewrite7.0ms

Algorithm
rewrite-expression-head
Counts
4 → 62
Calls

4 calls. Slowest were:

2.0ms
(sqrt (fma (/ 1 (* N N)) (- (/ 1/3 N) 1/2) (/ 1 N)))
2.0ms
(sqrt (fma (/ 1 (* N N)) (- (/ 1/3 N) 1/2) (/ 1 N)))
1.0ms
(/ 1 (* N N))

series79.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

33.0ms
(sqrt (fma (/ 1 (* N N)) (- (/ 1/3 N) 1/2) (/ 1 N)))
30.0ms
(sqrt (fma (/ 1 (* N N)) (- (/ 1/3 N) 1/2) (/ 1 N)))
8.0ms
(/ 1 (* N N))

simplify2.7s

Counts
24 → 74
Calls

24 calls. Slowest were:

525.0ms
(sqrt (fma (/ 1 (* N N)) (- (/ 1/3 N) 1/2) (/ 1 N)))
504.0ms
(sqrt (sqrt (fma (/ 1 (* N N)) (- (/ 1/3 N) 1/2) (/ 1 N))))
457.0ms
(sqrt (fma (/ 1 (* N N)) (- (/ 1/3 N) 1/2) (/ 1 N)))

prune1.1s

Pruning

4 alts after pruning (2 fresh and 2 done)

Merged error: 0b

regimes68.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018357 +o rules:numerics
(FPCore (N)
  :name "2log (problem 3.3.6)"
  (- (log (+ N 1)) (log N)))

Backtrace

partition: contract violation expected: list? given: 0.05312569858310301 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