Details

Time bar (total: 13.6s)

sample76.0ms

Algorithm
intervals
Results
25.0ms57×body1280valid
13.0ms271×body80nan
11.0ms43×body640valid
9.0ms129×body80valid
3.0ms17×body320valid
1.0ms10×body160valid

simplify21.0ms

Counts
1 → 1
Calls
1 calls:
Slowest
20.0ms
(- (log (+ N 1)) (log N))

prune9.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 29.7b

localize27.0ms

Local error

Found 2 expressions with local error:

2.7b
(- (log (+ N 1)) (log N))
1.5b
(log (+ N 1))

rewrite46.0ms

Algorithm
rewrite-expression-head
Rules
13×*-un-lft-identity
11×log-prod
add-sqr-sqrt pow1
log-pow add-cube-cbrt
log-div associate--l+ distribute-lft-out--
add-exp-log associate--r+
associate--l- flip3-+ add-cbrt-cube flip-+ insert-posit16 distribute-lft-out add-log-exp
sub-neg flip3-- diff-log rem-log-exp flip-- difference-of-squares
Counts
2 → 43
Calls
2 calls:
Slowest
38.0ms
(- (log (+ N 1)) (log N))
6.0ms
(log (+ N 1))

series108.0ms

Counts
2 → 6
Calls
2 calls:
Slowest
67.0ms
(- (log (+ N 1)) (log N))
42.0ms
(log (+ N 1))

simplify1.6s

Counts
29 → 49
Calls
29 calls:
Slowest
392.0ms
(- (+ (/ 1 N) (log -1)) (+ (* 1/2 (/ 1 (pow N 2))) (log (/ -1 N))))
189.0ms
(- (+ N (* 1/3 (pow N 3))) (* 1/2 (pow N 2)))
187.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
176.0ms
(- (/ 1 N) (+ (* 1/2 (/ 1 (pow N 2))) (log (/ 1 N))))
159.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))

prune443.0ms

Pruning

4 alts after pruning (4 fresh and 0 done)

Merged error: 0.1b

localize12.0ms

Local error

Found 2 expressions with local error:

2.9b
(log (/ (+ N 1) N))
0.0b
(/ (+ N 1) N)

rewrite32.0ms

Algorithm
rewrite-expression-head
Rules
33×*-un-lft-identity
24×times-frac
19×add-sqr-sqrt add-cube-cbrt
16×log-prod
add-exp-log distribute-lft-out
add-cbrt-cube associate-/l*
pow1 associate-/r*
div-exp rem-log-exp insert-posit16 div-inv add-log-exp associate-/l/
cbrt-undiv log-div clear-num frac-2neg flip3-+ log-pow flip-+
Counts
2 → 62
Calls
2 calls:
Slowest
27.0ms
(/ (+ N 1) N)
4.0ms
(log (/ (+ N 1) N))

series120.0ms

Counts
2 → 6
Calls
2 calls:
Slowest
72.0ms
(/ (+ N 1) N)
48.0ms
(log (/ (+ N 1) N))

simplify1.9s

Counts
57 → 68
Calls
57 calls:
Slowest
305.0ms
(/ (* (* (+ N 1) (+ N 1)) (+ N 1)) (* (* N N) N))
209.0ms
(- (+ (* 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))))
145.0ms
(log (/ (* (cbrt (+ N 1)) (cbrt (+ N 1))) (* (cbrt N) (cbrt N))))
122.0ms
(- N (+ (log N) (* 1/2 (pow N 2))))

prune474.0ms

Pruning

3 alts after pruning (3 fresh and 0 done)

Merged error: 0.0b

localize9.0ms

Local error

Found 1 expressions with local error:

2.9b
(log (+ (/ 1 N) 1))

rewrite7.0ms

Algorithm
rewrite-expression-head
Rules
log-prod *-un-lft-identity
add-sqr-sqrt pow1 log-div add-exp-log add-cube-cbrt distribute-lft-out
flip3-+ add-cbrt-cube rem-log-exp log-pow flip-+ insert-posit16 div-inv add-log-exp
Counts
1 → 17
Calls
1 calls:
Slowest
6.0ms
(log (+ (/ 1 N) 1))

series35.0ms

Counts
1 → 3
Calls
1 calls:
Slowest
35.0ms
(log (+ (/ 1 N) 1))

simplify984.0ms

Counts
11 → 20
Calls
11 calls:
Slowest
345.0ms
(log (+ (pow (/ 1 N) 3) (pow 1 3)))
198.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
186.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
110.0ms
(- N (+ (log N) (* 1/2 (pow N 2))))
78.0ms
(log (- (* (/ 1 N) (/ 1 N)) (* 1 1)))

prune115.0ms

Pruning

3 alts after pruning (2 fresh and 1 done)

Merged error: 0.0b

localize16.0ms

Local error

Found 4 expressions with local error:

2.9b
(log (sqrt (/ (+ N 1) N)))
2.9b
(log (sqrt (/ (+ N 1) N)))
0.1b
(sqrt (/ (+ N 1) N))
0.1b
(sqrt (/ (+ N 1) N))

rewrite41.0ms

Algorithm
rewrite-expression-head
Rules
64×sqrt-prod
62×*-un-lft-identity
50×times-frac
44×add-sqr-sqrt
38×log-prod add-cube-cbrt
12×distribute-lft-out
10×pow1
add-exp-log log-pow
rem-sqrt-square sqrt-pow1 add-cbrt-cube pow1/2 sqrt-div insert-posit16 div-inv add-log-exp
log-div rem-log-exp
Counts
4 → 122
Calls
4 calls:
Slowest
14.0ms
(sqrt (/ (+ N 1) N))
10.0ms
(sqrt (/ (+ N 1) N))
7.0ms
(log (sqrt (/ (+ N 1) N)))
6.0ms
(log (sqrt (/ (+ N 1) N)))

series293.0ms

Counts
4 → 12
Calls
4 calls:
Slowest
87.0ms
(log (sqrt (/ (+ N 1) N)))
85.0ms
(log (sqrt (/ (+ N 1) N)))
66.0ms
(sqrt (/ (+ N 1) N))
54.0ms
(sqrt (/ (+ N 1) N))

simplify2.8s

Counts
96 → 134
Calls
96 calls:
Slowest
277.0ms
(- (+ (* 1/6 (/ 1 (pow N 3))) (* 1/2 (/ 1 N))) (* 1/4 (/ 1 (pow N 2))))
217.0ms
(- (+ (* 1/6 (/ 1 (pow N 3))) (* 1/2 (/ 1 N))) (* 1/4 (/ 1 (pow N 2))))
195.0ms
(- (+ (* 1/6 (/ 1 (pow N 3))) (* 1/2 (/ 1 N))) (* 1/4 (/ 1 (pow N 2))))
188.0ms
(- (+ (* 1/6 (/ 1 (pow N 3))) (* 1/2 (/ 1 N))) (* 1/4 (/ 1 (pow N 2))))
155.0ms
(- (+ (* 1/2 (/ 1 N)) 1) (* 1/8 (/ 1 (pow N 2))))

prune1.3s

Pruning

4 alts after pruning (2 fresh and 2 done)

Merged error: 0.0b

regimes55.0ms

Accuracy

100% (0.0b remaining)

Error of 0.1b against oracle of 0.1b and baseline of 29.5b

bsearch48.0ms

end0.0ms

sample3.1s

Algorithm
intervals
Results
1.0s1759×body1280valid
742.0ms8063×body80nan
485.0ms1258×body640valid
421.0ms4058×body80valid
144.0ms596×body320valid
90.0ms329×body160valid