Details

Time bar (total: 16.2s)

sample89.0ms

Algorithm
intervals
Results
28.0ms54×body1280valid
17.0ms47×body640valid
16.0ms273×body80nan
12.0ms130×body80valid
3.0ms15×body320valid
1.0ms10×body160valid

simplify11.0ms

Calls
1 calls:
Slowest
11.0ms
(- (log (+ N 1)) (log N))

prune8.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 29.4b

localize26.0ms

Local error

Found 1 expressions with local error:

2.6b
(- (log1p N) (log N))

rewrite5.0ms

Algorithm
rewrite-expression-head
Rules
10×add-sqr-sqrt *-un-lft-identity
prod-diff
add-cube-cbrt
fma-neg
diff-log add-log-exp
expm1-log1p-u pow1 log1p-udef sub-neg flip3-- add-cbrt-cube add-exp-log insert-posit16 log1p-expm1-u flip-- distribute-lft-out-- difference-of-squares
Calls
1 calls:
Slowest
5.0ms
(- (log1p N) (log N))

series103.0ms

Calls
1 calls:
Slowest
103.0ms
(- (log1p N) (log N))

simplify1.3s

Calls
28 calls:
Slowest
211.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
187.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
161.0ms
(- N (+ (log N) (* 1/2 (pow N 2))))
74.0ms
(fma 1 (log1p N) (- (* (cbrt (log N)) (* (cbrt (log N)) (cbrt (log N))))))
63.0ms
(fma (* (cbrt (log1p N)) (cbrt (log1p N))) (cbrt (log1p N)) (- (* (cbrt (log N)) (* (cbrt (log N)) (cbrt (log N))))))

prune332.0ms

Pruning

3 alts after pruning (3 fresh and 0 done)

Merged error: 0b

localize15.0ms

Local error

Found 2 expressions with local error:

2.8b
(log (/ (+ 1 N) N))
0.0b
(/ (+ 1 N) N)

rewrite10.0ms

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt log-prod *-un-lft-identity add-cube-cbrt
pow1 add-exp-log associate-/l*
expm1-log1p-u add-cbrt-cube insert-posit16 log1p-expm1-u div-inv add-log-exp associate-/l/
log-div clear-num frac-2neg flip3-+ rem-log-exp log-pow flip-+
Calls
2 calls:
Slowest
6.0ms
(/ (+ 1 N) N)
3.0ms
(log (/ (+ 1 N) N))

series120.0ms

Calls
2 calls:
Slowest
63.0ms
(/ (+ 1 N) N)
57.0ms
(log (/ (+ 1 N) N))

simplify721.0ms

Calls
16 calls:
Slowest
215.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
176.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
171.0ms
(- N (+ (log N) (* 1/2 (pow N 2))))
27.0ms
(+ (pow 1 3) (pow N 3))
26.0ms
(- (* 1 1) (* N N))

prune278.0ms

Pruning

2 alts after pruning (2 fresh and 0 done)

Merged error: 0b

localize19.0ms

Local error

Found 4 expressions with local error:

13.4b
(log (/ (sqrt (+ 1 N)) (/ N (sqrt (+ 1 N)))))
0.2b
(/ N (sqrt (+ 1 N)))
0.0b
(/ (sqrt (+ 1 N)) (/ N (sqrt (+ 1 N))))
0.0b
(sqrt (+ 1 N))

rewrite27.0ms

Algorithm
rewrite-expression-head
Rules
72×times-frac
48×add-sqr-sqrt
47×*-un-lft-identity add-cube-cbrt
45×sqrt-prod
41×log-prod
32×sqrt-div
30×associate-/r/
16×flip3-+ flip-+ div-inv
12×associate-/r*
add-exp-log
add-cbrt-cube associate-/l*
pow1
expm1-log1p-u insert-posit16 log1p-expm1-u add-log-exp
clear-num frac-2neg div-exp rem-log-exp associate-/l/
cbrt-undiv rem-sqrt-square log-div pow1/2 log-pow
Calls
4 calls:
Slowest
9.0ms
(/ (sqrt (+ 1 N)) (/ N (sqrt (+ 1 N))))
4.0ms
(log (/ (sqrt (+ 1 N)) (/ N (sqrt (+ 1 N)))))
1.0ms
(/ N (sqrt (+ 1 N)))
1.0ms
(sqrt (+ 1 N))

series266.0ms

Calls
4 calls:
Slowest
102.0ms
(/ N (sqrt (+ 1 N)))
71.0ms
(log (/ (sqrt (+ 1 N)) (/ N (sqrt (+ 1 N)))))
69.0ms
(/ (sqrt (+ 1 N)) (/ N (sqrt (+ 1 N))))
23.0ms
(sqrt (+ 1 N))

simplify6.8s

Calls
158 calls:
Slowest
308.0ms
(- (+ N (* 3/8 (pow N 3))) (* 1/2 (pow N 2)))
250.0ms
(/ (* (* (sqrt (+ 1 N)) (sqrt (+ 1 N))) (sqrt (+ 1 N))) (* (* (/ N (sqrt (+ 1 N))) (/ N (sqrt (+ 1 N)))) (/ N (sqrt (+ 1 N)))))
210.0ms
(log (/ (* (cbrt (sqrt (+ 1 N))) (cbrt (sqrt (+ 1 N)))) (/ N (sqrt (- (* 1 1) (* N N))))))
196.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
183.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))

prune1.5s

Pruning

2 alts after pruning (1 fresh and 1 done)

Merged error: 0b

localize16.0ms

Local error

Found 3 expressions with local error:

0.3b
(/ 1/3 N)
0.1b
(/ 1 (* N N))
0.1b
(fma (/ 1 (* N N)) (+ (/ 1/3 N) -1/2) (/ 1 N))

rewrite2.0ms

Algorithm
rewrite-expression-head
Rules
pow1 add-exp-log
add-sqr-sqrt expm1-log1p-u *-un-lft-identity add-cbrt-cube add-cube-cbrt insert-posit16 log1p-expm1-u add-log-exp
clear-num frac-2neg div-inv pow-flip
pow2 rec-exp associate-/r* fma-udef inv-pow
Calls
3 calls:
Slowest
1.0ms
(/ 1 (* N N))
0.0ms
(/ 1/3 N)
0.0ms
(fma (/ 1 (* N N)) (+ (/ 1/3 N) -1/2) (/ 1 N))

series70.0ms

Calls
3 calls:
Slowest
29.0ms
(fma (/ 1 (* N N)) (+ (/ 1/3 N) -1/2) (/ 1 N))
22.0ms
(/ 1/3 N)
18.0ms
(/ 1 (* N N))

simplify666.0ms

Calls
11 calls:
Slowest
214.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
201.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
198.0ms
(- (+ (/ 1 N) (* 1/3 (/ 1 (pow N 3)))) (* 1/2 (/ 1 (pow N 2))))
13.0ms
(/ 1 (pow N 2))
11.0ms
(/ 1 (pow N 2))

prune368.0ms

Pruning

2 alts after pruning (0 fresh and 2 done)

Merged error: 0b

regimes27.0ms

Accuracy

100% (0.0b remaining)

Error of 0.1b against oracle of 0.1b and baseline of 29.8b

bsearch50.0ms

end0.0ms

sample3.3s

Algorithm
intervals
Results
964.0ms1702×body1280valid
946.0ms8046×body80nan
586.0ms1320×body640valid
419.0ms4043×body80valid
142.0ms616×body320valid
47.0ms319×body160valid