Details

Time bar (total: 16.3s)

sample122.0ms

Algorithm
intervals
Results
40.0ms57×body1280valid
22.0ms271×body80nan
21.0ms43×body640valid
16.0ms129×body80valid
5.0ms17×body320valid
2.0ms10×body160valid

simplify10.0ms

Counts
1 → 1
Calls
1 calls:
Slowest
10.0ms
(- (log (+ N 1)) (log N))

prune6.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 29.7b

localize9.0ms

Local error

Found 1 expressions with local error:

2.7b
(- (log1p N) (log N))

rewrite26.0ms

Algorithm
rewrite-expression-head
Rules
13×*-un-lft-identity
12×add-sqr-sqrt prod-diff
10×add-cube-cbrt
pow1
log-pow
log-prod fma-neg associate--r+
diff-log distribute-lft-out-- add-log-exp
expm1-log1p-u log1p-udef sub-neg flip3-- add-cbrt-cube add-exp-log insert-posit16 log1p-expm1-u flip-- difference-of-squares
Counts
1 → 37
Calls
1 calls:
Slowest
25.0ms
(- (log1p N) (log N))

series67.0ms

Counts
1 → 3
Calls
1 calls:
Slowest
67.0ms
(- (log1p N) (log N))

simplify2.2s

Counts
38 → 40
Calls
38 calls:
Slowest
184.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
175.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
173.0ms
(fma 1 (log1p N) (- (* (cbrt (log N)) (* (cbrt (log N)) (cbrt (log N))))))
166.0ms
(fma (* (cbrt (log1p N)) (cbrt (log1p N))) (cbrt (log1p N)) (- (* (cbrt (log N)) (* (cbrt (log N)) (cbrt (log N))))))
148.0ms
(fma (sqrt (log1p N)) (sqrt (log1p N)) (- (* (cbrt (log N)) (* (cbrt (log N)) (cbrt (log N))))))

prune314.0ms

Pruning

3 alts after pruning (3 fresh and 0 done)

Merged error: 0.1b

localize9.0ms

Local error

Found 2 expressions with local error:

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

rewrite17.0ms

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*
expm1-log1p-u div-exp rem-log-exp insert-posit16 log1p-expm1-u div-inv add-log-exp associate-/l/
cbrt-undiv log-div clear-num frac-2neg flip3-+ log-pow flip-+
Counts
2 → 66
Calls
2 calls:
Slowest
12.0ms
(/ (+ 1 N) N)
4.0ms
(log (/ (+ 1 N) N))

series115.0ms

Counts
2 → 6
Calls
2 calls:
Slowest
61.0ms
(log (/ (+ 1 N) N))
54.0ms
(/ (+ 1 N) N)

simplify1.9s

Counts
57 → 72
Calls
57 calls:
Slowest
306.0ms
(/ (* (* (+ 1 N) (+ 1 N)) (+ 1 N)) (* (* N N) N))
223.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
214.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
174.0ms
(- N (+ (log N) (* 1/2 (pow N 2))))
127.0ms
(log (/ (* (cbrt (+ 1 N)) (cbrt (+ 1 N))) (* (cbrt N) (cbrt N))))

prune504.0ms

Pruning

3 alts after pruning (3 fresh and 0 done)

Merged error: 0.0b

localize20.0ms

Local error

Found 4 expressions with local error:

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

rewrite42.0ms

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
expm1-log1p-u rem-sqrt-square sqrt-pow1 add-cbrt-cube pow1/2 sqrt-div insert-posit16 log1p-expm1-u div-inv add-log-exp
log-div rem-log-exp
Counts
4 → 130
Calls
4 calls:
Slowest
11.0ms
(sqrt (/ (+ 1 N) N))
11.0ms
(sqrt (/ (+ 1 N) N))
8.0ms
(log (sqrt (/ (+ 1 N) N)))
8.0ms
(log (sqrt (/ (+ 1 N) N)))

series310.0ms

Counts
4 → 12
Calls
4 calls:
Slowest
127.0ms
(log (sqrt (/ (+ 1 N) N)))
75.0ms
(log (sqrt (/ (+ 1 N) N)))
69.0ms
(sqrt (/ (+ 1 N) N))
39.0ms
(sqrt (/ (+ 1 N) N))

simplify2.9s

Counts
96 → 142
Calls
96 calls:
Slowest
245.0ms
(- (+ (* 1/6 (/ 1 (pow N 3))) (* 1/2 (/ 1 N))) (* 1/4 (/ 1 (pow N 2))))
228.0ms
(- (+ (* 1/6 (/ 1 (pow N 3))) (* 1/2 (/ 1 N))) (* 1/4 (/ 1 (pow N 2))))
228.0ms
(- (+ (* 1/6 (/ 1 (pow N 3))) (* 1/2 (/ 1 N))) (* 1/4 (/ 1 (pow N 2))))
213.0ms
(- (+ (* 1/6 (/ 1 (pow N 3))) (* 1/2 (/ 1 N))) (* 1/4 (/ 1 (pow N 2))))
143.0ms
(- (+ (* 1/2 (/ 1 N)) 1) (* 1/8 (/ 1 (pow N 2))))

prune1.4s

Pruning

4 alts after pruning (3 fresh and 1 done)

Merged error: 0.0b

localize19.0ms

Local error

Found 1 expressions with local error:

2.7b
(- (log1p N) (log N))

rewrite6.0ms

Algorithm
rewrite-expression-head
Rules
13×*-un-lft-identity
12×add-sqr-sqrt prod-diff
10×add-cube-cbrt
pow1
log-pow
log-prod fma-neg associate--r+
diff-log distribute-lft-out-- add-log-exp
expm1-log1p-u log1p-udef sub-neg flip3-- add-cbrt-cube add-exp-log insert-posit16 log1p-expm1-u flip-- difference-of-squares
Counts
1 → 37
Calls
1 calls:
Slowest
6.0ms
(- (log1p N) (log N))

series58.0ms

Counts
1 → 3
Calls
1 calls:
Slowest
58.0ms
(- (log1p N) (log N))

simplify2.3s

Counts
38 → 40
Calls
38 calls:
Slowest
212.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
210.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
191.0ms
(- N (+ (log N) (* 1/2 (pow N 2))))
186.0ms
(fma 1 (log1p N) (- (* (cbrt (log N)) (* (cbrt (log N)) (cbrt (log N))))))
183.0ms
(fma (sqrt (log1p N)) (sqrt (log1p N)) (- (* (cbrt (log N)) (* (cbrt (log N)) (cbrt (log N))))))

prune285.0ms

Pruning

4 alts after pruning (2 fresh and 2 done)

Merged error: 0.0b

regimes44.0ms

Accuracy

99.9% (0.0b remaining)

Error of 0.1b against oracle of 0.1b and baseline of 29.6b

bsearch42.0ms

end0.0ms

sample3.7s

Algorithm
intervals
Results
1.6s1759×body1280valid
626.0ms8063×body80nan
516.0ms1258×body640valid
440.0ms4058×body80valid
195.0ms596×body320valid
54.0ms329×body160valid