Details

Time bar (total: 14.5s)

sample92.0ms

Algorithm
intervals
Results
29.0ms57×body1280valid
22.0ms271×body80nan
14.0ms43×body640valid
11.0ms129×body80valid
4.0ms17×body320valid
1.0ms10×body160valid

simplify11.0ms

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

prune5.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 29.7b

localize11.0ms

Local error

Found 2 expressions with local error:

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

rewrite12.0ms

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
8.0ms
(- (log (+ N 1)) (log N))
3.0ms
(log (+ N 1))

series125.0ms

Counts
2 → 6
Calls
2 calls:
Slowest
102.0ms
(- (log (+ N 1)) (log N))
23.0ms
(log (+ N 1))

simplify1.6s

Counts
29 → 49
Calls
29 calls:
Slowest
378.0ms
(- (+ (/ 1 N) (log -1)) (+ (* 1/2 (/ 1 (pow N 2))) (log (/ -1 N))))
186.0ms
(- (+ N (* 1/3 (pow N 3))) (* 1/2 (pow N 2)))
174.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
174.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
166.0ms
(- (/ 1 N) (+ (* 1/2 (/ 1 (pow N 2))) (log (/ 1 N))))

prune391.0ms

Pruning

4 alts after pruning (4 fresh and 0 done)

Merged error: 0.1b

localize8.0ms

Local error

Found 2 expressions with local error:

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

rewrite28.0ms

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
23.0ms
(/ (+ N 1) N)
4.0ms
(log (/ (+ N 1) N))

series134.0ms

Counts
2 → 6
Calls
2 calls:
Slowest
90.0ms
(/ (+ N 1) N)
44.0ms
(log (/ (+ N 1) N))

simplify2.0s

Counts
57 → 68
Calls
57 calls:
Slowest
341.0ms
(/ (* (* (+ N 1) (+ N 1)) (+ N 1)) (* (* N N) N))
224.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
222.0ms
(- (+ (* 1/3 (/ 1 (pow N 3))) (/ 1 N)) (* 1/2 (/ 1 (pow N 2))))
156.0ms
(log (/ (* (cbrt (+ N 1)) (cbrt (+ N 1))) (* (cbrt N) (cbrt N))))
100.0ms
(- N (+ (log N) (* 1/2 (pow N 2))))

prune432.0ms

Pruning

3 alts after pruning (3 fresh and 0 done)

Merged error: 0.0b

localize18.0ms

Local error

Found 1 expressions with local error:

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

rewrite12.0ms

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
12.0ms
(log (+ (/ 1 N) 1))

series41.0ms

Counts
1 → 3
Calls
1 calls:
Slowest
41.0ms
(log (+ (/ 1 N) 1))

simplify1.1s

Counts
11 → 20
Calls
11 calls:
Slowest
422.0ms
(log (+ (pow (/ 1 N) 3) (pow 1 3)))
206.0ms
(- (+ (* 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))))
133.0ms
(log (- (* (/ 1 N) (/ 1 N)) (* 1 1)))
126.0ms
(- N (+ (log N) (* 1/2 (pow N 2))))

prune117.0ms

Pruning

3 alts after pruning (2 fresh and 1 done)

Merged error: 0.0b

localize21.0ms

Local error

Found 4 expressions with local error:

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

rewrite66.0ms

Algorithm
rewrite-expression-head
Rules
22×*-un-lft-identity
20×sqrt-prod
16×log-prod
12×add-sqr-sqrt
10×pow1 add-cube-cbrt
sqrt-div distribute-lft-out
add-exp-log log-pow
log-div sqrt-pow1 flip3-+ add-cbrt-cube pow1/2 flip-+ insert-posit16 div-inv add-log-exp
rem-sqrt-square rem-log-exp
Counts
4 → 80
Calls
4 calls:
Slowest
21.0ms
(sqrt (+ (/ 1 N) 1))
18.0ms
(sqrt (+ (/ 1 N) 1))
13.0ms
(log (sqrt (+ (/ 1 N) 1)))
12.0ms
(log (sqrt (+ (/ 1 N) 1)))

series172.0ms

Counts
4 → 12
Calls
4 calls:
Slowest
70.0ms
(log (sqrt (+ (/ 1 N) 1)))
62.0ms
(log (sqrt (+ (/ 1 N) 1)))
22.0ms
(sqrt (+ (/ 1 N) 1))
18.0ms
(sqrt (+ (/ 1 N) 1))

simplify4.0s

Counts
54 → 92
Calls
54 calls:
Slowest
772.0ms
(sqrt (+ (pow (/ 1 N) 3) (pow 1 3)))
458.0ms
(log (sqrt (+ (pow (/ 1 N) 3) (pow 1 3))))
338.0ms
(sqrt (+ (pow (/ 1 N) 3) (pow 1 3)))
316.0ms
(log (sqrt (+ (pow (/ 1 N) 3) (pow 1 3))))
223.0ms
(- (+ (* 1/6 (/ 1 (pow N 3))) (* 1/2 (/ 1 N))) (* 1/4 (/ 1 (pow N 2))))

prune746.0ms

Pruning

4 alts after pruning (2 fresh and 2 done)

Merged error: 0.0b

regimes37.0ms

Accuracy

100% (0.0b remaining)

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

bsearch48.0ms

end0.0ms

sample3.2s

Algorithm
intervals
Results
1.0s1759×body1280valid
674.0ms8063×body80nan
541.0ms1258×body640valid
425.0ms4058×body80valid
188.0ms596×body320valid
57.0ms329×body160valid