Details

Time bar (total: 24.6s)

sample96.0ms

Algorithm
intervals
Results
33.0ms62×body1280valid
16.0ms42×body640valid
15.0ms243×body80nan
11.0ms123×body80valid
4.0ms19×body320valid
2.0ms10×body160valid

simplify9.0ms

Counts
1 → 1
Iterations
IterNodes
310
210
19
06

prune9.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 31.2b

localize44.0ms

Local error

Found 2 expressions with local error:

2.5b
(- (log (+ N 1)) (log N))
3.7b
(log (+ N 1))

rewrite20.0ms

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:
11.0ms
(- (log (+ N 1)) (log N))
8.0ms
(log (+ N 1))

series136.0ms

Counts
2 → 6
Calls
2 calls:
102.0ms
(- (log (+ N 1)) (log N))
34.0ms
(log (+ N 1))

simplify1.3s

Counts
49 → 49
Iterations
IterNodes
42935
31181
2416
1194
097

prune473.0ms

Pruning

3 alts after pruning (3 fresh and 0 done)

Merged error: 0.1b

localize19.0ms

Local error

Found 4 expressions with local error:

0.1b
(* N (* N N))
0.2b
(/ -1/2 (* N N))
0.6b
(/ 1/3 (* N (* N N)))
11.6b
(+ (+ (/ 1 N) (/ -1/2 (* N N))) (/ 1/3 (* N (* N N))))

rewrite186.0ms

Algorithm
rewrite-expression-head
Rules
23×add-cbrt-cube add-exp-log
18×pow1
16×*-un-lft-identity
10×add-sqr-sqrt
add-cube-cbrt add-log-exp
prod-exp cbrt-unprod
times-frac associate-/l*
cbrt-undiv div-exp pow-prod-up distribute-lft-out
frac-add insert-posit16
sum-log associate-*l* pow-prod-down div-inv
clear-num associate-/r* frac-2neg flip3-+ flip-+
pow2 +-commutative associate-+l+ pow-plus cube-unmult associate-*r* pow-sqr *-commutative unswap-sqr
Counts
4 → 91
Calls
4 calls:
27.0ms
(* N (* N N))
13.0ms
(/ -1/2 (* N N))
24.0ms
(/ 1/3 (* N (* N N)))
120.0ms
(+ (+ (/ 1 N) (/ -1/2 (* N N))) (/ 1/3 (* N (* N N))))

series213.0ms

Counts
4 → 12
Calls
4 calls:
45.0ms
(* N (* N N))
50.0ms
(/ -1/2 (* N N))
72.0ms
(/ 1/3 (* N (* N N)))
46.0ms
(+ (+ (/ 1 N) (/ -1/2 (* N N))) (/ 1/3 (* N (* N N))))

simplify5.5s

Counts
103 → 103
Iterations
IterNodes
37916
21481
1416
0161

prune811.0ms

Pruning

4 alts after pruning (3 fresh and 1 done)

Merged error: 0.1b

localize45.0ms

Local error

Found 4 expressions with local error:

11.6b
(+ (+ (/ 1 N) (/ -1/2 (* N N))) (/ 1/3 (* N (* N N))))
19.2b
(cbrt (+ (+ (/ 1 N) (/ -1/2 (* N N))) (/ 1/3 (* N (* N N)))))
19.2b
(cbrt (+ (+ (/ 1 N) (/ -1/2 (* N N))) (/ 1/3 (* N (* N N)))))
19.2b
(cbrt (+ (+ (/ 1 N) (/ -1/2 (* N N))) (/ 1/3 (* N (* N N)))))

rewrite337.0ms

Algorithm
rewrite-expression-head
Rules
35×*-un-lft-identity
20×distribute-lft-out
18×cbrt-prod
16×frac-add
15×cbrt-div
add-log-exp
flip3-+ flip-+
add-sqr-sqrt add-cube-cbrt
pow1 add-cbrt-cube add-exp-log insert-posit16 div-inv
sum-log pow1/3
+-commutative associate-+l+
Counts
4 → 80
Calls
4 calls:
107.0ms
(+ (+ (/ 1 N) (/ -1/2 (* N N))) (/ 1/3 (* N (* N N))))
64.0ms
(cbrt (+ (+ (/ 1 N) (/ -1/2 (* N N))) (/ 1/3 (* N (* N N)))))
97.0ms
(cbrt (+ (+ (/ 1 N) (/ -1/2 (* N N))) (/ 1/3 (* N (* N N)))))
66.0ms
(cbrt (+ (+ (/ 1 N) (/ -1/2 (* N N))) (/ 1/3 (* N (* N N)))))

series267.0ms

Counts
4 → 12
Calls
4 calls:
41.0ms
(+ (+ (/ 1 N) (/ -1/2 (* N N))) (/ 1/3 (* N (* N N))))
79.0ms
(cbrt (+ (+ (/ 1 N) (/ -1/2 (* N N))) (/ 1/3 (* N (* N N)))))
83.0ms
(cbrt (+ (+ (/ 1 N) (/ -1/2 (* N N))) (/ 1/3 (* N (* N N)))))
65.0ms
(cbrt (+ (+ (/ 1 N) (/ -1/2 (* N N))) (/ 1/3 (* N (* N N)))))

simplify7.0s

Counts
92 → 92
Iterations
IterNodes
38424
21399
1345
0138

prune1.0s

Pruning

4 alts after pruning (2 fresh and 2 done)

Merged error: 0.1b

localize12.0ms

Local error

Found 2 expressions with local error:

0.0b
(/ (+ N 1) N)
2.4b
(log (/ (+ N 1) N))

rewrite22.0ms

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:
18.0ms
(/ (+ N 1) N)
4.0ms
(log (/ (+ N 1) N))

series157.0ms

Counts
2 → 6
Calls
2 calls:
94.0ms
(/ (+ N 1) N)
63.0ms
(log (/ (+ N 1) N))

simplify3.3s

Counts
68 → 68
Iterations
IterNodes
45391
31555
2508
1225
0102

prune495.0ms

Pruning

4 alts after pruning (2 fresh and 2 done)

Merged error: 0.0b

regimes33.0ms

Accuracy

100% (0.0b remaining)

Error of 0.1b against oracle of 0.0b and baseline of 30.8b

bsearch56.0ms

Steps
ItersRangePoint
9
3862.7483140020904
25612678030.77693
6613.323166361232

simplify3.0ms

Iterations
IterNodes
223
123
019

end0.0ms

sample3.1s

Algorithm
intervals
Results
1.1s1779×body1280valid
588.0ms7976×body80nan
567.0ms1289×body640valid
383.0ms4061×body80valid
172.0ms573×body320valid
47.0ms298×body160valid