Details

Time bar (total: 13.2s)

sample112.0ms

Algorithm
intervals
Results
33.0ms53×body1280valid
20.0ms136×body80valid
19.0ms259×body80nan
19.0ms43×body640valid
5.0ms16×body320valid
2.0msbody160valid

simplify8.0ms

Counts
1 → 1
Iterations
IterNodes
310
210
19
06

prune5.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 28.4b

localize23.0ms

Local error

Found 2 expressions with local error:

2.1b
(- (log (+ N 1)) (log N))
3.3b
(log (+ N 1))

rewrite26.0ms

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:
17.0ms
(- (log (+ N 1)) (log N))
7.0ms
(log (+ N 1))

series131.0ms

Counts
2 → 6
Calls
2 calls:
53.0ms
(- (log (+ N 1)) (log N))
78.0ms
(log (+ N 1))

simplify1.9s

Counts
49 → 49
Iterations
IterNodes
42935
31181
2416
1194
097

prune175.0ms

Pruning

2 alts after pruning (2 fresh and 0 done)

Merged error: 0.0b

localize9.0ms

Local error

Found 2 expressions with local error:

0.0b
(/ (+ 1 N) N)
2.5b
(log (/ (+ 1 N) N))

rewrite33.0ms

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:
26.0ms
(/ (+ 1 N) N)
5.0ms
(log (/ (+ 1 N) N))

series125.0ms

Counts
2 → 6
Calls
2 calls:
55.0ms
(/ (+ 1 N) N)
70.0ms
(log (/ (+ 1 N) N))

simplify2.8s

Counts
68 → 68
Iterations
IterNodes
44923
31427
2490
1222
0102

prune263.0ms

Pruning

2 alts after pruning (1 fresh and 1 done)

Merged error: 0.0b

localize18.0ms

Local error

Found 4 expressions with local error:

0.1b
(* N (* N N))
0.3b
(/ 1/2 (* N N))
0.5b
(/ 1/3 (* N (* N N)))
15.8b
(- (/ 1/2 (* N N)) (/ 1/3 (* N (* N N))))

rewrite99.0ms

Algorithm
rewrite-expression-head
Rules
23×add-cbrt-cube add-exp-log
18×pow1
14×add-sqr-sqrt
13×*-un-lft-identity
times-frac add-cube-cbrt
prod-exp cbrt-unprod
associate-/l* add-log-exp
cbrt-undiv div-exp pow-prod-up
insert-posit16
associate-*l* pow-prod-down
clear-num associate-/r* frac-2neg div-inv distribute-lft-out-- difference-of-squares
pow2 sub-neg pow-plus flip3-- diff-log cube-unmult associate-*r* pow-sqr *-commutative frac-sub flip-- unswap-sqr
Counts
4 → 89
Calls
4 calls:
15.0ms
(* N (* N N))
7.0ms
(/ 1/2 (* N N))
14.0ms
(/ 1/3 (* N (* N N)))
63.0ms
(- (/ 1/2 (* N N)) (/ 1/3 (* N (* N N))))

series296.0ms

Counts
4 → 12
Calls
4 calls:
54.0ms
(* N (* N N))
31.0ms
(/ 1/2 (* N N))
62.0ms
(/ 1/3 (* N (* N N)))
145.0ms
(- (/ 1/2 (* N N)) (/ 1/3 (* N (* N N))))

simplify3.2s

Counts
101 → 101
Iterations
IterNodes
35102
2989
1327
0137

prune325.0ms

Pruning

2 alts after pruning (0 fresh and 2 done)

Merged error: 0.0b

regimes40.0ms

Accuracy

100% (0.0b remaining)

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

bsearch72.0ms

Steps
ItersRangePoint
10
1.8230705747381016e-09
318690.85562629136
8386.707428118045

simplify5.0ms

Iterations
IterNodes
219
119
017

end0.0ms

sample3.5s

Algorithm
intervals
Results
1.1s1773×body1280valid
797.0ms4056×body80valid
548.0ms8060×body80nan
548.0ms1232×body640valid
192.0ms634×body320valid
86.0ms305×body160valid