Details

Time bar (total: 13.3s)

sample102.0ms

Algorithm
intervals
Results
34.0ms63×body1280valid
17.0ms49×body640valid
15.0ms282×body80nan
10.0ms116×body80valid
4.0ms17×body320valid
2.0ms11×body160valid

simplify4.0ms

Counts
1 → 1
Iterations
IterNodes
done10
210
19
06

prune6.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 32.7b

localize32.0ms

Local error

Found 2 expressions with local error:

2.6b
(log (+ 1.0 N))
2.9b
(- (log (+ 1.0 N)) (log N))

rewrite16.0ms

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-+ distribute-lft-out add-log-exp
sub-neg flip3-- diff-log rem-log-exp flip-- difference-of-squares
Counts
2 → 41
Calls
2 calls:
4.0ms
(log (+ 1.0 N))
11.0ms
(- (log (+ 1.0 N)) (log N))

series182.0ms

Counts
2 → 6
Calls
2 calls:
47.0ms
(log (+ 1.0 N))
135.0ms
(- (log (+ 1.0 N)) (log N))

simplify1.3s

Counts
47 → 47
Iterations
IterNodes
done5001
32644
2631
1213
0100

prune158.0ms

Pruning

3 alts after pruning (3 fresh and 0 done)

Merged error: 0.0b

localize16.0ms

Local error

Found 4 expressions with local error:

0.0b
(+ (- (/ 0.3333333333333333 (pow N 3)) (/ (/ 0.5 N) N)) (/ 1.0 N))
0.1b
(/ (/ 0.5 N) N)
0.3b
(/ 0.3333333333333333 (pow N 3))
10.8b
(- (/ 0.3333333333333333 (pow N 3)) (/ (/ 0.5 N) N))

rewrite915.0ms

Algorithm
rewrite-expression-head
Rules
143×times-frac
125×add-sqr-sqrt
88×*-un-lft-identity
71×add-cube-cbrt
16×associate-/l*
15×associate-/r* unpow-prod-down cube-prod difference-of-squares
14×add-exp-log
11×add-cbrt-cube add-log-exp
sqr-pow
div-exp div-inv
cube-mult pow1 cbrt-undiv unpow3 distribute-lft-out--
frac-add distribute-lft-out
associate-+l+ clear-num sum-log sub-neg frac-2neg flip3-- diff-log frac-sub flip--
pow-to-exp +-commutative flip3-+ pow-exp associate-+l- flip-+ associate-/l/
Counts
4 → 186
Calls
4 calls:
765.0ms
(+ (- (/ 0.3333333333333333 (pow N 3)) (/ (/ 0.5 N) N)) (/ 1.0 N))
16.0ms
(/ (/ 0.5 N) N)
9.0ms
(/ 0.3333333333333333 (pow N 3))
118.0ms
(- (/ 0.3333333333333333 (pow N 3)) (/ (/ 0.5 N) N))

series315.0ms

Counts
4 → 12
Calls
4 calls:
35.0ms
(+ (- (/ 0.3333333333333333 (pow N 3)) (/ (/ 0.5 N) N)) (/ 1.0 N))
36.0ms
(/ (/ 0.5 N) N)
75.0ms
(/ 0.3333333333333333 (pow N 3))
169.0ms
(- (/ 0.3333333333333333 (pow N 3)) (/ (/ 0.5 N) N))

simplify2.8s

Counts
198 → 198
Iterations
IterNodes
done5001
24212
1786
0317

prune769.0ms

Pruning

4 alts after pruning (3 fresh and 1 done)

Merged error: 0.0b

localize37.0ms

Local error

Found 4 expressions with local error:

8.7b
(sqrt (+ (/ 1.0 N) (- (/ 0.3333333333333333 (pow N 3)) (/ 0.5 (* N N)))))
8.7b
(sqrt (+ (/ 1.0 N) (- (/ 0.3333333333333333 (pow N 3)) (/ 0.5 (* N N)))))
10.8b
(- (/ 0.3333333333333333 (pow N 3)) (/ 0.5 (* N N)))
10.8b
(- (/ 0.3333333333333333 (pow N 3)) (/ 0.5 (* N N)))

rewrite740.0ms

Algorithm
rewrite-expression-head
Rules
60×add-sqr-sqrt
30×times-frac
24×*-un-lft-identity
20×difference-of-squares
10×sqrt-div sqrt-prod
add-log-exp
pow1 frac-add add-cube-cbrt distribute-lft-out--
unpow-prod-down flip3-- add-cbrt-cube cube-prod add-exp-log frac-sub flip-- distribute-lft-out sqr-pow
cube-mult rem-sqrt-square sub-neg sqrt-pow1 flip3-+ pow1/2 diff-log flip-+
Counts
4 → 90
Calls
4 calls:
272.0ms
(sqrt (+ (/ 1.0 N) (- (/ 0.3333333333333333 (pow N 3)) (/ 0.5 (* N N)))))
309.0ms
(sqrt (+ (/ 1.0 N) (- (/ 0.3333333333333333 (pow N 3)) (/ 0.5 (* N N)))))
91.0ms
(- (/ 0.3333333333333333 (pow N 3)) (/ 0.5 (* N N)))
62.0ms
(- (/ 0.3333333333333333 (pow N 3)) (/ 0.5 (* N N)))

series428.0ms

Counts
4 → 12
Calls
4 calls:
73.0ms
(sqrt (+ (/ 1.0 N) (- (/ 0.3333333333333333 (pow N 3)) (/ 0.5 (* N N)))))
75.0ms
(sqrt (+ (/ 1.0 N) (- (/ 0.3333333333333333 (pow N 3)) (/ 0.5 (* N N)))))
144.0ms
(- (/ 0.3333333333333333 (pow N 3)) (/ 0.5 (* N N)))
136.0ms
(- (/ 0.3333333333333333 (pow N 3)) (/ 0.5 (* N N)))

simplify900.0ms

Counts
102 → 102
Iterations
IterNodes
done5000
21387
1343
0138

prune670.0ms

Pruning

4 alts after pruning (2 fresh and 2 done)

Merged error: 0.0b

localize9.0ms

Local error

Found 2 expressions with local error:

0.0b
(/ (+ 1.0 N) N)
3.3b
(log (/ (+ 1.0 N) N))

rewrite21.0ms

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 div-inv add-log-exp associate-/l/
cbrt-undiv log-div clear-num frac-2neg flip3-+ log-pow flip-+
Counts
2 → 60
Calls
2 calls:
14.0ms
(/ (+ 1.0 N) N)
5.0ms
(log (/ (+ 1.0 N) N))

series203.0ms

Counts
2 → 6
Calls
2 calls:
72.0ms
(/ (+ 1.0 N) N)
131.0ms
(log (/ (+ 1.0 N) N))

simplify550.0ms

Counts
66 → 66
Iterations
IterNodes
done5001
21011
1243
0107

prune230.0ms

Pruning

5 alts after pruning (2 fresh and 3 done)

Merged error: 0.0b

regimes38.0ms

Accuracy

99.5% (0.2b remaining)

Error of 0.2b against oracle of 0.0b and baseline of 31.9b

bsearch31.0ms

Steps
ItersRangePoint
8
2205.5689030668646
18639768.73979092
4798.860931730866

simplify2.0ms

Iterations
IterNodes
done26
126
023

end0.0ms

sample2.9s

Algorithm
intervals
Results
815.0ms1710×body1280valid
776.0ms8079×body80nan
357.0ms4111×body80valid
314.0ms1245×body640valid
177.0ms659×body320valid
28.0ms275×body160valid