Details

Time bar (total: 13.4s)

sample50.0ms

Algorithm
intervals
Results
15.0ms54×body1280valid
8.0ms253×body80nan
7.0ms142×body80valid
6.0ms35×body640valid
2.0ms14×body320valid
1.0ms11×body160valid

simplify3.0ms

Counts
1 → 1
Iterations
IterNodes
done10
210
19
06

prune7.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 26.8b

localize10.0ms

Local error

Found 2 expressions with local error:

2.7b
(- (log (+ 1.0 N)) (log N))
3.5b
(log (+ 1.0 N))

rewrite15.0ms

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:
10.0ms
(- (log (+ 1.0 N)) (log N))
4.0ms
(log (+ 1.0 N))

series179.0ms

Counts
2 → 6
Calls
2 calls:
121.0ms
(- (log (+ 1.0 N)) (log N))
57.0ms
(log (+ 1.0 N))

simplify1.3s

Counts
47 → 47
Iterations
IterNodes
done5000
32683
2637
1213
0100

prune232.0ms

Pruning

3 alts after pruning (3 fresh and 0 done)

Merged error: 0.1b

localize16.0ms

Local error

Found 2 expressions with local error:

0.0b
(/ (+ N 1.0) N)
2.5b
(log (/ (+ N 1.0) N))

rewrite43.0ms

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:
30.0ms
(/ (+ N 1.0) N)
9.0ms
(log (/ (+ N 1.0) N))

series163.0ms

Counts
2 → 6
Calls
2 calls:
51.0ms
(/ (+ N 1.0) N)
112.0ms
(log (/ (+ N 1.0) N))

simplify611.0ms

Counts
66 → 66
Iterations
IterNodes
done5000
21007
1243
0108

prune294.0ms

Pruning

5 alts after pruning (4 fresh and 1 done)

Merged error: 0.1b

localize24.0ms

Local error

Found 4 expressions with local error:

0.5b
(cbrt N)
0.5b
(cbrt N)
2.6b
(log (/ (cbrt (+ 1.0 N)) (cbrt N)))
2.6b
(log (/ (cbrt (+ 1.0 N)) (cbrt N)))

rewrite37.0ms

Algorithm
rewrite-expression-head
Rules
96×cbrt-prod
92×log-prod
84×*-un-lft-identity times-frac
60×add-sqr-sqrt add-cube-cbrt
12×distribute-lft-out
10×add-exp-log
pow1
add-cbrt-cube rem-log-exp add-log-exp
log-div pow1/3 div-exp log-pow div-inv
Counts
4 → 136
Calls
4 calls:
1.0ms
(cbrt N)
5.0ms
(cbrt N)
12.0ms
(log (/ (cbrt (+ 1.0 N)) (cbrt N)))
7.0ms
(log (/ (cbrt (+ 1.0 N)) (cbrt N)))

series1.1s

Counts
4 → 12
Calls
4 calls:
229.0ms
(cbrt N)
255.0ms
(cbrt N)
299.0ms
(log (/ (cbrt (+ 1.0 N)) (cbrt N)))
301.0ms
(log (/ (cbrt (+ 1.0 N)) (cbrt N)))

simplify1.5s

Counts
148 → 148
Iterations
IterNodes
done5000
34310
2997
1345
0179

prune854.0ms

Pruning

5 alts after pruning (4 fresh and 1 done)

Merged error: 0.1b

localize91.0ms

Local error

Found 4 expressions with local error:

0.5b
(cbrt N)
2.6b
(log (/ (cbrt (+ 1.0 N)) (cbrt N)))
2.7b
(log (cbrt (/ (cbrt (+ N 1.0)) (cbrt N))))
2.7b
(log (cbrt (/ (cbrt (+ N 1.0)) (cbrt N))))

rewrite38.0ms

Algorithm
rewrite-expression-head
Rules
230×cbrt-prod
144×log-prod
126×times-frac
124×*-un-lft-identity
88×add-sqr-sqrt add-cube-cbrt
18×distribute-lft-out
add-exp-log
pow1
log-pow
add-cbrt-cube rem-log-exp add-log-exp
log-div pow1/3 div-inv
cbrt-div
div-exp
Counts
4 → 188
Calls
4 calls:
1.0ms
(cbrt N)
7.0ms
(log (/ (cbrt (+ 1.0 N)) (cbrt N)))
8.0ms
(log (cbrt (/ (cbrt (+ N 1.0)) (cbrt N))))
8.0ms
(log (cbrt (/ (cbrt (+ N 1.0)) (cbrt N))))

series1.4s

Counts
4 → 12
Calls
4 calls:
316.0ms
(cbrt N)
324.0ms
(log (/ (cbrt (+ 1.0 N)) (cbrt N)))
377.0ms
(log (cbrt (/ (cbrt (+ N 1.0)) (cbrt N))))
415.0ms
(log (cbrt (/ (cbrt (+ N 1.0)) (cbrt N))))

simplify884.0ms

Counts
200 → 200
Iterations
IterNodes
done5001
21580
1600
0367

prune1.4s

Pruning

5 alts after pruning (4 fresh and 1 done)

Merged error: 0.0b

regimes107.0ms

Accuracy

99.9% (0.0b remaining)

Error of 0.1b against oracle of 0.0b and baseline of 29.5b

bsearch52.0ms

Steps
ItersRangePoint
7
5787.9300826946865
261980.93535209994
15002.089224442483

simplify4.0ms

Iterations
IterNodes
done20
120
018

end0.0ms

sample3.0s

Algorithm
intervals
Results
827.0ms1783×body1280valid
559.0ms557×body320valid
495.0ms1303×body640valid
416.0ms7946×body80nan
307.0ms4055×body80valid
35.0ms302×body160valid