Details

Time bar (total: 16.7s)

sample92.0ms

Algorithm
intervals
Results
30.0ms64×body1280valid
15.0ms334×body80nan
10.0ms130×body80valid
9.0ms33×body640valid
3.0ms16×body320valid
2.0ms13×body160valid

simplify4.0ms

Counts
1 → 1
Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
067
197
2107
done107

prune2.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 29.3b

localize7.0ms

Local error

Found 2 expressions with local error:

2.2b
(log (+ N 1.0))
3.5b
(- (log (+ N 1.0)) (log N))

rewrite21.0ms

Algorithm
rewrite-expression-head
Rules
13×*-un-lft-identity
11×log-prod
pow1 add-sqr-sqrt
add-cube-cbrt log-pow
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:
5.0ms
(log (+ N 1.0))
14.0ms
(- (log (+ N 1.0)) (log N))

series185.0ms

Counts
2 → 6
Calls
2 calls:
58.0ms
(log (+ N 1.0))
127.0ms
(- (log (+ N 1.0)) (log N))

simplify2.9s

Counts
47 → 47
Iterations

Useful iterations: done (2.9s)

IterNodesCost
0101510
1213488
2464445
31067443
42569438
done5000426

prune130.0ms

Pruning

3 alts after pruning (3 fresh and 0 done)

Merged error: 0.1b

localize9.0ms

Local error

Found 2 expressions with local error:

0.0b
(/ (+ N 1.0) N)
3.5b
(log (/ (+ N 1.0) 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 div-inv associate-/l/ add-log-exp
cbrt-undiv log-div frac-2neg flip3-+ clear-num log-pow flip-+
Counts
2 → 60
Calls
2 calls:
19.0ms
(/ (+ N 1.0) N)
6.0ms
(log (/ (+ N 1.0) N))

series172.0ms

Counts
2 → 6
Calls
2 calls:
54.0ms
(/ (+ N 1.0) N)
118.0ms
(log (/ (+ N 1.0) N))

simplify3.5s

Counts
66 → 66
Iterations

Useful iterations: 4 (1.9s)

IterNodesCost
0108723
1232690
2583637
31417624
43874622
done5001622

prune155.0ms

Pruning

4 alts after pruning (3 fresh and 1 done)

Merged error: 0.1b

localize17.0ms

Local error

Found 4 expressions with local error:

0.3b
(cbrt (log (/ (+ N 1.0) N)))
3.5b
(log (/ (+ N 1.0) N))
3.5b
(log (/ (+ N 1.0) N))
3.5b
(log (/ (+ N 1.0) N))

rewrite43.0ms

Algorithm
rewrite-expression-head
Rules
48×log-prod
47×*-un-lft-identity
36×times-frac
29×add-sqr-sqrt add-cube-cbrt
13×add-exp-log
distribute-lft-out
pow1
rem-log-exp
cbrt-prod log-pow add-cbrt-cube add-log-exp
log-div div-exp div-inv
pow1/3
Counts
4 → 93
Calls
4 calls:
3.0ms
(cbrt (log (/ (+ N 1.0) N)))
11.0ms
(log (/ (+ N 1.0) N))
11.0ms
(log (/ (+ N 1.0) N))
12.0ms
(log (/ (+ N 1.0) N))

series704.0ms

Counts
4 → 12
Calls
4 calls:
334.0ms
(cbrt (log (/ (+ N 1.0) N)))
117.0ms
(log (/ (+ N 1.0) N))
133.0ms
(log (/ (+ N 1.0) N))
119.0ms
(log (/ (+ N 1.0) N))

simplify1.6s

Counts
105 → 105
Iterations

Useful iterations: done (1.6s)

IterNodesCost
01491470
13351402
28131301
324301211
done50011184

prune373.0ms

Pruning

5 alts after pruning (4 fresh and 1 done)

Merged error: 0.1b

localize25.0ms

Local error

Found 4 expressions with local error:

3.5b
(log (/ (+ N 1.0) N))
3.5b
(log (/ (+ N 1.0) N))
3.5b
(log (/ (+ N 1.0) N))
3.5b
(log (/ (+ N 1.0) N))

rewrite53.0ms

Algorithm
rewrite-expression-head
Rules
64×log-prod
60×*-un-lft-identity
48×times-frac
36×add-sqr-sqrt add-cube-cbrt
16×add-exp-log
12×distribute-lft-out
pow1 rem-log-exp
log-div div-exp log-pow add-cbrt-cube div-inv add-log-exp
Counts
4 → 108
Calls
4 calls:
12.0ms
(log (/ (+ N 1.0) N))
13.0ms
(log (/ (+ N 1.0) N))
12.0ms
(log (/ (+ N 1.0) N))
11.0ms
(log (/ (+ N 1.0) N))

series480.0ms

Counts
4 → 12
Calls
4 calls:
93.0ms
(log (/ (+ N 1.0) N))
125.0ms
(log (/ (+ N 1.0) N))
138.0ms
(log (/ (+ N 1.0) N))
123.0ms
(log (/ (+ N 1.0) N))

simplify3.5s

Counts
120 → 120
Iterations

Useful iterations: done (3.5s)

IterNodesCost
0841524
11681452
23501336
37311284
416171276
535561252
done50011236

prune545.0ms

Pruning

5 alts after pruning (4 fresh and 1 done)

Merged error: 0.1b

regimes44.0ms

Accuracy

100% (0.0b remaining)

Error of 0.0b against oracle of 0.0b and baseline of 29.6b

bsearch34.0ms

Steps
ItersRangePoint
9
1640.3133596211642
526447839.8444867
9843.297794559383

simplify2.0ms

Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
01723
11923
done1923

end0.0ms

sample2.1s

Algorithm
intervals
Results
672.0ms1749×body1280valid
314.0ms1316×body640valid
303.0ms8104×body80nan
264.0ms4045×body80valid
94.0ms594×body320valid
29.0ms296×body160valid