Details

Time bar (total: 1.0s)

sample16.0ms

Algorithm
intervals
Results
7.0ms256×body80valid
2.0ms256×pre80true

simplify31.0ms

Algorithm
egg-herbie
Counts
1 → 1
Iterations

Useful iterations: 3 (29.0ms)

IterNodesCost
03112
116811
29659
350018

prune5.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 13.0b

localize8.0ms

Local error

Found 2 expressions with local error:

0.0b
(- (* (* 2.0 i) (* 2.0 i)) 1.0)
12.6b
(/ (* i i) (* (- (* (* 2.0 i) (* 2.0 i)) 1.0) (* 2.0 2.0)))

rewrite36.0ms

Algorithm
rewrite-expression-head
Rules
23×add-exp-log add-cbrt-cube
9×prod-exp cbrt-unprod
6×cbrt-undiv div-exp
4×add-log-exp
3×add-sqr-sqrt
2×pow1 add-cube-cbrt flip3-- *-un-lft-identity associate-*l/ associate-/r/ flip--
1×sub-neg frac-2neg times-frac diff-log clear-num associate-/r* div-inv associate-/l* difference-of-squares
Counts
2 → 40
Calls
2 calls:
11.0ms
(- (* (* 2.0 i) (* 2.0 i)) 1.0)
24.0ms
(/ (* i i) (* (- (* (* 2.0 i) (* 2.0 i)) 1.0) (* 2.0 2.0)))

series138.0ms

Counts
2 → 6
Calls
2 calls:
58.0ms
(- (* (* 2.0 i) (* 2.0 i)) 1.0)
80.0ms
(/ (* i i) (* (- (* (* 2.0 i) (* 2.0 i)) 1.0) (* 2.0 2.0)))

simplify43.0ms

Algorithm
egg-herbie
Counts
46 → 46
Iterations

Useful iterations: 1 (9.0ms)

IterNodesCost
0342496
11633364
25001364

prune76.0ms

Pruning

2 alts after pruning (1 fresh and 1 done)

Merged error: 0b

localize11.0ms

Local error

Found 2 expressions with local error:

0.1b
(/ 1 (pow i 4))
0.2b
(/ 1 (pow i 2))

rewrite12.0ms

Algorithm
rewrite-expression-head
Rules
45×times-frac
35×add-sqr-sqrt add-cube-cbrt *-un-lft-identity
24×unpow-prod-down
20×add-exp-log
15×associate-/r*
12×div-exp
8×sqr-pow
6×pow-to-exp rec-exp 1-exp pow-exp add-cbrt-cube associate-/l*
4×unpow2
2×pow1 cbrt-undiv pow-flip frac-2neg clear-num div-inv inv-pow add-log-exp
Counts
2 → 110
Calls
2 calls:
4.0ms
(/ 1 (pow i 4))
4.0ms
(/ 1 (pow i 2))

series46.0ms

Counts
2 → 6
Calls
2 calls:
26.0ms
(/ 1 (pow i 4))
20.0ms
(/ 1 (pow i 2))

simplify34.0ms

Algorithm
egg-herbie
Counts
116 → 116
Iterations

Useful iterations: 2 (26.0ms)

IterNodesCost
0265506
11039432
25001356

prune141.0ms

Pruning

2 alts after pruning (0 fresh and 2 done)

Merged error: 0b

regimes14.0ms

Accuracy

100% (0.0b remaining)

Error of 0.0b against oracle of 0.0b and baseline of 16.5b

bsearch55.0ms

Steps
ItersRangePoint
10
1.1984873775628255e-06
46727.744626936415
219.59142050633432

simplify1.0ms

Algorithm
egg-herbie
Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
03516
13516

end0.0ms

sample374.0ms

Algorithm
intervals
Results
223.0ms8000×body80valid
60.0ms8000×pre80true