Details

Time bar (total: 9.5s)

sample19.0ms

Algorithm
intervals
Results
9.0ms256×body80valid

simplify243.0ms

Counts
1 → 1
Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
0919
11719
23519
36719
411119
515819
617319
717419
done17419

prune2.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 31.9b

localize9.0ms

Local error

Found 2 expressions with local error:

4.5b
(- (* x x) (* (* y 4.0) y))
31.3b
(/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y)))

rewrite42.0ms

Algorithm
rewrite-expression-head
Rules
10×add-sqr-sqrt add-cube-cbrt *-un-lft-identity
times-frac
add-exp-log add-cbrt-cube add-log-exp
associate-/r* associate-/l*
pow1 flip3-- associate-/r/ flip-- associate-/l/
cbrt-undiv sub-neg frac-2neg flip3-+ diff-log div-sub div-exp clear-num flip-+ div-inv
Counts
2 → 44
Calls
2 calls:
12.0ms
(- (* x x) (* (* y 4.0) y))
28.0ms
(/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y)))

series131.0ms

Counts
2 → 6
Calls
2 calls:
49.0ms
(- (* x x) (* (* y 4.0) y))
81.0ms
(/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y)))

simplify3.0s

Counts
50 → 50
Iterations

Useful iterations: done (3.0s)

IterNodesCost
0821196
12201174
27381060
327121056
done50001042

prune187.0ms

Pruning

4 alts after pruning (4 fresh and 0 done)

Merged error: 0.3b

localize1.0ms

rewrite0.0ms

Algorithm
rewrite-expression-head
Rules
Counts
0 → 0

series0.0ms

Counts
0 → 0

simplify0.0ms

Counts
0 → 0
Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
000
done00

prune10.0ms

Pruning

4 alts after pruning (3 fresh and 1 done)

Merged error: 0.3b

localize22.0ms

Local error

Found 3 expressions with local error:

0.0b
(- (/ (* x x) (+ (* x x) (* (* y 4.0) y))) (/ (* (* y 4.0) y) (+ (* x x) (* (* y 4.0) y))))
22.8b
(/ (* (* y 4.0) y) (+ (* x x) (* (* y 4.0) y)))
25.0b
(/ (* x x) (+ (* x x) (* (* y 4.0) y)))

rewrite158.0ms

Algorithm
rewrite-expression-head
Rules
17×add-exp-log add-cbrt-cube
11×add-sqr-sqrt
*-un-lft-identity
associate-/r/
add-cube-cbrt times-frac
associate-/r*
cbrt-undiv div-exp add-log-exp
flip3-+ prod-exp cbrt-unprod flip-+ div-inv
pow1 distribute-rgt-out--
frac-2neg clear-num associate-/l* difference-of-squares
sub-neg flip3-- diff-log frac-sub flip-- distribute-lft-out-- sub-div
Counts
3 → 68
Calls
3 calls:
97.0ms
(- (/ (* x x) (+ (* x x) (* (* y 4.0) y))) (/ (* (* y 4.0) y) (+ (* x x) (* (* y 4.0) y))))
28.0ms
(/ (* (* y 4.0) y) (+ (* x x) (* (* y 4.0) y)))
31.0ms
(/ (* x x) (+ (* x x) (* (* y 4.0) y)))

series268.0ms

Counts
3 → 9
Calls
3 calls:
116.0ms
(- (/ (* x x) (+ (* x x) (* (* y 4.0) y))) (/ (* (* y 4.0) y) (+ (* x x) (* (* y 4.0) y))))
84.0ms
(/ (* (* y 4.0) y) (+ (* x x) (* (* y 4.0) y)))
68.0ms
(/ (* x x) (+ (* x x) (* (* y 4.0) y)))

simplify1.6s

Counts
77 → 77
Iterations

Useful iterations: 2 (293.0ms)

IterNodesCost
01301924
13511812
213111590
done50001590

prune303.0ms

Pruning

3 alts after pruning (2 fresh and 1 done)

Merged error: 0.3b

localize30.0ms

Local error

Found 4 expressions with local error:

0.1b
(pow (/ (* (* y 4.0) y) (+ (* x x) (* (* y 4.0) y))) 3)
8.7b
(cbrt (pow (/ (* (* y 4.0) y) (+ (* x x) (* (* y 4.0) y))) 3))
22.8b
(/ (* (* y 4.0) y) (+ (* x x) (* (* y 4.0) y)))
25.0b
(/ (* x x) (+ (* x x) (* (* y 4.0) y)))

rewrite160.0ms

Algorithm
rewrite-expression-head
Rules
28×add-exp-log add-cbrt-cube
24×cbrt-prod
18×add-sqr-sqrt add-cube-cbrt unpow-prod-down *-un-lft-identity times-frac cube-prod
12×associate-/r/
cbrt-undiv div-exp
prod-exp cbrt-unprod
flip3-+ associate-/r* flip-+ div-inv
pow1
pow-exp add-log-exp rem-cube-cbrt
pow-unpow
cube-div cube-mult frac-2neg unpow3 clear-num associate-/l* sqr-pow
pow-to-exp cbrt-div pow-pow pow1/3 rem-cbrt-cube
Counts
4 → 124
Calls
4 calls:
54.0ms
(pow (/ (* (* y 4.0) y) (+ (* x x) (* (* y 4.0) y))) 3)
24.0ms
(cbrt (pow (/ (* (* y 4.0) y) (+ (* x x) (* (* y 4.0) y))) 3))
31.0ms
(/ (* (* y 4.0) y) (+ (* x x) (* (* y 4.0) y)))
42.0ms
(/ (* x x) (+ (* x x) (* (* y 4.0) y)))

series466.0ms

Counts
4 → 12
Calls
4 calls:
202.0ms
(pow (/ (* (* y 4.0) y) (+ (* x x) (* (* y 4.0) y))) 3)
89.0ms
(cbrt (pow (/ (* (* y 4.0) y) (+ (* x x) (* (* y 4.0) y))) 3))
83.0ms
(/ (* (* y 4.0) y) (+ (* x x) (* (* y 4.0) y)))
92.0ms
(/ (* x x) (+ (* x x) (* (* y 4.0) y)))

simplify1.2s

Counts
136 → 136
Iterations

Useful iterations: 2 (388.0ms)

IterNodesCost
01703242
14692789
219152507
done50002507

prune421.0ms

Pruning

3 alts after pruning (1 fresh and 2 done)

Merged error: 0.3b

regimes180.0ms

Accuracy

60.4% (12.4b remaining)

Error of 12.8b against oracle of 0.4b and baseline of 31.7b

bsearch106.0ms

Steps
ItersRangePoint
8
1.9328563387545914e+264
1.958651676891247e+268
1.0276101681725595e+266
8
2.3613467040659447e-173
6.170963443896032e-170
2.757556978790064e-173

simplify5.0ms

Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
02247
12747
done2747

end0.0ms

sample818.0ms

Algorithm
intervals
Results
544.0ms8000×body80valid