Details

Time bar (total: 2.8s)

sample152.0ms

Algorithm
intervals
sampling

Space saved by range analysis: 43.768318%

Space saved by search: 43.768318%

Guaranteed chance to sample good point: 98.831177%

Results
6.0ms40×body1280valid
6.0ms176×body80valid
4.0ms256×pre80true
3.0ms13×body640valid
2.0ms20×body320valid
0.0msbody160valid

simplify70.0ms

Algorithm
egg-herbie
Counts
1 → 1
Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
0206
1346
2526
3736
41236
51726
62246
72616
83236
94116
105326
116126
126546
136976
149226
159806
1610076
1710276
1810356
1910356

prune3.0ms

Pruning

2 alts after pruning (2 fresh and 0 done)

PrunedKeptTotal
New011
Fresh011
Picked000
Done000
Total022

Merged error: 18.8b

Counts
2 → 1

localize9.0ms

Local error

Found 2 expressions with local error:

0.0b
(/ (- beta alpha) (+ (+ alpha beta) 2.0))
1.8b
(+ (/ (- beta alpha) (+ (+ alpha beta) 2.0)) 1.0)

rewrite29.0ms

Algorithm
rewrite-expression-head
Rules
58×*-un-lft-identity
26×add-sqr-sqrt
25×times-frac
19×distribute-lft-out
14×add-cube-cbrt
distribute-lft-out-- difference-of-squares
associate-/r* associate-/l*
add-exp-log add-cbrt-cube add-log-exp
pow1 flip3-+ div-sub associate-/r/ flip-+ associate-/l/
cbrt-undiv +-commutative associate-+l- flip3-- frac-2neg div-exp clear-num sum-log flip-- div-inv
Counts
2 → 65
Calls
2 calls:
9.0ms
(/ (- beta alpha) (+ (+ alpha beta) 2.0))
18.0ms
(+ (/ (- beta alpha) (+ (+ alpha beta) 2.0)) 1.0)

series22.0ms

Counts
2 → 6
Calls
2 calls:
7.0ms
(/ (- beta alpha) (+ (+ alpha beta) 2.0))
14.0ms
(+ (/ (- beta alpha) (+ (+ alpha beta) 2.0)) 1.0)

simplify35.0ms

Algorithm
egg-herbie
Counts
71 → 71
Iterations

Useful iterations: 2 (28.0ms)

IterNodesCost
0320535
11022510
25001502

prune117.0ms

Filtered
46 candidates to 71 candidates (-54.3%)
Pruning

11 alts after pruning (11 fresh and 0 done)

PrunedKeptTotal
New601171
Fresh000
Picked101
Done000
Total611172

Merged error: 17.9b

Counts
72 → 11

localize9.0ms

Local error

Found 4 expressions with local error:

0.0b
(- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))
0.0b
(/ alpha (+ (+ alpha beta) 2.0))
0.0b
(/ beta (+ (+ alpha beta) 2.0))
1.8b
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

rewrite59.0ms

Algorithm
rewrite-expression-head
Rules
71×*-un-lft-identity
34×add-sqr-sqrt
32×times-frac
24×add-cube-cbrt distribute-lft-out
11×add-log-exp
10×associate-/r*
add-exp-log add-cbrt-cube
associate-/l*
pow1 diff-log associate-/r/ distribute-lft-out-- difference-of-squares
sub-neg flip3-- flip--
cbrt-undiv frac-2neg flip3-+ div-exp clear-num frac-sub flip-+ div-inv associate--r+
associate--r-
Counts
4 → 111
Calls
4 calls:
28.0ms
(- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))
8.0ms
(/ alpha (+ (+ alpha beta) 2.0))
7.0ms
(/ beta (+ (+ alpha beta) 2.0))
13.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

series36.0ms

Counts
4 → 12
Calls
4 calls:
12.0ms
(- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))
6.0ms
(/ alpha (+ (+ alpha beta) 2.0))
6.0ms
(/ beta (+ (+ alpha beta) 2.0))
12.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

simplify48.0ms

Algorithm
egg-herbie
Counts
123 → 123
Iterations

Useful iterations: 2 (37.0ms)

IterNodesCost
0450903
11596871
25002859

prune181.0ms

Filtered
84 candidates to 123 candidates (-46.4%)
Pruning

8 alts after pruning (8 fresh and 0 done)

PrunedKeptTotal
New1167123
Fresh9110
Picked101
Done000
Total1268134

Merged error: 3.3b

Counts
134 → 8

localize10.0ms

Local error

Found 4 expressions with local error:

0.0b
(/ (+ (+ alpha beta) 2.0) beta)
0.0b
(/ alpha (+ (+ alpha beta) 2.0))
0.6b
(/ 1 (/ (+ (+ alpha beta) 2.0) beta))
1.8b
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

rewrite48.0ms

Algorithm
rewrite-expression-head
Rules
182×*-un-lft-identity
148×times-frac
85×add-sqr-sqrt
80×add-cube-cbrt
60×distribute-lft-out
27×associate-/r*
19×add-exp-log
13×add-cbrt-cube
11×associate-/l*
div-exp
div-inv
add-log-exp
pow1 cbrt-undiv
frac-2neg clear-num associate-/r/
rec-exp flip3-+ 1-exp flip-+ associate-/l/ difference-of-squares
sub-neg flip3-- pow-flip diff-log flip-- distribute-lft-out-- inv-pow
Counts
4 → 189
Calls
4 calls:
8.0ms
(/ (+ (+ alpha beta) 2.0) beta)
7.0ms
(/ alpha (+ (+ alpha beta) 2.0))
10.0ms
(/ 1 (/ (+ (+ alpha beta) 2.0) beta))
13.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

series31.0ms

Counts
4 → 12
Calls
4 calls:
5.0ms
(/ (+ (+ alpha beta) 2.0) beta)
7.0ms
(/ alpha (+ (+ alpha beta) 2.0))
8.0ms
(/ 1 (/ (+ (+ alpha beta) 2.0) beta))
11.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

simplify69.0ms

Algorithm
egg-herbie
Counts
201 → 201
Iterations

Useful iterations: 2 (51.0ms)

IterNodesCost
05861447
125271312
250011209

prune200.0ms

Filtered
99 candidates to 201 candidates (-103.0%)
Pruning

9 alts after pruning (9 fresh and 0 done)

PrunedKeptTotal
New1974201
Fresh257
Picked101
Done000
Total2009209

Merged error: 3.3b

Counts
209 → 9

localize16.0ms

Local error

Found 4 expressions with local error:

1.8b
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)
10.1b
(cbrt (/ (+ (+ alpha beta) 2.0) beta))
10.1b
(cbrt (/ (+ (+ alpha beta) 2.0) beta))
10.1b
(cbrt (/ (+ (+ alpha beta) 2.0) beta))

rewrite36.0ms

Algorithm
rewrite-expression-head
Rules
78×*-un-lft-identity
57×cbrt-prod
46×times-frac
36×add-sqr-sqrt
31×add-cube-cbrt
27×distribute-lft-out
add-log-exp
pow1 add-exp-log add-cbrt-cube
cbrt-div pow1/3 div-inv
difference-of-squares
sub-neg flip3-- diff-log flip-- distribute-lft-out--
Counts
4 → 99
Calls
4 calls:
13.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)
6.0ms
(cbrt (/ (+ (+ alpha beta) 2.0) beta))
6.0ms
(cbrt (/ (+ (+ alpha beta) 2.0) beta))
6.0ms
(cbrt (/ (+ (+ alpha beta) 2.0) beta))

series104.0ms

Counts
4 → 12
Calls
4 calls:
13.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)
29.0ms
(cbrt (/ (+ (+ alpha beta) 2.0) beta))
30.0ms
(cbrt (/ (+ (+ alpha beta) 2.0) beta))
32.0ms
(cbrt (/ (+ (+ alpha beta) 2.0) beta))

simplify90.0ms

Algorithm
egg-herbie
Counts
111 → 111
Iterations

Useful iterations: 3 (77.0ms)

IterNodesCost
03141155
18141119
231101064
350021052

prune273.0ms

Filtered
80 candidates to 111 candidates (-38.8%)
Pruning

8 alts after pruning (8 fresh and 0 done)

PrunedKeptTotal
New1083111
Fresh358
Picked101
Done000
Total1128120

Merged error: 3.3b

Counts
120 → 8

regimes170.0ms

Accuracy

77.6% (3.0b remaining)

Error of 6.2b against oracle of 3.2b and baseline of 16.7b

bsearch15.0ms

Steps
ItersRangePoint
5
1.0162999502933616e+17
2.7288347914341258e+17
1.4003616358163075e+17

simplify2.0ms

Algorithm
egg-herbie
Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
04327
14327

end0.0ms

sample954.0ms

Algorithm
intervals
sampling

Space saved by range analysis: 43.768318%

Space saved by search: 43.768318%

Guaranteed chance to sample good point: 98.831177%

Results
191.0ms5792×body80valid
141.0ms8000×pre80true
138.0ms874×body1280valid
95.0ms733×body640valid
38.0ms410×body320valid
12.0ms191×body160valid

Profiling

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