Details

Time bar (total: 6.9s)

sample25.0ms

Algorithm
intervals
Results
4.0ms180×body80valid
3.0ms31×body1280valid
3.0ms256×pre80true
2.0ms26×body640valid
1.0ms17×body320valid
0.0msbody160valid

simplify76.0ms

Counts
1 → 1
Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
0206
1346
2526
3736
41236
51846
62506
72876
83496
94376
105746
116546
127126
137856
1410756
1511506
1611936
1712136
1812216
1912216
done12216

prune2.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 17.7b

localize8.0ms

Local error

Found 2 expressions with local error:

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

rewrite228.0ms

Algorithm
rewrite-expression-head
Rules
104×*-un-lft-identity
50×times-frac
47×add-sqr-sqrt
34×distribute-lft-out
31×fma-def
25×add-cube-cbrt
11×distribute-lft-out-- difference-of-squares
associate-/r* associate-/l*
add-exp-log associate-/r/ add-cbrt-cube add-log-exp
flip3-+ flip-+
pow1 expm1-log1p-u div-sub log1p-expm1-u div-inv associate-/l/
cbrt-undiv +-commutative associate-+l- flip3-- frac-2neg div-exp clear-num sum-log flip--
Counts
2 → 100
Calls
2 calls:
47.0ms
(/ (- beta alpha) (+ (+ alpha beta) 2.0))
176.0ms
(+ (/ (- beta alpha) (+ (+ alpha beta) 2.0)) 1.0)

series114.0ms

Counts
2 → 6
Calls
2 calls:
53.0ms
(/ (- beta alpha) (+ (+ alpha beta) 2.0))
62.0ms
(+ (/ (- beta alpha) (+ (+ alpha beta) 2.0)) 1.0)

simplify37.0ms

Counts
106 → 106
Iterations

Useful iterations: 2 (30.0ms)

IterNodesCost
0335555
11087529
25002525
done5002525

prune218.0ms

Pruning

9 alts after pruning (9 fresh and 0 done)

Merged error: 16.5b

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

rewrite841.0ms

Algorithm
rewrite-expression-head
Rules
512×*-un-lft-identity
328×add-sqr-sqrt
263×times-frac
252×prod-diff
213×add-cube-cbrt
150×distribute-lft-out
65×associate--r+
46×difference-of-squares
42×fma-neg
32×associate-/r/
25×distribute-lft-out--
16×flip3-+ flip-+ div-inv
11×add-log-exp
10×associate-/r*
add-exp-log add-cbrt-cube
associate-/l*
pow1 expm1-log1p-u diff-log log1p-expm1-u
sub-neg flip3-- flip--
cbrt-undiv frac-2neg div-exp clear-num frac-sub
associate--r-
Counts
4 → 413
Calls
4 calls:
528.0ms
(- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))
35.0ms
(/ alpha (+ (+ alpha beta) 2.0))
34.0ms
(/ beta (+ (+ alpha beta) 2.0))
214.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

series252.0ms

Counts
4 → 12
Calls
4 calls:
67.0ms
(- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))
52.0ms
(/ alpha (+ (+ alpha beta) 2.0))
47.0ms
(/ beta (+ (+ alpha beta) 2.0))
85.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

simplify124.0ms

Counts
425 → 425
Iterations

Useful iterations: 2 (70.0ms)

IterNodesCost
09778429
131436259
250026131
done50026131

prune771.0ms

Pruning

13 alts after pruning (13 fresh and 0 done)

Merged error: 5.7b

localize13.0ms

Local error

Found 4 expressions with local error:

0.0b
(exp (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))
0.0b
(/ beta (+ (+ alpha beta) 2.0))
1.0b
(log (exp (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)))
1.0b
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

rewrite1.0s

Algorithm
rewrite-expression-head
Rules
346×*-un-lft-identity
189×prod-diff
185×add-sqr-sqrt
170×add-cube-cbrt
168×times-frac
130×exp-sum
102×distribute-lft-out
68×log-prod
22×associate-/r/
21×fma-neg
12×exp-prod
11×flip3-+ flip-+ div-inv
add-log-exp
log-pow
add-exp-log add-cbrt-cube difference-of-squares
pow1 associate-/r*
expm1-log1p-u log1p-expm1-u
sub-neg associate-/l* distribute-lft-out--
exp-diff diff-log rem-exp-log
cbrt-undiv log-div flip3-- frac-2neg div-exp rem-log-exp clear-num flip--
Counts
4 → 309
Calls
4 calls:
350.0ms
(exp (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))
35.0ms
(/ beta (+ (+ alpha beta) 2.0))
387.0ms
(log (exp (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)))
211.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

series293.0ms

Counts
4 → 12
Calls
4 calls:
71.0ms
(exp (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))
53.0ms
(/ beta (+ (+ alpha beta) 2.0))
82.0ms
(log (exp (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)))
85.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

simplify79.0ms

Counts
321 → 321
Iterations

Useful iterations: 2 (42.0ms)

IterNodesCost
06384268
118523053
250022419
done50022419

prune501.0ms

Pruning

12 alts after pruning (12 fresh and 0 done)

Merged error: 5.7b

localize22.0ms

Local error

Found 4 expressions with local error:

1.0b
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)
6.7b
(cbrt (/ beta (+ (+ alpha beta) 2.0)))
6.7b
(cbrt (/ beta (+ (+ alpha beta) 2.0)))
6.7b
(cbrt (/ beta (+ (+ alpha beta) 2.0)))

rewrite275.0ms

Algorithm
rewrite-expression-head
Rules
195×*-un-lft-identity
106×times-frac
93×add-sqr-sqrt
88×add-cube-cbrt
63×cbrt-prod prod-diff distribute-lft-out
21×fma-neg
14×associate-/r/
flip3-+ flip-+ div-inv
add-log-exp
pow1 add-exp-log expm1-log1p-u add-cbrt-cube log1p-expm1-u
cbrt-div pow1/3
difference-of-squares
sub-neg flip3-- diff-log flip-- distribute-lft-out--
Counts
4 → 197
Calls
4 calls:
211.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)
18.0ms
(cbrt (/ beta (+ (+ alpha beta) 2.0)))
18.0ms
(cbrt (/ beta (+ (+ alpha beta) 2.0)))
18.0ms
(cbrt (/ beta (+ (+ alpha beta) 2.0)))

series533.0ms

Counts
4 → 12
Calls
4 calls:
77.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)
154.0ms
(cbrt (/ beta (+ (+ alpha beta) 2.0)))
147.0ms
(cbrt (/ beta (+ (+ alpha beta) 2.0)))
155.0ms
(cbrt (/ beta (+ (+ alpha beta) 2.0)))

simplify64.0ms

Counts
209 → 209
Iterations

Useful iterations: 2 (37.0ms)

IterNodesCost
05092277
114471794
250011714
done50011714

prune687.0ms

Pruning

9 alts after pruning (9 fresh and 0 done)

Merged error: 5.7b

regimes87.0ms

Accuracy

76.8% (3.1b remaining)

Error of 6.1b against oracle of 3.0b and baseline of 16.3b

bsearch64.0ms

Steps
ItersRangePoint
10
7.61445106428951e+17
2.9705373761200776e+32
6.566215071237633e+18

simplify1.0ms

Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
03927
13927
done3927

end0.0ms

sample612.0ms

Algorithm
intervals
Results
136.0ms5785×body80valid
104.0ms879×body1280valid
85.0ms8000×pre80true
72.0ms741×body640valid
27.0ms406×body320valid
9.0ms189×body160valid