Details

Time bar (total: 3.5s)

sample26.0ms

Algorithm
intervals
Results
5.0ms188×body80valid
3.0ms256×pre80true
3.0ms24×body1280valid
2.0ms20×body640valid
1.0ms14×body320valid
1.0ms10×body160valid

simplify72.0ms

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

prune2.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 15.9b

localize9.0ms

Local error

Found 2 expressions with local error:

0.0b
(/ (- beta alpha) (+ (+ alpha beta) 2.0))
3.1b
(+ (/ (- beta alpha) (+ (+ alpha beta) 2.0)) 1.0)

rewrite31.0ms

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:
10.0ms
(/ (- beta alpha) (+ (+ alpha beta) 2.0))
18.0ms
(+ (/ (- beta alpha) (+ (+ alpha beta) 2.0)) 1.0)

series112.0ms

Counts
2 → 6
Calls
2 calls:
50.0ms
(/ (- beta alpha) (+ (+ alpha beta) 2.0))
62.0ms
(+ (/ (- 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

prune154.0ms

Pruning

12 alts after pruning (12 fresh and 0 done)

Merged error: 15.2b

localize14.0ms

Local error

Found 4 expressions with local error:

0.0b
(/ alpha (+ (+ alpha beta) 2.0))
0.0b
(- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))
0.0b
(/ beta (+ (+ alpha beta) 2.0))
3.1b
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

rewrite60.0ms

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:
8.0ms
(/ alpha (+ (+ alpha beta) 2.0))
28.0ms
(- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))
7.0ms
(/ beta (+ (+ alpha beta) 2.0))
14.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

series236.0ms

Counts
4 → 12
Calls
4 calls:
48.0ms
(/ alpha (+ (+ alpha beta) 2.0))
58.0ms
(- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))
51.0ms
(/ beta (+ (+ alpha beta) 2.0))
79.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

simplify46.0ms

Algorithm
egg-herbie
Counts
123 → 123
Iterations

Useful iterations: 2 (36.0ms)

IterNodesCost
0450903
11596871
25002859

prune292.0ms

Pruning

7 alts after pruning (7 fresh and 0 done)

Merged error: 2.1b

localize18.0ms

Local error

Found 4 expressions with local error:

0.0b
(/ beta (+ (+ alpha beta) 2.0))
0.6b
(exp (log (- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))))
3.1b
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)
9.4b
(log (- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)))

rewrite79.0ms

Algorithm
rewrite-expression-head
Rules
49×*-un-lft-identity
32×add-sqr-sqrt
18×times-frac
17×add-cube-cbrt
14×log-prod
12×distribute-lft-out
log-div
add-exp-log exp-sum distribute-lft-out--
pow1 add-cbrt-cube add-log-exp difference-of-squares
flip3-- associate-/r* flip--
exp-prod exp-diff frac-sub
associate-/l*
associate-/r/ log-pow
cbrt-undiv sub-neg frac-2neg flip3-+ diff-log div-exp rem-log-exp clear-num flip-+ div-inv rem-exp-log
Counts
4 → 95
Calls
4 calls:
8.0ms
(/ beta (+ (+ alpha beta) 2.0))
28.0ms
(exp (log (- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))))
14.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)
27.0ms
(log (- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)))

series314.0ms

Counts
4 → 12
Calls
4 calls:
45.0ms
(/ beta (+ (+ alpha beta) 2.0))
63.0ms
(exp (log (- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))))
77.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)
129.0ms
(log (- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)))

simplify47.0ms

Algorithm
egg-herbie
Counts
107 → 107
Iterations

Useful iterations: 2 (35.0ms)

IterNodesCost
04671121
115281058
250011029

prune293.0ms

Pruning

8 alts after pruning (8 fresh and 0 done)

Merged error: 2.1b

localize17.0ms

Local error

Found 4 expressions with local error:

0.4b
(cbrt (pow (log (- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))) 3))
0.6b
(exp (cbrt (pow (log (- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))) 3)))
3.1b
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)
9.4b
(log (- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)))

rewrite55.0ms

Algorithm
rewrite-expression-head
Rules
28×cbrt-prod
22×add-sqr-sqrt
19×*-un-lft-identity
17×exp-prod
12×add-cube-cbrt
pow1
unpow-prod-down cube-prod
log-prod add-log-exp
add-exp-log log-pow
log-div add-cbrt-cube distribute-lft-out-- difference-of-squares
flip3-- flip--
cube-mult times-frac unpow3 frac-sub sqr-pow
sub-neg pow1/3 diff-log rem-log-exp rem-cbrt-cube rem-exp-log
Counts
4 → 83
Calls
4 calls:
2.0ms
(cbrt (pow (log (- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))) 3))
5.0ms
(exp (cbrt (pow (log (- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))) 3)))
14.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)
32.0ms
(log (- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)))

series386.0ms

Counts
4 → 12
Calls
4 calls:
122.0ms
(cbrt (pow (log (- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))) 3))
64.0ms
(exp (cbrt (pow (log (- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))) 3)))
77.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)
123.0ms
(log (- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)))

simplify47.0ms

Algorithm
egg-herbie
Counts
95 → 95
Iterations

Useful iterations: 2 (30.0ms)

IterNodesCost
03871188
112591140
250021127

prune257.0ms

Pruning

10 alts after pruning (9 fresh and 1 done)

Merged error: 2.1b

regimes127.0ms

Accuracy

78% (2.8b remaining)

Error of 5.8b against oracle of 3.0b and baseline of 15.8b

bsearch60.0ms

Steps
ItersRangePoint
9
326.37052880660207
1446799629.2404633
522468654.9348684

simplify1.0ms

Algorithm
egg-herbie
Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
04647
14647

end0.0ms

sample666.0ms

Algorithm
intervals
Results
170.0ms5844×body80valid
122.0ms829×body1280valid
102.0ms8000×pre80true
81.0ms701×body640valid
34.0ms407×body320valid
12.0ms219×body160valid