Details

Time bar (total: 15.4s)

sample59.0ms

Algorithm
intervals
Results
19.0ms202×body80valid
8.0ms27×body1280valid
6.0ms256×pre80true
4.0ms16×body640valid
1.0msbody320valid
1.0msbody160valid

simplify655.0ms

Counts
1 → 1
Iterations

Useful iterations: 0 (0.0ms)

IterNodesCost
01013
12013
23413
35213
47313
511813
616113
719913
823013
926813
1029613
1130713
1231913
1332313
done32313

prune2.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 12.5b

localize10.0ms

Local error

Found 2 expressions with local error:

0.0b
(/ (- beta alpha) (+ (+ alpha beta) 2.0))
1.7b
(+ (/ (- beta alpha) (+ (+ alpha beta) 2.0)) 1.0)

rewrite334.0ms

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:
70.0ms
(/ (- beta alpha) (+ (+ alpha beta) 2.0))
254.0ms
(+ (/ (- beta alpha) (+ (+ alpha beta) 2.0)) 1.0)

series169.0ms

Counts
2 → 6
Calls
2 calls:
62.0ms
(/ (- beta alpha) (+ (+ alpha beta) 2.0))
107.0ms
(+ (/ (- beta alpha) (+ (+ alpha beta) 2.0)) 1.0)

simplify2.3s

Counts
106 → 106
Iterations

Useful iterations: done (2.3s)

IterNodesCost
01281178
13351110
29501056
330941048
done50011043

prune386.0ms

Pruning

14 alts after pruning (14 fresh and 0 done)

Merged error: 12.2b

localize11.0ms

Local error

Found 3 expressions with local error:

0.0b
(/ alpha (+ (+ alpha beta) 2.0))
0.0b
(/ beta (+ (+ alpha beta) 2.0))
1.7b
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

rewrite485.0ms

Algorithm
rewrite-expression-head
Rules
182×*-un-lft-identity
91×times-frac
85×add-sqr-sqrt
80×add-cube-cbrt
63×prod-diff
60×distribute-lft-out
21×fma-neg
12×associate-/r/
10×associate-/r*
add-exp-log add-cbrt-cube
flip3-+ flip-+ div-inv associate-/l*
add-log-exp
pow1 expm1-log1p-u log1p-expm1-u
cbrt-undiv frac-2neg div-exp clear-num difference-of-squares
sub-neg flip3-- diff-log flip-- distribute-lft-out--
Counts
3 → 179
Calls
3 calls:
74.0ms
(/ alpha (+ (+ alpha beta) 2.0))
64.0ms
(/ beta (+ (+ alpha beta) 2.0))
328.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

series287.0ms

Counts
3 → 9
Calls
3 calls:
79.0ms
(/ alpha (+ (+ alpha beta) 2.0))
84.0ms
(/ beta (+ (+ alpha beta) 2.0))
123.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

simplify2.3s

Counts
188 → 188
Iterations

Useful iterations: 3 (1.3s)

IterNodesCost
02213563
14922856
211592541
335892285
done50002285

prune451.0ms

Pruning

5 alts after pruning (5 fresh and 0 done)

Merged error: 0.9b

localize20.0ms

Local error

Found 4 expressions with local error:

0.0b
(/ beta (+ (+ alpha beta) 2.0))
0.0b
(cbrt (pow (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0) 3))
0.0b
(pow (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0) 3)
1.7b
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

rewrite895.0ms

Algorithm
rewrite-expression-head
Rules
167×*-un-lft-identity
102×add-sqr-sqrt
80×times-frac
77×add-cube-cbrt
63×prod-diff
48×distribute-lft-out
21×fma-neg
18×cbrt-prod
12×unpow-prod-down cube-prod
10×associate-/r/ difference-of-squares
add-exp-log add-cbrt-cube
add-log-exp
pow1 flip3-+ associate-/r* flip-+ div-inv distribute-lft-out--
cube-div expm1-log1p-u log1p-expm1-u
pow-unpow flip3-- flip-- associate-/l*
cube-mult cbrt-div unpow3 sqr-pow
cbrt-undiv pow-to-exp sub-neg pow-pow frac-2neg pow1/3 diff-log div-exp pow-exp clear-num rem-cbrt-cube rem-cube-cbrt
Counts
4 → 204
Calls
4 calls:
45.0ms
(/ beta (+ (+ alpha beta) 2.0))
240.0ms
(cbrt (pow (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0) 3))
272.0ms
(pow (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0) 3)
323.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

series665.0ms

Counts
4 → 12
Calls
4 calls:
86.0ms
(/ beta (+ (+ alpha beta) 2.0))
173.0ms
(cbrt (pow (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0) 3))
300.0ms
(pow (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0) 3)
106.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

simplify1.4s

Counts
216 → 216
Iterations

Useful iterations: done (1.4s)

IterNodesCost
02884532
16663628
217203223
done50013049

prune782.0ms

Pruning

7 alts after pruning (6 fresh and 1 done)

Merged error: 0.9b

localize22.0ms

Local error

Found 2 expressions with local error:

0.0b
(/ 1 (+ (+ alpha beta) 2.0))
12.9b
(fma (- beta alpha) (/ 1 (+ (+ alpha beta) 2.0)) 1.0)

rewrite79.0ms

Algorithm
rewrite-expression-head
Rules
32×*-un-lft-identity
15×times-frac
12×add-sqr-sqrt add-cube-cbrt distribute-lft-out
add-exp-log
associate-/r*
add-cbrt-cube
pow1 associate-/l*
expm1-log1p-u div-exp associate-/r/ log1p-expm1-u add-log-exp
cbrt-undiv rec-exp pow-flip frac-2neg flip3-+ 1-exp clear-num flip-+ fma-udef div-inv inv-pow
Counts
2 → 53
Calls
2 calls:
74.0ms
(/ 1 (+ (+ alpha beta) 2.0))
1.0ms
(fma (- beta alpha) (/ 1 (+ (+ alpha beta) 2.0)) 1.0)

series148.0ms

Counts
2 → 6
Calls
2 calls:
53.0ms
(/ 1 (+ (+ alpha beta) 2.0))
95.0ms
(fma (- beta alpha) (/ 1 (+ (+ alpha beta) 2.0)) 1.0)

simplify1.8s

Counts
59 → 59
Iterations

Useful iterations: done (1.8s)

IterNodesCost
094705
1203621
2499555
31609554
done5000551

prune120.0ms

Pruning

7 alts after pruning (5 fresh and 2 done)

Merged error: 0.9b

regimes108.0ms

Accuracy

77.4% (2.9b remaining)

Error of 6.1b against oracle of 3.2b and baseline of 16.0b

bsearch79.0ms

Steps
ItersRangePoint
9
5.185608013011847
8177076.526676658
8092481.162986399

simplify7.0ms

Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
02843
13243
done3243

end0.0ms

sample1.8s

Algorithm
intervals
Results
747.0ms5798×body80valid
261.0ms828×body1280valid
259.0ms8000×pre80true
156.0ms703×body640valid
56.0ms441×body320valid
21.0ms230×body160valid