Details

Time bar (total: 9.5s)

sample24.0ms

Algorithm
intervals
Results
4.0ms178×body80valid
4.0ms34×body1280valid
3.0ms256×pre80true
2.0ms19×body640valid
1.0ms15×body320valid
1.0ms10×body160valid

simplify320.0ms

Counts
1 → 1
Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
01013
12013
23313
35113
47013
511913
615513
720113
823413
928513
1032513
1133513
1234713
1335913
done35913

prune2.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 18.0b

localize8.0ms

Local error

Found 2 expressions with local error:

0.0b
(/ (- beta alpha) (+ (+ alpha beta) 2.0))
2.6b
(+ (/ (- beta alpha) (+ (+ alpha beta) 2.0)) 1.0)

rewrite128.0ms

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:
26.0ms
(/ (- beta alpha) (+ (+ alpha beta) 2.0))
97.0ms
(+ (/ (- beta alpha) (+ (+ alpha beta) 2.0)) 1.0)

series107.0ms

Counts
2 → 6
Calls
2 calls:
46.0ms
(/ (- beta alpha) (+ (+ alpha beta) 2.0))
61.0ms
(+ (/ (- beta alpha) (+ (+ alpha beta) 2.0)) 1.0)

simplify1.2s

Counts
106 → 106
Iterations

Useful iterations: done (1.2s)

IterNodesCost
01281178
13341110
28751056
326871048
done50001047

prune215.0ms

Pruning

11 alts after pruning (11 fresh and 0 done)

Merged error: 17.3b

localize9.0ms

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))
2.6b
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

rewrite482.0ms

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:
18.0ms
(/ alpha (+ (+ alpha beta) 2.0))
296.0ms
(- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))
19.0ms
(/ beta (+ (+ alpha beta) 2.0))
116.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

series228.0ms

Counts
4 → 12
Calls
4 calls:
45.0ms
(/ alpha (+ (+ alpha beta) 2.0))
60.0ms
(- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))
46.0ms
(/ beta (+ (+ alpha beta) 2.0))
76.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

simplify891.0ms

Counts
425 → 425
Iterations

Useful iterations: done (873.0ms)

IterNodesCost
040216706
193613361
2247211385
done500111298

prune755.0ms

Pruning

8 alts after pruning (8 fresh and 0 done)

Merged error: 2.6b

localize20.0ms

Local error

Found 4 expressions with local error:

0.7b
(cbrt (+ (+ alpha beta) 2.0))
0.7b
(cbrt (+ (+ alpha beta) 2.0))
2.6b
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)
2.6b
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

rewrite262.0ms

Algorithm
rewrite-expression-head
Rules
254×*-un-lft-identity
130×add-sqr-sqrt
126×prod-diff
122×times-frac
120×add-cube-cbrt
78×distribute-lft-out
42×fma-neg
16×associate-/r/
10×cbrt-prod flip3-+ flip-+
div-inv add-log-exp
pow1 add-exp-log expm1-log1p-u cbrt-div add-cbrt-cube log1p-expm1-u difference-of-squares
sub-neg flip3-- pow1/3 diff-log flip-- distribute-lft-out--
Counts
4 → 236
Calls
4 calls:
8.0ms
(cbrt (+ (+ alpha beta) 2.0))
8.0ms
(cbrt (+ (+ alpha beta) 2.0))
115.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)
117.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

series354.0ms

Counts
4 → 12
Calls
4 calls:
97.0ms
(cbrt (+ (+ alpha beta) 2.0))
98.0ms
(cbrt (+ (+ alpha beta) 2.0))
78.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)
80.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)

simplify1.3s

Counts
248 → 248
Iterations

Useful iterations: done (1.3s)

IterNodesCost
02045724
14454422
210653854
331433292
done50003058

prune533.0ms

Pruning

8 alts after pruning (8 fresh and 0 done)

Merged error: 2.6b

localize13.0ms

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))))
2.6b
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)
10.6b
(log (- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)))

rewrite532.0ms

Algorithm
rewrite-expression-head
Rules
166×*-un-lft-identity
89×add-sqr-sqrt
78×times-frac
74×add-cube-cbrt
63×prod-diff
48×distribute-lft-out
21×fma-neg
14×log-prod
10×associate-/r/
log-div
add-exp-log exp-sum distribute-lft-out--
pow1 add-cbrt-cube add-log-exp difference-of-squares
flip3-- flip3-+ associate-/r* flip-- flip-+ div-inv
expm1-log1p-u exp-prod exp-diff frac-sub log1p-expm1-u
associate-/l*
log-pow
cbrt-undiv sub-neg frac-2neg diff-log div-exp rem-log-exp clear-num rem-exp-log
Counts
4 → 187
Calls
4 calls:
18.0ms
(/ beta (+ (+ alpha beta) 2.0))
167.0ms
(exp (log (- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))))
114.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)
223.0ms
(log (- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)))

series316.0ms

Counts
4 → 12
Calls
4 calls:
49.0ms
(/ beta (+ (+ alpha beta) 2.0))
65.0ms
(exp (log (- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0))))
71.0ms
(- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)
130.0ms
(log (- (/ beta (+ (+ alpha beta) 2.0)) (- (/ alpha (+ (+ alpha beta) 2.0)) 1.0)))

simplify629.0ms

Counts
199 → 199
Iterations

Useful iterations: done (622.0ms)

IterNodesCost
02994746
16483934
216873535
done50003417

prune371.0ms

Pruning

9 alts after pruning (9 fresh and 0 done)

Merged error: 2.6b

regimes128.0ms

Accuracy

78.1% (2.8b remaining)

Error of 6.0b against oracle of 3.3b and baseline of 15.9b

bsearch36.0ms

Steps
ItersRangePoint
5
391248603.19673574
1027443772.3458656
1015227874.2528594

simplify7.0ms

Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
03598
13998
done3998

end0.0ms

sample609.0ms

Algorithm
intervals
Results
147.0ms5870×body80valid
104.0ms828×body1280valid
100.0ms8000×pre80true
67.0ms692×body640valid
34.0ms409×body320valid
10.0ms201×body160valid