Details

Time bar (total: 20.9s)

sample102.0ms

Algorithm
intervals
Results
22.0ms37×body2560valid
19.0ms191×body80valid
11.0ms23×body1280valid
8.0ms90×body80nan
6.0ms15×body640valid
1.0msbody160valid
1.0msbody320valid
1.0msbody5120valid

simplify257.0ms

Counts
1 → 1
Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
01417
12817
26417
311417
414117
515117
615517
done15517

prune7.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 32.4b

localize37.0ms

Local error

Found 4 expressions with local error:

0.1b
(/ (- (- b) (sqrt (- (* b b) (* 4.0 (* a c))))) (* 2.0 a))
0.8b
(- (* b b) (* 4.0 (* a c)))
1.1b
(- (- b) (sqrt (- (* b b) (* 4.0 (* a c)))))
23.4b
(sqrt (- (* b b) (* 4.0 (* a c))))

rewrite217.0ms

Algorithm
rewrite-expression-head
Rules
20×add-sqr-sqrt
19×*-un-lft-identity
10×add-log-exp
add-exp-log add-cbrt-cube
add-cube-cbrt times-frac associate-/l*
sqrt-prod distribute-lft-out-- difference-of-squares
pow1
flip3-- flip--
distribute-rgt-neg-in diff-log
cbrt-undiv sub-neg sqrt-div div-exp associate-/l/
associate--l- neg-sub0 rem-sqrt-square frac-2neg sqrt-pow1 pow1/2 div-sub neg-log prod-exp clear-num associate-/r* cbrt-unprod div-inv
Counts
4 → 77
Calls
4 calls:
128.0ms
(/ (- (- b) (sqrt (- (* b b) (* 4.0 (* a c))))) (* 2.0 a))
16.0ms
(- (* b b) (* 4.0 (* a c)))
42.0ms
(- (- b) (sqrt (- (* b b) (* 4.0 (* a c)))))
25.0ms
(sqrt (- (* b b) (* 4.0 (* a c))))

series505.0ms

Counts
4 → 12
Calls
4 calls:
163.0ms
(/ (- (- b) (sqrt (- (* b b) (* 4.0 (* a c))))) (* 2.0 a))
74.0ms
(- (* b b) (* 4.0 (* a c)))
135.0ms
(- (- b) (sqrt (- (* b b) (* 4.0 (* a c)))))
132.0ms
(sqrt (- (* b b) (* 4.0 (* a c))))

simplify1.2s

Counts
89 → 89
Iterations

Useful iterations: done (1.2s)

IterNodesCost
01571750
14181650
216441474
done50001466

prune700.0ms

Pruning

9 alts after pruning (9 fresh and 0 done)

Merged error: 7.7b

localize39.0ms

Local error

Found 4 expressions with local error:

0.2b
(* (- (- b) (sqrt (- (* b b) (* 4.0 (* a c))))) (/ 1 (* 2.0 a)))
0.8b
(- (* b b) (* 4.0 (* a c)))
1.1b
(- (- b) (sqrt (- (* b b) (* 4.0 (* a c)))))
23.4b
(sqrt (- (* b b) (* 4.0 (* a c))))

rewrite276.0ms

Algorithm
rewrite-expression-head
Rules
23×add-exp-log
19×add-sqr-sqrt
16×*-un-lft-identity
13×add-cbrt-cube
10×prod-exp add-log-exp
add-cube-cbrt
pow1 associate-*r* associate-*l*
flip3-- sqrt-prod flip--
div-exp cbrt-unprod distribute-lft-out-- difference-of-squares
times-frac diff-log
cbrt-undiv frac-times sub-neg rec-exp distribute-rgt-neg-in sqrt-div 1-exp associate-*l/
associate--l- neg-sub0 rem-sqrt-square sqrt-pow1 pow1/2 associate-*r/ pow-prod-down neg-log un-div-inv *-commutative div-inv unswap-sqr
Counts
4 → 85
Calls
4 calls:
191.0ms
(* (- (- b) (sqrt (- (* b b) (* 4.0 (* a c))))) (/ 1 (* 2.0 a)))
24.0ms
(- (* b b) (* 4.0 (* a c)))
40.0ms
(- (- b) (sqrt (- (* b b) (* 4.0 (* a c)))))
16.0ms
(sqrt (- (* b b) (* 4.0 (* a c))))

series503.0ms

Counts
4 → 12
Calls
4 calls:
159.0ms
(* (- (- b) (sqrt (- (* b b) (* 4.0 (* a c))))) (/ 1 (* 2.0 a)))
94.0ms
(- (* b b) (* 4.0 (* a c)))
131.0ms
(- (- b) (sqrt (- (* b b) (* 4.0 (* a c)))))
119.0ms
(sqrt (- (* b b) (* 4.0 (* a c))))

simplify1.8s

Counts
97 → 97
Iterations

Useful iterations: done (1.8s)

IterNodesCost
01832003
14921837
223981573
done50001569

prune662.0ms

Pruning

7 alts after pruning (6 fresh and 1 done)

Merged error: 7.7b

localize45.0ms

Local error

Found 4 expressions with local error:

0.2b
(/ 1 (/ (* 2.0 a) (- (- b) (sqrt (- (* b b) (* 4.0 (* a c)))))))
0.8b
(- (* b b) (* 4.0 (* a c)))
1.1b
(- (- b) (sqrt (- (* b b) (* 4.0 (* a c)))))
23.4b
(sqrt (- (* b b) (* 4.0 (* a c))))

rewrite198.0ms

Algorithm
rewrite-expression-head
Rules
67×times-frac
48×add-sqr-sqrt
47×*-un-lft-identity
27×add-cube-cbrt
25×add-exp-log
13×associate-/r* add-cbrt-cube
12×div-exp
10×distribute-lft-out-- add-log-exp difference-of-squares
associate-/r/
sqrt-prod
flip3-- flip--
pow1
cbrt-undiv distribute-rgt-neg-in div-inv
rec-exp diff-log 1-exp prod-exp associate-/l*
sub-neg sqrt-div
associate--l- neg-sub0 rem-sqrt-square pow-flip frac-2neg sqrt-pow1 pow1/2 neg-log clear-num cbrt-unprod inv-pow
Counts
4 → 125
Calls
4 calls:
97.0ms
(/ 1 (/ (* 2.0 a) (- (- b) (sqrt (- (* b b) (* 4.0 (* a c)))))))
17.0ms
(- (* b b) (* 4.0 (* a c)))
55.0ms
(- (- b) (sqrt (- (* b b) (* 4.0 (* a c)))))
19.0ms
(sqrt (- (* b b) (* 4.0 (* a c))))

series576.0ms

Counts
4 → 12
Calls
4 calls:
219.0ms
(/ 1 (/ (* 2.0 a) (- (- b) (sqrt (- (* b b) (* 4.0 (* a c)))))))
88.0ms
(- (* b b) (* 4.0 (* a c)))
142.0ms
(- (- b) (sqrt (- (* b b) (* 4.0 (* a c)))))
128.0ms
(sqrt (- (* b b) (* 4.0 (* a c))))

simplify1.9s

Counts
137 → 137
Iterations

Useful iterations: 2 (573.0ms)

IterNodesCost
02263421
15883066
225932852
done50012852

prune771.0ms

Pruning

6 alts after pruning (4 fresh and 2 done)

Merged error: 7.6b

localize50.0ms

Local error

Found 4 expressions with local error:

1.0b
(- (sqrt (- (* b b) (* 4.0 (* a c)))) b)
2.7b
(/ (/ (+ 0 (* 4.0 (* a c))) (- (sqrt (- (* b b) (* 4.0 (* a c)))) b)) (* 2.0 a))
12.5b
(/ (+ 0 (* 4.0 (* a c))) (- (sqrt (- (* b b) (* 4.0 (* a c)))) b))
23.4b
(sqrt (- (* b b) (* 4.0 (* a c))))

rewrite473.0ms

Algorithm
rewrite-expression-head
Rules
81×add-sqr-sqrt
78×times-frac
58×*-un-lft-identity
36×add-cube-cbrt
27×associate-/l*
22×difference-of-squares
18×add-exp-log add-cbrt-cube
14×sqrt-prod
11×distribute-lft-out--
cbrt-undiv div-exp associate-/r*
associate-/r/ add-log-exp
pow1 flip3-- flip--
div-inv
associate-/l/
frac-2neg sqrt-div prod-exp clear-num cbrt-unprod
sub-neg rem-sqrt-square sqrt-pow1 flip3-+ pow1/2 diff-log flip-+
Counts
4 → 141
Calls
4 calls:
87.0ms
(- (sqrt (- (* b b) (* 4.0 (* a c)))) b)
211.0ms
(/ (/ (+ 0 (* 4.0 (* a c))) (- (sqrt (- (* b b) (* 4.0 (* a c)))) b)) (* 2.0 a))
139.0ms
(/ (+ 0 (* 4.0 (* a c))) (- (sqrt (- (* b b) (* 4.0 (* a c)))) b))
21.0ms
(sqrt (- (* b b) (* 4.0 (* a c))))

series1.1s

Counts
4 → 12
Calls
4 calls:
160.0ms
(- (sqrt (- (* b b) (* 4.0 (* a c)))) b)
350.0ms
(/ (/ (+ 0 (* 4.0 (* a c))) (- (sqrt (- (* b b) (* 4.0 (* a c)))) b)) (* 2.0 a))
412.0ms
(/ (+ 0 (* 4.0 (* a c))) (- (sqrt (- (* b b) (* 4.0 (* a c)))) b))
145.0ms
(sqrt (- (* b b) (* 4.0 (* a c))))

simplify3.4s

Counts
153 → 153
Iterations

Useful iterations: 2 (1.0s)

IterNodesCost
02504579
16494063
236203761
done50013761

prune1.0s

Pruning

8 alts after pruning (5 fresh and 3 done)

Merged error: 7.6b

regimes508.0ms

Accuracy

84.2% (4.5b remaining)

Error of 9.9b against oracle of 5.4b and baseline of 33.9b

bsearch225.0ms

Steps
ItersRangePoint
10
9.08791783933159e+82
5.750161104817302e+93
9.623020473898683e+86
5
-1.2210963557284012e-33
-3.582918381276583e-34
-3.8424248185280593e-34

simplify8.0ms

Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
02839
13639
done3639

end0.0ms

sample4.4s

Algorithm
intervals
Results
1.4s5910×body80valid
849.0ms1110×body2560valid
617.0ms901×body1280valid
384.0ms3015×body80nan
166.0ms436×body640valid
75.0ms104×body5120valid
61.0ms217×body320valid
25.0ms111×body160valid