Details

Time bar (total: 6.4s)

sample63.0ms

Algorithm
intervals
Results
10.0ms33×body2560valid
10.0ms176×body80valid
8.0ms29×body1280valid
4.0ms78×body80nan
3.0ms16×body640valid
3.0msbody5120valid
1.0msbody320valid
1.0msbody160valid

simplify43.0ms

Counts
1 → 1
Iterations

Useful iterations: 2 (5.0ms)

IterNodesCost
01417
12417
24416
37916
49216
510016
done10016

prune8.0ms

Filtered
1 candidates to 1 candidates (0.0%)
Pruning

1 alts after pruning (1 fresh and 0 done)

PrunedKeptTotal
New011
Fresh101
Picked000
Done000
Total112

Merged error: 35.5b

Counts
2 → 1

localize11.0ms

Local error

Found 4 expressions with local error:

0.1b
(/ (/ (- (sqrt (- (* b b) (* (* 4.0 a) c))) b) 2.0) a)
1.0b
(- (* b b) (* (* 4.0 a) c))
1.7b
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
21.7b
(sqrt (- (* b b) (* (* 4.0 a) c)))

rewrite37.0ms

Algorithm
rewrite-expression-head
Rules
138×times-frac
121×add-sqr-sqrt
94×*-un-lft-identity
68×add-cube-cbrt
26×difference-of-squares
22×associate-/l*
16×sqrt-prod
13×distribute-lft-out--
add-exp-log add-cbrt-cube
add-log-exp
pow1 div-inv
cbrt-undiv flip3-- div-exp associate-/r* flip--
sub-neg sqrt-div diff-log div-sub
rem-sqrt-square frac-2neg sqrt-pow1 pow1/2 clear-num associate-/l/
Counts
4 → 149
Calls
4 calls:
13.0ms
(/ (/ (- (sqrt (- (* b b) (* (* 4.0 a) c))) b) 2.0) a)
4.0ms
(- (* b b) (* (* 4.0 a) c))
8.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
4.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

series74.0ms

Counts
4 → 12
Calls
4 calls:
29.0ms
(/ (/ (- (sqrt (- (* b b) (* (* 4.0 a) c))) b) 2.0) a)
10.0ms
(- (* b b) (* (* 4.0 a) c))
16.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
19.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

simplify551.0ms

Counts
161 → 161
Iterations

Useful iterations: done (544.0ms)

IterNodesCost
02774079
16603918
222223762
done50013756

prune357.0ms

Filtered
115 candidates to 161 candidates (-40.0%)
Pruning

11 alts after pruning (10 fresh and 1 done)

PrunedKeptTotal
New15110161
Fresh000
Picked011
Done000
Total15111162

Merged error: 5.7b

Counts
162 → 11

localize14.0ms

Local error

Found 4 expressions with local error:

1.7b
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
1.7b
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
21.7b
(sqrt (- (* b b) (* (* 4.0 a) c)))
21.7b
(sqrt (- (* b b) (* (* 4.0 a) c)))

rewrite26.0ms

Algorithm
rewrite-expression-head
Rules
16×add-sqr-sqrt
10×*-un-lft-identity
sqrt-prod add-log-exp
pow1 add-cube-cbrt
add-exp-log flip3-- sqrt-div add-cbrt-cube flip-- difference-of-squares
sub-neg rem-sqrt-square sqrt-pow1 pow1/2 diff-log distribute-lft-out--
Counts
4 → 60
Calls
4 calls:
8.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
8.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
4.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))
4.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

series68.0ms

Counts
4 → 12
Calls
4 calls:
19.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
16.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
16.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))
16.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

simplify683.0ms

Counts
72 → 72
Iterations

Useful iterations: 3 (177.0ms)

IterNodesCost
0811250
11861124
26201048
319811036
done50001036

prune189.0ms

Filtered
56 candidates to 72 candidates (-28.6%)
Pruning

11 alts after pruning (9 fresh and 2 done)

PrunedKeptTotal
New72072
Fresh099
Picked011
Done011
Total721183

Merged error: 5.7b

Counts
83 → 11

localize16.0ms

Local error

Found 4 expressions with local error:

0.6b
(cbrt a)
1.0b
(- (* b b) (* (* 4.0 a) c))
1.7b
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
21.7b
(sqrt (- (* b b) (* (* 4.0 a) c)))

rewrite21.0ms

Algorithm
rewrite-expression-head
Rules
11×add-sqr-sqrt
*-un-lft-identity add-log-exp
add-cube-cbrt
pow1
add-exp-log sqrt-prod add-cbrt-cube
cbrt-prod flip3-- flip--
sub-neg sqrt-div diff-log difference-of-squares
rem-sqrt-square sqrt-pow1 pow1/2 pow1/3 distribute-lft-out--
Counts
4 → 53
Calls
4 calls:
1.0ms
(cbrt a)
4.0ms
(- (* b b) (* (* 4.0 a) c))
8.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
6.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

series69.0ms

Counts
4 → 12
Calls
4 calls:
26.0ms
(cbrt a)
10.0ms
(- (* b b) (* (* 4.0 a) c))
17.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
17.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

simplify780.0ms

Counts
65 → 65
Iterations

Useful iterations: 3 (238.0ms)

IterNodesCost
0122925
1260846
2823774
32739758
done5000758

prune132.0ms

Filtered
49 candidates to 65 candidates (-32.7%)
Pruning

11 alts after pruning (9 fresh and 2 done)

PrunedKeptTotal
New62365
Fresh268
Picked101
Done022
Total651176

Merged error: 5.7b

Counts
76 → 11

localize21.0ms

Local error

Found 4 expressions with local error:

0.6b
(cbrt (cbrt a))
1.0b
(- (* b b) (* (* 4.0 a) c))
1.7b
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
21.7b
(sqrt (- (* b b) (* (* 4.0 a) c)))

rewrite22.0ms

Algorithm
rewrite-expression-head
Rules
12×add-sqr-sqrt
cbrt-prod *-un-lft-identity
add-log-exp
add-cube-cbrt
pow1
add-exp-log sqrt-prod add-cbrt-cube
flip3-- flip--
sub-neg sqrt-div diff-log difference-of-squares
rem-sqrt-square sqrt-pow1 pow1/2 pow1/3 distribute-lft-out--
Counts
4 → 56
Calls
4 calls:
2.0ms
(cbrt (cbrt a))
6.0ms
(- (* b b) (* (* 4.0 a) c))
8.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
4.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

series77.0ms

Counts
4 → 12
Calls
4 calls:
34.0ms
(cbrt (cbrt a))
10.0ms
(- (* b b) (* (* 4.0 a) c))
17.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
16.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

simplify781.0ms

Counts
68 → 68
Iterations

Useful iterations: 3 (242.0ms)

IterNodesCost
0132968
1275887
2841812
32739799
done5001799

prune105.0ms

Filtered
52 candidates to 68 candidates (-30.8%)
Pruning

11 alts after pruning (8 fresh and 3 done)

PrunedKeptTotal
New66268
Fresh268
Picked011
Done022
Total681179

Merged error: 5.7b

Counts
79 → 11

regimes368.0ms

Accuracy

84.8% (4.4b remaining)

Error of 10.3b against oracle of 5.9b and baseline of 34.5b

bsearch65.0ms

Steps
ItersRangePoint
7
2.951159271200378e-80
1.7529870675191086e-78
3.6492548177152135e-79
9
-1.5966504054646543e+104
-1.4637683111029664e+99
-4.7868277875676773e+101

simplify3.0ms

Iterations

Useful iterations: 0 (1.0ms)

IterNodesCost
02638
13038
done3038

end0.0ms

sample1.8s

Algorithm
intervals
Results
351.0ms1070×body2560valid
330.0ms5830×body80valid
250.0ms906×body1280valid
162.0ms2972×body80nan
101.0ms484×body640valid
56.0ms130×body5120valid
31.0ms198×body320valid
11.0ms102×body160valid

Profiling

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