Details

Time bar (total: 15.2s)

sample214.0ms

Algorithm
intervals
Results
72.0ms135×body160valid
48.0ms301×body80nan
39.0ms557×pre80true
20.0ms121×body80valid

simplify148.0ms

Counts
1 → 1
Iterations
IterNodes
done105
7105
6104
5102
494
377
244
125
014

prune25.0ms

Pruning

2 alts after pruning (2 fresh and 0 done)

Merged error: 28.3b

localize41.0ms

Local error

Found 4 expressions with local error:

0.0b
(fma b b (* (* a -4) c))
0.1b
(sqrt (fma b b (* (* a -4) c)))
0.2b
(/ (- (sqrt (fma b b (* (* a -4) c))) b) a)
28.3b
(- (sqrt (fma b b (* (* a -4) c))) b)

rewrite65.0ms

Algorithm
rewrite-expression-head
Rules
51×add-sqr-sqrt
40×*-un-lft-identity
30×add-cube-cbrt
20×sqrt-prod
18×times-frac prod-diff
10×difference-of-squares
6×add-cbrt-cube fma-neg add-exp-log associate-/l* add-log-exp
5×pow1 distribute-lft-out--
4×expm1-log1p-u insert-posit16 log1p-expm1-u
3×associate-/r*
2×flip3-- flip-- associate-/l/
1×cbrt-undiv rem-sqrt-square clear-num sub-neg frac-2neg sqrt-pow1 pow1/2 diff-log div-sub div-exp fma-udef div-inv
Counts
4 → 114
Calls
4 calls:
1.0ms
(fma b b (* (* a -4) c))
3.0ms
(sqrt (fma b b (* (* a -4) c)))
42.0ms
(/ (- (sqrt (fma b b (* (* a -4) c))) b) a)
16.0ms
(- (sqrt (fma b b (* (* a -4) c))) b)

series462.0ms

Counts
4 → 12
Calls
4 calls:
72.0ms
(fma b b (* (* a -4) c))
106.0ms
(sqrt (fma b b (* (* a -4) c)))
151.0ms
(/ (- (sqrt (fma b b (* (* a -4) c))) b) a)
132.0ms
(- (sqrt (fma b b (* (* a -4) c))) b)

simplify1.2s

Counts
126 → 126
Iterations
IterNodes
done2000
32000
21008
1423
0180

prune1.6s

Pruning

20 alts after pruning (20 fresh and 0 done)

Merged error: 8.6b

localize17.0ms

rewrite0.0ms

Algorithm
rewrite-expression-head
Rules
Counts
0 → 0

series0.0ms

Counts
0 → 0

simplify0.0ms

Counts
0 → 0
Iterations
IterNodes
done0
00

prune131.0ms

Pruning

20 alts after pruning (19 fresh and 1 done)

Merged error: 8.6b

localize17.0ms

Local error

Found 2 expressions with local error:

0.2b
(/ (* -2 (/ (* a c) b)) a)
0.3b
(/ (* a c) b)

rewrite39.0ms

Algorithm
rewrite-expression-head
Rules
21×add-cbrt-cube add-exp-log
8×cbrt-undiv div-exp
6×add-sqr-sqrt associate-/r* *-un-lft-identity times-frac add-cube-cbrt
5×prod-exp cbrt-unprod
2×expm1-log1p-u pow1 clear-num frac-2neg insert-posit16 log1p-expm1-u div-inv associate-/l* add-log-exp
1×associate-*r/ associate-/l/
Counts
2 → 53
Calls
2 calls:
23.0ms
(/ (* -2 (/ (* a c) b)) a)
15.0ms
(/ (* a c) b)

series67.0ms

Counts
2 → 6
Calls
2 calls:
37.0ms
(/ (* -2 (/ (* a c) b)) a)
31.0ms
(/ (* a c) b)

simplify1.1s

Counts
59 → 59
Iterations
IterNodes
done2051
32051
21421
1280
0103

prune544.0ms

Pruning

31 alts after pruning (30 fresh and 1 done)

Merged error: 8.4b

localize25.0ms

Local error

Found 3 expressions with local error:

0.2b
(/ -2 (/ a (/ (* a c) b)))
0.3b
(/ a (/ (* a c) b))
0.3b
(/ (* a c) b)

rewrite59.0ms

Algorithm
rewrite-expression-head
Rules
234×times-frac
104×add-sqr-sqrt *-un-lft-identity add-cube-cbrt
36×associate-/r*
31×add-cbrt-cube add-exp-log
23×div-inv
16×cbrt-undiv div-exp
7×associate-/l*
6×associate-/r/
3×expm1-log1p-u pow1 clear-num frac-2neg prod-exp cbrt-unprod insert-posit16 log1p-expm1-u add-log-exp
Counts
3 → 204
Calls
3 calls:
16.0ms
(/ -2 (/ a (/ (* a c) b)))
20.0ms
(/ a (/ (* a c) b))
17.0ms
(/ (* a c) b)

series65.0ms

Counts
3 → 9
Calls
3 calls:
24.0ms
(/ -2 (/ a (/ (* a c) b)))
10.0ms
(/ a (/ (* a c) b))
31.0ms
(/ (* a c) b)

simplify994.0ms

Counts
213 → 213
Iterations
IterNodes
done2001
22001
1919
0328

prune1.9s

Pruning

37 alts after pruning (36 fresh and 1 done)

Merged error: 8.4b

regimes979.0ms

Accuracy

47.4% (7.4b remaining)

Error of 16.2b against oracle of 8.9b and baseline of 22.9b

bsearch48.0ms

Steps
ItersRangePoint
2
2450.918963182764
2807.598712286329
2495.5039318207096

simplify7.0ms

Iterations
IterNodes
done29
129
024

end0.0ms

sample5.6s

Algorithm
intervals
Results
1.9s4419×body160valid
1.4s16924×pre80true
1.2s8924×body80nan
518.0ms3581×body80valid