Details

Time bar (total: 15.5s)

sample126.0ms

Algorithm
intervals
Results
27.0ms185×body80valid
26.0ms33×body2560valid
22.0ms32×body1280valid
14.0ms97×body80nan
7.0ms12×body640valid
6.0msbody5120valid
3.0msbody320valid
1.0msbody160valid

simplify146.0ms

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

prune10.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 33.4b

localize20.0ms

Local error

Found 4 expressions with local error:

0.2b
(* (* a -4) c)
0.8b
(fma b b (* (* a -4) c))
1.1b
(- (sqrt (fma b b (* (* a -4) c))) b)
22.2b
(sqrt (fma b b (* (* a -4) c)))

rewrite39.0ms

Algorithm
rewrite-expression-head
Rules
25×add-sqr-sqrt
22×*-un-lft-identity
20×add-cube-cbrt
18×prod-diff
16×sqrt-prod
10×pow1
add-cbrt-cube add-exp-log
fma-neg add-log-exp
expm1-log1p-u insert-posit16 log1p-expm1-u
associate-*r* pow-prod-down prod-exp cbrt-unprod
difference-of-squares
rem-sqrt-square sub-neg sqrt-pow1 flip3-- pow1/2 diff-log associate-*l* *-commutative fma-udef flip-- distribute-lft-out--
Counts
4 → 90
Calls
4 calls:
27.0ms
(* (* a -4) c)
0.0ms
(fma b b (* (* a -4) c))
9.0ms
(- (sqrt (fma b b (* (* a -4) c))) b)
1.0ms
(sqrt (fma b b (* (* a -4) c)))

series291.0ms

Counts
4 → 12
Calls
4 calls:
23.0ms
(* (* a -4) c)
65.0ms
(fma b b (* (* a -4) c))
114.0ms
(- (sqrt (fma b b (* (* a -4) c))) b)
89.0ms
(sqrt (fma b b (* (* a -4) c)))

simplify1.0s

Counts
102 → 102
Iterations
IterNodes
done2002
32002
2915
1335
0146

prune539.0ms

Pruning

10 alts after pruning (10 fresh and 0 done)

Merged error: 9.9b

localize25.0ms

Local error

Found 4 expressions with local error:

0.0b
(fma a (* c -4) (* b b))
0.1b
(/ (- (sqrt (fma a (* c -4) (* b b))) b) a)
1.1b
(- (sqrt (fma a (* c -4) (* b b))) b)
22.2b
(sqrt (fma a (* c -4) (* b b)))

rewrite27.0ms

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
add-cbrt-cube fma-neg add-exp-log associate-/l* add-log-exp
pow1 distribute-lft-out--
expm1-log1p-u insert-posit16 log1p-expm1-u
associate-/r*
flip3-- flip-- associate-/l/
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:
0.0ms
(fma a (* c -4) (* b b))
16.0ms
(/ (- (sqrt (fma a (* c -4) (* b b))) b) a)
7.0ms
(- (sqrt (fma a (* c -4) (* b b))) b)
1.0ms
(sqrt (fma a (* c -4) (* b b)))

series428.0ms

Counts
4 → 12
Calls
4 calls:
55.0ms
(fma a (* c -4) (* b b))
164.0ms
(/ (- (sqrt (fma a (* c -4) (* b b))) b) a)
123.0ms
(- (sqrt (fma a (* c -4) (* b b))) b)
86.0ms
(sqrt (fma a (* c -4) (* b b)))

simplify868.0ms

Counts
126 → 126
Iterations
IterNodes
done2000
32000
2774
1336
0157

prune587.0ms

Pruning

13 alts after pruning (13 fresh and 0 done)

Merged error: 9.8b

localize37.0ms

Local error

Found 4 expressions with local error:

0.0b
(fma a (* c -4) (* b b))
0.1b
(/ (- (sqrt (* 1 (fma a (* c -4) (* b b)))) b) a)
1.1b
(- (sqrt (* 1 (fma a (* c -4) (* b b)))) b)
22.2b
(sqrt (* 1 (fma a (* c -4) (* b b))))

rewrite67.0ms

Algorithm
rewrite-expression-head
Rules
32×add-sqr-sqrt *-un-lft-identity
22×add-cube-cbrt
15×times-frac
12×prod-diff
pow1
add-cbrt-cube add-exp-log add-log-exp
sqrt-prod associate-/l* distribute-lft-out-- difference-of-squares
expm1-log1p-u fma-neg insert-posit16 log1p-expm1-u
associate-/r*
sqrt-pow1 flip3-- flip-- associate-/l/
cbrt-undiv clear-num sub-neg frac-2neg pow1/2 diff-log div-sub div-exp pow-prod-down fma-udef div-inv
Counts
4 → 99
Calls
4 calls:
0.0ms
(fma a (* c -4) (* b b))
38.0ms
(/ (- (sqrt (* 1 (fma a (* c -4) (* b b)))) b) a)
18.0ms
(- (sqrt (* 1 (fma a (* c -4) (* b b)))) b)
8.0ms
(sqrt (* 1 (fma a (* c -4) (* b b))))

series450.0ms

Counts
4 → 12
Calls
4 calls:
60.0ms
(fma a (* c -4) (* b b))
128.0ms
(/ (- (sqrt (* 1 (fma a (* c -4) (* b b)))) b) a)
146.0ms
(- (sqrt (* 1 (fma a (* c -4) (* b b)))) b)
117.0ms
(sqrt (* 1 (fma a (* c -4) (* b b))))

simplify1.1s

Counts
111 → 111
Iterations
IterNodes
done2006
32006
2797
1331
0154

prune640.0ms

Pruning

13 alts after pruning (12 fresh and 1 done)

Merged error: 9.8b

localize54.0ms

Local error

Found 4 expressions with local error:

0.1b
(/ a (- (sqrt (fma a (* c -4) (* b b))) b))
0.2b
(/ 1 (/ a (- (sqrt (fma a (* c -4) (* b b))) b)))
1.1b
(- (sqrt (fma a (* c -4) (* b b))) b)
22.2b
(sqrt (fma a (* c -4) (* b b)))

rewrite76.0ms

Algorithm
rewrite-expression-head
Rules
164×add-sqr-sqrt
162×times-frac
129×*-un-lft-identity
95×add-cube-cbrt
34×difference-of-squares
32×sqrt-prod
30×associate-/r*
18×prod-diff
17×add-exp-log distribute-lft-out--
11×add-cbrt-cube associate-/r/
div-exp
pow1 flip3-- fma-neg div-inv flip-- associate-/l* add-log-exp
expm1-log1p-u cbrt-undiv insert-posit16 log1p-expm1-u
rec-exp clear-num frac-2neg 1-exp
rem-sqrt-square sub-neg sqrt-pow1 pow1/2 diff-log pow-flip inv-pow
Counts
4 → 225
Calls
4 calls:
23.0ms
(/ a (- (sqrt (fma a (* c -4) (* b b))) b))
28.0ms
(/ 1 (/ a (- (sqrt (fma a (* c -4) (* b b))) b)))
16.0ms
(- (sqrt (fma a (* c -4) (* b b))) b)
2.0ms
(sqrt (fma a (* c -4) (* b b)))

series639.0ms

Counts
4 → 12
Calls
4 calls:
261.0ms
(/ a (- (sqrt (fma a (* c -4) (* b b))) b))
142.0ms
(/ 1 (/ a (- (sqrt (fma a (* c -4) (* b b))) b)))
99.0ms
(- (sqrt (fma a (* c -4) (* b b))) b)
135.0ms
(sqrt (fma a (* c -4) (* b b)))

simplify1.4s

Counts
237 → 237
Iterations
IterNodes
done2000
32000
21599
1679
0285

prune1.1s

Pruning

13 alts after pruning (11 fresh and 2 done)

Merged error: 4.0b

regimes521.0ms

Accuracy

83.4% (4.5b remaining)

Error of 10.5b against oracle of 6.0b and baseline of 32.9b

bsearch217.0ms

Steps
ItersRangePoint
9
2.0671083276743448e-101
1.4914771383599542e-96
1.489031291672483e-98
5
-3.3440263710910746e+131
-9.921521910190385e+130
-1.7512236628315378e+131

simplify11.0ms

Iterations
IterNodes
done36
136
030

end0.0ms

sample5.0s

Algorithm
intervals
Results
1.6s1106×body2560valid
1.5s5933×body80valid
673.0ms842×body1280valid
523.0ms2940×body80nan
233.0ms437×body640valid
120.0ms120×body5120valid
111.0ms210×body320valid
30.0ms113×body160valid