Details

Time bar (total: 10.4s)

sample40.0ms

Algorithm
intervals
Results
9.0ms40×body2560valid
8.0ms194×body80valid
5.0ms28×body1280valid
3.0ms76×body80nan
1.0ms10×body640valid
1.0msbody5120valid
0.0msbody320valid
0.0msbody160valid

simplify45.0ms

Counts
1 → 1
Iterations

Useful iterations: 2 (5.0ms)

IterNodesCost
01417
12417
24416
37816
49016
59816
done9816

prune5.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 34.0b

localize11.0ms

Local error

Found 4 expressions with local error:

0.2b
(+ (- b) (sqrt (- (* b b) (* (* 4.0 a) c))))
0.2b
(* (* 4.0 a) c)
0.4b
(- (* b b) (* (* 4.0 a) c))
24.7b
(sqrt (- (* b b) (* (* 4.0 a) c)))

rewrite27.0ms

Algorithm
rewrite-expression-head
Rules
10×pow1 *-un-lft-identity add-log-exp
add-exp-log add-cbrt-cube
add-sqr-sqrt
add-cube-cbrt
associate-*r* pow-prod-down prod-exp sqrt-prod cbrt-unprod
flip3-- sqrt-div sum-log flip-- distribute-lft-out
+-commutative neg-sub0 associate-+l- sub-neg rem-sqrt-square distribute-rgt-neg-in sqrt-pow1 flip3-+ pow1/2 diff-log associate-*l* neg-log *-commutative flip-+
Counts
4 → 60
Calls
4 calls:
11.0ms
(+ (- b) (sqrt (- (* b b) (* (* 4.0 a) c))))
6.0ms
(* (* 4.0 a) c)
2.0ms
(- (* b b) (* (* 4.0 a) c))
6.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

series215.0ms

Counts
4 → 12
Calls
4 calls:
81.0ms
(+ (- b) (sqrt (- (* b b) (* (* 4.0 a) c))))
19.0ms
(* (* 4.0 a) c)
43.0ms
(- (* b b) (* (* 4.0 a) c))
71.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

simplify2.7s

Counts
72 → 72
Iterations

Useful iterations: 3 (1.0s)

IterNodesCost
01221001
1307907
21091805
34573795
done5000795

prune191.0ms

Pruning

7 alts after pruning (6 fresh and 1 done)

Merged error: 10.7b

localize15.0ms

Local error

Found 4 expressions with local error:

0.4b
(- (* b b) (* (* 4.0 a) c))
24.7b
(sqrt (- (* b b) (* (* 4.0 a) c)))
24.7b
(sqrt (- (* b b) (* (* 4.0 a) c)))
24.7b
(sqrt (- (* b b) (* (* 4.0 a) c)))

rewrite14.0ms

Algorithm
rewrite-expression-head
Rules
10×add-sqr-sqrt
sqrt-prod
pow1 add-cube-cbrt *-un-lft-identity
sqrt-div add-log-exp
add-exp-log flip3-- add-cbrt-cube flip--
rem-sqrt-square sqrt-pow1 pow1/2
sub-neg diff-log
Counts
4 → 57
Calls
4 calls:
2.0ms
(- (* b b) (* (* 4.0 a) c))
3.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))
3.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))
4.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

series248.0ms

Counts
4 → 12
Calls
4 calls:
43.0ms
(- (* b b) (* (* 4.0 a) c))
69.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))
67.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))
69.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

simplify936.0ms

Counts
69 → 69
Iterations

Useful iterations: done (934.0ms)

IterNodesCost
0621075
1150969
2520881
32068881
done5000878

prune248.0ms

Pruning

7 alts after pruning (5 fresh and 2 done)

Merged error: 10.7b

localize16.0ms

Local error

Found 4 expressions with local error:

1.6b
(- (- b) (sqrt (- (* b b) (* (* 4.0 a) c))))
3.5b
(/ (/ (+ 0 (* 4.0 (* a c))) (- (- b) (sqrt (- (* b b) (* (* 4.0 a) c))))) (* 2.0 a))
10.4b
(/ (+ 0 (* 4.0 (* a c))) (- (- b) (sqrt (- (* b b) (* (* 4.0 a) c)))))
24.7b
(sqrt (- (* b b) (* (* 4.0 a) c)))

rewrite92.0ms

Algorithm
rewrite-expression-head
Rules
90×times-frac
84×add-sqr-sqrt
83×*-un-lft-identity
39×add-cube-cbrt
30×associate-/l*
22×distribute-lft-out-- difference-of-squares
18×add-exp-log add-cbrt-cube
14×sqrt-prod
11×distribute-rgt-neg-in
associate-/r* add-log-exp
cbrt-undiv div-exp
associate-/r/
pow1 flip3-- flip--
div-inv
associate-/l/
frac-2neg sqrt-div diff-log prod-exp clear-num cbrt-unprod
associate--l- neg-sub0 sub-neg rem-sqrt-square sqrt-pow1 flip3-+ pow1/2 neg-log flip-+
Counts
4 → 154
Calls
4 calls:
12.0ms
(- (- b) (sqrt (- (* b b) (* (* 4.0 a) c))))
44.0ms
(/ (/ (+ 0 (* 4.0 (* a c))) (- (- b) (sqrt (- (* b b) (* (* 4.0 a) c))))) (* 2.0 a))
26.0ms
(/ (+ 0 (* 4.0 (* a c))) (- (- b) (sqrt (- (* b b) (* (* 4.0 a) c)))))
4.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

series473.0ms

Counts
4 → 12
Calls
4 calls:
77.0ms
(- (- b) (sqrt (- (* b b) (* (* 4.0 a) c))))
148.0ms
(/ (/ (+ 0 (* 4.0 (* a c))) (- (- b) (sqrt (- (* b b) (* (* 4.0 a) c))))) (* 2.0 a))
177.0ms
(/ (+ 0 (* 4.0 (* a c))) (- (- b) (sqrt (- (* b b) (* (* 4.0 a) c)))))
72.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

simplify828.0ms

Counts
166 → 166
Iterations

Useful iterations: done (823.0ms)

IterNodesCost
02565113
16494541
226414211
done50014209

prune634.0ms

Pruning

11 alts after pruning (10 fresh and 1 done)

Merged error: 10.4b

localize21.0ms

Local error

Found 4 expressions with local error:

1.6b
(- (- b) (sqrt (- (* b b) (* (* 4.0 a) c))))
3.3b
(* (/ (+ 0 (* 4.0 (* a c))) (- (- b) (sqrt (- (* b b) (* (* 4.0 a) c))))) (/ 1 (* 2.0 a)))
10.4b
(/ (+ 0 (* 4.0 (* a c))) (- (- b) (sqrt (- (* b b) (* (* 4.0 a) c)))))
24.7b
(sqrt (- (* b b) (* (* 4.0 a) c)))

rewrite114.0ms

Algorithm
rewrite-expression-head
Rules
68×add-sqr-sqrt
62×*-un-lft-identity
51×add-exp-log
46×times-frac
30×add-cube-cbrt
27×associate-*l* add-cbrt-cube
20×prod-exp
16×div-exp distribute-lft-out-- difference-of-squares
11×sqrt-prod
cbrt-undiv distribute-rgt-neg-in cbrt-unprod add-log-exp
pow1 associate-*r* associate-/r*
rec-exp flip3-- 1-exp associate-/r/ flip--
div-inv associate-/l*
sqrt-div diff-log associate-/l/ unswap-sqr
associate--l- neg-sub0 frac-times sub-neg rem-sqrt-square frac-2neg sqrt-pow1 flip3-+ pow1/2 associate-*r/ pow-prod-down neg-log associate-*l/ clear-num un-div-inv *-commutative flip-+
Counts
4 → 149
Calls
4 calls:
12.0ms
(- (- b) (sqrt (- (* b b) (* (* 4.0 a) c))))
66.0ms
(* (/ (+ 0 (* 4.0 (* a c))) (- (- b) (sqrt (- (* b b) (* (* 4.0 a) c))))) (/ 1 (* 2.0 a)))
26.0ms
(/ (+ 0 (* 4.0 (* a c))) (- (- b) (sqrt (- (* b b) (* (* 4.0 a) c)))))
4.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

series470.0ms

Counts
4 → 12
Calls
4 calls:
76.0ms
(- (- b) (sqrt (- (* b b) (* (* 4.0 a) c))))
146.0ms
(* (/ (+ 0 (* 4.0 (* a c))) (- (- b) (sqrt (- (* b b) (* (* 4.0 a) c))))) (/ 1 (* 2.0 a)))
176.0ms
(/ (+ 0 (* 4.0 (* a c))) (- (- b) (sqrt (- (* b b) (* (* 4.0 a) c)))))
72.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

simplify1.0s

Counts
161 → 161
Iterations

Useful iterations: done (1.0s)

IterNodesCost
02614703
17404091
228793625
done50003623

prune400.0ms

Pruning

9 alts after pruning (8 fresh and 1 done)

Merged error: 10.4b

regimes265.0ms

Accuracy

96.5% (0.8b remaining)

Error of 11.9b against oracle of 11.1b and baseline of 34.2b

bsearch218.0ms

Steps
ItersRangePoint
7
2.7208697733301495e+159
4.8169665308125605e+160
2.7494607386129675e+159
10
8.653734362945753e-196
5.147670875442886e-182
4.8356294076712185e-189
11
-1.829086240692416e+154
-2.187052964502477e+134
-1.3358786167585806e+154

simplify4.0ms

Iterations

Useful iterations: 1 (2.0ms)

IterNodesCost
04293
15391
done5391

end0.0ms

sample1.2s

Algorithm
intervals
Results
256.0ms1104×body2560valid
237.0ms5868×body80valid
174.0ms910×body1280valid
111.0ms2861×body80nan
62.0ms422×body640valid
27.0ms96×body5120valid
23.0ms212×body320valid
9.0ms120×body160valid