Details

Time bar (total: 18.5s)

sample49.0ms

Algorithm
intervals
Results
12.0ms197×body80valid
7.0ms28×body2560valid
6.0ms31×body1280valid
3.0ms77×body80nan
2.0ms11×body640valid
1.0msbody320valid
0.0msbody160valid

simplify84.0ms

Counts
1 → 1
Iterations

Useful iterations: 2 (7.0ms)

IterNodesCost
01417
12417
24416
37816
49116
59916
done9916

prune9.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 33.8b

localize23.0ms

Local error

Found 4 expressions with local error:

0.3b
(/ (- (sqrt (- (* b b) (* (* 4.0 a) c))) b) (* 2.0 a))
0.7b
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
1.2b
(- (* b b) (* (* 4.0 a) c))
22.7b
(sqrt (- (* b b) (* (* 4.0 a) c)))

rewrite285.0ms

Algorithm
rewrite-expression-head
Rules
20×add-sqr-sqrt
13×*-un-lft-identity
add-exp-log add-cbrt-cube
add-log-exp
add-cube-cbrt
times-frac sqrt-prod associate-/l* difference-of-squares
pow1
flip3-- flip--
distribute-lft-out--
cbrt-undiv sub-neg sqrt-div diff-log div-exp associate-/l/
rem-sqrt-square frac-2neg sqrt-pow1 pow1/2 div-sub prod-exp clear-num associate-/r* cbrt-unprod div-inv
Counts
4 → 72
Calls
4 calls:
158.0ms
(/ (- (sqrt (- (* b b) (* (* 4.0 a) c))) b) (* 2.0 a))
91.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
16.0ms
(- (* b b) (* (* 4.0 a) c))
18.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

series396.0ms

Counts
4 → 12
Calls
4 calls:
139.0ms
(/ (- (sqrt (- (* b b) (* (* 4.0 a) c))) b) (* 2.0 a))
102.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
65.0ms
(- (* b b) (* (* 4.0 a) c))
89.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

simplify3.3s

Counts
84 → 84
Iterations

Useful iterations: 3 (1.7s)

IterNodesCost
01541592
13861488
212341332
346391324
done50021324

prune361.0ms

Pruning

8 alts after pruning (8 fresh and 0 done)

Merged error: 7.2b

localize31.0ms

Local error

Found 4 expressions with local error:

0.4b
(/ (* 2.0 a) (- (sqrt (- (* b b) (* (* 4.0 a) c))) b))
0.7b
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
1.2b
(- (* b b) (* (* 4.0 a) c))
22.7b
(sqrt (- (* b b) (* (* 4.0 a) c)))

rewrite165.0ms

Algorithm
rewrite-expression-head
Rules
20×add-sqr-sqrt
13×*-un-lft-identity
add-exp-log add-cbrt-cube
add-log-exp
add-cube-cbrt
times-frac associate-/r* sqrt-prod difference-of-squares
pow1
flip3-- flip--
distribute-lft-out--
cbrt-undiv sub-neg sqrt-div diff-log div-exp associate-/r/
rem-sqrt-square frac-2neg sqrt-pow1 pow1/2 prod-exp clear-num cbrt-unprod div-inv associate-/l*
Counts
4 → 71
Calls
4 calls:
55.0ms
(/ (* 2.0 a) (- (sqrt (- (* b b) (* (* 4.0 a) c))) b))
74.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
16.0ms
(- (* b b) (* (* 4.0 a) c))
18.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

series689.0ms

Counts
4 → 12
Calls
4 calls:
361.0ms
(/ (* 2.0 a) (- (sqrt (- (* b b) (* (* 4.0 a) c))) b))
141.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
84.0ms
(- (* b b) (* (* 4.0 a) c))
103.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

simplify3.0s

Counts
83 → 83
Iterations

Useful iterations: 3 (1.3s)

IterNodesCost
01451551
13481445
211411291
344851287
done50001287

prune324.0ms

Pruning

9 alts after pruning (8 fresh and 1 done)

Merged error: 7.1b

localize24.0ms

Local error

Found 4 expressions with local error:

0.2b
(* (* 4.0 a) c)
0.7b
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
1.2b
(- (* b b) (* (* 4.0 a) c))
22.7b
(sqrt (- (* b b) (* (* 4.0 a) c)))

rewrite132.0ms

Algorithm
rewrite-expression-head
Rules
11×add-sqr-sqrt
10×pow1
add-exp-log add-cbrt-cube
*-un-lft-identity add-log-exp
add-cube-cbrt
sqrt-prod
flip3-- associate-*r* pow-prod-down prod-exp flip-- cbrt-unprod
sub-neg sqrt-div diff-log difference-of-squares
rem-sqrt-square sqrt-pow1 pow1/2 associate-*l* *-commutative distribute-lft-out--
Counts
4 → 60
Calls
4 calls:
22.0ms
(* (* 4.0 a) c)
72.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
17.0ms
(- (* b b) (* (* 4.0 a) c))
18.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

series302.0ms

Counts
4 → 12
Calls
4 calls:
30.0ms
(* (* 4.0 a) c)
91.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
55.0ms
(- (* b b) (* (* 4.0 a) c))
126.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

simplify3.6s

Counts
72 → 72
Iterations

Useful iterations: done (3.6s)

IterNodesCost
01201001
1276903
2929825
33449821
done5000815

prune255.0ms

Pruning

9 alts after pruning (7 fresh and 2 done)

Merged error: 7.0b

localize26.0ms

Local error

Found 4 expressions with local error:

1.2b
(- (* b b) (* (* 4.0 a) c))
3.6b
(* (/ (- 0 (* (* 4.0 a) c)) (+ (sqrt (- (* b b) (* (* 4.0 a) c))) b)) (/ 1 (* 2.0 a)))
11.5b
(/ (- 0 (* (* 4.0 a) c)) (+ (sqrt (- (* b b) (* (* 4.0 a) c))) b))
22.7b
(sqrt (- (* b b) (* (* 4.0 a) c)))

rewrite291.0ms

Algorithm
rewrite-expression-head
Rules
51×add-exp-log
38×*-un-lft-identity
30×add-sqr-sqrt
28×times-frac
27×add-cbrt-cube
24×add-cube-cbrt
20×prod-exp
18×associate-*l*
16×div-exp
cbrt-undiv cbrt-unprod
pow1 associate-*r* distribute-lft-out
add-log-exp
rec-exp 1-exp associate-/r* associate-/r/
flip3-- sqrt-prod flip-- div-inv associate-/l*
flip3-+ sub0-neg sqrt-div distribute-frac-neg flip-+ associate-/l/ unswap-sqr
distribute-lft-neg-out frac-times sub-neg rem-sqrt-square frac-2neg sqrt-pow1 pow1/2 diff-log div-sub associate-*r/ pow-prod-down associate-*l/ clear-num un-div-inv *-commutative
Counts
4 → 125
Calls
4 calls:
17.0ms
(- (* b b) (* (* 4.0 a) c))
201.0ms
(* (/ (- 0 (* (* 4.0 a) c)) (+ (sqrt (- (* b b) (* (* 4.0 a) c))) b)) (/ 1 (* 2.0 a)))
52.0ms
(/ (- 0 (* (* 4.0 a) c)) (+ (sqrt (- (* b b) (* (* 4.0 a) c))) b))
9.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

series733.0ms

Counts
4 → 12
Calls
4 calls:
74.0ms
(- (* b b) (* (* 4.0 a) c))
275.0ms
(* (/ (- 0 (* (* 4.0 a) c)) (+ (sqrt (- (* b b) (* (* 4.0 a) c))) b)) (/ 1 (* 2.0 a)))
296.0ms
(/ (- 0 (* (* 4.0 a) c)) (+ (sqrt (- (* b b) (* (* 4.0 a) c))) b))
89.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

simplify1.6s

Counts
137 → 137
Iterations

Useful iterations: 2 (653.0ms)

IterNodesCost
02423748
16573373
225532889
done50002889

prune480.0ms

Pruning

9 alts after pruning (6 fresh and 3 done)

Merged error: 7.0b

regimes311.0ms

Accuracy

87.8% (3.2b remaining)

Error of 8.7b against oracle of 5.5b and baseline of 32.0b

bsearch227.0ms

Steps
ItersRangePoint
8
5.30600492772346e+88
1.193256888551369e+92
9.516392846981132e+91
10
8.134666143579123e-130
4.886277919964174e-120
8.706117685651469e-130
5
-1.9941030622962047e+109
-5.928196142097795e+108
-1.8572382657132166e+109

simplify18.0ms

Iterations

Useful iterations: 2 (7.0ms)

IterNodesCost
03771
15269
26267
36667
47067
done7067

end0.0ms

sample1.8s

Algorithm
intervals
Results
353.0ms1069×body2560valid
317.0ms5791×body80valid
254.0ms933×body1280valid
149.0ms2974×body80nan
88.0ms442×body640valid
47.0ms122×body5120valid
40.0ms244×body320valid
14.0ms126×body160valid