Details

Time bar (total: 19.3s)

sample107.0ms

Algorithm
intervals
Results
19.0ms184×body80valid
18.0ms31×body2560valid
16.0ms33×body1280valid
8.0ms90×body80nan
5.0ms12×body640valid
3.0msbody320valid
1.0msbody5120valid
0.0msbody160valid

simplify158.0ms

Counts
1 → 1
Iterations

Useful iterations: 2 (41.0ms)

IterNodesCost
01417
12417
24416
37816
410216
511116
done11116

prune22.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 35.5b

localize39.0ms

Local error

Found 4 expressions with local error:

0.1b
(/ (- (sqrt (- (* b b) (* 4.0 (* a c)))) b) (* 2.0 a))
0.8b
(- (* b b) (* 4.0 (* a c)))
1.0b
(- (sqrt (- (* b b) (* 4.0 (* a c)))) b)
22.8b
(sqrt (- (* b b) (* 4.0 (* a c))))

rewrite311.0ms

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:
173.0ms
(/ (- (sqrt (- (* b b) (* 4.0 (* a c)))) b) (* 2.0 a))
19.0ms
(- (* b b) (* 4.0 (* a c)))
98.0ms
(- (sqrt (- (* b b) (* 4.0 (* a c)))) b)
17.0ms
(sqrt (- (* b b) (* 4.0 (* a c))))

series583.0ms

Counts
4 → 12
Calls
4 calls:
212.0ms
(/ (- (sqrt (- (* b b) (* 4.0 (* a c)))) b) (* 2.0 a))
89.0ms
(- (* b b) (* 4.0 (* a c)))
150.0ms
(- (sqrt (- (* b b) (* 4.0 (* a c)))) b)
132.0ms
(sqrt (- (* b b) (* 4.0 (* a c))))

simplify1.3s

Counts
84 → 84
Iterations

Useful iterations: done (1.3s)

IterNodesCost
01521592
14031496
215981332
done50001326

prune731.0ms

Pruning

9 alts after pruning (9 fresh and 0 done)

Merged error: 7.8b

localize42.0ms

Local error

Found 4 expressions with local error:

0.2b
(* (- (sqrt (- (* b b) (* 4.0 (* a c)))) b) (/ 1 (* 2.0 a)))
0.8b
(- (* b b) (* 4.0 (* a c)))
1.0b
(- (sqrt (- (* b b) (* 4.0 (* a c)))) b)
22.8b
(sqrt (- (* b b) (* 4.0 (* a c))))

rewrite446.0ms

Algorithm
rewrite-expression-head
Rules
23×add-exp-log
19×add-sqr-sqrt
13×add-cbrt-cube
12×*-un-lft-identity
10×prod-exp
add-cube-cbrt add-log-exp
pow1 associate-*r*
associate-*l*
flip3-- sqrt-prod flip--
div-exp cbrt-unprod difference-of-squares
times-frac
cbrt-undiv frac-times sub-neg rec-exp sqrt-div diff-log 1-exp associate-*l/ distribute-lft-out--
rem-sqrt-square sqrt-pow1 pow1/2 associate-*r/ pow-prod-down un-div-inv *-commutative div-inv unswap-sqr
Counts
4 → 81
Calls
4 calls:
305.0ms
(* (- (sqrt (- (* b b) (* 4.0 (* a c)))) b) (/ 1 (* 2.0 a)))
21.0ms
(- (* b b) (* 4.0 (* a c)))
95.0ms
(- (sqrt (- (* b b) (* 4.0 (* a c)))) b)
19.0ms
(sqrt (- (* b b) (* 4.0 (* a c))))

series596.0ms

Counts
4 → 12
Calls
4 calls:
209.0ms
(* (- (sqrt (- (* b b) (* 4.0 (* a c)))) b) (/ 1 (* 2.0 a)))
93.0ms
(- (* b b) (* 4.0 (* a c)))
154.0ms
(- (sqrt (- (* b b) (* 4.0 (* a c)))) b)
140.0ms
(sqrt (- (* b b) (* 4.0 (* a c))))

simplify2.0s

Counts
93 → 93
Iterations

Useful iterations: done (2.0s)

IterNodesCost
01781851
14821693
223581445
done50011443

prune701.0ms

Pruning

8 alts after pruning (7 fresh and 1 done)

Merged error: 7.8b

localize45.0ms

Local error

Found 4 expressions with local error:

0.1b
(/ (sqrt (- (* b b) (* 4.0 (* a c)))) (* 2.0 a))
0.8b
(- (* b b) (* 4.0 (* a c)))
5.7b
(- (/ (sqrt (- (* b b) (* 4.0 (* a c)))) (* 2.0 a)) (/ b (* 2.0 a)))
22.8b
(sqrt (- (* b b) (* 4.0 (* a c))))

rewrite228.0ms

Algorithm
rewrite-expression-head
Rules
13×*-un-lft-identity
12×add-sqr-sqrt
add-exp-log add-cube-cbrt sqrt-prod add-cbrt-cube
times-frac add-log-exp
associate-/l*
pow1
flip3-- sqrt-div flip--
div-inv
cbrt-undiv sub-neg diff-log div-exp associate-/l/ distribute-lft-out--
rem-sqrt-square distribute-rgt-out-- frac-2neg sqrt-pow1 pow1/2 prod-exp clear-num associate-/r* frac-sub cbrt-unprod sub-div difference-of-squares
Counts
4 → 74
Calls
4 calls:
44.0ms
(/ (sqrt (- (* b b) (* 4.0 (* a c)))) (* 2.0 a))
17.0ms
(- (* b b) (* 4.0 (* a c)))
132.0ms
(- (/ (sqrt (- (* b b) (* 4.0 (* a c)))) (* 2.0 a)) (/ b (* 2.0 a)))
31.0ms
(sqrt (- (* b b) (* 4.0 (* a c))))

series689.0ms

Counts
4 → 12
Calls
4 calls:
251.0ms
(/ (sqrt (- (* b b) (* 4.0 (* a c)))) (* 2.0 a))
93.0ms
(- (* b b) (* 4.0 (* a c)))
212.0ms
(- (/ (sqrt (- (* b b) (* 4.0 (* a c)))) (* 2.0 a)) (/ b (* 2.0 a)))
132.0ms
(sqrt (- (* b b) (* 4.0 (* a c))))

simplify1.3s

Counts
86 → 86
Iterations

Useful iterations: done (1.3s)

IterNodesCost
01611718
14221572
216131436
done50011432

prune598.0ms

Pruning

7 alts after pruning (6 fresh and 1 done)

Merged error: 7.8b

localize56.0ms

Local error

Found 4 expressions with local error:

0.3b
(/ (sqrt 1) (/ (* 2.0 a) (sqrt (- (* b b) (* 4.0 (* a c))))))
0.8b
(- (* b b) (* 4.0 (* a c)))
9.7b
(- (/ (sqrt 1) (/ (* 2.0 a) (sqrt (- (* b b) (* 4.0 (* a c)))))) (/ b (* 2.0 a)))
22.8b
(sqrt (- (* b b) (* 4.0 (* a c))))

rewrite343.0ms

Algorithm
rewrite-expression-head
Rules
117×times-frac
65×sqrt-prod
63×add-sqr-sqrt
55×*-un-lft-identity
52×add-cube-cbrt
16×sqrt-div
15×associate-/r/
13×add-exp-log add-cbrt-cube
12×associate-/r*
10×flip3-- flip--
div-inv add-log-exp
associate-/l*
pow1 cbrt-undiv div-exp
difference-of-squares
sub-neg diff-log
rem-sqrt-square frac-2neg sqrt-pow1 pow1/2 prod-exp clear-num frac-sub cbrt-unprod distribute-lft-out--
Counts
4 → 152
Calls
4 calls:
46.0ms
(/ (sqrt 1) (/ (* 2.0 a) (sqrt (- (* b b) (* 4.0 (* a c))))))
16.0ms
(- (* b b) (* 4.0 (* a c)))
251.0ms
(- (/ (sqrt 1) (/ (* 2.0 a) (sqrt (- (* b b) (* 4.0 (* a c)))))) (/ b (* 2.0 a)))
18.0ms
(sqrt (- (* b b) (* 4.0 (* a c))))

series619.0ms

Counts
4 → 12
Calls
4 calls:
168.0ms
(/ (sqrt 1) (/ (* 2.0 a) (sqrt (- (* b b) (* 4.0 (* a c))))))
96.0ms
(- (* b b) (* 4.0 (* a c)))
223.0ms
(- (/ (sqrt 1) (/ (* 2.0 a) (sqrt (- (* b b) (* 4.0 (* a c)))))) (/ b (* 2.0 a)))
132.0ms
(sqrt (- (* b b) (* 4.0 (* a c))))

simplify2.0s

Counts
164 → 164
Iterations

Useful iterations: done (2.0s)

IterNodesCost
02584706
16704020
226363769
done50013745

prune789.0ms

Pruning

8 alts after pruning (6 fresh and 2 done)

Merged error: 7.7b

regimes542.0ms

Accuracy

82.7% (5.1b remaining)

Error of 10.5b against oracle of 5.4b and baseline of 34.6b

bsearch302.0ms

Steps
ItersRangePoint
8
7.520261887413394e-140
8.544177483477188e-136
2.4581158795060287e-136
10
-6.623625638726693e+82
-6.4709084601913214e+72
-1.6581383089037873e+81

simplify8.0ms

Iterations

Useful iterations: 1 (5.0ms)

IterNodesCost
03045
13744
done3744

end0.0ms

sample4.6s

Algorithm
intervals
Results
986.0ms908×body1280valid
922.0ms2982×body80nan
819.0ms5800×body80valid
708.0ms1065×body2560valid
328.0ms452×body640valid
82.0ms122×body5120valid
62.0ms231×body320valid
24.0ms133×body160valid