Details

Time bar (total: 16.9s)

sample74.0ms

Algorithm
intervals
Results
14.0ms190×body80valid
14.0ms36×body2560valid
10.0ms28×body1280valid
6.0ms92×body80nan
5.0ms16×body640valid
2.0msbody320valid
1.0msbody5120valid
0.0msbody160valid

simplify98.0ms

Counts
1 → 1
Iterations

Useful iterations: 2 (7.0ms)

IterNodesCost
01417
12417
24416
37816
49116
59916
done9916

prune6.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 33.4b

localize21.0ms

Local error

Found 4 expressions with local error:

0.1b
(/ (- (sqrt (- (* b b) (* (* 4.0 a) c))) b) (* 2.0 a))
0.2b
(- (* b b) (* (* 4.0 a) c))
1.1b
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
22.0b
(sqrt (- (* b b) (* (* 4.0 a) c)))

rewrite234.0ms

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:
155.0ms
(/ (- (sqrt (- (* b b) (* (* 4.0 a) c))) b) (* 2.0 a))
12.0ms
(- (* b b) (* (* 4.0 a) c))
51.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
13.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

series439.0ms

Counts
4 → 12
Calls
4 calls:
161.0ms
(/ (- (sqrt (- (* b b) (* (* 4.0 a) c))) b) (* 2.0 a))
72.0ms
(- (* b b) (* (* 4.0 a) c))
120.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
86.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

simplify3.3s

Counts
84 → 84
Iterations

Useful iterations: 3 (1.7s)

IterNodesCost
01541592
13861488
212331332
346481324
done50021324

prune303.0ms

Pruning

7 alts after pruning (7 fresh and 0 done)

Merged error: 4.6b

localize15.0ms

Local error

Found 4 expressions with local error:

0.2b
(/ 1 (/ (* 2.0 a) (- (sqrt (- (* b b) (* (* 4.0 a) c))) b)))
0.2b
(- (* b b) (* (* 4.0 a) c))
1.1b
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
22.0b
(sqrt (- (* b b) (* (* 4.0 a) c)))

rewrite183.0ms

Algorithm
rewrite-expression-head
Rules
60×times-frac
47×add-sqr-sqrt
36×*-un-lft-identity
26×add-cube-cbrt
25×add-exp-log
13×add-cbrt-cube
12×div-exp associate-/r*
10×difference-of-squares
associate-/r/
sqrt-prod add-log-exp
flip3-- flip--
pow1
cbrt-undiv div-inv distribute-lft-out--
rec-exp 1-exp prod-exp associate-/l*
sub-neg sqrt-div diff-log
rem-sqrt-square pow-flip frac-2neg sqrt-pow1 pow1/2 clear-num cbrt-unprod inv-pow
Counts
4 → 118
Calls
4 calls:
93.0ms
(/ 1 (/ (* 2.0 a) (- (sqrt (- (* b b) (* (* 4.0 a) c))) b)))
9.0ms
(- (* b b) (* (* 4.0 a) c))
62.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
10.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

series511.0ms

Counts
4 → 12
Calls
4 calls:
193.0ms
(/ 1 (/ (* 2.0 a) (- (sqrt (- (* b b) (* (* 4.0 a) c))) b)))
62.0ms
(- (* b b) (* (* 4.0 a) c))
147.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
109.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

simplify1.5s

Counts
130 → 130
Iterations

Useful iterations: done (1.5s)

IterNodesCost
02203137
14972801
214612561
done50002481

prune481.0ms

Pruning

8 alts after pruning (7 fresh and 1 done)

Merged error: 4.6b

localize15.0ms

Local error

Found 4 expressions with local error:

0.2b
(- (* b b) (* (* 4.0 a) c))
0.2b
(* (- (sqrt (- (* b b) (* (* 4.0 a) c))) b) (/ 1 (* 2.0 a)))
1.1b
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
22.0b
(sqrt (- (* b b) (* (* 4.0 a) c)))

rewrite329.0ms

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:
10.0ms
(- (* b b) (* (* 4.0 a) c))
231.0ms
(* (- (sqrt (- (* b b) (* (* 4.0 a) c))) b) (/ 1 (* 2.0 a)))
74.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
10.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

series394.0ms

Counts
4 → 12
Calls
4 calls:
49.0ms
(- (* b b) (* (* 4.0 a) c))
141.0ms
(* (- (sqrt (- (* b b) (* (* 4.0 a) c))) b) (/ 1 (* 2.0 a)))
115.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
89.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

simplify1.8s

Counts
93 → 93
Iterations

Useful iterations: done (1.8s)

IterNodesCost
01801851
14421643
214891437
done50011431

prune332.0ms

Pruning

8 alts after pruning (6 fresh and 2 done)

Merged error: 4.6b

localize22.0ms

Local error

Found 4 expressions with local error:

1.1b
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
1.1b
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
22.0b
(sqrt (- (* b b) (* (* 4.0 a) c)))
22.0b
(sqrt (- (* b b) (* (* 4.0 a) c)))

rewrite165.0ms

Algorithm
rewrite-expression-head
Rules
16×add-sqr-sqrt
10×*-un-lft-identity
sqrt-prod add-log-exp
pow1 add-cube-cbrt
add-exp-log flip3-- sqrt-div add-cbrt-cube flip-- difference-of-squares
sub-neg rem-sqrt-square sqrt-pow1 pow1/2 diff-log distribute-lft-out--
Counts
4 → 60
Calls
4 calls:
60.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
69.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
16.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))
17.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

series460.0ms

Counts
4 → 12
Calls
4 calls:
122.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
121.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
110.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))
106.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

simplify2.4s

Counts
72 → 72
Iterations

Useful iterations: done (2.4s)

IterNodesCost
0811248
11901104
25701036
318851028
done50001016

prune285.0ms

Pruning

8 alts after pruning (5 fresh and 3 done)

Merged error: 4.6b

regimes228.0ms

Accuracy

84.2% (4.6b remaining)

Error of 9.9b against oracle of 5.3b and baseline of 34.2b

bsearch205.0ms

Steps
ItersRangePoint
11
1.5906747666251227e-34
6.100620313640196e-08
1.611450844781215e-34
9
-6.354265220965125e+156
-1.769171722317776e+149
-1.5501620157466267e+150

simplify9.0ms

Iterations

Useful iterations: 0 (2.0ms)

IterNodesCost
02840
13540
done3540

end0.0ms

sample3.0s

Algorithm
intervals
Results
651.0ms1076×body2560valid
515.0ms5882×body80valid
428.0ms107×body5120valid
330.0ms2915×body80nan
285.0ms848×body1280valid
147.0ms468×body640valid
60.0ms122×body160valid
43.0ms212×body320valid