Details

Time bar (total: 13.6s)

sample70.0ms

Algorithm
intervals
Results
15.0ms38×body2560valid
12.0ms190×body80valid
11.0ms36×body1280valid
5.0ms79×body80nan
3.0ms11×body640valid
2.0msbody5120valid
1.0msbody320valid
0.0msbody160valid

simplify127.0ms

Counts
1 → 1
Iterations

Useful iterations: 2 (32.0ms)

IterNodesCost
01417
12417
24416
37916
49916
510716
done10716

prune12.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 34.2b

localize18.0ms

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))
0.8b
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
21.3b
(sqrt (- (* b b) (* (* 4.0 a) c)))

rewrite188.0ms

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:
96.0ms
(/ (- (sqrt (- (* b b) (* (* 4.0 a) c))) b) (* 2.0 a))
14.0ms
(- (* b b) (* (* 4.0 a) c))
61.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
16.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

series430.0ms

Counts
4 → 12
Calls
4 calls:
149.0ms
(/ (- (sqrt (- (* b b) (* (* 4.0 a) c))) b) (* 2.0 a))
60.0ms
(- (* b b) (* (* 4.0 a) c))
124.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
96.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

simplify858.0ms

Counts
84 → 84
Iterations

Useful iterations: 2 (240.0ms)

IterNodesCost
01541592
14051496
217891332
done50011332

prune347.0ms

Pruning

7 alts after pruning (7 fresh and 0 done)

Merged error: 5.6b

localize20.0ms

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))
0.8b
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
21.3b
(sqrt (- (* b b) (* (* 4.0 a) c)))

rewrite175.0ms

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:
91.0ms
(/ 1 (/ (* 2.0 a) (- (sqrt (- (* b b) (* (* 4.0 a) c))) b)))
9.0ms
(- (* b b) (* (* 4.0 a) c))
56.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
14.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

series530.0ms

Counts
4 → 12
Calls
4 calls:
201.0ms
(/ 1 (/ (* 2.0 a) (- (sqrt (- (* b b) (* (* 4.0 a) c))) b)))
91.0ms
(- (* b b) (* (* 4.0 a) c))
139.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
99.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

simplify1.6s

Counts
130 → 130
Iterations

Useful iterations: done (1.6s)

IterNodesCost
02203137
15712809
227562613
done50022611

prune468.0ms

Pruning

8 alts after pruning (7 fresh and 1 done)

Merged error: 5.5b

localize18.0ms

Local error

Found 4 expressions with local error:

0.2b
(- (* b b) (* (* 4.0 a) c))
0.2b
(* (/ 1 (* 2.0 a)) (- (sqrt (- (* b b) (* (* 4.0 a) c))) b))
0.8b
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
21.3b
(sqrt (- (* b b) (* (* 4.0 a) c)))

rewrite333.0ms

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-*l*
associate-*r*
flip3-- sqrt-prod flip--
sub-neg div-exp cbrt-unprod difference-of-squares
times-frac
cbrt-undiv distribute-rgt-in frac-times rec-exp distribute-lft-in sqrt-div diff-log 1-exp associate-*r/ distribute-lft-out--
rem-sqrt-square sqrt-pow1 pow1/2 pow-prod-down associate-*l/ *-commutative div-inv unswap-sqr
Counts
4 → 84
Calls
4 calls:
16.0ms
(- (* b b) (* (* 4.0 a) c))
211.0ms
(* (/ 1 (* 2.0 a)) (- (sqrt (- (* b b) (* (* 4.0 a) c))) b))
84.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
17.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

series492.0ms

Counts
4 → 12
Calls
4 calls:
59.0ms
(- (* b b) (* (* 4.0 a) c))
201.0ms
(* (/ 1 (* 2.0 a)) (- (sqrt (- (* b b) (* (* 4.0 a) c))) b))
127.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
105.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

simplify1.8s

Counts
96 → 96
Iterations

Useful iterations: 2 (347.0ms)

IterNodesCost
01711924
14871781
226031511
done50001511

prune309.0ms

Pruning

8 alts after pruning (6 fresh and 2 done)

Merged error: 5.5b

localize18.0ms

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))
0.8b
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
21.3b
(sqrt (- (* b b) (* (* 4.0 a) c)))

rewrite217.0ms

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:
120.0ms
(/ (- (sqrt (- (* b b) (* (* 4.0 a) c))) b) (* 2.0 a))
17.0ms
(- (* b b) (* (* 4.0 a) c))
64.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
11.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

series444.0ms

Counts
4 → 12
Calls
4 calls:
150.0ms
(/ (- (sqrt (- (* b b) (* (* 4.0 a) c))) b) (* 2.0 a))
80.0ms
(- (* b b) (* (* 4.0 a) c))
110.0ms
(- (sqrt (- (* b b) (* (* 4.0 a) c))) b)
104.0ms
(sqrt (- (* b b) (* (* 4.0 a) c)))

simplify888.0ms

Counts
84 → 84
Iterations

Useful iterations: 2 (237.0ms)

IterNodesCost
01541592
14051496
217891332
done50011332

prune275.0ms

Pruning

8 alts after pruning (5 fresh and 3 done)

Merged error: 5.5b

regimes231.0ms

Accuracy

84.6% (4.3b remaining)

Error of 10.3b against oracle of 6.0b and baseline of 33.8b

bsearch259.0ms

Steps
ItersRangePoint
9
3.58845601849977e-79
3.3299624871078663e-72
2.071930020515771e-74
9
-7.561250615295736e+156
-1.350243324689865e+150
-4.919628179067154e+153

simplify10.0ms

Iterations

Useful iterations: 1 (7.0ms)

IterNodesCost
03350
14538
done4538

end0.0ms

sample3.6s

Algorithm
intervals
Results
986.0ms5922×body80valid
921.0ms1053×body2560valid
374.0ms906×body1280valid
333.0ms2894×body80nan
148.0ms458×body640valid
120.0ms85×body5120valid
52.0ms220×body320valid
19.0ms121×body160valid