Details

Time bar (total: 15.0s)

sample124.0ms

Algorithm
intervals
Results
37.0ms180×body80valid
29.0ms38×body2560valid
15.0ms23×body1280valid
12.0ms106×body80nan
9.0ms19×body640valid
3.0msbody5120valid
1.0msbody160valid
1.0msbody320valid

simplify127.0ms

Calls
1 calls:
Slowest
127.0ms
(/ (+ (- b) (sqrt (- (* b b) (* 4 (* a c))))) (* 2 a))

prune12.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 35.7b

localize41.0ms

Local error

Found 4 expressions with local error:

26.1b
(sqrt (fma b b (* (* a c) -4)))
1.1b
(- (sqrt (fma b b (* (* a c) -4))) b)
0.8b
(fma b b (* (* a c) -4))
0.1b
(/ (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2) a)

rewrite41.0ms

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt
*-un-lft-identity add-cube-cbrt
fma-neg sqrt-prod
expm1-log1p-u pow1 add-cbrt-cube add-exp-log insert-posit16 log1p-expm1-u associate-/l* add-log-exp
div-sub div-inv
rem-sqrt-square clear-num sub-neg frac-2neg flip3-- pow1/2 fma-udef flip-- associate-/l/
Calls
4 calls:
Slowest
19.0ms
(/ (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2) a)
13.0ms
(- (sqrt (fma b b (* (* a c) -4))) b)
8.0ms
(sqrt (fma b b (* (* a c) -4)))
0.0ms
(fma b b (* (* a c) -4))

series219.0ms

Calls
4 calls:
Slowest
82.0ms
(/ (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2) a)
53.0ms
(- (sqrt (fma b b (* (* a c) -4))) b)
44.0ms
(fma b b (* (* a c) -4))
40.0ms
(sqrt (fma b b (* (* a c) -4)))

simplify1.3s

Calls
26 calls:
Slowest
245.0ms
(- b (* 2 (/ (* a c) b)))
139.0ms
(- (* 2 (/ (* a c) b)) (* 2 b))
76.0ms
(- (* 2 (/ (* a c) b)) b)
70.0ms
(- (pow b 2) (* 4 (* a c)))
63.0ms
(* -2 (/ (* a c) b))

prune908.0ms

Pruning

6 alts after pruning (6 fresh and 0 done)

Merged error: 5.8b

localize12.0ms

Local error

Found 4 expressions with local error:

26.1b
(sqrt (fma b b (* (* a c) -4)))
1.1b
(- (sqrt (fma b b (* (* a c) -4))) b)
0.8b
(fma b b (* (* a c) -4))
0.2b
(* (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2) (/ 1 a))

rewrite38.0ms

Algorithm
rewrite-expression-head
Rules
10×add-sqr-sqrt
*-un-lft-identity add-cube-cbrt
pow1 add-cbrt-cube fma-neg add-exp-log sqrt-prod
expm1-log1p-u associate-*r* associate-*l* insert-posit16 log1p-expm1-u add-log-exp
div-inv
frac-times rem-sqrt-square sub-neg flip3-- pow1/2 pow-prod-down associate-*l/ prod-exp associate-*r/ un-div-inv *-commutative cbrt-unprod fma-udef flip--
Calls
4 calls:
Slowest
22.0ms
(* (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2) (/ 1 a))
13.0ms
(- (sqrt (fma b b (* (* a c) -4))) b)
2.0ms
(sqrt (fma b b (* (* a c) -4)))
0.0ms
(fma b b (* (* a c) -4))

series271.0ms

Calls
4 calls:
Slowest
86.0ms
(* (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2) (/ 1 a))
74.0ms
(- (sqrt (fma b b (* (* a c) -4))) b)
72.0ms
(sqrt (fma b b (* (* a c) -4)))
39.0ms
(fma b b (* (* a c) -4))

simplify2.2s

Calls
34 calls:
Slowest
292.0ms
(* (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2) (/ 1 a))
223.0ms
(+ (log (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2)) (log (/ 1 a)))
202.0ms
(- b (* 2 (/ (* a c) b)))
194.0ms
(* (* (* (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2) (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2)) (/ (- (sqrt (fma b b (* (* a c) -4))) b) 2)) (* (* (/ 1 a) (/ 1 a)) (/ 1 a)))
140.0ms
(* (- (sqrt (fma b b (* (* a c) -4))) b) (/ 1 a))

prune959.0ms

Pruning

7 alts after pruning (6 fresh and 1 done)

Merged error: 5.8b

localize36.0ms

Local error

Found 3 expressions with local error:

26.1b
(sqrt (fma a (* -4 c) (* b b)))
1.1b
(- (sqrt (fma a (* -4 c) (* b b))) b)
0.1b
(/ (- (sqrt (fma a (* -4 c) (* b b))) b) a)

rewrite25.0ms

Algorithm
rewrite-expression-head
Rules
add-sqr-sqrt
*-un-lft-identity add-cube-cbrt
fma-neg sqrt-prod
expm1-log1p-u pow1 add-cbrt-cube add-exp-log insert-posit16 log1p-expm1-u associate-/l* add-log-exp
flip3-- flip-- associate-/l/
rem-sqrt-square clear-num sub-neg frac-2neg pow1/2 div-sub div-inv
Calls
3 calls:
Slowest
13.0ms
(/ (- (sqrt (fma a (* -4 c) (* b b))) b) a)
10.0ms
(- (sqrt (fma a (* -4 c) (* b b))) b)
2.0ms
(sqrt (fma a (* -4 c) (* b b)))

series193.0ms

Calls
3 calls:
Slowest
88.0ms
(/ (- (sqrt (fma a (* -4 c) (* b b))) b) a)
53.0ms
(- (sqrt (fma a (* -4 c) (* b b))) b)
52.0ms
(sqrt (fma a (* -4 c) (* b b)))

simplify1.0s

Calls
23 calls:
Slowest
490.0ms
(- (* (sqrt (fma a (* -4 c) (* b b))) (sqrt (fma a (* -4 c) (* b b)))) (* b b))
206.0ms
(- (pow (sqrt (fma a (* -4 c) (* b b))) 3) (pow b 3))
53.0ms
(* (cbrt (- (sqrt (fma a (* -4 c) (* b b))) b)) (cbrt (- (sqrt (fma a (* -4 c) (* b b))) b)))
39.0ms
(sqrt (- (sqrt (fma a (* -4 c) (* b b))) b))
33.0ms
(/ (sqrt (fma a (* -4 c) (* b b))) a)

prune596.0ms

Pruning

8 alts after pruning (6 fresh and 2 done)

Merged error: 5.8b

localize15.0ms

Local error

Found 4 expressions with local error:

26.1b
(sqrt (fma a (* -4 c) (* b b)))
1.1b
(- (sqrt (fma a (* -4 c) (* b b))) b)
0.2b
(/ 1 (/ a (- (sqrt (fma a (* -4 c) (* b b))) b)))
0.1b
(/ a (- (sqrt (fma a (* -4 c) (* b b))) b))

rewrite21.0ms

Algorithm
rewrite-expression-head
Rules
10×add-sqr-sqrt
associate-/r* *-un-lft-identity add-cube-cbrt
fma-neg sqrt-prod
pow1 add-exp-log associate-/r/
expm1-log1p-u add-cbrt-cube insert-posit16 log1p-expm1-u add-log-exp
flip3-- div-inv flip--
clear-num frac-2neg
rem-sqrt-square rec-exp sub-neg pow1/2 pow-flip inv-pow
Calls
4 calls:
Slowest
13.0ms
(- (sqrt (fma a (* -4 c) (* b b))) b)
3.0ms
(/ a (- (sqrt (fma a (* -4 c) (* b b))) b))
2.0ms
(/ 1 (/ a (- (sqrt (fma a (* -4 c) (* b b))) b)))
2.0ms
(sqrt (fma a (* -4 c) (* b b)))

series344.0ms

Calls
4 calls:
Slowest
157.0ms
(/ a (- (sqrt (fma a (* -4 c) (* b b))) b))
86.0ms
(/ 1 (/ a (- (sqrt (fma a (* -4 c) (* b b))) b)))
54.0ms
(- (sqrt (fma a (* -4 c) (* b b))) b)
47.0ms
(sqrt (fma a (* -4 c) (* b b)))

simplify931.0ms

Calls
34 calls:
Slowest
153.0ms
(+ (* (sqrt (fma a (* -4 c) (* b b))) (sqrt (fma a (* -4 c) (* b b)))) (+ (* b b) (* (sqrt (fma a (* -4 c) (* b b))) b)))
130.0ms
(+ (* (sqrt (fma a (* -4 c) (* b b))) (sqrt (fma a (* -4 c) (* b b)))) (+ (* b b) (* (sqrt (fma a (* -4 c) (* b b))) b)))
50.0ms
(/ 1 (- (sqrt (fma a (* -4 c) (* b b))) b))
44.0ms
(* (cbrt (sqrt (fma a (* -4 c) (* b b)))) (cbrt (sqrt (fma a (* -4 c) (* b b)))))
44.0ms
(- (sqrt (fma a (* -4 c) (* b b))) b)

prune874.0ms

Pruning

8 alts after pruning (5 fresh and 3 done)

Merged error: 5.8b

regimes313.0ms

Accuracy

85.3% (4.1b remaining)

Error of 9.5b against oracle of 5.4b and baseline of 33.6b

bsearch136.0ms

end0.0ms

sample4.3s

Algorithm
intervals
Results
1.3s1032×body2560valid
947.0ms5797×body80valid
689.0ms915×body1280valid
441.0ms2865×body80nan
336.0ms488×body640valid
155.0ms122×body5120valid
112.0ms217×body320valid
29.0ms109×body160valid