Error in 27.5s

Runtime

Time bar (total: 27.5s)Debug logProfile

start329.0ms

Algorithm
intervals

setup91.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 33.3b

localize25.0ms

Local error

Found 4 expressions with local error:

22.9b
(sqrt (- (* b b) (* (* c a) 4)))
0.8b
(- (* b b) (* (* c a) 4))
0.7b
(- (sqrt (- (* b b) (* (* c a) 4))) b)
0.1b
(/ (- (sqrt (- (* b b) (* (* c a) 4))) b) (* 2 a))

rewrite47.0ms

Algorithm
rewrite-expression-head
Counts
4 → 59
Calls

4 calls. Slowest were:

24.0ms
(/ (- (sqrt (- (* b b) (* (* c a) 4))) b) (* 2 a))
14.0ms
(- (sqrt (- (* b b) (* (* c a) 4))) b)
4.0ms
(- (* b b) (* (* c a) 4))

series646.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

452.0ms
(- (sqrt (- (* b b) (* (* c a) 4))) b)
89.0ms
(/ (- (sqrt (- (* b b) (* (* c a) 4))) b) (* 2 a))
63.0ms
(sqrt (- (* b b) (* (* c a) 4)))

simplify2.2s

Counts
32 → 71
Calls

32 calls. Slowest were:

360.0ms
(- (* (sqrt (- (* b b) (* (* c a) 4))) (sqrt (- (* b b) (* (* c a) 4)))) (* b b))
314.0ms
(sqrt (- (pow (* b b) 3) (pow (* (* c a) 4) 3)))
282.0ms
(- (pow (sqrt (- (* b b) (* (* c a) 4))) 3) (pow b 3))

prune1.1s

Pruning

10 alts after pruning (10 fresh and 0 done)

Merged error: 7.1b

localize8.0ms

Local error

Found 4 expressions with local error:

22.9b
(sqrt (- (* b b) (* (* c a) 4)))
0.8b
(- (* b b) (* (* c a) 4))
0.7b
(- (sqrt (- (* b b) (* (* c a) 4))) b)
0.1b
(/ (/ (- (sqrt (- (* b b) (* (* c a) 4))) b) 2) a)

rewrite45.0ms

Algorithm
rewrite-expression-head
Counts
4 → 53
Calls

4 calls. Slowest were:

30.0ms
(/ (/ (- (sqrt (- (* b b) (* (* c a) 4))) b) 2) a)
10.0ms
(- (sqrt (- (* b b) (* (* c a) 4))) b)
2.0ms
(- (* b b) (* (* c a) 4))

series220.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

66.0ms
(sqrt (- (* b b) (* (* c a) 4)))
66.0ms
(- (sqrt (- (* b b) (* (* c a) 4))) b)
60.0ms
(/ (/ (- (sqrt (- (* b b) (* (* c a) 4))) b) 2) a)

simplify1.5s

Counts
24 → 65
Calls

24 calls. Slowest were:

471.0ms
(sqrt (- (pow (* b b) 3) (pow (* (* c a) 4) 3)))
192.0ms
(sqrt (- (* (* b b) (* b b)) (* (* (* c a) 4) (* (* c a) 4))))
114.0ms
(- b (* 2 (/ (* a c) b)))

prune786.0ms

Pruning

9 alts after pruning (8 fresh and 1 done)

Merged error: 7.1b

localize12.0ms

Local error

Found 4 expressions with local error:

22.9b
(sqrt (- (* b b) (* (* c a) 4)))
0.8b
(- (* b b) (* (* c a) 4))
0.7b
(- (sqrt (- (* b b) (* (* c a) 4))) b)
0.2b
(* (/ (- (sqrt (- (* b b) (* (* c a) 4))) b) 2) (/ 1 a))

rewrite62.0ms

Algorithm
rewrite-expression-head
Counts
4 → 60
Calls

4 calls. Slowest were:

31.0ms
(* (/ (- (sqrt (- (* b b) (* (* c a) 4))) b) 2) (/ 1 a))
23.0ms
(- (sqrt (- (* b b) (* (* c a) 4))) b)
4.0ms
(- (* b b) (* (* c a) 4))

series231.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

76.0ms
(* (/ (- (sqrt (- (* b b) (* (* c a) 4))) b) 2) (/ 1 a))
72.0ms
(- (sqrt (- (* b b) (* (* c a) 4))) b)
49.0ms
(sqrt (- (* b b) (* (* c a) 4)))

simplify2.0s

Counts
32 → 72
Calls

32 calls. Slowest were:

403.0ms
(sqrt (- (pow (* b b) 3) (pow (* (* c a) 4) 3)))
205.0ms
(* (/ (- (sqrt (- (* b b) (* (* c a) 4))) b) 2) (/ 1 a))
169.0ms
(sqrt (- (* (* b b) (* b b)) (* (* (* c a) 4) (* (* c a) 4))))

prune1.1s

Pruning

9 alts after pruning (7 fresh and 2 done)

Merged error: 7.1b

localize9.0ms

Local error

Found 4 expressions with local error:

22.9b
(sqrt (- (* b b) (* (* c a) 4)))
22.9b
(sqrt (- (* b b) (* (* c a) 4)))
0.8b
(- (* b b) (* (* c a) 4))
0.8b
(- (* b b) (* (* c a) 4))

rewrite9.0ms

Algorithm
rewrite-expression-head
Counts
4 → 52
Calls

4 calls. Slowest were:

2.0ms
(sqrt (- (* b b) (* (* c a) 4)))
2.0ms
(- (* b b) (* (* c a) 4))
2.0ms
(- (* b b) (* (* c a) 4))

series192.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

63.0ms
(sqrt (- (* b b) (* (* c a) 4)))
49.0ms
(sqrt (- (* b b) (* (* c a) 4)))
42.0ms
(- (* b b) (* (* c a) 4))

simplify2.2s

Counts
26 → 64
Calls

26 calls. Slowest were:

425.0ms
(sqrt (- (pow (* b b) 3) (pow (* (* c a) 4) 3)))
424.0ms
(sqrt (- (pow (* b b) 3) (pow (* (* c a) 4) 3)))
175.0ms
(- b (* 2 (/ (* a c) b)))

prune1.0s

Pruning

9 alts after pruning (6 fresh and 3 done)

Merged error: 7.1b

regimes438.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018357 
(FPCore (a b c)
  :name "Quadratic roots, full range"
  (/ (+ (- b) (sqrt (- (* b b) (* (* 4 a) c)))) (* 2 a)))

Backtrace

partition: contract violation expected: list? given: 9.846299490204428 argument position: 2nd other arguments...: #<procedure:ordinary-value?>LC
partition/home/p92/racket/collects/racket/list.rkt5550
errors-score/data/pavpan/nightlies/herbie/develop/src/points.rkt3220
for-loop/data/pavpan/nightlies/herbie/develop/src/sandbox.rkt7512
(unnamed)/home/p92/racket/collects/racket/private/more-scheme.rkt26128
run/home/p92/racket/share/pkgs/profile-lib/main.rkt392
profile-thunk16/home/p92/racket/share/pkgs/profile-lib/main.rkt90
(unnamed)/home/p92/racket/collects/racket/private/more-scheme.rkt26128