Error in 27.4s

Runtime

Time bar (total: 27.4s)Debug log

start224.0ms

Algorithm
intervals

setup150.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 16.5b

localize231.0ms

Local error

Found 4 expressions with local error:

19.0b
(sqrt (+ (* b b) (* (* -4 a) c)))
19.0b
(sqrt (+ (* b b) (* (* -4 a) c)))
1.3b
(- (sqrt (+ (* b b) (* (* -4 a) c))) b)
1.0b
(- (- b) (sqrt (+ (* b b) (* (* -4 a) c))))

rewrite41.0ms

Algorithm
rewrite-expression-head
Counts
4 → 55
Calls

4 calls. Slowest were:

21.0ms
(- (sqrt (+ (* b b) (* (* -4 a) c))) b)
9.0ms
(- (- b) (sqrt (+ (* b b) (* (* -4 a) c))))
7.0ms
(sqrt (+ (* b b) (* (* -4 a) c)))

series261.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

74.0ms
(sqrt (+ (* b b) (* (* -4 a) c)))
67.0ms
(sqrt (+ (* b b) (* (* -4 a) c)))
60.0ms
(- (sqrt (+ (* b b) (* (* -4 a) c))) b)

simplify1.7s

Counts
30 → 67
Calls

30 calls. Slowest were:

231.0ms
(sqrt (+ (pow (* b b) 3) (pow (* (* -4 a) c) 3)))
206.0ms
(sqrt (+ (pow (* b b) 3) (pow (* (* -4 a) c) 3)))
173.0ms
(sqrt (- (* (* b b) (* b b)) (* (* (* -4 a) c) (* (* -4 a) c))))

prune1.3s

Pruning

6 alts after pruning (6 fresh and 0 done)

Merged error: 6.1b

localize121.0ms

Local error

Found 4 expressions with local error:

19.0b
(sqrt (+ (* b b) (* (* -4 a) c)))
19.0b
(sqrt (+ (* b b) (* (* -4 a) c)))
19.0b
(sqrt (+ (* b b) (* (* -4 a) c)))
11.2b
(- (- b) (* (sqrt (sqrt (+ (* b b) (* (* -4 a) c)))) (sqrt (sqrt (+ (* b b) (* (* -4 a) c))))))

rewrite10.0ms

Algorithm
rewrite-expression-head
Counts
4 → 56
Calls

4 calls. Slowest were:

4.0ms
(- (- b) (* (sqrt (sqrt (+ (* b b) (* (* -4 a) c)))) (sqrt (sqrt (+ (* b b) (* (* -4 a) c))))))
2.0ms
(sqrt (+ (* b b) (* (* -4 a) c)))
2.0ms
(sqrt (+ (* b b) (* (* -4 a) c)))

series233.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

62.0ms
(sqrt (+ (* b b) (* (* -4 a) c)))
59.0ms
(- (- b) (* (sqrt (sqrt (+ (* b b) (* (* -4 a) c)))) (sqrt (sqrt (+ (* b b) (* (* -4 a) c))))))
57.0ms
(sqrt (+ (* b b) (* (* -4 a) c)))

simplify2.3s

Counts
33 → 68
Calls

33 calls. Slowest were:

267.0ms
(sqrt (+ (pow (* b b) 3) (pow (* (* -4 a) c) 3)))
263.0ms
(sqrt (+ (pow (* b b) 3) (pow (* (* -4 a) c) 3)))
253.0ms
(sqrt (+ (pow (* b b) 3) (pow (* (* -4 a) c) 3)))

prune1.6s

Pruning

6 alts after pruning (5 fresh and 1 done)

Merged error: 6.1b

localize121.0ms

Local error

Found 4 expressions with local error:

19.0b
(sqrt (+ (* b b) (* (* -4 a) c)))
19.0b
(sqrt (+ (* b b) (* (* -4 a) c)))
19.0b
(sqrt (+ (* b b) (* (* -4 a) c)))
1.3b
(- (sqrt (+ (* b b) (* (* -4 a) c))) b)

rewrite28.0ms

Algorithm
rewrite-expression-head
Counts
4 → 53
Calls

4 calls. Slowest were:

16.0ms
(- (sqrt (+ (* b b) (* (* -4 a) c))) b)
4.0ms
(sqrt (+ (* b b) (* (* -4 a) c)))
4.0ms
(sqrt (+ (* b b) (* (* -4 a) c)))

series266.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

79.0ms
(- (sqrt (+ (* b b) (* (* -4 a) c))) b)
69.0ms
(sqrt (+ (* b b) (* (* -4 a) c)))
60.0ms
(sqrt (+ (* b b) (* (* -4 a) c)))

simplify2.0s

Counts
30 → 65
Calls

30 calls. Slowest were:

236.0ms
(sqrt (+ (pow (* b b) 3) (pow (* (* -4 a) c) 3)))
222.0ms
(sqrt (+ (pow (* b b) 3) (pow (* (* -4 a) c) 3)))
199.0ms
(sqrt (+ (pow (* b b) 3) (pow (* (* -4 a) c) 3)))

prune1.4s

Pruning

6 alts after pruning (4 fresh and 2 done)

Merged error: 6.1b

localize166.0ms

Local error

Found 4 expressions with local error:

19.7b
(cbrt (+ (* b b) (* a (* -4 c))))
19.7b
(cbrt (+ (* b b) (* (* -4 a) c)))
19.0b
(sqrt (+ (* b b) (* (* -4 a) c)))
7.3b
(- (- b) (* (fabs (cbrt (+ (* b b) (* a (* -4 c))))) (sqrt (cbrt (+ (* b b) (* (* -4 a) c))))))

rewrite18.0ms

Algorithm
rewrite-expression-head
Counts
4 → 53
Calls

4 calls. Slowest were:

7.0ms
(- (- b) (* (fabs (cbrt (+ (* b b) (* a (* -4 c))))) (sqrt (cbrt (+ (* b b) (* (* -4 a) c))))))
4.0ms
(sqrt (+ (* b b) (* (* -4 a) c)))
3.0ms
(cbrt (+ (* b b) (* (* -4 a) c)))

series387.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

140.0ms
(cbrt (+ (* b b) (* a (* -4 c))))
108.0ms
(- (- b) (* (fabs (cbrt (+ (* b b) (* a (* -4 c))))) (sqrt (cbrt (+ (* b b) (* (* -4 a) c))))))
96.0ms
(cbrt (+ (* b b) (* (* -4 a) c)))

simplify2.5s

Counts
29 → 65
Calls

29 calls. Slowest were:

315.0ms
(- (exp (* 1/3 (+ (log -4) (+ (log a) (log c))))) (* 1/12 (* (exp (* 1/3 (- (log -4) (+ (* 2 (log a)) (* 2 (log c)))))) (pow b 2))))
308.0ms
(- (exp (* 1/3 (+ (log -4) (+ (log a) (log c))))) (* 1/12 (* (exp (* 1/3 (- (log -4) (+ (* 2 (log a)) (* 2 (log c)))))) (pow b 2))))
216.0ms
(cbrt (+ (pow (* b b) 3) (pow (* (* -4 a) c) 3)))

prune1.8s

Pruning

6 alts after pruning (4 fresh and 2 done)

Merged error: 6.0b

regimes348.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018359 
(FPCore (a b c)
  :name "jeff quadratic root 2"
  (if (>= b 0) (/ (* 2 c) (- (- b) (sqrt (- (* b b) (* (* 4 a) c))))) (/ (+ (- b) (sqrt (- (* b b) (* (* 4 a) c)))) (* 2 a))))

Backtrace

partition: contract violation expected: list? given: 8.538406275313497 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