Error in 27.5s

Runtime

Time bar (total: 27.5s)Debug log

start219.0ms

Algorithm
intervals

setup168.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 16.9b

localize154.0ms

Local error

Found 4 expressions with local error:

19.8b
(sqrt (+ (* (* -4 a) c) (* b b)))
19.8b
(sqrt (+ (* (* -4 a) c) (* b b)))
1.3b
(- (sqrt (+ (* (* -4 a) c) (* b b))) b)
0.9b
(- (- b) (sqrt (+ (* (* -4 a) c) (* b b))))

rewrite31.0ms

Algorithm
rewrite-expression-head
Counts
4 → 55
Calls

4 calls. Slowest were:

17.0ms
(- (sqrt (+ (* (* -4 a) c) (* b b))) b)
7.0ms
(- (- b) (sqrt (+ (* (* -4 a) c) (* b b))))
3.0ms
(sqrt (+ (* (* -4 a) c) (* b b)))

series268.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

79.0ms
(- (sqrt (+ (* (* -4 a) c) (* b b))) b)
70.0ms
(- (- b) (sqrt (+ (* (* -4 a) c) (* b b))))
70.0ms
(sqrt (+ (* (* -4 a) c) (* b b)))

simplify1.3s

Counts
30 → 67
Calls

30 calls. Slowest were:

270.0ms
(sqrt (- (* (* (* -4 a) c) (* (* -4 a) c)) (* (* b b) (* b b))))
245.0ms
(sqrt (+ (pow (* (* -4 a) c) 3) (pow (* b b) 3)))
226.0ms
(sqrt (- (* (* (* -4 a) c) (* (* -4 a) c)) (* (* b b) (* b b))))

prune1.3s

Pruning

11 alts after pruning (11 fresh and 0 done)

Merged error: 11.7b

localize120.0ms

Local error

Found 4 expressions with local error:

19.8b
(sqrt (+ (* (* -4 a) c) (* b b)))
19.8b
(sqrt (+ (* (* -4 a) c) (* b b)))
19.8b
(sqrt (+ (* (* -4 a) c) (* b b)))
1.3b
(- (sqrt (+ (* (* -4 a) c) (* b b))) b)

rewrite25.0ms

Algorithm
rewrite-expression-head
Counts
4 → 53
Calls

4 calls. Slowest were:

15.0ms
(- (sqrt (+ (* (* -4 a) c) (* b b))) b)
3.0ms
(sqrt (+ (* (* -4 a) c) (* b b)))
3.0ms
(sqrt (+ (* (* -4 a) c) (* b b)))

series266.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

78.0ms
(- (sqrt (+ (* (* -4 a) c) (* b b))) b)
69.0ms
(sqrt (+ (* (* -4 a) c) (* b b)))
67.0ms
(sqrt (+ (* (* -4 a) c) (* b b)))

simplify1.6s

Counts
30 → 65
Calls

30 calls. Slowest were:

283.0ms
(sqrt (+ (pow (* (* -4 a) c) 3) (pow (* b b) 3)))
276.0ms
(sqrt (- (* (* (* -4 a) c) (* (* -4 a) c)) (* (* b b) (* b b))))
245.0ms
(sqrt (- (* (* (* -4 a) c) (* (* -4 a) c)) (* (* b b) (* b b))))

prune1.5s

Pruning

11 alts after pruning (10 fresh and 1 done)

Merged error: 11.7b

localize134.0ms

Local error

Found 4 expressions with local error:

19.8b
(sqrt (+ (* (* -4 a) c) (* b b)))
19.8b
(sqrt (+ (* (* -4 a) c) (* b b)))
19.8b
(sqrt (+ (* (* -4 a) c) (* b b)))
15.4b
(- (- b) (* (sqrt (sqrt (+ (* (* -4 a) c) (* b b)))) (sqrt (sqrt (+ (* (* -4 a) c) (* b b))))))

rewrite33.0ms

Algorithm
rewrite-expression-head
Counts
4 → 56
Calls

4 calls. Slowest were:

12.0ms
(sqrt (+ (* (* -4 a) c) (* b b)))
7.0ms
(- (- b) (* (sqrt (sqrt (+ (* (* -4 a) c) (* b b)))) (sqrt (sqrt (+ (* (* -4 a) c) (* b b))))))
6.0ms
(sqrt (+ (* (* -4 a) c) (* b b)))

series250.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

76.0ms
(- (- b) (* (sqrt (sqrt (+ (* (* -4 a) c) (* b b)))) (sqrt (sqrt (+ (* (* -4 a) c) (* b b))))))
67.0ms
(sqrt (+ (* (* -4 a) c) (* b b)))
56.0ms
(sqrt (+ (* (* -4 a) c) (* b b)))

simplify1.7s

Counts
33 → 68
Calls

33 calls. Slowest were:

246.0ms
(sqrt (- (* (* (* -4 a) c) (* (* -4 a) c)) (* (* b b) (* b b))))
242.0ms
(sqrt (- (* (* (* -4 a) c) (* (* -4 a) c)) (* (* b b) (* b b))))
222.0ms
(sqrt (+ (pow (* (* -4 a) c) 3) (pow (* b b) 3)))

prune1.6s

Pruning

11 alts after pruning (9 fresh and 2 done)

Merged error: 11.7b

localize136.0ms

Local error

Found 4 expressions with local error:

20.5b
(cbrt (+ (* (* -4 a) c) (* b b)))
20.5b
(cbrt (+ (* b b) (* (* c a) -4)))
19.8b
(sqrt (+ (* (* -4 a) c) (* b b)))
19.8b
(sqrt (+ (* (* -4 a) c) (* b b)))

rewrite21.0ms

Algorithm
rewrite-expression-head
Counts
4 → 54
Calls

4 calls. Slowest were:

7.0ms
(sqrt (+ (* (* -4 a) c) (* b b)))
6.0ms
(sqrt (+ (* (* -4 a) c) (* b b)))
5.0ms
(cbrt (+ (* (* -4 a) c) (* b b)))

series448.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

238.0ms
(cbrt (+ (* (* -4 a) c) (* b b)))
104.0ms
(cbrt (+ (* b b) (* (* c a) -4)))
55.0ms
(sqrt (+ (* (* -4 a) c) (* b b)))

simplify2.9s

Counts
34 → 66
Calls

34 calls. Slowest were:

429.0ms
(exp (* 1/3 (- (log -4) (+ (log (/ 1 a)) (log (/ 1 c))))))
292.0ms
(sqrt (- (* (* (* -4 a) c) (* (* -4 a) c)) (* (* b b) (* b b))))
289.0ms
(- (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))))

prune2.3s

Pruning

11 alts after pruning (8 fresh and 3 done)

Merged error: 11.7b

regimes597.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018359 
(FPCore (a b c)
  :name "jeff quadratic root 1"
  (if (>= b 0) (/ (- (- b) (sqrt (- (* b b) (* (* 4 a) c)))) (* 2 a)) (/ (* 2 c) (+ (- b) (sqrt (- (* b b) (* (* 4 a) c)))))))

Backtrace

partition: contract violation expected: list? given: 13.07703194204781 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