Error in 32.5s

Runtime

Time bar (total: 32.5s)Debug log

start252.0ms

Algorithm
intervals

setup121.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 30.2b

localize21.0ms

Local error

Found 4 expressions with local error:

19.0b
(sqrt (- (* b b) (* (* 4 a) c)))
1.3b
(- (sqrt (- (* b b) (* (* 4 a) c))) b)
0.4b
(- (* b b) (* (* 4 a) c))
0.1b
(/ (- (sqrt (- (* b b) (* (* 4 a) c))) b) (* 2 a))

rewrite69.0ms

Algorithm
rewrite-expression-head
Counts
4 → 59
Calls

4 calls. Slowest were:

40.0ms
(/ (- (sqrt (- (* b b) (* (* 4 a) c))) b) (* 2 a))
23.0ms
(- (sqrt (- (* b b) (* (* 4 a) c))) b)
4.0ms
(- (* b b) (* (* 4 a) c))

series208.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

82.0ms
(/ (- (sqrt (- (* b b) (* (* 4 a) c))) b) (* 2 a))
54.0ms
(sqrt (- (* b b) (* (* 4 a) c)))
47.0ms
(- (sqrt (- (* b b) (* (* 4 a) c))) b)

simplify2.6s

Counts
32 → 71
Calls

32 calls. Slowest were:

454.0ms
(- b (* 2 (/ (* a c) b)))
423.0ms
(sqrt (- (pow (* b b) 3) (pow (* (* 4 a) c) 3)))
354.0ms
(- (* (sqrt (- (* b b) (* (* 4 a) c))) (sqrt (- (* b b) (* (* 4 a) c)))) (* b b))

prune1.0s

Pruning

9 alts after pruning (9 fresh and 0 done)

Merged error: 5.3b

localize12.0ms

Local error

Found 4 expressions with local error:

19.0b
(sqrt (- (* b b) (* (* 4 a) c)))
1.3b
(- (sqrt (- (* b b) (* (* 4 a) c))) b)
0.4b
(- (* b b) (* (* 4 a) c))
0.2b
(* (- (sqrt (- (* b b) (* (* 4 a) c))) b) (/ 1 (* 2 a)))

rewrite84.0ms

Algorithm
rewrite-expression-head
Counts
4 → 62
Calls

4 calls. Slowest were:

47.0ms
(* (- (sqrt (- (* b b) (* (* 4 a) c))) b) (/ 1 (* 2 a)))
28.0ms
(- (sqrt (- (* b b) (* (* 4 a) c))) b)
4.0ms
(sqrt (- (* b b) (* (* 4 a) c)))

series215.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

94.0ms
(* (- (sqrt (- (* b b) (* (* 4 a) c))) b) (/ 1 (* 2 a)))
54.0ms
(- (sqrt (- (* b b) (* (* 4 a) c))) b)
40.0ms
(sqrt (- (* b b) (* (* 4 a) c)))

simplify3.5s

Counts
37 → 74
Calls

37 calls. Slowest were:

663.0ms
(* (- (* (sqrt (- (* b b) (* (* 4 a) c))) (sqrt (- (* b b) (* (* 4 a) c)))) (* b b)) 1)
434.0ms
(sqrt (- (pow (* b b) 3) (pow (* (* 4 a) c) 3)))
259.0ms
(* (- (* (sqrt (- (* b b) (* (* 4 a) c))) (sqrt (- (* b b) (* (* 4 a) c)))) (* b b)) (/ 1 (* 2 a)))

prune1.2s

Pruning

9 alts after pruning (8 fresh and 1 done)

Merged error: 5.2b

localize38.0ms

Local error

Found 4 expressions with local error:

19.0b
(sqrt (- (* b b) (* (* 4 a) c)))
12.2b
(/ (+ (* -4 (* a c)) 0) (/ a 1/2))
1.0b
(+ (sqrt (- (* b b) (* (* 4 a) c))) b)
0.4b
(- (* b b) (* (* 4 a) c))

rewrite37.0ms

Algorithm
rewrite-expression-head
Counts
4 → 70
Calls

4 calls. Slowest were:

15.0ms
(+ (sqrt (- (* b b) (* (* 4 a) c))) b)
12.0ms
(/ (+ (* -4 (* a c)) 0) (/ a 1/2))
4.0ms
(- (* b b) (* (* 4 a) c))

series189.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

73.0ms
(+ (sqrt (- (* b b) (* (* 4 a) c))) b)
62.0ms
(sqrt (- (* b b) (* (* 4 a) c)))
44.0ms
(- (* b b) (* (* 4 a) c))

simplify4.1s

Counts
53 → 82
Calls

53 calls. Slowest were:

916.0ms
(/ (+ (* -4 (* a c)) 0) (/ a 1/2))
458.0ms
(/ (+ (* -4 (* a c)) 0) (/ 1 1/2))
405.0ms
(sqrt (- (pow (* b b) 3) (pow (* (* 4 a) c) 3)))

prune1.4s

Pruning

8 alts after pruning (7 fresh and 1 done)

Merged error: 5.2b

localize12.0ms

Local error

Found 4 expressions with local error:

19.0b
(sqrt (- (* b b) (* (* 4 a) c)))
1.0b
(+ (sqrt (- (* b b) (* (* 4 a) c))) b)
0.4b
(- (* b b) (* (* 4 a) c))
0.1b
(/ (* -2 c) (+ (sqrt (- (* b b) (* (* 4 a) c))) b))

rewrite39.0ms

Algorithm
rewrite-expression-head
Counts
4 → 57
Calls

4 calls. Slowest were:

15.0ms
(/ (* -2 c) (+ (sqrt (- (* b b) (* (* 4 a) c))) b))
15.0ms
(+ (sqrt (- (* b b) (* (* 4 a) c))) b)
4.0ms
(- (* b b) (* (* 4 a) c))

series313.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

156.0ms
(/ (* -2 c) (+ (sqrt (- (* b b) (* (* 4 a) c))) b))
63.0ms
(sqrt (- (* b b) (* (* 4 a) c)))
52.0ms
(+ (sqrt (- (* b b) (* (* 4 a) c))) b)

simplify2.2s

Counts
32 → 69
Calls

32 calls. Slowest were:

470.0ms
(sqrt (- (pow (* b b) 3) (pow (* (* 4 a) c) 3)))
269.0ms
(+ (* (sqrt (- (* b b) (* (* 4 a) c))) (sqrt (- (* b b) (* (* 4 a) c)))) (- (* b b) (* (sqrt (- (* b b) (* (* 4 a) c))) b)))
179.0ms
(- (* 2 b) (* 2 (/ (* a c) b)))

prune907.0ms

Pruning

8 alts after pruning (6 fresh and 2 done)

Merged error: 5.2b

regimes301.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018359 
(FPCore (a b c)
  :name "quadp (p42, positive)"

  :herbie-target
  (if (< b 0) (/ (+ (- b) (sqrt (- (* b b) (* 4 (* a c))))) (* 2 a)) (/ c (* a (/ (- (- b) (sqrt (- (* b b) (* 4 (* a c))))) (* 2 a)))))

  (/ (+ (- b) (sqrt (- (* b b) (* 4 (* a c))))) (* 2 a)))

Backtrace

partition: contract violation expected: list? given: 6.264259531210973 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