Error in 26.7s

Runtime

Time bar (total: 26.7s)Debug log

start255.0ms

Algorithm
intervals

setup136.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 30.2b

localize46.0ms

Local error

Found 4 expressions with local error:

19.0b
(sqrt (fma (* a -4) c (* b b)))
1.3b
(- (sqrt (fma (* a -4) c (* b b))) b)
0.1b
(/ (- (sqrt (fma (* a -4) c (* b b))) b) (* 2 a))
0.0b
(fma (* a -4) c (* b b))

rewrite17.0ms

Algorithm
rewrite-expression-head
Counts
4 → 67
Calls

4 calls. Slowest were:

10.0ms
(/ (- (sqrt (fma (* a -4) c (* b b))) b) (* 2 a))
5.0ms
(- (sqrt (fma (* a -4) c (* b b))) b)
1.0ms
(sqrt (fma (* a -4) c (* b b)))

series278.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

129.0ms
(/ (- (sqrt (fma (* a -4) c (* b b))) b) (* 2 a))
58.0ms
(- (sqrt (fma (* a -4) c (* b b))) b)
47.0ms
(sqrt (fma (* a -4) c (* b b)))

simplify1.5s

Counts
34 → 79
Calls

34 calls. Slowest were:

792.0ms
(- (* (sqrt (fma (* a -4) c (* b b))) (sqrt (fma (* a -4) c (* b b)))) (* b b))
89.0ms
(- (pow (sqrt (fma (* a -4) c (* b b))) 3) (pow b 3))
86.0ms
(- (log (- (sqrt (fma (* a -4) c (* b b))) b)) (log (* 2 a)))

prune1.1s

Pruning

10 alts after pruning (10 fresh and 0 done)

Merged error: 19.3b

localize6.0ms

Local error

Found 4 expressions with local error:

19.0b
(sqrt (fma (* a -4) c (* b b)))
1.3b
(- (sqrt (fma (* a -4) c (* b b))) b)
0.2b
(* (- (sqrt (fma (* a -4) c (* b b))) b) (/ 1 (* 2 a)))
0.0b
(fma (* a -4) c (* b b))

rewrite19.0ms

Algorithm
rewrite-expression-head
Counts
4 → 70
Calls

4 calls. Slowest were:

12.0ms
(* (- (sqrt (fma (* a -4) c (* b b))) b) (/ 1 (* 2 a)))
5.0ms
(- (sqrt (fma (* a -4) c (* b b))) b)
1.0ms
(sqrt (fma (* a -4) c (* b b)))

series268.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

116.0ms
(* (- (sqrt (fma (* a -4) c (* b b))) b) (/ 1 (* 2 a)))
62.0ms
(- (sqrt (fma (* a -4) c (* b b))) b)
58.0ms
(sqrt (fma (* a -4) c (* b b)))

simplify2.5s

Counts
39 → 82
Calls

39 calls. Slowest were:

395.0ms
(* (- (* (sqrt (fma (* a -4) c (* b b))) (sqrt (fma (* a -4) c (* b b)))) (* b b)) 1)
343.0ms
(* (- (pow (sqrt (fma (* a -4) c (* b b))) 3) (pow b 3)) 1)
289.0ms
(* (- (* (sqrt (fma (* a -4) c (* b b))) (sqrt (fma (* a -4) c (* b b)))) (* b b)) (/ 1 (* 2 a)))

prune1.5s

Pruning

10 alts after pruning (9 fresh and 1 done)

Merged error: 18.6b

localize24.0ms

Local error

Found 4 expressions with local error:

19.0b
(sqrt (fma (* a -4) c (* b b)))
12.3b
(* (* a (* c -4)) (/ 1/2 a))
1.0b
(+ (sqrt (fma (* a -4) c (* b b))) b)
0.1b
(/ (* (* a (* c -4)) (/ 1/2 a)) (+ (sqrt (fma (* a -4) c (* b b))) b))

rewrite46.0ms

Algorithm
rewrite-expression-head
Counts
4 → 77
Calls

4 calls. Slowest were:

27.0ms
(/ (* (* a (* c -4)) (/ 1/2 a)) (+ (sqrt (fma (* a -4) c (* b b))) b))
8.0ms
(* (* a (* c -4)) (/ 1/2 a))
7.0ms
(+ (sqrt (fma (* a -4) c (* b b))) b)

series316.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

171.0ms
(/ (* (* a (* c -4)) (/ 1/2 a)) (+ (sqrt (fma (* a -4) c (* b b))) b))
82.0ms
(+ (sqrt (fma (* a -4) c (* b b))) b)
50.0ms
(sqrt (fma (* a -4) c (* b b)))

simplify2.7s

Counts
45 → 89
Calls

45 calls. Slowest were:

356.0ms
(* (* a (* c -4)) (/ 1/2 a))
331.0ms
(/ (* (* (* (* a (* c -4)) (* a (* c -4))) (* a (* c -4))) (* (* (/ 1/2 a) (/ 1/2 a)) (/ 1/2 a))) (* (* (+ (sqrt (fma (* a -4) c (* b b))) b) (+ (sqrt (fma (* a -4) c (* b b))) b)) (+ (sqrt (fma (* a -4) c (* b b))) b)))
301.0ms
(+ (* (sqrt (fma (* a -4) c (* b b))) (sqrt (fma (* a -4) c (* b b)))) (- (* b b) (* (sqrt (fma (* a -4) c (* b b))) b)))

prune1.4s

Pruning

10 alts after pruning (9 fresh and 1 done)

Merged error: 11.4b

localize13.0ms

Local error

Found 4 expressions with local error:

19.0b
(sqrt (fma (* a -4) c (* b b)))
1.0b
(+ (sqrt (fma (* a -4) c (* b b))) b)
0.1b
(/ (* -2 c) (+ (sqrt (fma (* a -4) c (* b b))) b))
0.0b
(fma (* a -4) c (* b b))

rewrite27.0ms

Algorithm
rewrite-expression-head
Counts
4 → 65
Calls

4 calls. Slowest were:

13.0ms
(/ (* -2 c) (+ (sqrt (fma (* a -4) c (* b b))) b))
7.0ms
(+ (sqrt (fma (* a -4) c (* b b))) b)
6.0ms
(sqrt (fma (* a -4) c (* b b)))

series358.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

166.0ms
(/ (* -2 c) (+ (sqrt (fma (* a -4) c (* b b))) b))
71.0ms
(+ (sqrt (fma (* a -4) c (* b b))) b)
66.0ms
(sqrt (fma (* a -4) c (* b b)))

simplify857.0ms

Counts
34 → 77
Calls

34 calls. Slowest were:

239.0ms
(+ (* (sqrt (fma (* a -4) c (* b b))) (sqrt (fma (* a -4) c (* b b)))) (- (* b b) (* (sqrt (fma (* a -4) c (* b b))) b)))
94.0ms
(/ (* (* (* -2 c) (* -2 c)) (* -2 c)) (* (* (+ (sqrt (fma (* a -4) c (* b b))) b) (+ (sqrt (fma (* a -4) c (* b b))) b)) (+ (sqrt (fma (* a -4) c (* b b))) b)))
72.0ms
(- (log (* -2 c)) (log (+ (sqrt (fma (* a -4) c (* b b))) b)))

prune921.0ms

Pruning

9 alts after pruning (7 fresh and 2 done)

Merged error: 10.7b

regimes247.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018359 +o rules:numerics
(FPCore (a b c)
  :name "The quadratic formula (r1)"

  :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: 12.493029946439066 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