Error in 35.0s

Runtime

Time bar (total: 35.0s)Debug log

start130.0ms

Algorithm
intervals

setup87.0ms

Pruning

2 alts after pruning (2 fresh and 0 done)

Merged error: 32.9b

localize17.0ms

Local error

Found 2 expressions with local error:

5.4b
(+ (- (exp x) 2) (exp (- x)))
0.0b
(- (exp x) 2)

rewrite17.0ms

Algorithm
rewrite-expression-head
Counts
2 → 40
Calls

2 calls. Slowest were:

14.0ms
(+ (- (exp x) 2) (exp (- x)))
3.0ms
(- (exp x) 2)

series99.0ms

Counts
2 → 6
Calls

2 calls. Slowest were:

85.0ms
(+ (- (exp x) 2) (exp (- x)))
14.0ms
(- (exp x) 2)

simplify1.6s

Counts
23 → 46
Calls

23 calls. Slowest were:

382.0ms
(+ (* (- (pow (exp x) 3) (pow 2 3)) (exp x)) (* (+ (* (exp x) (exp x)) (+ (* 2 2) (* (exp x) 2))) (exp 0)))
306.0ms
(+ (* (- (pow (exp x) 3) (pow 2 3)) (exp x)) (* (+ (* (exp x) (exp x)) (+ (* 2 2) (* (exp x) 2))) 1))
236.0ms
(+ (* (- (* (exp x) (exp x)) (* 2 2)) (exp x)) (* (+ (exp x) 2) (exp 0)))

prune449.0ms

Pruning

4 alts after pruning (4 fresh and 0 done)

Merged error: 0.0b

localize20.0ms

Local error

Found 2 expressions with local error:

0.0b
(fma 1/12 (pow x 4) (fma 1/360 (pow x 6) (* x x)))
0.0b
(fma 1/360 (pow x 6) (* x x))

rewrite1.0ms

Algorithm
rewrite-expression-head
Counts
2 → 20
Calls

2 calls. Slowest were:

0.0ms
(fma 1/12 (pow x 4) (fma 1/360 (pow x 6) (* x x)))
0.0ms
(fma 1/360 (pow x 6) (* x x))

series79.0ms

Counts
2 → 6
Calls

2 calls. Slowest were:

56.0ms
(fma 1/360 (pow x 6) (* x x))
23.0ms
(fma 1/12 (pow x 4) (fma 1/360 (pow x 6) (* x x)))

simplify115.0ms

Counts
6 → 26
Calls

6 calls. Slowest were:

28.0ms
(+ (pow x 2) (+ (* 1/12 (pow x 4)) (* 1/360 (pow x 6))))
28.0ms
(+ (pow x 2) (+ (* 1/12 (pow x 4)) (* 1/360 (pow x 6))))
27.0ms
(+ (pow x 2) (+ (* 1/12 (pow x 4)) (* 1/360 (pow x 6))))

prune388.0ms

Pruning

4 alts after pruning (3 fresh and 1 done)

Merged error: 0.0b

localize60.0ms

Local error

Found 4 expressions with local error:

5.6b
(+ (fma (exp x) -8 (fma 2 (exp x) 4)) (fma (exp (+ x x)) (exp (+ x x)) (exp (+ x x))))
0.1b
(fma (exp x) -8 (fma 2 (exp x) 4))
0.0b
(* (exp x) (exp x))
0.0b
(/ (+ (fma (exp x) -8 (fma 2 (exp x) 4)) (fma (exp (+ x x)) (exp (+ x x)) (exp (+ x x)))) (fma (+ (exp x) 2) (* (exp x) (exp x)) (* 4 (exp x))))

rewrite40.0ms

Algorithm
rewrite-expression-head
Counts
4 → 86
Calls

4 calls. Slowest were:

20.0ms
(/ (+ (fma (exp x) -8 (fma 2 (exp x) 4)) (fma (exp (+ x x)) (exp (+ x x)) (exp (+ x x)))) (fma (+ (exp x) 2) (* (exp x) (exp x)) (* 4 (exp x))))
13.0ms
(* (exp x) (exp x))
6.0ms
(+ (fma (exp x) -8 (fma 2 (exp x) 4)) (fma (exp (+ x x)) (exp (+ x x)) (exp (+ x x))))

series465.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

302.0ms
(/ (+ (fma (exp x) -8 (fma 2 (exp x) 4)) (fma (exp (+ x x)) (exp (+ x x)) (exp (+ x x)))) (fma (+ (exp x) 2) (* (exp x) (exp x)) (* 4 (exp x))))
118.0ms
(+ (fma (exp x) -8 (fma 2 (exp x) 4)) (fma (exp (+ x x)) (exp (+ x x)) (exp (+ x x))))
31.0ms
(fma (exp x) -8 (fma 2 (exp x) 4))

simplify9.9s

Counts
62 → 98
Calls

62 calls. Slowest were:

442.0ms
(+ (pow (fma (exp x) -8 (fma 2 (exp x) 4)) 3) (pow (fma (exp (+ x x)) (exp (+ x x)) (exp (+ x x))) 3))
441.0ms
(- (+ (pow (exp (* 2 x)) 2) (+ (exp (* 2 x)) 4)) (* 6 (exp x)))
436.0ms
(- (+ (pow (exp (* 2 x)) 2) (+ (exp (* 2 x)) 4)) (* 6 (exp x)))

prune1.9s

Pruning

4 alts after pruning (3 fresh and 1 done)

Merged error: 0.0b

localize16.0ms

Local error

Found 4 expressions with local error:

5.6b
(+ (fma (exp x) -6 4) (fma (exp (+ x x)) (exp (+ x x)) (exp (+ x x))))
0.1b
(fma (exp x) -6 4)
0.0b
(* (exp x) (exp x))
0.0b
(/ (+ (fma (exp x) -6 4) (fma (exp (+ x x)) (exp (+ x x)) (exp (+ x x)))) (fma (+ (exp x) 2) (* (exp x) (exp x)) (* 4 (exp x))))

rewrite26.0ms

Algorithm
rewrite-expression-head
Counts
4 → 86
Calls

4 calls. Slowest were:

12.0ms
(/ (+ (fma (exp x) -6 4) (fma (exp (+ x x)) (exp (+ x x)) (exp (+ x x)))) (fma (+ (exp x) 2) (* (exp x) (exp x)) (* 4 (exp x))))
7.0ms
(+ (fma (exp x) -6 4) (fma (exp (+ x x)) (exp (+ x x)) (exp (+ x x))))
5.0ms
(* (exp x) (exp x))

series455.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

341.0ms
(/ (+ (fma (exp x) -6 4) (fma (exp (+ x x)) (exp (+ x x)) (exp (+ x x)))) (fma (+ (exp x) 2) (* (exp x) (exp x)) (* 4 (exp x))))
81.0ms
(+ (fma (exp x) -6 4) (fma (exp (+ x x)) (exp (+ x x)) (exp (+ x x))))
18.0ms
(fma (exp x) -6 4)

simplify10.9s

Counts
62 → 98
Calls

62 calls. Slowest were:

716.0ms
(/ (sqrt (+ (fma (exp x) -6 4) (fma (exp (+ x x)) (exp (+ x x)) (exp (+ x x))))) (* (cbrt (fma (+ (exp x) 2) (* (exp x) (exp x)) (* 4 (exp x)))) (cbrt (fma (+ (exp x) 2) (* (exp x) (exp x)) (* 4 (exp x))))))
492.0ms
(- (+ (pow (exp (* 2 x)) 2) (+ (exp (* 2 x)) 4)) (* 6 (exp x)))
487.0ms
(/ (- (+ (pow (exp (* 2 x)) 2) (+ (exp (* 2 x)) 4)) (* 6 (exp x))) (+ (* 2 (pow (exp x) 2)) (+ (pow (exp x) 3) (* 4 (exp x)))))

prune1.6s

Pruning

4 alts after pruning (3 fresh and 1 done)

Merged error: 0.0b

regimes33.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018359 +o rules:numerics
(FPCore (x)
  :name "exp2 (problem 3.3.7)"

  :herbie-target
  (* 4 (pow (sinh (/ x 2)) 2))

  (+ (- (exp x) 2) (exp (- x))))

Backtrace

partition: contract violation expected: list? given: 0.6538730675578193 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