Error in 33.5s

Runtime

Time bar (total: 33.5s)Debug log

start285.0ms

Algorithm
intervals

setup294.0ms

Pruning

2 alts after pruning (2 fresh and 0 done)

Merged error: 3.2b

localize39.0ms

Local error

Found 4 expressions with local error:

5.4b
(* (* x cos) sin)
5.4b
(* (* x cos) sin)
0.4b
(/ (cos (* 2 x)) (* (* (* x cos) sin) (* (* x cos) sin)))
0.3b
(* (* (* x cos) sin) (* (* x cos) sin))

rewrite59.0ms

Algorithm
rewrite-expression-head
Counts
4 → 56
Calls

4 calls. Slowest were:

29.0ms
(/ (cos (* 2 x)) (* (* (* x cos) sin) (* (* x cos) sin)))
20.0ms
(* (* (* x cos) sin) (* (* x cos) sin))
5.0ms
(* (* x cos) sin)

series174.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

78.0ms
(/ (cos (* 2 x)) (* (* (* x cos) sin) (* (* x cos) sin)))
46.0ms
(* (* (* x cos) sin) (* (* x cos) sin))
30.0ms
(* (* x cos) sin)

simplify4.1s

Counts
33 → 68
Calls

33 calls. Slowest were:

666.0ms
(* (* (* (* (* x cos) sin) (* (* x cos) sin)) (* (* x cos) sin)) (* (* (* (* x cos) sin) (* (* x cos) sin)) (* (* x cos) sin)))
419.0ms
(- (log (cos (* 2 x))) (log (* (* (* x cos) sin) (* (* x cos) sin))))
402.0ms
(/ (* (cos x) (cos x)) (* (* (* x cos) sin) (* (* x cos) sin)))

prune841.0ms

Pruning

13 alts after pruning (12 fresh and 1 done)

Merged error: 1.6b

localize6.0ms

Local error

Found 4 expressions with local error:

5.4b
(* (* x cos) sin)
5.4b
(* (* x cos) sin)
1.2b
(/ (cos (* 2 x)) (* (* x cos) sin))
0.2b
(/ (/ (cos (* 2 x)) (* (* x cos) sin)) (* (* x cos) sin))

rewrite39.0ms

Algorithm
rewrite-expression-head
Counts
4 → 69
Calls

4 calls. Slowest were:

17.0ms
(/ (/ (cos (* 2 x)) (* (* x cos) sin)) (* (* x cos) sin))
12.0ms
(/ (cos (* 2 x)) (* (* x cos) sin))
4.0ms
(* (* x cos) sin)

series133.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

63.0ms
(/ (/ (cos (* 2 x)) (* (* x cos) sin)) (* (* x cos) sin))
35.0ms
(/ (cos (* 2 x)) (* (* x cos) sin))
19.0ms
(* (* x cos) sin)

simplify4.4s

Counts
49 → 81
Calls

49 calls. Slowest were:

663.0ms
(- (- (log (cos (* 2 x))) (log (* (* x cos) sin))) (log (* (* x cos) sin)))
600.0ms
(/ (/ (* (cos x) (cos x)) (* (* x cos) sin)) (* (* x cos) sin))
472.0ms
(- (log (/ (cos (* 2 x)) (* (* x cos) sin))) (log (* (* x cos) sin)))

prune1.2s

Pruning

13 alts after pruning (12 fresh and 1 done)

Merged error: 1.5b

localize15.0ms

Local error

Found 4 expressions with local error:

5.4b
(* (* x cos) sin)
5.4b
(* (* x cos) sin)
1.3b
(/ (cbrt (cos (* 2 x))) (* (* x cos) sin))
1.2b
(/ (* (cbrt (cos (* 2 x))) (cbrt (cos (* 2 x)))) (* (* x cos) sin))

rewrite20.0ms

Algorithm
rewrite-expression-head
Counts
4 → 60
Calls

4 calls. Slowest were:

10.0ms
(/ (* (cbrt (cos (* 2 x))) (cbrt (cos (* 2 x)))) (* (* x cos) sin))
5.0ms
(/ (cbrt (cos (* 2 x))) (* (* x cos) sin))
3.0ms
(* (* x cos) sin)

series259.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

109.0ms
(/ (cbrt (cos (* 2 x))) (* (* x cos) sin))
94.0ms
(/ (* (cbrt (cos (* 2 x))) (cbrt (cos (* 2 x)))) (* (* x cos) sin))
28.0ms
(* (* x cos) sin)

simplify1.9s

Counts
38 → 72
Calls

38 calls. Slowest were:

382.0ms
(- (log (* (cbrt (cos (* 2 x))) (cbrt (cos (* 2 x))))) (log (* (* x cos) sin)))
359.0ms
(- (+ (log (cbrt (cos (* 2 x)))) (log (cbrt (cos (* 2 x))))) (log (* (* x cos) sin)))
264.0ms
(/ (* (* (* (cbrt (cos (* 2 x))) (cbrt (cos (* 2 x)))) (* (cbrt (cos (* 2 x))) (cbrt (cos (* 2 x))))) (* (cbrt (cos (* 2 x))) (cbrt (cos (* 2 x))))) (* (* (* (* x cos) sin) (* (* x cos) sin)) (* (* x cos) sin)))

prune953.0ms

Pruning

13 alts after pruning (11 fresh and 2 done)

Merged error: 1.5b

localize12.0ms

Local error

Found 4 expressions with local error:

20.9b
(cbrt (/ (/ (cos (* 2 x)) (* (* x cos) sin)) (* (* x cos) sin)))
20.9b
(cbrt (/ (/ (cos (* 2 x)) (* (* x cos) sin)) (* (* x cos) sin)))
20.9b
(cbrt (/ (/ (cos (* 2 x)) (* (* x cos) sin)) (* (* x cos) sin)))
5.4b
(* (* x cos) sin)

rewrite22.0ms

Algorithm
rewrite-expression-head
Counts
4 → 69
Calls

4 calls. Slowest were:

6.0ms
(cbrt (/ (/ (cos (* 2 x)) (* (* x cos) sin)) (* (* x cos) sin)))
6.0ms
(cbrt (/ (/ (cos (* 2 x)) (* (* x cos) sin)) (* (* x cos) sin)))
4.0ms
(* (* x cos) sin)

series638.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

213.0ms
(cbrt (/ (/ (cos (* 2 x)) (* (* x cos) sin)) (* (* x cos) sin)))
207.0ms
(cbrt (/ (/ (cos (* 2 x)) (* (* x cos) sin)) (* (* x cos) sin)))
190.0ms
(cbrt (/ (/ (cos (* 2 x)) (* (* x cos) sin)) (* (* x cos) sin)))

simplify5.1s

Counts
48 → 81
Calls

48 calls. Slowest were:

340.0ms
(cbrt (/ (/ (* (cbrt (cos (* 2 x))) (cbrt (cos (* 2 x)))) (* x cos)) (* x cos)))
313.0ms
(cbrt (/ (/ (* (cbrt (cos (* 2 x))) (cbrt (cos (* 2 x)))) (* x cos)) (* x cos)))
308.0ms
(cbrt (* (cbrt (/ (/ (cos (* 2 x)) (* (* x cos) sin)) (* (* x cos) sin))) (cbrt (/ (/ (cos (* 2 x)) (* (* x cos) sin)) (* (* x cos) sin)))))

prune1.5s

Pruning

14 alts after pruning (11 fresh and 3 done)

Merged error: 1.5b

regimes366.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018359 
(FPCore (x cos sin)
  :name "cos(2*x)/(cos^2(x)*sin^2(x))"
  (/ (cos (* 2 x)) (* (pow cos 2) (* (* x (pow sin 2)) x))))

Backtrace

partition: contract violation expected: list? given: 2.8495398238087626 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