Error in 18.6s

Runtime

Time bar (total: 18.6s)Debug log

start229.0ms

Algorithm
intervals

setup14.0ms

Pruning

1 alts after pruning (1 fresh and 0 done)

Merged error: 0.7b

localize11.0ms

Local error

Found 2 expressions with local error:

0.7b
(/ (exp a) (+ (exp a) (exp b)))
0.0b
(+ (exp a) (exp b))

rewrite11.0ms

Algorithm
rewrite-expression-head
Counts
2 → 45
Calls

2 calls. Slowest were:

6.0ms
(/ (exp a) (+ (exp a) (exp b)))
4.0ms
(+ (exp a) (exp b))

series102.0ms

Counts
2 → 6
Calls

2 calls. Slowest were:

79.0ms
(/ (exp a) (+ (exp a) (exp b)))
23.0ms
(+ (exp a) (exp b))

simplify409.0ms

Counts
42 → 51
Calls

42 calls. Slowest were:

178.0ms
(/ (* (* (exp a) (exp a)) (exp a)) (* (* (+ (exp a) (exp b)) (+ (exp a) (exp b))) (+ (exp a) (exp b))))
39.0ms
(+ (* (exp a) (exp a)) (- (* (exp b) (exp b)) (* (exp a) (exp b))))
36.0ms
(- (+ (* 1/4 a) 1/2) (* 1/4 b))

prune470.0ms

Pruning

3 alts after pruning (3 fresh and 0 done)

Merged error: 0.7b

localize10.0ms

Local error

Found 4 expressions with local error:

0.7b
(/ (exp a) (+ (exp a) (exp b)))
0.2b
(log (exp (/ (exp a) (+ (exp a) (exp b)))))
0.0b
(+ (exp a) (exp b))
0.0b
(exp (/ (exp a) (+ (exp a) (exp b))))

rewrite31.0ms

Algorithm
rewrite-expression-head
Counts
4 → 101
Calls

4 calls. Slowest were:

11.0ms
(log (exp (/ (exp a) (+ (exp a) (exp b)))))
9.0ms
(exp (/ (exp a) (+ (exp a) (exp b))))
7.0ms
(/ (exp a) (+ (exp a) (exp b)))

series192.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

74.0ms
(exp (/ (exp a) (+ (exp a) (exp b))))
48.0ms
(/ (exp a) (+ (exp a) (exp b)))
41.0ms
(log (exp (/ (exp a) (+ (exp a) (exp b)))))

simplify1.3s

Counts
89 → 113
Calls

89 calls. Slowest were:

270.0ms
(- (+ (* 1/4 (* a (exp 1/2))) (exp 1/2)) (* 1/4 (* b (exp 1/2))))
250.0ms
(/ (* (* (exp a) (exp a)) (exp a)) (* (* (+ (exp a) (exp b)) (+ (exp a) (exp b))) (+ (exp a) (exp b))))
68.0ms
(+ (* (exp a) (exp a)) (- (* (exp b) (exp b)) (* (exp a) (exp b))))

prune1.3s

Pruning

4 alts after pruning (3 fresh and 1 done)

Merged error: 0.6b

localize8.0ms

Local error

Found 4 expressions with local error:

0.7b
(/ (exp a) (+ (exp a) (exp b)))
0.7b
(/ (exp a) (+ (exp a) (exp b)))
0.7b
(/ (exp a) (+ (exp a) (exp b)))
0.4b
(cbrt (* (* (/ (exp a) (+ (exp a) (exp b))) (/ (exp a) (+ (exp a) (exp b)))) (/ (exp a) (+ (exp a) (exp b)))))

rewrite75.0ms

Algorithm
rewrite-expression-head
Counts
4 → 116
Calls

4 calls. Slowest were:

44.0ms
(cbrt (* (* (/ (exp a) (+ (exp a) (exp b))) (/ (exp a) (+ (exp a) (exp b)))) (/ (exp a) (+ (exp a) (exp b)))))
12.0ms
(/ (exp a) (+ (exp a) (exp b)))
11.0ms
(/ (exp a) (+ (exp a) (exp b)))

series193.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

59.0ms
(/ (exp a) (+ (exp a) (exp b)))
47.0ms
(cbrt (* (* (/ (exp a) (+ (exp a) (exp b))) (/ (exp a) (+ (exp a) (exp b)))) (/ (exp a) (+ (exp a) (exp b)))))
46.0ms
(/ (exp a) (+ (exp a) (exp b)))

simplify1.8s

Counts
123 → 128
Calls

123 calls. Slowest were:

244.0ms
(/ (* (* (exp a) (exp a)) (exp a)) (* (* (+ (exp a) (exp b)) (+ (exp a) (exp b))) (+ (exp a) (exp b))))
225.0ms
(/ (* (* (exp a) (exp a)) (exp a)) (* (* (+ (exp a) (exp b)) (+ (exp a) (exp b))) (+ (exp a) (exp b))))
222.0ms
(/ (* (* (exp a) (exp a)) (exp a)) (* (* (+ (exp a) (exp b)) (+ (exp a) (exp b))) (+ (exp a) (exp b))))

prune1.5s

Pruning

3 alts after pruning (2 fresh and 1 done)

Merged error: 0.6b

localize7.0ms

Local error

Found 4 expressions with local error:

0.7b
(/ (exp a) (+ (exp a) (exp b)))
0.7b
(/ (exp a) (+ (exp a) (exp b)))
0.7b
(/ (exp a) (+ (exp a) (exp b)))
0.7b
(/ (exp a) (+ (exp a) (exp b)))

rewrite26.0ms

Algorithm
rewrite-expression-head
Counts
4 → 132
Calls

4 calls. Slowest were:

6.0ms
(/ (exp a) (+ (exp a) (exp b)))
6.0ms
(/ (exp a) (+ (exp a) (exp b)))
6.0ms
(/ (exp a) (+ (exp a) (exp b)))

series217.0ms

Counts
4 → 12
Calls

4 calls. Slowest were:

61.0ms
(/ (exp a) (+ (exp a) (exp b)))
57.0ms
(/ (exp a) (+ (exp a) (exp b)))
55.0ms
(/ (exp a) (+ (exp a) (exp b)))

simplify1.9s

Counts
148 → 144
Calls

148 calls. Slowest were:

268.0ms
(/ (* (* (exp a) (exp a)) (exp a)) (* (* (+ (exp a) (exp b)) (+ (exp a) (exp b))) (+ (exp a) (exp b))))
242.0ms
(/ (* (* (exp a) (exp a)) (exp a)) (* (* (+ (exp a) (exp b)) (+ (exp a) (exp b))) (+ (exp a) (exp b))))
228.0ms
(/ (* (* (exp a) (exp a)) (exp a)) (* (* (+ (exp a) (exp b)) (+ (exp a) (exp b))) (+ (exp a) (exp b))))

prune1.9s

Pruning

3 alts after pruning (1 fresh and 2 done)

Merged error: 0.6b

regimes244.0ms

Please include this information when filing a bug report:

herbie shell --seed 2018359 
(FPCore (a b)
  :name "Quotient of sum of exps"

  :herbie-target
  (/ 1 (+ 1 (exp (- b a))))

  (/ (exp a) (+ (exp a) (exp b))))

Backtrace

partition: contract violation expected: list? given: 0.6378584250764306 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