0.859 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.051 * * * [progress]: [2/2] Setting up program.
0.053 * [progress]: [Phase 2 of 3] Improving.
0.053 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ (- 1.0 (cos x)) (* x x))
0.054 * * [simplify]: iteration  0 :  6  enodes  (cost  8 )
0.055 * * [simplify]: iteration  1 :  13  enodes  (cost  8 )
0.056 * * [simplify]: iteration  2 :  21  enodes  (cost  8 )
0.068 * * [simplify]: iteration  3 :  26  enodes  (cost  8 )
0.071 * * [simplify]: iteration  4 :  29  enodes  (cost  8 )
0.074 * * [simplify]: iteration  done :  29  enodes  (cost  8 )
0.074 * [simplify]: Simplified to:
   (/ (- 1.0 (cos x)) (* x x))
0.074 * * [progress]: iteration 1 / 4
0.074 * * * [progress]: picking best candidate
0.075 * * * * [pick]: Picked  #<alt (λ (x) (/ (- 1.0 (cos x)) (* x x)))>
0.076 * * * [progress]: localizing error
0.082 * * * [progress]: generating rewritten candidates
0.082 * * * * [progress]: [ 1 / 2 ] rewriting at (2)
0.091 * * * * [progress]: [ 2 / 2 ] rewriting at (2 1)
0.096 * * * [progress]: generating series expansions
0.096 * * * * [progress]: [ 1 / 2 ] generating series at (2)
0.097 * [approximate]: Taking taylor expansion of (/ (- 1.0 (cos x)) (pow x 2)) in (x) around 0
0.097 * [taylor]: Taking taylor expansion of (/ (- 1.0 (cos x)) (pow x 2)) in x
0.097 * [taylor]: Taking taylor expansion of (- 1.0 (cos x)) in x
0.097 * [taylor]: Taking taylor expansion of 1.0 in x
0.097 * [taylor]: Taking taylor expansion of (cos x) in x
0.097 * [taylor]: Taking taylor expansion of x in x
0.097 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.097 * [taylor]: Taking taylor expansion of x in x
0.100 * [taylor]: Taking taylor expansion of (/ (- 1.0 (cos x)) (pow x 2)) in x
0.100 * [taylor]: Taking taylor expansion of (- 1.0 (cos x)) in x
0.100 * [taylor]: Taking taylor expansion of 1.0 in x
0.100 * [taylor]: Taking taylor expansion of (cos x) in x
0.100 * [taylor]: Taking taylor expansion of x in x
0.100 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.100 * [taylor]: Taking taylor expansion of x in x
0.114 * [approximate]: Taking taylor expansion of (* (pow x 2) (- 1.0 (cos (/ 1 x)))) in (x) around 0
0.114 * [taylor]: Taking taylor expansion of (* (pow x 2) (- 1.0 (cos (/ 1 x)))) in x
0.114 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.114 * [taylor]: Taking taylor expansion of x in x
0.114 * [taylor]: Taking taylor expansion of (- 1.0 (cos (/ 1 x))) in x
0.114 * [taylor]: Taking taylor expansion of 1.0 in x
0.114 * [taylor]: Taking taylor expansion of (cos (/ 1 x)) in x
0.114 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.114 * [taylor]: Taking taylor expansion of x in x
0.115 * [taylor]: Taking taylor expansion of (* (pow x 2) (- 1.0 (cos (/ 1 x)))) in x
0.115 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.115 * [taylor]: Taking taylor expansion of x in x
0.115 * [taylor]: Taking taylor expansion of (- 1.0 (cos (/ 1 x))) in x
0.115 * [taylor]: Taking taylor expansion of 1.0 in x
0.115 * [taylor]: Taking taylor expansion of (cos (/ 1 x)) in x
0.115 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.115 * [taylor]: Taking taylor expansion of x in x
0.127 * [approximate]: Taking taylor expansion of (* (- 1.0 (cos (/ -1 x))) (pow x 2)) in (x) around 0
0.127 * [taylor]: Taking taylor expansion of (* (- 1.0 (cos (/ -1 x))) (pow x 2)) in x
0.127 * [taylor]: Taking taylor expansion of (- 1.0 (cos (/ -1 x))) in x
0.127 * [taylor]: Taking taylor expansion of 1.0 in x
0.127 * [taylor]: Taking taylor expansion of (cos (/ -1 x)) in x
0.127 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.127 * [taylor]: Taking taylor expansion of -1 in x
0.127 * [taylor]: Taking taylor expansion of x in x
0.128 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.128 * [taylor]: Taking taylor expansion of x in x
0.128 * [taylor]: Taking taylor expansion of (* (- 1.0 (cos (/ -1 x))) (pow x 2)) in x
0.128 * [taylor]: Taking taylor expansion of (- 1.0 (cos (/ -1 x))) in x
0.128 * [taylor]: Taking taylor expansion of 1.0 in x
0.128 * [taylor]: Taking taylor expansion of (cos (/ -1 x)) in x
0.128 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.128 * [taylor]: Taking taylor expansion of -1 in x
0.128 * [taylor]: Taking taylor expansion of x in x
0.128 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.128 * [taylor]: Taking taylor expansion of x in x
0.138 * * * * [progress]: [ 2 / 2 ] generating series at (2 1)
0.138 * [approximate]: Taking taylor expansion of (- 1.0 (cos x)) in (x) around 0
0.138 * [taylor]: Taking taylor expansion of (- 1.0 (cos x)) in x
0.138 * [taylor]: Taking taylor expansion of 1.0 in x
0.138 * [taylor]: Taking taylor expansion of (cos x) in x
0.138 * [taylor]: Taking taylor expansion of x in x
0.138 * [taylor]: Taking taylor expansion of (- 1.0 (cos x)) in x
0.138 * [taylor]: Taking taylor expansion of 1.0 in x
0.138 * [taylor]: Taking taylor expansion of (cos x) in x
0.138 * [taylor]: Taking taylor expansion of x in x
0.151 * [approximate]: Taking taylor expansion of (- 1.0 (cos (/ 1 x))) in (x) around 0
0.151 * [taylor]: Taking taylor expansion of (- 1.0 (cos (/ 1 x))) in x
0.151 * [taylor]: Taking taylor expansion of 1.0 in x
0.151 * [taylor]: Taking taylor expansion of (cos (/ 1 x)) in x
0.151 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.151 * [taylor]: Taking taylor expansion of x in x
0.152 * [taylor]: Taking taylor expansion of (- 1.0 (cos (/ 1 x))) in x
0.152 * [taylor]: Taking taylor expansion of 1.0 in x
0.152 * [taylor]: Taking taylor expansion of (cos (/ 1 x)) in x
0.152 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.152 * [taylor]: Taking taylor expansion of x in x
0.155 * [approximate]: Taking taylor expansion of (- 1.0 (cos (/ -1 x))) in (x) around 0
0.155 * [taylor]: Taking taylor expansion of (- 1.0 (cos (/ -1 x))) in x
0.155 * [taylor]: Taking taylor expansion of 1.0 in x
0.155 * [taylor]: Taking taylor expansion of (cos (/ -1 x)) in x
0.155 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.155 * [taylor]: Taking taylor expansion of -1 in x
0.155 * [taylor]: Taking taylor expansion of x in x
0.155 * [taylor]: Taking taylor expansion of (- 1.0 (cos (/ -1 x))) in x
0.155 * [taylor]: Taking taylor expansion of 1.0 in x
0.155 * [taylor]: Taking taylor expansion of (cos (/ -1 x)) in x
0.155 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.155 * [taylor]: Taking taylor expansion of -1 in x
0.155 * [taylor]: Taking taylor expansion of x in x
0.159 * * * [progress]: simplifying candidates
0.160 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (expm1 (/ (- 1.0 (cos x)) (* x x)))
  (log1p (/ (- 1.0 (cos x)) (* x x)))
  (- (log (- 1.0 (cos x))) (+ (log x) (log x)))
  (- (log (- 1.0 (cos x))) (log (* x x)))
  (log (/ (- 1.0 (cos x)) (* x x)))
  (exp (/ (- 1.0 (cos x)) (* x x)))
  (/ (* (* (- 1.0 (cos x)) (- 1.0 (cos x))) (- 1.0 (cos x))) (* (* (* x x) x) (* (* x x) x)))
  (/ (* (* (- 1.0 (cos x)) (- 1.0 (cos x))) (- 1.0 (cos x))) (* (* (* x x) (* x x)) (* x x)))
  (* (cbrt (/ (- 1.0 (cos x)) (* x x))) (cbrt (/ (- 1.0 (cos x)) (* x x))))
  (cbrt (/ (- 1.0 (cos x)) (* x x)))
  (* (* (/ (- 1.0 (cos x)) (* x x)) (/ (- 1.0 (cos x)) (* x x))) (/ (- 1.0 (cos x)) (* x x)))
  (sqrt (/ (- 1.0 (cos x)) (* x x)))
  (sqrt (/ (- 1.0 (cos x)) (* x x)))
  (- (- 1.0 (cos x)))
  (- (* x x))
  (/ 1.0 (* x x))
  (/ (cos x) (* x x))
  (/ (* (cbrt (- 1.0 (cos x))) (cbrt (- 1.0 (cos x)))) x)
  (/ (cbrt (- 1.0 (cos x))) x)
  (/ (sqrt (- 1.0 (cos x))) x)
  (/ (sqrt (- 1.0 (cos x))) x)
  (/ 1 x)
  (/ (- 1.0 (cos x)) x)
  (/ (+ (sqrt 1.0) (sqrt (cos x))) x)
  (/ (- (sqrt 1.0) (sqrt (cos x))) x)
  (/ 1 x)
  (/ (- 1.0 (cos x)) x)
  (/ 1 (* x x))
  (/ (* x x) (- 1.0 (cos x)))
  (/ (- 1.0 (cos x)) x)
  (/ (* x x) (cbrt (- 1.0 (cos x))))
  (/ (* x x) (sqrt (- 1.0 (cos x))))
  (/ (* x x) (- 1.0 (cos x)))
  (/ (* x x) (- (sqrt 1.0) (sqrt (cos x))))
  (/ (* x x) (- 1.0 (cos x)))
  (* (* x x) (+ (* 1.0 1.0) (+ (* (cos x) (cos x)) (* 1.0 (cos x)))))
  (* (* x x) (+ 1.0 (cos x)))
  (fma (* (cbrt 1.0) (cbrt 1.0)) (cbrt 1.0) (- (* (cbrt (cos x)) (* (cbrt (cos x)) (cbrt (cos x))))))
  (fma (- (cbrt (cos x))) (* (cbrt (cos x)) (cbrt (cos x))) (* (cbrt (cos x)) (* (cbrt (cos x)) (cbrt (cos x)))))
  (fma (* (cbrt 1.0) (cbrt 1.0)) (cbrt 1.0) (- (* (sqrt (cos x)) (sqrt (cos x)))))
  (fma (- (sqrt (cos x))) (sqrt (cos x)) (* (sqrt (cos x)) (sqrt (cos x))))
  (fma (* (cbrt 1.0) (cbrt 1.0)) (cbrt 1.0) (- (* (cos x) 1)))
  (fma (- (cos x)) 1 (* (cos x) 1))
  (fma (sqrt 1.0) (sqrt 1.0) (- (* (cbrt (cos x)) (* (cbrt (cos x)) (cbrt (cos x))))))
  (fma (- (cbrt (cos x))) (* (cbrt (cos x)) (cbrt (cos x))) (* (cbrt (cos x)) (* (cbrt (cos x)) (cbrt (cos x)))))
  (fma (sqrt 1.0) (sqrt 1.0) (- (* (sqrt (cos x)) (sqrt (cos x)))))
  (fma (- (sqrt (cos x))) (sqrt (cos x)) (* (sqrt (cos x)) (sqrt (cos x))))
  (fma (sqrt 1.0) (sqrt 1.0) (- (* (cos x) 1)))
  (fma (- (cos x)) 1 (* (cos x) 1))
  (fma 1 1.0 (- (* (cbrt (cos x)) (* (cbrt (cos x)) (cbrt (cos x))))))
  (fma (- (cbrt (cos x))) (* (cbrt (cos x)) (cbrt (cos x))) (* (cbrt (cos x)) (* (cbrt (cos x)) (cbrt (cos x)))))
  (fma 1 1.0 (- (* (sqrt (cos x)) (sqrt (cos x)))))
  (fma (- (sqrt (cos x))) (sqrt (cos x)) (* (sqrt (cos x)) (sqrt (cos x))))
  (fma 1 1.0 (- (* (cos x) 1)))
  (fma (- (cos x)) 1 (* (cos x) 1))
  (expm1 (- 1.0 (cos x)))
  (log1p (- 1.0 (cos x)))
  (- (cos x))
  (- (cos x))
  (- (cos x))
  (/ (exp 1.0) (exp (cos x)))
  (log (- 1.0 (cos x)))
  (exp (- 1.0 (cos x)))
  (* (cbrt (- 1.0 (cos x))) (cbrt (- 1.0 (cos x))))
  (cbrt (- 1.0 (cos x)))
  (* (* (- 1.0 (cos x)) (- 1.0 (cos x))) (- 1.0 (cos x)))
  (sqrt (- 1.0 (cos x)))
  (sqrt (- 1.0 (cos x)))
  (- (pow 1.0 3) (pow (cos x) 3))
  (+ (* 1.0 1.0) (+ (* (cos x) (cos x)) (* 1.0 (cos x))))
  (- (cos x))
  (- (* 1.0 1.0) (* (cos x) (cos x)))
  (+ 1.0 (cos x))
  (+ (sqrt 1.0) (sqrt (cos x)))
  (- (sqrt 1.0) (sqrt (cos x)))
  (- 1.0 (cos x))
  (- (cos x))
  (- (+ (* 1/720 (pow x 4)) 1/2) (* 1/24 (pow x 2)))
  (/ (- 1.0 (cos x)) (pow x 2))
  (/ (- 1.0 (cos x)) (pow x 2))
  (- (+ (* 1/2 (pow x 2)) (* 1/720 (pow x 6))) (* 1/24 (pow x 4)))
  (- 1.0 (cos x))
  (- 1.0 (cos x))
0.163 * * [simplify]: iteration  0 :  116  enodes  (cost  808 )
0.181 * * [simplify]: iteration  1 :  285  enodes  (cost  686 )