0.829 * [progress]: [Phase 1 of 3] Setting up.
0.003 * * * [progress]: [1/2] Preparing points
0.132 * * * [progress]: [2/2] Setting up program.
0.138 * [progress]: [Phase 2 of 3] Improving.
0.142 * [simplify]: Simplifying:
  (* 2.0 (atan (sqrt (/ (- 1.0 x) (+ 1.0 x)))))
0.143 * * [simplify]: Extracting # 0 : cost  0
0.143 * * [simplify]: Extracting # 1 : cost  0
0.144 * * [simplify]: Extracting # 2 : cost  0
0.144 * * [simplify]: Extracting # 3 : cost  0
0.144 * * [simplify]: Extracting # 4 : cost  0
0.144 * * [simplify]: Extracting # 5 : cost  0
0.144 * * [simplify]: Extracting # 6 : cost  0
0.144 * * [simplify]: Extracting # 7 : cost  0
0.144 * * [simplify]: iteration  0 :  9  enodes  (cost  11 )
0.151 * * [simplify]: Extracting # 0 : cost  0
0.151 * * [simplify]: Extracting # 1 : cost  0
0.151 * * [simplify]: Extracting # 2 : cost  0
0.151 * * [simplify]: iteration  1 :  16  enodes  (cost  11 )
0.206 * * [simplify]: Extracting # 0 : cost  0
0.206 * * [simplify]: Extracting # 1 : cost  0
0.206 * * [simplify]: Extracting # 2 : cost  0
0.206 * * [simplify]: iteration  2 :  19  enodes  (cost  11 )
0.213 * * [simplify]: Extracting # 0 : cost  0
0.213 * * [simplify]: iteration  3 :  21  enodes  (cost  11 )
0.220 * * [simplify]: Extracting # 0 : cost  0
0.220 * * [simplify]: iteration done:  21  enodes  (cost  11 )
0.221 * [simplify]: Simplified to:
  (* 2.0 (atan (sqrt (/ (- 1.0 x) (+ 1.0 x)))))
0.223 * * [progress]: iteration 1 / 4
0.223 * * * [progress]: picking best candidate
0.227 * * * * [pick]: Picked  #<alt (λ (x) (* 2.0 (atan (sqrt (/ (- 1.0 x) (+ 1.0 x))))))>
0.227 * * * [progress]: localizing error
0.250 * * * [progress]: generating rewritten candidates
0.250 * * * * [progress]: [ 1 / 3 ] rewriting at (2 2 1 1)
0.292 * * * * [progress]: [ 2 / 3 ] rewriting at (2 2)
0.293 * * * * [progress]: [ 3 / 3 ] rewriting at (2 2 1)
0.326 * * * [progress]: generating series expansions
0.326 * * * * [progress]: [ 1 / 3 ] generating series at (2 2 1 1)
0.332 * [backup-simplify]: Simplify (/ (- 1.0 x) (+ 1.0 x)) into (/ (- 1.0 x) (+ x 1.0))
0.332 * [approximate]: Taking taylor expansion of (/ (- 1.0 x) (+ x 1.0)) in (x) around 0
0.333 * [taylor]: Taking taylor expansion of (/ (- 1.0 x) (+ x 1.0)) in x
0.333 * [taylor]: Taking taylor expansion of (- 1.0 x) in x
0.333 * [taylor]: Taking taylor expansion of 1.0 in x
0.333 * [backup-simplify]: Simplify 1.0 into 1.0
0.333 * [taylor]: Taking taylor expansion of x in x
0.333 * [backup-simplify]: Simplify 0 into 0
0.333 * [backup-simplify]: Simplify 1 into 1
0.333 * [taylor]: Taking taylor expansion of (+ x 1.0) in x
0.333 * [taylor]: Taking taylor expansion of x in x
0.333 * [backup-simplify]: Simplify 0 into 0
0.333 * [backup-simplify]: Simplify 1 into 1
0.333 * [taylor]: Taking taylor expansion of 1.0 in x
0.333 * [backup-simplify]: Simplify 1.0 into 1.0
0.334 * [backup-simplify]: Simplify (- 0) into 0
0.334 * [backup-simplify]: Simplify (+ 1.0 0) into 1.0
0.335 * [backup-simplify]: Simplify (+ 0 1.0) into 1.0
0.335 * [backup-simplify]: Simplify (/ 1.0 1.0) into 1.0
0.335 * [taylor]: Taking taylor expansion of (/ (- 1.0 x) (+ x 1.0)) in x
0.335 * [taylor]: Taking taylor expansion of (- 1.0 x) in x
0.335 * [taylor]: Taking taylor expansion of 1.0 in x
0.335 * [backup-simplify]: Simplify 1.0 into 1.0
0.335 * [taylor]: Taking taylor expansion of x in x
0.335 * [backup-simplify]: Simplify 0 into 0
0.335 * [backup-simplify]: Simplify 1 into 1
0.335 * [taylor]: Taking taylor expansion of (+ x 1.0) in x
0.335 * [taylor]: Taking taylor expansion of x in x
0.335 * [backup-simplify]: Simplify 0 into 0
0.335 * [backup-simplify]: Simplify 1 into 1
0.335 * [taylor]: Taking taylor expansion of 1.0 in x
0.335 * [backup-simplify]: Simplify 1.0 into 1.0
0.335 * [backup-simplify]: Simplify (- 0) into 0
0.336 * [backup-simplify]: Simplify (+ 1.0 0) into 1.0
0.336 * [backup-simplify]: Simplify (+ 0 1.0) into 1.0
0.336 * [backup-simplify]: Simplify (/ 1.0 1.0) into 1.0
0.336 * [backup-simplify]: Simplify 1.0 into 1.0
0.337 * [backup-simplify]: Simplify (- 1) into -1
0.337 * [backup-simplify]: Simplify (+ 0 -1) into -1
0.338 * [backup-simplify]: Simplify (+ 1 0) into 1
0.339 * [backup-simplify]: Simplify (- (/ -1 1.0) (+ (* 1.0 (/ 1 1.0)))) into (- 2.0)
0.339 * [backup-simplify]: Simplify (- 2.0) into (- 2.0)
0.340 * [backup-simplify]: Simplify (- 0) into 0
0.340 * [backup-simplify]: Simplify (+ 0 0) into 0
0.340 * [backup-simplify]: Simplify (+ 0 0) into 0
0.343 * [backup-simplify]: Simplify (- (/ 0 1.0) (+ (* 1.0 (/ 0 1.0)) (* (- 2.0) (/ 1 1.0)))) into 2.0
0.343 * [backup-simplify]: Simplify 2.0 into 2.0