0.928 * [progress]: [Phase 1 of 3] Setting up.
0.005 * * * [progress]: [1/2] Preparing points
0.231 * * * [progress]: [2/2] Setting up program.
0.237 * [progress]: [Phase 2 of 3] Improving.
0.241 * [simplify]: Simplifying:
  (* 2.0 (atan (sqrt (/ (- 1.0 x) (+ 1.0 x)))))
0.242 * * [simplify]: Extracting # 0 : cost  0
0.243 * * [simplify]: Extracting # 1 : cost  0
0.243 * * [simplify]: Extracting # 2 : cost  0
0.243 * * [simplify]: Extracting # 3 : cost  0
0.243 * * [simplify]: Extracting # 4 : cost  0
0.243 * * [simplify]: Extracting # 5 : cost  0
0.243 * * [simplify]: Extracting # 6 : cost  0
0.243 * * [simplify]: Extracting # 7 : cost  0
0.243 * * [simplify]: iteration  0 :  9  enodes  (cost  11 )
0.253 * * [simplify]: Extracting # 0 : cost  0
0.253 * * [simplify]: Extracting # 1 : cost  0
0.253 * * [simplify]: Extracting # 2 : cost  0
0.253 * * [simplify]: iteration  1 :  16  enodes  (cost  11 )
0.259 * * [simplify]: Extracting # 0 : cost  0
0.259 * * [simplify]: Extracting # 1 : cost  0
0.259 * * [simplify]: Extracting # 2 : cost  0
0.259 * * [simplify]: iteration  2 :  19  enodes  (cost  11 )
0.265 * * [simplify]: Extracting # 0 : cost  0
0.265 * * [simplify]: iteration  3 :  21  enodes  (cost  11 )
0.271 * * [simplify]: Extracting # 0 : cost  0
0.271 * * [simplify]: iteration done:  21  enodes  (cost  11 )
0.321 * [simplify]: Simplified to:
  (* 2.0 (atan (sqrt (/ (- 1.0 x) (+ 1.0 x)))))
0.323 * * [progress]: iteration 1 / 4
0.323 * * * [progress]: picking best candidate
0.326 * * * * [pick]: Picked  #<alt (λ (x) (* 2.0 (atan (sqrt (/ (- 1.0 x) (+ 1.0 x))))))>
0.326 * * * [progress]: localizing error
0.340 * * * [progress]: generating rewritten candidates
0.340 * * * * [progress]: [ 1 / 3 ] rewriting at (2 2 1 1)
0.370 * * * * [progress]: [ 2 / 3 ] rewriting at (2 2)
0.371 * * * * [progress]: [ 3 / 3 ] rewriting at (2 2 1)
0.414 * * * [progress]: generating series expansions
0.426 * * * * [progress]: [ 1 / 3 ] generating series at (2 2 1 1)
0.435 * [backup-simplify]: Simplify (/ (- 1.0 x) (+ 1.0 x)) into (/ (- 1.0 x) (+ x 1.0))
0.435 * [approximate]: Taking taylor expansion of (/ (- 1.0 x) (+ x 1.0)) in (x) around 0
0.436 * [taylor]: Taking taylor expansion of (/ (- 1.0 x) (+ x 1.0)) in x
0.436 * [taylor]: Taking taylor expansion of (- 1.0 x) in x
0.436 * [taylor]: Taking taylor expansion of 1.0 in x
0.436 * [backup-simplify]: Simplify 1.0 into 1.0
0.436 * [taylor]: Taking taylor expansion of x in x
0.436 * [backup-simplify]: Simplify 0 into 0
0.437 * [backup-simplify]: Simplify 1 into 1
0.437 * [taylor]: Taking taylor expansion of (+ x 1.0) in x
0.437 * [taylor]: Taking taylor expansion of x in x
0.437 * [backup-simplify]: Simplify 0 into 0
0.437 * [backup-simplify]: Simplify 1 into 1
0.437 * [taylor]: Taking taylor expansion of 1.0 in x
0.437 * [backup-simplify]: Simplify 1.0 into 1.0
0.438 * [backup-simplify]: Simplify (- 0) into 0
0.439 * [backup-simplify]: Simplify (+ 1.0 0) into 1.0
0.440 * [backup-simplify]: Simplify (+ 0 1.0) into 1.0
0.440 * [backup-simplify]: Simplify (/ 1.0 1.0) into 1.0
0.440 * [taylor]: Taking taylor expansion of (/ (- 1.0 x) (+ x 1.0)) in x
0.440 * [taylor]: Taking taylor expansion of (- 1.0 x) in x
0.440 * [taylor]: Taking taylor expansion of 1.0 in x
0.440 * [backup-simplify]: Simplify 1.0 into 1.0
0.440 * [taylor]: Taking taylor expansion of x in x
0.440 * [backup-simplify]: Simplify 0 into 0
0.440 * [backup-simplify]: Simplify 1 into 1
0.440 * [taylor]: Taking taylor expansion of (+ x 1.0) in x
0.440 * [taylor]: Taking taylor expansion of x in x
0.440 * [backup-simplify]: Simplify 0 into 0
0.440 * [backup-simplify]: Simplify 1 into 1
0.440 * [taylor]: Taking taylor expansion of 1.0 in x
0.440 * [backup-simplify]: Simplify 1.0 into 1.0
0.441 * [backup-simplify]: Simplify (- 0) into 0
0.441 * [backup-simplify]: Simplify (+ 1.0 0) into 1.0
0.442 * [backup-simplify]: Simplify (+ 0 1.0) into 1.0
0.442 * [backup-simplify]: Simplify (/ 1.0 1.0) into 1.0
0.443 * [backup-simplify]: Simplify 1.0 into 1.0
0.443 * [backup-simplify]: Simplify (- 1) into -1
0.444 * [backup-simplify]: Simplify (+ 0 -1) into -1
0.444 * [backup-simplify]: Simplify (+ 1 0) into 1
0.447 * [backup-simplify]: Simplify (- (/ -1 1.0) (+ (* 1.0 (/ 1 1.0)))) into (- 2.0)
0.448 * [backup-simplify]: Simplify (- 2.0) into (- 2.0)
0.448 * [backup-simplify]: Simplify (- 0) into 0
0.449 * [backup-simplify]: Simplify (+ 0 0) into 0
0.449 * [backup-simplify]: Simplify (+ 0 0) into 0
0.454 * [backup-simplify]: Simplify (- (/ 0 1.0) (+ (* 1.0 (/ 0 1.0)) (* (- 2.0) (/ 1 1.0)))) into 2.0
0.454 * [backup-simplify]: Simplify 2.0 into 2.0