0.300 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.032 * * * [progress]: [2/2] Setting up program.
0.034 * [progress]: [Phase 2 of 3] Improving.
0.035 * [simplify]: Simplifying:
  (/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y)))
0.035 * * [simplify]: Extracting # 0 : cost  0
0.035 * * [simplify]: Extracting # 1 : cost  0
0.035 * * [simplify]: Extracting # 2 : cost  0
0.035 * * [simplify]: Extracting # 3 : cost  0
0.035 * * [simplify]: Extracting # 4 : cost  0
0.035 * * [simplify]: Extracting # 5 : cost  0
0.035 * * [simplify]: iteration  0 :  9  enodes  (cost  19 )
0.037 * * [simplify]: Extracting # 0 : cost  0
0.037 * * [simplify]: Extracting # 1 : cost  0
0.037 * * [simplify]: Extracting # 2 : cost  0
0.037 * * [simplify]: iteration  1 :  19  enodes  (cost  18 )
0.040 * * [simplify]: Extracting # 0 : cost  0
0.040 * * [simplify]: Extracting # 1 : cost  0
0.040 * * [simplify]: Extracting # 2 : cost  0
0.040 * * [simplify]: iteration  2 :  39  enodes  (cost  18 )
0.048 * * [simplify]: Extracting # 0 : cost  0
0.048 * * [simplify]: Extracting # 1 : cost  0
0.049 * * [simplify]: Extracting # 2 : cost  0
0.049 * * [simplify]: iteration  3 :  77  enodes  (cost  18 )
0.064 * * [simplify]: Extracting # 0 : cost  0
0.065 * * [simplify]: Extracting # 1 : cost  0
0.065 * * [simplify]: Extracting # 2 : cost  0
0.065 * * [simplify]: iteration  4 :  128  enodes  (cost  18 )
0.543 * * [simplify]: Extracting # 0 : cost  0
0.543 * * [simplify]: Extracting # 1 : cost  0
0.543 * * [simplify]: Extracting # 2 : cost  0
0.544 * * [simplify]: iteration  5 :  184  enodes  (cost  18 )
0.637 * * [simplify]: Extracting # 0 : cost  0
0.637 * * [simplify]: Extracting # 1 : cost  0
0.637 * * [simplify]: Extracting # 2 : cost  0
0.638 * * [simplify]: iteration  6 :  211  enodes  (cost  18 )
0.715 * * [simplify]: Extracting # 0 : cost  0
0.716 * * [simplify]: iteration  7 :  216  enodes  (cost  18 )
0.763 * * [simplify]: Extracting # 0 : cost  0
0.763 * * [simplify]: iteration done:  216  enodes  (cost  18 )
0.763 * [simplify]: Simplified to:
  (/ (- (* x x) (* (* y 4.0) y)) (fma x x (* (* y 4.0) y)))
0.769 * * [progress]: iteration 1 / 4
0.769 * * * [progress]: picking best candidate
0.772 * * * * [pick]: Picked  #<alt (λ (x y) (/ (- (* x x) (* (* y 4.0) y)) (+ (* x x) (* (* y 4.0) y))))>
0.772 * * * [progress]: localizing error
0.794 * * * [progress]: generating rewritten candidates
0.794 * * * * [progress]: [ 1 / 3 ] rewriting at (2)
0.823 * * * * [progress]: [ 2 / 3 ] rewriting at (2 1)
0.832 * * * * [progress]: [ 3 / 3 ] rewriting at (2 2)
0.846 * * * [progress]: generating series expansions
0.846 * * * * [progress]: [ 1 / 3 ] generating series at (2)