0.164 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.029 * * * [progress]: [2/2] Setting up program.
0.031 * [progress]: [Phase 2 of 3] Improving.
0.031 * [simplify]: Simplifying:
  (/ (* (- x y) (+ x y)) (+ (* x x) (* y y)))
0.031 * * [simplify]: Extracting # 0 : cost  0
0.031 * * [simplify]: Extracting # 1 : cost  0
0.031 * * [simplify]: Extracting # 2 : cost  0
0.031 * * [simplify]: Extracting # 3 : cost  0
0.031 * * [simplify]: Extracting # 4 : cost  0
0.031 * * [simplify]: Extracting # 5 : cost  0
0.031 * * [simplify]: iteration  0 :  9  enodes  (cost  15 )
0.033 * * [simplify]: Extracting # 0 : cost  0
0.033 * * [simplify]: Extracting # 1 : cost  0
0.033 * * [simplify]: Extracting # 2 : cost  0
0.033 * * [simplify]: iteration  1 :  22  enodes  (cost  15 )
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  2 :  48  enodes  (cost  15 )
0.047 * * [simplify]: Extracting # 0 : cost  0
0.047 * * [simplify]: Extracting # 1 : cost  0
0.048 * * [simplify]: Extracting # 2 : cost  0
0.048 * * [simplify]: iteration  3 :  101  enodes  (cost  15 )
0.090 * * [simplify]: Extracting # 0 : cost  0
0.090 * * [simplify]: Extracting # 1 : cost  0
0.090 * * [simplify]: Extracting # 2 : cost  0
0.091 * * [simplify]: iteration  4 :  188  enodes  (cost  15 )
0.174 * * [simplify]: Extracting # 0 : cost  0
0.175 * * [simplify]: Extracting # 1 : cost  0
0.175 * * [simplify]: Extracting # 2 : cost  0
0.176 * * [simplify]: Extracting # 3 : cost  0
0.176 * * [simplify]: iteration  5 :  346  enodes  (cost  15 )
0.339 * * [simplify]: Extracting # 0 : cost  0
0.340 * * [simplify]: Extracting # 1 : cost  0
0.341 * * [simplify]: Extracting # 2 : cost  0
0.341 * * [simplify]: Extracting # 3 : cost  0
0.342 * * [simplify]: Extracting # 4 : cost  0
0.343 * * [simplify]: iteration  6 :  579  enodes  (cost  15 )
0.640 * * [simplify]: Extracting # 0 : cost  0
0.641 * * [simplify]: Extracting # 1 : cost  0
0.641 * * [simplify]: Extracting # 2 : cost  0
0.642 * * [simplify]: iteration  7 :  875  enodes  (cost  15 )
1.695 * * [simplify]: Extracting # 0 : cost  0
1.705 * * [simplify]: Extracting # 1 : cost  0
1.708 * * [simplify]: Extracting # 2 : cost  0
1.711 * * [simplify]: iteration  8 :  2271  enodes  (cost  15 )
4.230 * * [simplify]: Extracting # 0 : cost  0
4.240 * * [simplify]: Extracting # 1 : cost  0
4.247 * * [simplify]: Extracting # 2 : cost  0
4.261 * * [simplify]: Extracting # 3 : cost  0
4.268 * * [simplify]: Extracting # 4 : cost  0
4.274 * * [simplify]: iteration done:  5000  enodes  (cost  15 )
4.275 * [simplify]: Simplified to:
  (* (- x y) (/ (+ x y) (+ (* x x) (* y y))))
4.277 * * [progress]: iteration 1 / 4
4.277 * * * [progress]: picking best candidate
4.280 * * * * [pick]: Picked  #<alt (λ (x y) (* (- x y) (/ (+ x y) (+ (* x x) (* y y)))))>
4.280 * * * [progress]: localizing error
4.291 * * * [progress]: generating rewritten candidates
4.291 * * * * [progress]: [ 1 / 3 ] rewriting at (2 2)
4.323 * * * * [progress]: [ 2 / 3 ] rewriting at (2)
4.396 * * * * [progress]: [ 3 / 3 ] rewriting at (2 2 2)
4.410 * * * [progress]: generating series expansions
4.410 * * * * [progress]: [ 1 / 3 ] generating series at (2 2)