9.742 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.035 * * * [progress]: [2/2] Setting up program.
0.038 * [progress]: [Phase 2 of 3] Improving.
0.038 * [simplify]: Simplifying:
  (- (* x x) (* y y))
0.038 * * [simplify]: Extracting # 0 : cost  0
0.038 * * [simplify]: Extracting # 1 : cost  0
0.038 * * [simplify]: Extracting # 2 : cost  0
0.038 * * [simplify]: Extracting # 3 : cost  0
0.038 * * [simplify]: Extracting # 4 : cost  0
0.038 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
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  1 :  11  enodes  (cost  7 )
0.044 * * [simplify]: Extracting # 0 : cost  0
0.044 * * [simplify]: Extracting # 1 : cost  0
0.044 * * [simplify]: Extracting # 2 : cost  0
0.044 * * [simplify]: iteration  2 :  18  enodes  (cost  7 )
0.050 * * [simplify]: Extracting # 0 : cost  0
0.050 * * [simplify]: Extracting # 1 : cost  0
0.050 * * [simplify]: Extracting # 2 : cost  0
0.050 * * [simplify]: iteration  3 :  35  enodes  (cost  7 )
0.067 * * [simplify]: Extracting # 0 : cost  0
0.068 * * [simplify]: Extracting # 1 : cost  0
0.068 * * [simplify]: Extracting # 2 : cost  0
0.068 * * [simplify]: iteration  4 :  67  enodes  (cost  7 )
0.109 * * [simplify]: Extracting # 0 : cost  0
0.109 * * [simplify]: Extracting # 1 : cost  0
0.109 * * [simplify]: Extracting # 2 : cost  0
0.110 * * [simplify]: iteration  5 :  160  enodes  (cost  7 )
0.217 * * [simplify]: Extracting # 0 : cost  0
0.217 * * [simplify]: Extracting # 1 : cost  0
0.217 * * [simplify]: Extracting # 2 : cost  0
0.217 * * [simplify]: iteration  6 :  271  enodes  (cost  7 )
0.404 * * [simplify]: Extracting # 0 : cost  0
0.405 * * [simplify]: Extracting # 1 : cost  0
0.406 * * [simplify]: Extracting # 2 : cost  0
0.407 * * [simplify]: Extracting # 3 : cost  0
0.407 * * [simplify]: iteration  7 :  514  enodes  (cost  7 )
1.531 * * [simplify]: Extracting # 0 : cost  0
1.533 * * [simplify]: Extracting # 1 : cost  0
1.535 * * [simplify]: Extracting # 2 : cost  0
1.537 * * [simplify]: Extracting # 3 : cost  0
1.539 * * [simplify]: Extracting # 4 : cost  0
1.541 * * [simplify]: iteration  8 :  1901  enodes  (cost  7 )
12.202 * * [simplify]: Extracting # 0 : cost  0
12.214 * * [simplify]: Extracting # 1 : cost  0
12.217 * * [simplify]: Extracting # 2 : cost  0
12.222 * * [simplify]: Extracting # 3 : cost  0
12.225 * * [simplify]: Extracting # 4 : cost  0
12.228 * * [simplify]: iteration done:  5001  enodes  (cost  7 )
12.228 * [simplify]: Simplified to:
  (- (* x x) (* y y))
12.229 * * [progress]: iteration 1 / 4
12.229 * * * [progress]: picking best candidate
12.230 * * * * [pick]: Picked  #<alt (λ (x y) (- (* x x) (* y y)))>
12.230 * * * [progress]: localizing error
12.235 * * * [progress]: generating rewritten candidates
12.235 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
12.246 * * * [progress]: generating series expansions
12.246 * * * * [progress]: [ 1 / 1 ] generating series at (2)