7.096 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.026 * * * [progress]: [2/2] Setting up program.
0.027 * [progress]: [Phase 2 of 3] Improving.
0.028 * [simplify]: Simplifying:
  (- (* a a) (* b b))
0.028 * * [simplify]: Extracting # 0 : cost  0
0.028 * * [simplify]: Extracting # 1 : cost  0
0.028 * * [simplify]: Extracting # 2 : cost  0
0.028 * * [simplify]: Extracting # 3 : cost  0
0.028 * * [simplify]: Extracting # 4 : cost  0
0.028 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.029 * * [simplify]: Extracting # 0 : cost  0
0.029 * * [simplify]: Extracting # 1 : cost  0
0.029 * * [simplify]: Extracting # 2 : cost  0
0.029 * * [simplify]: iteration  1 :  11  enodes  (cost  7 )
0.031 * * [simplify]: Extracting # 0 : cost  0
0.031 * * [simplify]: Extracting # 1 : cost  0
0.031 * * [simplify]: Extracting # 2 : cost  0
0.031 * * [simplify]: iteration  2 :  18  enodes  (cost  7 )
0.034 * * [simplify]: Extracting # 0 : cost  0
0.034 * * [simplify]: Extracting # 1 : cost  0
0.034 * * [simplify]: Extracting # 2 : cost  0
0.034 * * [simplify]: iteration  3 :  35  enodes  (cost  7 )
0.042 * * [simplify]: Extracting # 0 : cost  0
0.042 * * [simplify]: Extracting # 1 : cost  0
0.042 * * [simplify]: Extracting # 2 : cost  0
0.042 * * [simplify]: iteration  4 :  67  enodes  (cost  7 )
0.062 * * [simplify]: Extracting # 0 : cost  0
0.063 * * [simplify]: Extracting # 1 : cost  0
0.063 * * [simplify]: Extracting # 2 : cost  0
0.063 * * [simplify]: iteration  5 :  160  enodes  (cost  7 )
0.166 * * [simplify]: Extracting # 0 : cost  0
0.167 * * [simplify]: Extracting # 1 : cost  0
0.167 * * [simplify]: Extracting # 2 : cost  0
0.167 * * [simplify]: iteration  6 :  271  enodes  (cost  7 )
0.351 * * [simplify]: Extracting # 0 : cost  0
0.352 * * [simplify]: Extracting # 1 : cost  0
0.353 * * [simplify]: Extracting # 2 : cost  0
0.354 * * [simplify]: Extracting # 3 : cost  0
0.355 * * [simplify]: iteration  7 :  514  enodes  (cost  7 )
1.503 * * [simplify]: Extracting # 0 : cost  0
1.507 * * [simplify]: Extracting # 1 : cost  0
1.510 * * [simplify]: Extracting # 2 : cost  0
1.512 * * [simplify]: Extracting # 3 : cost  0
1.514 * * [simplify]: Extracting # 4 : cost  0
1.515 * * [simplify]: iteration  8 :  1901  enodes  (cost  7 )
10.554 * * [simplify]: Extracting # 0 : cost  0
10.565 * * [simplify]: Extracting # 1 : cost  0
10.568 * * [simplify]: Extracting # 2 : cost  0
10.573 * * [simplify]: Extracting # 3 : cost  0
10.576 * * [simplify]: Extracting # 4 : cost  0
10.578 * * [simplify]: iteration done:  5001  enodes  (cost  7 )
10.579 * [simplify]: Simplified to:
  (- (* a a) (* b b))
10.579 * * [progress]: iteration 1 / 4
10.579 * * * [progress]: picking best candidate
10.580 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
10.580 * * * [progress]: localizing error
10.585 * * * [progress]: generating rewritten candidates
10.585 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
10.594 * * * [progress]: generating series expansions
10.594 * * * * [progress]: [ 1 / 1 ] generating series at (2)