6.970 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.027 * * * [progress]: [2/2] Setting up program.
0.028 * [progress]: [Phase 2 of 3] Improving.
0.028 * [simplify]: Simplifying:
  (- (* a a) (* b b))
0.029 * * [simplify]: Extracting # 0 : cost  0
0.029 * * [simplify]: Extracting # 1 : cost  0
0.029 * * [simplify]: Extracting # 2 : cost  0
0.029 * * [simplify]: Extracting # 3 : cost  0
0.029 * * [simplify]: Extracting # 4 : cost  0
0.029 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.030 * * [simplify]: Extracting # 0 : cost  0
0.030 * * [simplify]: Extracting # 1 : cost  0
0.030 * * [simplify]: Extracting # 2 : cost  0
0.030 * * [simplify]: iteration  1 :  10  enodes  (cost  7 )
0.032 * * [simplify]: Extracting # 0 : cost  0
0.032 * * [simplify]: Extracting # 1 : cost  0
0.032 * * [simplify]: Extracting # 2 : cost  0
0.032 * * [simplify]: iteration  2 :  17  enodes  (cost  7 )
0.039 * * [simplify]: Extracting # 0 : cost  0
0.039 * * [simplify]: Extracting # 1 : cost  0
0.039 * * [simplify]: Extracting # 2 : cost  0
0.039 * * [simplify]: iteration  3 :  32  enodes  (cost  7 )
0.053 * * [simplify]: Extracting # 0 : cost  0
0.053 * * [simplify]: Extracting # 1 : cost  0
0.053 * * [simplify]: Extracting # 2 : cost  0
0.053 * * [simplify]: iteration  4 :  58  enodes  (cost  7 )
0.085 * * [simplify]: Extracting # 0 : cost  0
0.086 * * [simplify]: Extracting # 1 : cost  0
0.086 * * [simplify]: Extracting # 2 : cost  0
0.086 * * [simplify]: iteration  5 :  129  enodes  (cost  7 )
0.135 * * [simplify]: Extracting # 0 : cost  0
0.135 * * [simplify]: Extracting # 1 : cost  0
0.136 * * [simplify]: Extracting # 2 : cost  0
0.136 * * [simplify]: Extracting # 3 : cost  0
0.136 * * [simplify]: iteration  6 :  187  enodes  (cost  7 )
0.229 * * [simplify]: Extracting # 0 : cost  0
0.230 * * [simplify]: Extracting # 1 : cost  0
0.231 * * [simplify]: Extracting # 2 : cost  0
0.231 * * [simplify]: Extracting # 3 : cost  0
0.232 * * [simplify]: iteration  7 :  369  enodes  (cost  7 )
1.001 * * [simplify]: Extracting # 0 : cost  0
1.003 * * [simplify]: Extracting # 1 : cost  0
1.005 * * [simplify]: Extracting # 2 : cost  0
1.007 * * [simplify]: Extracting # 3 : cost  0
1.010 * * [simplify]: Extracting # 4 : cost  0
1.013 * * [simplify]: iteration  8 :  1551  enodes  (cost  7 )
14.586 * * [simplify]: Extracting # 0 : cost  0
14.597 * * [simplify]: Extracting # 1 : cost  0
14.600 * * [simplify]: Extracting # 2 : cost  0
14.603 * * [simplify]: Extracting # 3 : cost  0
14.606 * * [simplify]: Extracting # 4 : cost  0
14.608 * * [simplify]: iteration done:  5000  enodes  (cost  7 )
14.608 * [simplify]: Simplified to:
  (* (- a b) (+ a b))
14.611 * * [progress]: iteration 1 / 4
14.611 * * * [progress]: picking best candidate
14.612 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
14.612 * * * [progress]: localizing error
14.623 * * * [progress]: generating rewritten candidates
14.623 * * * [progress]: generating series expansions
14.623 * * * [progress]: simplifying candidates
14.623 * [simplify]: Simplifying:
  
14.623 * * [simplify]: Extracting # 0 : cost  0
14.623 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
14.623 * * [simplify]: Extracting # 0 : cost  0
14.623 * * [simplify]: iteration done:  0  enodes  (cost  0 )
14.623 * [simplify]: Simplified to:
  
14.623 * * * [progress]: adding candidates to table
14.623 * [progress]: [Phase 3 of 3] Extracting.
14.625 * [simplify]: Simplifying:
  (- (* a a) (* b b))
14.625 * * [simplify]: Extracting # 0 : cost  0
14.625 * * [simplify]: Extracting # 1 : cost  0
14.625 * * [simplify]: Extracting # 2 : cost  0
14.625 * * [simplify]: Extracting # 3 : cost  0
14.625 * * [simplify]: Extracting # 4 : cost  0
14.625 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
14.625 * * [simplify]: Extracting # 0 : cost  0
14.625 * * [simplify]: iteration done:  5  enodes  (cost  7 )
14.625 * [simplify]: Simplified to:
  (- (* a a) (* b b))
15.788 * [regime-testing]: Baseline error score: 0.007029481021439666
15.790 * [regime-testing]: Oracle error score: 0.007029481021439666
15.790 * [regime-testing]: End program error score: 0.007029481021439666
15.819 * [regime-testing]: Target error score: 0.0010001250156269534