10.370 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.082 * * * [progress]: [2/2] Setting up program.
0.085 * [progress]: [Phase 2 of 3] Improving.
0.085 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* a a) (* b b))
0.088 * * [simplify]: iteration  0 :  16  enodes  (cost  7 )
0.088 * * [simplify]: iteration  1 :  16  enodes  (cost  7 )
0.088 * [simplify]: Simplified to:
   (- (* a a) (* b b))
0.088 * * [progress]: iteration 1 / 4
0.088 * * * [progress]: picking best candidate
0.090 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
0.090 * * * [progress]: localizing error
0.094 * * * [progress]: generating rewritten candidates
0.094 * * * [progress]: generating series expansions
0.094 * * * [progress]: simplifying candidates
0.094 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.096 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.097 * [simplify]: Simplified to:
   
0.097 * * * [progress]: adding candidates to table
0.097 * [progress]: [Phase 3 of 3] Extracting.
0.099 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (* a a) (* b b))
0.099 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.100 * * [simplify]: iteration  1 :  5  enodes  (cost  7 )
0.100 * [simplify]: Simplified to:
   (- (* a a) (* b b))
0.657 * [regime-testing]: End program error score: 0.006750843855481936
0.719 * [regime-testing]: Target error score: 0.0007500937617202151