4.819 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.021 * * * [progress]: [2/2] Setting up program.
0.024 * [progress]: [Phase 2 of 3] Improving.
0.024 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (+ x y) (- x y))
0.149 * * [simplify]: iteration  0 :  5135  enodes  (cost  7 )
0.150 * [simplify]: Simplified to:
   (- (* x x) (* y y))
0.158 * * [progress]: iteration 1 / 4
0.158 * * * [progress]: picking best candidate
0.161 * * * * [pick]: Picked  #<alt (λ (x y) (* (+ x y) (- x y)))>
0.161 * * * [progress]: localizing error
0.165 * * * [progress]: generating rewritten candidates
0.166 * * * [progress]: generating series expansions
0.166 * * * [progress]: simplifying candidates
0.166 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.169 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.169 * [simplify]: Simplified to:
   
0.169 * * * [progress]: adding candidates to table
0.169 * [progress]: [Phase 3 of 3] Extracting.
0.172 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (+ x y) (- x y))
0.173 * * [simplify]: iteration  0 :  17  enodes  (cost  7 )
0.173 * * [simplify]: iteration  1 :  17  enodes  (cost  7 )
0.174 * [simplify]: Simplified to:
   (* (+ x y) (- x y))
0.996 * [regime-testing]: End program error score: 0.0010001250156269534