3.388 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.009 * * * [progress]: [2/2] Setting up program.
0.015 * [progress]: [Phase 2 of 3] Improving.
0.015 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ x1 x2)
0.017 * * [simplify]: iteration  0 :  4  enodes  (cost  1 )
0.018 * * [simplify]: iteration  1 :  4  enodes  (cost  1 )
0.018 * [simplify]: Simplified to:
   (+ x1 x2)
0.019 * [progress]: [Phase 3 of 3] Extracting.
0.021 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ x1 x2)
0.021 * * [simplify]: iteration  0 :  4  enodes  (cost  1 )
0.021 * * [simplify]: iteration  1 :  4  enodes  (cost  1 )
0.021 * [simplify]: Simplified to:
   (+ x1 x2)
0.475 * [regime-testing]: End program error score: 0