2.439 * [progress]: [Phase 1 of 3] Setting up.
0.000 * * * [progress]: [1/2] Preparing points
0.042 * * * [progress]: [2/2] Setting up program.
0.044 * [progress]: [Phase 2 of 3] Improving.
0.044 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (sin (- x y))
0.046 * * [simplify]: iteration  0 :  6  enodes  (cost  2 )
0.047 * * [simplify]: iteration  1 :  7  enodes  (cost  2 )
0.048 * * [simplify]: iteration  2 :  7  enodes  (cost  2 )
0.048 * [simplify]: Simplified to:
   (sin (- x y))
0.048 * [progress]: [Phase 3 of 3] Extracting.
0.050 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (sin (- x y))
0.051 * * [simplify]: iteration  0 :  4  enodes  (cost  2 )
0.051 * [simplify]: Simplified to:
   (sin (- x y))
1.538 * [regime-testing]: End program error score: 14.920328516025506