1.937 * [progress]: [Phase 1 of 3] Setting up.
0.000 * * * [progress]: [1/2] Preparing points
0.020 * * * [progress]: [2/2] Setting up program.
0.023 * [progress]: [Phase 2 of 3] Improving.
0.023 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ (exp x) (exp y))
0.024 * * [simplify]: iteration  0 :  7  enodes  (cost  2 )
0.025 * * [simplify]: iteration  1 :  9  enodes  (cost  2 )
0.026 * * [simplify]: iteration  2 :  12  enodes  (cost  2 )
0.027 * * [simplify]: iteration  3 :  15  enodes  (cost  2 )
0.028 * * [simplify]: iteration  4 :  21  enodes  (cost  2 )
0.029 * * [simplify]: iteration  5 :  31  enodes  (cost  2 )
0.030 * * [simplify]: iteration  6 :  92  enodes  (cost  2 )
0.032 * * [simplify]: iteration  7 :  139  enodes  (cost  2 )
0.033 * * [simplify]: iteration  8 :  229  enodes  (cost  2 )
0.035 * * [simplify]: iteration  9 :  387  enodes  (cost  2 )
0.041 * * [simplify]: iteration  10 :  877  enodes  (cost  2 )
0.074 * * [simplify]: iteration  11 :  5001  enodes  (cost  2 )
0.075 * [simplify]: Simplified to:
   (exp (- x y))
0.078 * [progress]: [Phase 3 of 3] Extracting.
0.080 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (exp (- x y))
0.081 * * [simplify]: iteration  0 :  4  enodes  (cost  2 )
0.081 * [simplify]: Simplified to:
   (exp (- x y))
0.904 * [regime-testing]: End program error score: 0.002264660998062147