3.022 * [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> :
   (/ 1.0 (- (pow x 2.0) (pow y 2.0)))
0.026 * * [simplify]: iteration  0 :  16  enodes  (cost  4 )
0.027 * * [simplify]: iteration  1 :  31  enodes  (cost  4 )
0.028 * * [simplify]: iteration  2 :  72  enodes  (cost  4 )
0.030 * * [simplify]: iteration  3 :  212  enodes  (cost  4 )
0.034 * * [simplify]: iteration  4 :  796  enodes  (cost  4 )
0.051 * * [simplify]: iteration  5 :  4038  enodes  (cost  4 )
0.153 * * [simplify]: iteration  6 :  5002  enodes  (cost  4 )
0.153 * [simplify]: Simplified to:
   (/ 1.0 (- (pow x 2.0) (pow y 2.0)))
0.154 * [progress]: [Phase 3 of 3] Extracting.
0.157 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (/ 1.0 (- (pow x 2.0) (pow y 2.0)))
0.157 * * [simplify]: iteration  0 :  8  enodes  (cost  4 )
0.157 * [simplify]: Simplified to:
   (/ 1.0 (- (pow x 2.0) (pow y 2.0)))
1.032 * [regime-testing]: End program error score: 4.770862677092374