12.263 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.084 * * * [progress]: [2/2] Setting up program.
0.087 * [progress]: [Phase 2 of 3] Improving.
0.087 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (pow a 4.0) (pow (- b a) 4.0))
0.089 * * [simplify]: iteration  0 :  17  enodes  (cost  4 )
0.091 * * [simplify]: iteration  1 :  33  enodes  (cost  4 )
0.092 * * [simplify]: iteration  2 :  72  enodes  (cost  4 )
0.094 * * [simplify]: iteration  3 :  208  enodes  (cost  4 )
0.099 * * [simplify]: iteration  4 :  780  enodes  (cost  4 )
0.120 * * [simplify]: iteration  5 :  3990  enodes  (cost  4 )
0.232 * * [simplify]: iteration  6 :  5002  enodes  (cost  4 )
0.232 * [simplify]: Simplified to:
   (- (pow a 4.0) (pow (- b a) 4.0))
0.233 * [progress]: [Phase 3 of 3] Extracting.
0.236 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (pow a 4.0) (pow (- b a) 4.0))
0.236 * * [simplify]: iteration  0 :  7  enodes  (cost  4 )
0.236 * [simplify]: Simplified to:
   (- (pow a 4.0) (pow (- b a) 4.0))
3.124 * [regime-testing]: End program error score: 21.706998801744515