4.679 * [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 (cos x) 2.0) (pow (sin x) 2.0))
0.089 * * [simplify]: iteration  0 :  15  enodes  (cost  5 )
0.090 * * [simplify]: iteration  1 :  30  enodes  (cost  5 )
0.091 * * [simplify]: iteration  2 :  69  enodes  (cost  5 )
0.093 * * [simplify]: iteration  3 :  205  enodes  (cost  5 )
0.098 * * [simplify]: iteration  4 :  777  enodes  (cost  5 )
0.118 * * [simplify]: iteration  5 :  3987  enodes  (cost  5 )
0.233 * * [simplify]: iteration  6 :  5001  enodes  (cost  5 )
0.234 * [simplify]: Simplified to:
   (- (pow (cos x) 2.0) (pow (sin x) 2.0))
0.234 * [progress]: [Phase 3 of 3] Extracting.
0.237 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (pow (cos x) 2.0) (pow (sin x) 2.0))
0.238 * * [simplify]: iteration  0 :  7  enodes  (cost  5 )
0.238 * [simplify]: Simplified to:
   (- (pow (cos x) 2.0) (pow (sin x) 2.0))
3.114 * [regime-testing]: End program error score: 0.4645111399474715