4.434 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.020 * * * [progress]: [2/2] Setting up program.
0.022 * [progress]: [Phase 2 of 3] Improving.
0.023 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (exp2 (- x 1.0)) (exp2 x))
0.025 * * [simplify]: iteration  0 :  10  enodes  (cost  4 )
0.026 * * [simplify]: iteration  1 :  12  enodes  (cost  4 )
0.027 * * [simplify]: iteration  2 :  12  enodes  (cost  4 )
0.027 * [simplify]: Simplified to:
   (- (exp2 (- x 1.0)) (exp2 x))
0.027 * [progress]: [Phase 3 of 3] Extracting.
0.029 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (exp2 (- x 1.0)) (exp2 x))
0.030 * * [simplify]: iteration  0 :  6  enodes  (cost  4 )
0.030 * [simplify]: Simplified to:
   (- (exp2 (- x 1.0)) (exp2 x))
0.635 * [regime-testing]: End program error score: 0.0075009376172021506