4.105 * [progress]: [Phase 1 of 3] Setting up.
0.000 * * * [progress]: [1/2] Preparing points
0.016 * * * [progress]: [2/2] Setting up program.
0.018 * [progress]: [Phase 2 of 3] Improving.
0.018 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- x (/ (- (exp2 x) 2.0) (* 2.0 x)))
0.020 * * [simplify]: iteration  0 :  17  enodes  (cost  5 )
0.021 * * [simplify]: iteration  1 :  38  enodes  (cost  5 )
0.022 * * [simplify]: iteration  2 :  62  enodes  (cost  5 )
0.024 * * [simplify]: iteration  3 :  95  enodes  (cost  5 )
0.025 * * [simplify]: iteration  4 :  167  enodes  (cost  5 )
0.027 * * [simplify]: iteration  5 :  206  enodes  (cost  5 )
0.029 * * [simplify]: iteration  6 :  249  enodes  (cost  5 )
0.031 * * [simplify]: iteration  7 :  310  enodes  (cost  5 )
0.033 * * [simplify]: iteration  8 :  472  enodes  (cost  5 )
0.036 * * [simplify]: iteration  9 :  538  enodes  (cost  5 )
0.038 * * [simplify]: iteration  10 :  540  enodes  (cost  5 )
0.041 * * [simplify]: iteration  11 :  540  enodes  (cost  5 )
0.041 * [simplify]: Simplified to:
   (- x (/ (- (exp2 x) 2.0) (* 2.0 x)))
0.041 * [progress]: [Phase 3 of 3] Extracting.
0.043 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- x (/ (- (exp2 x) 2.0) (* 2.0 x)))
0.043 * * [simplify]: iteration  0 :  8  enodes  (cost  5 )
0.044 * * [simplify]: iteration  1 :  8  enodes  (cost  5 )
0.044 * [simplify]: Simplified to:
   (- x (/ (- (exp2 x) 2.0) (* 2.0 x)))
0.693 * [regime-testing]: End program error score: 0.01702336854624857