3.953 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.021 * * * [progress]: [2/2] Setting up program.
0.023 * [progress]: [Phase 2 of 3] Improving.
0.024 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (* 9.0 (pow x 4.0)) (* (* y y) (- (* y y) 2.0)))
0.025 * * [simplify]: iteration  0 :  11  enodes  (cost  15 )
0.026 * * [simplify]: iteration  1 :  23  enodes  (cost  15 )
0.029 * * [simplify]: iteration  2 :  57  enodes  (cost  15 )
0.038 * * [simplify]: iteration  3 :  138  enodes  (cost  15 )
0.061 * * [simplify]: iteration  4 :  289  enodes  (cost  15 )
0.143 * * [simplify]: iteration  5 :  566  enodes  (cost  15 )