3.946 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.013 * * * [progress]: [2/2] Setting up program.
0.014 * [progress]: [Phase 2 of 3] Improving.
0.015 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (exp (* (* x y) y))
0.016 * * [simplify]: iteration  0 :  5  enodes  (cost  6 )
0.016 * * [simplify]: iteration  1 :  11  enodes  (cost  6 )
0.018 * * [simplify]: iteration  2 :  22  enodes  (cost  6 )
0.020 * * [simplify]: iteration  3 :  40  enodes  (cost  6 )
0.025 * * [simplify]: iteration  4 :  84  enodes  (cost  6 )
0.037 * * [simplify]: iteration  5 :  195  enodes  (cost  6 )
0.074 * * [simplify]: iteration  6 :  489  enodes  (cost  6 )