1.944 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.019 * * * [progress]: [2/2] Setting up program.
0.021 * [progress]: [Phase 2 of 3] Improving.
0.021 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (+ x (* (- y x) (/ z t)))
0.022 * * [simplify]: iteration  0 :  8  enodes  (cost  9 )
0.023 * * [simplify]: iteration  1 :  14  enodes  (cost  9 )
0.025 * * [simplify]: iteration  2 :  24  enodes  (cost  9 )
0.028 * * [simplify]: iteration  3 :  53  enodes  (cost  9 )
0.035 * * [simplify]: iteration  4 :  85  enodes  (cost  9 )
0.046 * * [simplify]: iteration  5 :  114  enodes  (cost  9 )
0.067 * * [simplify]: iteration  6 :  137  enodes  (cost  9 )
0.089 * * [simplify]: iteration  7 :  164  enodes  (cost  9 )
0.119 * * [simplify]: iteration  8 :  209  enodes  (cost  9 )
0.156 * * [simplify]: iteration  9 :  275  enodes  (cost  9 )