0.417 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.025 * * * [progress]: [2/2] Setting up program.
0.027 * [progress]: [Phase 2 of 3] Improving.
0.027 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (+ (* (/ x y) (- z t)) t)
0.028 * * [simplify]: iteration  0 :  8  enodes  (cost  9 )
0.029 * * [simplify]: iteration  1 :  14  enodes  (cost  9 )
0.031 * * [simplify]: iteration  2 :  30  enodes  (cost  9 )
0.035 * * [simplify]: iteration  3 :  49  enodes  (cost  9 )
0.040 * * [simplify]: iteration  4 :  73  enodes  (cost  9 )
0.050 * * [simplify]: iteration  5 :  95  enodes  (cost  9 )
0.062 * * [simplify]: iteration  6 :  114  enodes  (cost  9 )
0.080 * * [simplify]: iteration  7 :  136  enodes  (cost  9 )
0.099 * * [simplify]: iteration  8 :  186  enodes  (cost  9 )
0.129 * * [simplify]: iteration  9 :  262  enodes  (cost  9 )