3.525 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.024 * * * [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 x) (- a z))))
0.028 * * [simplify]: iteration  0 :  11  enodes  (cost  13 )
0.029 * * [simplify]: iteration  1 :  23  enodes  (cost  13 )
0.032 * * [simplify]: iteration  2 :  45  enodes  (cost  12 )
0.038 * * [simplify]: iteration  3 :  122  enodes  (cost  12 )
0.055 * * [simplify]: iteration  4 :  303  enodes  (cost  12 )
0.107 * * [simplify]: iteration  5 :  741  enodes  (cost  12 )