2.101 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.026 * * * [progress]: [2/2] Setting up program.
0.028 * [progress]: [Phase 2 of 3] Improving.
0.028 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (+ x (/ (* (- y z) (- t x)) (- a z)))
0.029 * * [simplify]: iteration  0 :  11  enodes  (cost  13 )
0.030 * * [simplify]: iteration  1 :  20  enodes  (cost  13 )
0.033 * * [simplify]: iteration  2 :  45  enodes  (cost  13 )
0.042 * * [simplify]: iteration  3 :  111  enodes  (cost  13 )
0.058 * * [simplify]: iteration  4 :  250  enodes  (cost  13 )
0.100 * * [simplify]: iteration  5 :  525  enodes  (cost  13 )