0.158 * [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 z)) (- t (* a z)))
0.022 * * [simplify]: iteration  0 :  10  enodes  (cost  11 )
0.024 * * [simplify]: iteration  1 :  19  enodes  (cost  11 )
0.026 * * [simplify]: iteration  2 :  38  enodes  (cost  11 )
0.030 * * [simplify]: iteration  3 :  60  enodes  (cost  11 )
0.037 * * [simplify]: iteration  4 :  88  enodes  (cost  11 )
0.047 * * [simplify]: iteration  5 :  120  enodes  (cost  11 )
0.065 * * [simplify]: iteration  6 :  180  enodes  (cost  11 )
0.090 * * [simplify]: iteration  7 :  364  enodes  (cost  11 )