2.293 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.016 * * * [progress]: [2/2] Setting up program.
0.018 * [progress]: [Phase 2 of 3] Improving.
0.019 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (/ x (* (- y z) (- t z)))
0.020 * * [simplify]: iteration  0 :  8  enodes  (cost  9 )
0.021 * * [simplify]: iteration  1 :  14  enodes  (cost  9 )
0.022 * * [simplify]: iteration  2 :  30  enodes  (cost  9 )
0.027 * * [simplify]: iteration  3 :  68  enodes  (cost  9 )
0.036 * * [simplify]: iteration  4 :  151  enodes  (cost  9 )
0.065 * * [simplify]: iteration  5 :  297  enodes  (cost  9 )
0.130 * * [simplify]: iteration  6 :  523  enodes  (cost  9 )
0.239 * * [simplify]: iteration  7 :  800  enodes  (cost  9 )
0.409 * * [simplify]: iteration  8 :  1238  enodes  (cost  9 )