0.205 * [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) (* y z)) (* y y)) (* y y))
0.028 * * [simplify]: iteration  0 :  9  enodes  (cost  15 )
0.029 * * [simplify]: iteration  1 :  21  enodes  (cost  15 )
0.033 * * [simplify]: iteration  2 :  72  enodes  (cost  7 )
0.049 * * [simplify]: iteration  3 :  207  enodes  (cost  5 )
0.105 * * [simplify]: iteration  4 :  738  enodes  (cost  5 )