0.190 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.030 * * * [progress]: [2/2] Setting up program.
0.032 * [progress]: [Phase 2 of 3] Improving.
0.032 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (exp (* a x)) 1.0)
0.033 * * [simplify]: iteration  0 :  6  enodes  (cost  6 )
0.033 * * [simplify]: iteration  1 :  11  enodes  (cost  6 )
0.035 * * [simplify]: iteration  2 :  18  enodes  (cost  6 )
0.037 * * [simplify]: iteration  3 :  27  enodes  (cost  6 )
0.040 * * [simplify]: iteration  4 :  51  enodes  (cost  6 )
0.048 * * [simplify]: iteration  5 :  110  enodes  (cost  6 )
0.074 * * [simplify]: iteration  6 :  270  enodes  (cost  6 )