328.473 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.054 * * * [progress]: [2/2] Setting up program.
0.058 * [progress]: [Phase 2 of 3] Improving.
0.059 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (pow x 4.0) (pow y 4.0))
0.059 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
0.060 * * [simplify]: iteration  1 :  14  enodes  (cost  7 )
0.062 * * [simplify]: iteration  2 :  29  enodes  (cost  7 )
0.066 * * [simplify]: iteration  3 :  69  enodes  (cost  7 )
0.079 * * [simplify]: iteration  4 :  181  enodes  (cost  7 )
0.140 * * [simplify]: iteration  5 :  567  enodes  (cost  7 )
0.532 * * [simplify]: iteration  6 :  2493  enodes  (cost  7 )
1.746 * * [simplify]: iteration  done :  5000  enodes  (cost  7 )
1.746 * [simplify]: Simplified to:
   (- (pow x 4.0) (pow y 4.0))
1.746 * * [progress]: iteration 1 / 4
1.746 * * * [progress]: picking best candidate
1.749 * * * * [pick]: Picked  #<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))>
1.749 * * * [progress]: localizing error
1.755 * * * [progress]: generating rewritten candidates
1.755 * * * [progress]: generating series expansions
1.755 * * * [progress]: simplifying candidates
1.755 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   
1.755 * [simplify]: Simplified to:
   
1.755 * * * [progress]: adding candidates to table
1.755 * [progress]: [Phase 3 of 3] Extracting.
1.758 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (pow x 4.0) (pow y 4.0))
1.759 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
1.759 * * [simplify]: iteration  done :  6  enodes  (cost  7 )
1.759 * [simplify]: Simplified to:
   (- (pow x 4.0) (pow y 4.0))
3.690 * [regime-testing]: End program error score: 0.0025003125390673834