6.409 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.059 * * * [progress]: [2/2] Setting up program.
0.062 * [progress]: [Phase 2 of 3] Improving.
0.063 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (cosh (* (+ x y) (- x y)))
0.064 * * [simplify]: iteration  0 :  16  enodes  (cost  4 )
0.066 * * [simplify]: iteration  1 :  44  enodes  (cost  4 )
0.067 * * [simplify]: iteration  2 :  145  enodes  (cost  4 )
0.069 * * [simplify]: iteration  3 :  389  enodes  (cost  4 )
0.074 * * [simplify]: iteration  4 :  1075  enodes  (cost  4 )
0.087 * * [simplify]: iteration  5 :  2852  enodes  (cost  4 )
0.126 * * [simplify]: iteration  6 :  5001  enodes  (cost  4 )
0.126 * [simplify]: Simplified to:
   (cosh (* (+ x y) (- x y)))
0.127 * [progress]: [Phase 3 of 3] Extracting.
0.129 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (cosh (* (+ x y) (- x y)))
0.130 * * [simplify]: iteration  0 :  8  enodes  (cost  4 )
0.130 * * [simplify]: iteration  1 :  8  enodes  (cost  4 )
0.130 * [simplify]: Simplified to:
   (cosh (* (+ x y) (- x y)))
1.987 * [regime-testing]: End program error score: 0.032860995998239474