9.473 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.017 * * * [progress]: [2/2] Setting up program.
0.020 * [progress]: [Phase 2 of 3] Improving.
0.020 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (- (+ a b) c) d)
0.022 * * [simplify]: iteration  0 :  15  enodes  (cost  3 )
0.023 * * [simplify]: iteration  1 :  40  enodes  (cost  3 )
0.024 * * [simplify]: iteration  2 :  88  enodes  (cost  3 )
0.026 * * [simplify]: iteration  3 :  165  enodes  (cost  3 )
0.028 * * [simplify]: iteration  4 :  309  enodes  (cost  3 )
0.030 * * [simplify]: iteration  5 :  506  enodes  (cost  3 )
0.033 * * [simplify]: iteration  6 :  783  enodes  (cost  3 )
0.039 * * [simplify]: iteration  7 :  1094  enodes  (cost  3 )
0.043 * * [simplify]: iteration  8 :  1401  enodes  (cost  3 )
0.046 * * [simplify]: iteration  9 :  1401  enodes  (cost  3 )
0.046 * [simplify]: Simplified to:
   (+ (- (+ a b) c) d)
0.047 * [progress]: [Phase 3 of 3] Extracting.
0.050 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (- (+ a b) c) d)
0.050 * * [simplify]: iteration  0 :  9  enodes  (cost  3 )
0.050 * * [simplify]: iteration  1 :  9  enodes  (cost  3 )
0.050 * [simplify]: Simplified to:
   (+ (- (+ a b) c) d)
0.834 * [regime-testing]: End program error score: 0.0006250781347668458