1.764 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.019 * * * [progress]: [2/2] Setting up program.
0.020 * [progress]: [Phase 2 of 3] Improving.
0.021 * [simplify]: Simplifying:
  (- (* a a) (* b b))
0.021 * * [simplify]: Extracting # 0 : cost  0
0.021 * * [simplify]: Extracting # 1 : cost  0
0.021 * * [simplify]: Extracting # 2 : cost  0
0.021 * * [simplify]: Extracting # 3 : cost  0
0.021 * * [simplify]: Extracting # 4 : cost  0
0.021 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.022 * * [simplify]: Extracting # 0 : cost  0
0.022 * * [simplify]: Extracting # 1 : cost  0
0.022 * * [simplify]: Extracting # 2 : cost  0
0.022 * * [simplify]: iteration  1 :  10  enodes  (cost  7 )
0.023 * * [simplify]: Extracting # 0 : cost  0
0.023 * * [simplify]: Extracting # 1 : cost  0
0.023 * * [simplify]: Extracting # 2 : cost  0
0.024 * * [simplify]: iteration  2 :  17  enodes  (cost  7 )
0.026 * * [simplify]: Extracting # 0 : cost  0
0.026 * * [simplify]: Extracting # 1 : cost  0
0.026 * * [simplify]: Extracting # 2 : cost  0
0.026 * * [simplify]: iteration  3 :  32  enodes  (cost  7 )
0.033 * * [simplify]: Extracting # 0 : cost  0
0.033 * * [simplify]: Extracting # 1 : cost  0
0.033 * * [simplify]: Extracting # 2 : cost  0
0.033 * * [simplify]: iteration  4 :  58  enodes  (cost  7 )
0.051 * * [simplify]: Extracting # 0 : cost  0
0.051 * * [simplify]: Extracting # 1 : cost  0
0.051 * * [simplify]: Extracting # 2 : cost  0
0.051 * * [simplify]: iteration  5 :  129  enodes  (cost  7 )
0.079 * * [simplify]: Extracting # 0 : cost  0
0.080 * * [simplify]: Extracting # 1 : cost  0
0.080 * * [simplify]: Extracting # 2 : cost  0
0.080 * * [simplify]: Extracting # 3 : cost  0
0.080 * * [simplify]: iteration  6 :  187  enodes  (cost  7 )
0.137 * * [simplify]: Extracting # 0 : cost  0
0.137 * * [simplify]: Extracting # 1 : cost  0
0.137 * * [simplify]: Extracting # 2 : cost  0
0.138 * * [simplify]: Extracting # 3 : cost  0
0.138 * * [simplify]: iteration  7 :  369  enodes  (cost  7 )
0.627 * * [simplify]: Extracting # 0 : cost  0
0.628 * * [simplify]: Extracting # 1 : cost  0
0.630 * * [simplify]: Extracting # 2 : cost  0
0.632 * * [simplify]: Extracting # 3 : cost  0
0.633 * * [simplify]: Extracting # 4 : cost  0
0.635 * * [simplify]: iteration  8 :  1551  enodes  (cost  7 )
9.033 * * [simplify]: Extracting # 0 : cost  0
9.044 * * [simplify]: Extracting # 1 : cost  0
9.046 * * [simplify]: Extracting # 2 : cost  0
9.049 * * [simplify]: Extracting # 3 : cost  0
9.052 * * [simplify]: Extracting # 4 : cost  0
9.056 * * [simplify]: iteration done:  5000  enodes  (cost  7 )
9.056 * [simplify]: Simplified to:
  (* (- a b) (+ a b))
9.058 * * [progress]: iteration 1 / 4
9.058 * * * [progress]: picking best candidate
9.059 * * * * [pick]: Picked  #<alt (λ (a b) (- (* a a) (* b b)))>
9.059 * * * [progress]: localizing error
9.063 * * * [progress]: generating rewritten candidates
9.063 * * * [progress]: generating series expansions
9.063 * * * [progress]: simplifying candidates
9.063 * [simplify]: Simplifying:
  
9.063 * * [simplify]: Extracting # 0 : cost  0
9.063 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
9.063 * * [simplify]: Extracting # 0 : cost  0
9.063 * * [simplify]: iteration done:  0  enodes  (cost  0 )
9.063 * [simplify]: Simplified to:
  
9.064 * * * [progress]: adding candidates to table
9.064 * [progress]: [Phase 3 of 3] Extracting.
9.065 * [simplify]: Simplifying:
  (- (* a a) (* b b))
9.065 * * [simplify]: Extracting # 0 : cost  0
9.065 * * [simplify]: Extracting # 1 : cost  0
9.065 * * [simplify]: Extracting # 2 : cost  0
9.065 * * [simplify]: Extracting # 3 : cost  0
9.065 * * [simplify]: Extracting # 4 : cost  0
9.065 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
9.065 * * [simplify]: Extracting # 0 : cost  0
9.065 * * [simplify]: iteration done:  5  enodes  (cost  7 )
9.065 * [simplify]: Simplified to:
  (- (* a a) (* b b))
9.653 * [regime-testing]: End program error score: 0.006772087136072298
9.670 * [regime-testing]: Target error score: 0.0007500937617202151