55.928 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.010 * * * [progress]: [2/2] Setting up program.
0.011 * [progress]: [Phase 2 of 3] Improving.
0.012 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ x (* x x))
0.014 * * [simplify]: iteration  0 :  7  enodes  (cost  2 )
0.015 * * [simplify]: iteration  1 :  11  enodes  (cost  2 )
0.017 * * [simplify]: iteration  2 :  17  enodes  (cost  2 )
0.018 * * [simplify]: iteration  3 :  17  enodes  (cost  2 )
0.018 * [simplify]: Simplified to:
   (+ x (* x x))
0.018 * * [progress]: iteration 1 / 4
0.018 * * * [progress]: picking best candidate
0.019 * * * * [pick]: Picked  #<alt (λ (x) (+ x (* x x)))>
0.019 * * * [progress]: localizing error
0.022 * * * [progress]: generating rewritten candidates
0.022 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.025 * * * [progress]: generating series expansions
0.025 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.025 * [approximate]: Taking taylor expansion of (+ (pow x 2) x) in (x) around 0
0.025 * [taylor]: Taking taylor expansion of (+ (pow x 2) x) in x
0.025 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.025 * [taylor]: Taking taylor expansion of x in x
0.025 * [taylor]: Taking taylor expansion of x in x
0.025 * [taylor]: Taking taylor expansion of (+ (pow x 2) x) in x
0.025 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.025 * [taylor]: Taking taylor expansion of x in x
0.025 * [taylor]: Taking taylor expansion of x in x
0.034 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 x)) in (x) around 0
0.035 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 x)) in x
0.035 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.035 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.035 * [taylor]: Taking taylor expansion of x in x
0.035 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.035 * [taylor]: Taking taylor expansion of x in x
0.035 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 x)) in x
0.035 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.035 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.035 * [taylor]: Taking taylor expansion of x in x
0.036 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.036 * [taylor]: Taking taylor expansion of x in x
0.049 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 x)) in (x) around 0
0.049 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 x)) in x
0.049 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.049 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.049 * [taylor]: Taking taylor expansion of x in x
0.050 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.050 * [taylor]: Taking taylor expansion of x in x
0.050 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 x)) in x
0.050 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.050 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.050 * [taylor]: Taking taylor expansion of x in x
0.050 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.050 * [taylor]: Taking taylor expansion of x in x
0.065 * * * [progress]: simplifying candidates
0.065 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (exp x) (exp (* x x)))
  (log (+ x (* x x)))
  (exp (+ x (* x x)))
  (* (cbrt (+ x (* x x))) (cbrt (+ x (* x x))))
  (cbrt (+ x (* x x)))
  (* (* (+ x (* x x)) (+ x (* x x))) (+ x (* x x)))
  (sqrt (+ x (* x x)))
  (sqrt (+ x (* x x)))
  (+ (pow x 3) (pow (* x x) 3))
  (+ (* x x) (- (* (* x x) (* x x)) (* x (* x x))))
  (- (* x x) (* (* x x) (* x x)))
  (- x (* x x))
  (+ 1 x)
  (+ x 1)
  (+ (pow x 2) x)
  (+ (pow x 2) x)
  (+ (pow x 2) x)
0.068 * * [simplify]: iteration  0 :  79  enodes  (cost  58 )
0.071 * * [simplify]: iteration  1 :  324  enodes  (cost  50 )
0.078 * * [simplify]: iteration  2 :  1105  enodes  (cost  50 )
0.111 * * [simplify]: iteration  3 :  5001  enodes  (cost  50 )
0.112 * [simplify]: Simplified to:
   (exp (+ x (* x x)))
  (log (+ x (* x x)))
  (exp (+ x (* x x)))
  (* (cbrt (+ x (* x x))) (cbrt (+ x (* x x))))
  (cbrt (+ x (* x x)))
  (pow (+ x (* x x)) 3)
  (sqrt (+ x (* x x)))
  (sqrt (+ x (* x x)))
  (+ (pow x 3) (pow (* x x) 3))
  (- (+ (pow x 2) (pow x 4)) (pow x 3))
  (* x (- x (pow x 3)))
  (- x (* x x))
  (+ 1 x)
  (+ 1 x)
  (+ x (* x x))
  (+ x (* x x))
  (+ x (* x x))
0.112 * * * [progress]: adding candidates to table
0.130 * * [progress]: iteration 2 / 4
0.131 * * * [progress]: picking best candidate
0.133 * * * * [pick]: Picked  #<alt (λ (x) (* x (+ 1 x)))>
0.133 * * * [progress]: localizing error
0.136 * * * [progress]: generating rewritten candidates
0.136 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.142 * * * [progress]: generating series expansions
0.142 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.142 * [approximate]: Taking taylor expansion of (* x (+ x 1)) in (x) around 0
0.142 * [taylor]: Taking taylor expansion of (* x (+ x 1)) in x
0.142 * [taylor]: Taking taylor expansion of x in x
0.142 * [taylor]: Taking taylor expansion of (+ x 1) in x
0.142 * [taylor]: Taking taylor expansion of x in x
0.142 * [taylor]: Taking taylor expansion of 1 in x
0.143 * [taylor]: Taking taylor expansion of (* x (+ x 1)) in x
0.143 * [taylor]: Taking taylor expansion of x in x
0.143 * [taylor]: Taking taylor expansion of (+ x 1) in x
0.143 * [taylor]: Taking taylor expansion of x in x
0.143 * [taylor]: Taking taylor expansion of 1 in x
0.153 * [approximate]: Taking taylor expansion of (/ (+ (/ 1 x) 1) x) in (x) around 0
0.153 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 x) 1) x) in x
0.153 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 1) in x
0.153 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.153 * [taylor]: Taking taylor expansion of x in x
0.153 * [taylor]: Taking taylor expansion of 1 in x
0.153 * [taylor]: Taking taylor expansion of x in x
0.154 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 x) 1) x) in x
0.154 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 1) in x
0.154 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.154 * [taylor]: Taking taylor expansion of x in x
0.154 * [taylor]: Taking taylor expansion of 1 in x
0.154 * [taylor]: Taking taylor expansion of x in x
0.163 * [approximate]: Taking taylor expansion of (* -1 (/ (- 1 (/ 1 x)) x)) in (x) around 0
0.163 * [taylor]: Taking taylor expansion of (* -1 (/ (- 1 (/ 1 x)) x)) in x
0.163 * [taylor]: Taking taylor expansion of -1 in x
0.163 * [taylor]: Taking taylor expansion of (/ (- 1 (/ 1 x)) x) in x
0.163 * [taylor]: Taking taylor expansion of (- 1 (/ 1 x)) in x
0.163 * [taylor]: Taking taylor expansion of 1 in x
0.163 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.163 * [taylor]: Taking taylor expansion of x in x
0.164 * [taylor]: Taking taylor expansion of x in x
0.164 * [taylor]: Taking taylor expansion of (* -1 (/ (- 1 (/ 1 x)) x)) in x
0.164 * [taylor]: Taking taylor expansion of -1 in x
0.164 * [taylor]: Taking taylor expansion of (/ (- 1 (/ 1 x)) x) in x
0.164 * [taylor]: Taking taylor expansion of (- 1 (/ 1 x)) in x
0.164 * [taylor]: Taking taylor expansion of 1 in x
0.164 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.164 * [taylor]: Taking taylor expansion of x in x
0.165 * [taylor]: Taking taylor expansion of x in x
0.181 * * * [progress]: simplifying candidates
0.182 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* x (+ 1 x))
  (+ (log x) (log (+ 1 x)))
  (log (* x (+ 1 x)))
  (exp (* x (+ 1 x)))
  (* (* (* x x) x) (* (* (+ 1 x) (+ 1 x)) (+ 1 x)))
  (* (cbrt (* x (+ 1 x))) (cbrt (* x (+ 1 x))))
  (cbrt (* x (+ 1 x)))
  (* (* (* x (+ 1 x)) (* x (+ 1 x))) (* x (+ 1 x)))
  (sqrt (* x (+ 1 x)))
  (sqrt (* x (+ 1 x)))
  (* (sqrt x) (sqrt (+ 1 x)))
  (* (sqrt x) (sqrt (+ 1 x)))
  (* x 1)
  (* x x)
  (* 1 x)
  (* x x)
  (* x (* (cbrt (+ 1 x)) (cbrt (+ 1 x))))
  (* x (sqrt (+ 1 x)))
  (* x 1)
  (* x 1)
  (* (cbrt x) (+ 1 x))
  (* (sqrt x) (+ 1 x))
  (* x (+ 1 x))
  (* x (+ (pow 1 3) (pow x 3)))
  (* x (- (* 1 1) (* x x)))
  (+ (pow x 2) x)
  (+ (pow x 2) x)
  (+ (pow x 2) x)
0.185 * * [simplify]: iteration  0 :  120  enodes  (cost  81 )
0.188 * * [simplify]: iteration  1 :  627  enodes  (cost  71 )
0.201 * * [simplify]: iteration  2 :  2861  enodes  (cost  71 )
0.258 * * [simplify]: iteration  3 :  5002  enodes  (cost  71 )
0.259 * [simplify]: Simplified to:
   (* x (+ 1 x))
  (log (* x (+ 1 x)))
  (log (* x (+ 1 x)))
  (exp (* x (+ 1 x)))
  (pow (* x (+ 1 x)) 3)
  (* (cbrt (* x (+ 1 x))) (cbrt (* x (+ 1 x))))
  (cbrt (* x (+ 1 x)))
  (pow (* x (+ 1 x)) 3)
  (sqrt (* x (+ 1 x)))
  (sqrt (* x (+ 1 x)))
  (* (sqrt x) (sqrt (+ 1 x)))
  (* (sqrt x) (sqrt (+ 1 x)))
  x
  (pow x 2)
  x
  (pow x 2)
  (* x (* (cbrt (+ 1 x)) (cbrt (+ 1 x))))
  (* x (sqrt (+ 1 x)))
  x
  x
  (* (cbrt x) (+ 1 x))
  (* (sqrt x) (+ 1 x))
  (* x (+ 1 x))
  (+ (pow x 4) x)
  (* x (- 1 (* x x)))
  (* x (+ 1 x))
  (* x (+ 1 x))
  (* x (+ 1 x))
0.259 * * * [progress]: adding candidates to table
0.282 * * [progress]: iteration 3 / 4
0.282 * * * [progress]: picking best candidate
0.284 * * * * [pick]: Picked  #<alt (λ (x) (/ (+ (pow x 4) x) (+ (* 1 1) (- (* x x) (* 1 x)))))>
0.284 * * * [progress]: localizing error
0.294 * * * [progress]: generating rewritten candidates
0.294 * * * * [progress]: [ 1 / 4 ] rewriting at (2)
0.309 * * * * [progress]: [ 2 / 4 ] rewriting at (2 2 2)
0.312 * * * * [progress]: [ 3 / 4 ] rewriting at (2 2)
0.319 * * * * [progress]: [ 4 / 4 ] rewriting at (2 1)
0.326 * * * [progress]: generating series expansions
0.326 * * * * [progress]: [ 1 / 4 ] generating series at (2)
0.326 * [approximate]: Taking taylor expansion of (/ (+ x (pow x 4)) (- (+ (pow x 2) 1) x)) in (x) around 0
0.327 * [taylor]: Taking taylor expansion of (/ (+ x (pow x 4)) (- (+ (pow x 2) 1) x)) in x
0.327 * [taylor]: Taking taylor expansion of (+ x (pow x 4)) in x
0.327 * [taylor]: Taking taylor expansion of x in x
0.327 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.327 * [taylor]: Taking taylor expansion of x in x
0.327 * [taylor]: Taking taylor expansion of (- (+ (pow x 2) 1) x) in x
0.327 * [taylor]: Taking taylor expansion of (+ (pow x 2) 1) in x
0.327 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.327 * [taylor]: Taking taylor expansion of x in x
0.327 * [taylor]: Taking taylor expansion of 1 in x
0.327 * [taylor]: Taking taylor expansion of x in x
0.328 * [taylor]: Taking taylor expansion of (/ (+ x (pow x 4)) (- (+ (pow x 2) 1) x)) in x
0.328 * [taylor]: Taking taylor expansion of (+ x (pow x 4)) in x
0.328 * [taylor]: Taking taylor expansion of x in x
0.328 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.328 * [taylor]: Taking taylor expansion of x in x
0.328 * [taylor]: Taking taylor expansion of (- (+ (pow x 2) 1) x) in x
0.328 * [taylor]: Taking taylor expansion of (+ (pow x 2) 1) in x
0.328 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.328 * [taylor]: Taking taylor expansion of x in x
0.328 * [taylor]: Taking taylor expansion of 1 in x
0.328 * [taylor]: Taking taylor expansion of x in x
0.349 * [approximate]: Taking taylor expansion of (/ (+ (/ 1 (pow x 4)) (/ 1 x)) (- (+ (/ 1 (pow x 2)) 1) (/ 1 x))) in (x) around 0
0.349 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow x 4)) (/ 1 x)) (- (+ (/ 1 (pow x 2)) 1) (/ 1 x))) in x
0.349 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 4)) (/ 1 x)) in x
0.349 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.349 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.349 * [taylor]: Taking taylor expansion of x in x
0.349 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.350 * [taylor]: Taking taylor expansion of x in x
0.350 * [taylor]: Taking taylor expansion of (- (+ (/ 1 (pow x 2)) 1) (/ 1 x)) in x
0.350 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) 1) in x
0.350 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.350 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.350 * [taylor]: Taking taylor expansion of x in x
0.350 * [taylor]: Taking taylor expansion of 1 in x
0.350 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.350 * [taylor]: Taking taylor expansion of x in x
0.352 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 (pow x 4)) (/ 1 x)) (- (+ (/ 1 (pow x 2)) 1) (/ 1 x))) in x
0.352 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 4)) (/ 1 x)) in x
0.352 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.352 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.352 * [taylor]: Taking taylor expansion of x in x
0.352 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.352 * [taylor]: Taking taylor expansion of x in x
0.353 * [taylor]: Taking taylor expansion of (- (+ (/ 1 (pow x 2)) 1) (/ 1 x)) in x
0.353 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) 1) in x
0.353 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.353 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.353 * [taylor]: Taking taylor expansion of x in x
0.353 * [taylor]: Taking taylor expansion of 1 in x
0.353 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.353 * [taylor]: Taking taylor expansion of x in x
0.394 * [approximate]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) (/ 1 x)) (+ (/ 1 (pow x 2)) (+ (/ 1 x) 1))) in (x) around 0
0.394 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) (/ 1 x)) (+ (/ 1 (pow x 2)) (+ (/ 1 x) 1))) in x
0.394 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 x)) in x
0.394 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.394 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.394 * [taylor]: Taking taylor expansion of x in x
0.395 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.395 * [taylor]: Taking taylor expansion of x in x
0.395 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (+ (/ 1 x) 1)) in x
0.395 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.395 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.395 * [taylor]: Taking taylor expansion of x in x
0.396 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 1) in x
0.396 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.396 * [taylor]: Taking taylor expansion of x in x
0.396 * [taylor]: Taking taylor expansion of 1 in x
0.397 * [taylor]: Taking taylor expansion of (/ (- (/ 1 (pow x 4)) (/ 1 x)) (+ (/ 1 (pow x 2)) (+ (/ 1 x) 1))) in x
0.397 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 x)) in x
0.397 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.397 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.397 * [taylor]: Taking taylor expansion of x in x
0.397 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.398 * [taylor]: Taking taylor expansion of x in x
0.398 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (+ (/ 1 x) 1)) in x
0.398 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.398 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.398 * [taylor]: Taking taylor expansion of x in x
0.398 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 1) in x
0.398 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.398 * [taylor]: Taking taylor expansion of x in x
0.399 * [taylor]: Taking taylor expansion of 1 in x
0.433 * * * * [progress]: [ 2 / 4 ] generating series at (2 2 2)
0.433 * [approximate]: Taking taylor expansion of (- (pow x 2) x) in (x) around 0
0.433 * [taylor]: Taking taylor expansion of (- (pow x 2) x) in x
0.434 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.434 * [taylor]: Taking taylor expansion of x in x
0.434 * [taylor]: Taking taylor expansion of x in x
0.434 * [taylor]: Taking taylor expansion of (- (pow x 2) x) in x
0.434 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.434 * [taylor]: Taking taylor expansion of x in x
0.434 * [taylor]: Taking taylor expansion of x in x
0.441 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 x)) in (x) around 0
0.441 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 x)) in x
0.441 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.442 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.442 * [taylor]: Taking taylor expansion of x in x
0.442 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.442 * [taylor]: Taking taylor expansion of x in x
0.442 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 2)) (/ 1 x)) in x
0.442 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.442 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.442 * [taylor]: Taking taylor expansion of x in x
0.443 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.443 * [taylor]: Taking taylor expansion of x in x
0.457 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 x)) in (x) around 0
0.457 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 x)) in x
0.457 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.457 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.457 * [taylor]: Taking taylor expansion of x in x
0.458 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.458 * [taylor]: Taking taylor expansion of x in x
0.458 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (/ 1 x)) in x
0.458 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.458 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.458 * [taylor]: Taking taylor expansion of x in x
0.461 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.461 * [taylor]: Taking taylor expansion of x in x
0.473 * * * * [progress]: [ 3 / 4 ] generating series at (2 2)
0.474 * [approximate]: Taking taylor expansion of (- (+ (pow x 2) 1) x) in (x) around 0
0.474 * [taylor]: Taking taylor expansion of (- (+ (pow x 2) 1) x) in x
0.474 * [taylor]: Taking taylor expansion of (+ (pow x 2) 1) in x
0.474 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.474 * [taylor]: Taking taylor expansion of x in x
0.474 * [taylor]: Taking taylor expansion of 1 in x
0.474 * [taylor]: Taking taylor expansion of x in x
0.474 * [taylor]: Taking taylor expansion of (- (+ (pow x 2) 1) x) in x
0.474 * [taylor]: Taking taylor expansion of (+ (pow x 2) 1) in x
0.474 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.474 * [taylor]: Taking taylor expansion of x in x
0.474 * [taylor]: Taking taylor expansion of 1 in x
0.474 * [taylor]: Taking taylor expansion of x in x
0.477 * [approximate]: Taking taylor expansion of (- (+ (/ 1 (pow x 2)) 1) (/ 1 x)) in (x) around 0
0.477 * [taylor]: Taking taylor expansion of (- (+ (/ 1 (pow x 2)) 1) (/ 1 x)) in x
0.477 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) 1) in x
0.477 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.477 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.477 * [taylor]: Taking taylor expansion of x in x
0.477 * [taylor]: Taking taylor expansion of 1 in x
0.478 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.478 * [taylor]: Taking taylor expansion of x in x
0.478 * [taylor]: Taking taylor expansion of (- (+ (/ 1 (pow x 2)) 1) (/ 1 x)) in x
0.478 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) 1) in x
0.478 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.478 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.478 * [taylor]: Taking taylor expansion of x in x
0.478 * [taylor]: Taking taylor expansion of 1 in x
0.478 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.478 * [taylor]: Taking taylor expansion of x in x
0.483 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (+ (/ 1 x) 1)) in (x) around 0
0.483 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (+ (/ 1 x) 1)) in x
0.483 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.483 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.483 * [taylor]: Taking taylor expansion of x in x
0.484 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 1) in x
0.484 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.484 * [taylor]: Taking taylor expansion of x in x
0.484 * [taylor]: Taking taylor expansion of 1 in x
0.484 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 2)) (+ (/ 1 x) 1)) in x
0.484 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x
0.484 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.484 * [taylor]: Taking taylor expansion of x in x
0.485 * [taylor]: Taking taylor expansion of (+ (/ 1 x) 1) in x
0.485 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.485 * [taylor]: Taking taylor expansion of x in x
0.485 * [taylor]: Taking taylor expansion of 1 in x
0.489 * * * * [progress]: [ 4 / 4 ] generating series at (2 1)
0.489 * [approximate]: Taking taylor expansion of (+ x (pow x 4)) in (x) around 0
0.489 * [taylor]: Taking taylor expansion of (+ x (pow x 4)) in x
0.489 * [taylor]: Taking taylor expansion of x in x
0.489 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.489 * [taylor]: Taking taylor expansion of x in x
0.489 * [taylor]: Taking taylor expansion of (+ x (pow x 4)) in x
0.489 * [taylor]: Taking taylor expansion of x in x
0.489 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.489 * [taylor]: Taking taylor expansion of x in x
0.499 * [approximate]: Taking taylor expansion of (+ (/ 1 (pow x 4)) (/ 1 x)) in (x) around 0
0.499 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 4)) (/ 1 x)) in x
0.499 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.499 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.499 * [taylor]: Taking taylor expansion of x in x
0.500 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.500 * [taylor]: Taking taylor expansion of x in x
0.500 * [taylor]: Taking taylor expansion of (+ (/ 1 (pow x 4)) (/ 1 x)) in x
0.500 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.500 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.500 * [taylor]: Taking taylor expansion of x in x
0.501 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.501 * [taylor]: Taking taylor expansion of x in x
0.523 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 x)) in (x) around 0
0.523 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 x)) in x
0.523 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.523 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.523 * [taylor]: Taking taylor expansion of x in x
0.524 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.524 * [taylor]: Taking taylor expansion of x in x
0.524 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 x)) in x
0.524 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.524 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.524 * [taylor]: Taking taylor expansion of x in x
0.525 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.525 * [taylor]: Taking taylor expansion of x in x
0.550 * * * [progress]: simplifying candidates
0.551 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (- (log (+ (pow x 4) x)) (log (+ (* 1 1) (- (* x x) (* 1 x)))))
  (log (/ (+ (pow x 4) x) (+ (* 1 1) (- (* x x) (* 1 x)))))
  (exp (/ (+ (pow x 4) x) (+ (* 1 1) (- (* x x) (* 1 x)))))
  (/ (* (* (+ (pow x 4) x) (+ (pow x 4) x)) (+ (pow x 4) x)) (* (* (+ (* 1 1) (- (* x x) (* 1 x))) (+ (* 1 1) (- (* x x) (* 1 x)))) (+ (* 1 1) (- (* x x) (* 1 x)))))
  (* (cbrt (/ (+ (pow x 4) x) (+ (* 1 1) (- (* x x) (* 1 x))))) (cbrt (/ (+ (pow x 4) x) (+ (* 1 1) (- (* x x) (* 1 x))))))
  (cbrt (/ (+ (pow x 4) x) (+ (* 1 1) (- (* x x) (* 1 x)))))
  (* (* (/ (+ (pow x 4) x) (+ (* 1 1) (- (* x x) (* 1 x)))) (/ (+ (pow x 4) x) (+ (* 1 1) (- (* x x) (* 1 x))))) (/ (+ (pow x 4) x) (+ (* 1 1) (- (* x x) (* 1 x)))))
  (sqrt (/ (+ (pow x 4) x) (+ (* 1 1) (- (* x x) (* 1 x)))))
  (sqrt (/ (+ (pow x 4) x) (+ (* 1 1) (- (* x x) (* 1 x)))))
  (- (+ (pow x 4) x))
  (- (+ (* 1 1) (- (* x x) (* 1 x))))
  (/ (* (cbrt (+ (pow x 4) x)) (cbrt (+ (pow x 4) x))) (* (cbrt (+ (* 1 1) (- (* x x) (* 1 x)))) (cbrt (+ (* 1 1) (- (* x x) (* 1 x))))))
  (/ (cbrt (+ (pow x 4) x)) (cbrt (+ (* 1 1) (- (* x x) (* 1 x)))))
  (/ (* (cbrt (+ (pow x 4) x)) (cbrt (+ (pow x 4) x))) (sqrt (+ (* 1 1) (- (* x x) (* 1 x)))))
  (/ (cbrt (+ (pow x 4) x)) (sqrt (+ (* 1 1) (- (* x x) (* 1 x)))))
  (/ (* (cbrt (+ (pow x 4) x)) (cbrt (+ (pow x 4) x))) 1)
  (/ (cbrt (+ (pow x 4) x)) (+ (* 1 1) (- (* x x) (* 1 x))))
  (/ (* (cbrt (+ (pow x 4) x)) (cbrt (+ (pow x 4) x))) 1)
  (/ (cbrt (+ (pow x 4) x)) (+ 1 (- (* x x) (* 1 x))))
  (/ (sqrt (+ (pow x 4) x)) (* (cbrt (+ (* 1 1) (- (* x x) (* 1 x)))) (cbrt (+ (* 1 1) (- (* x x) (* 1 x))))))
  (/ (sqrt (+ (pow x 4) x)) (cbrt (+ (* 1 1) (- (* x x) (* 1 x)))))
  (/ (sqrt (+ (pow x 4) x)) (sqrt (+ (* 1 1) (- (* x x) (* 1 x)))))
  (/ (sqrt (+ (pow x 4) x)) (sqrt (+ (* 1 1) (- (* x x) (* 1 x)))))
  (/ (sqrt (+ (pow x 4) x)) 1)
  (/ (sqrt (+ (pow x 4) x)) (+ (* 1 1) (- (* x x) (* 1 x))))
  (/ (sqrt (+ (pow x 4) x)) 1)
  (/ (sqrt (+ (pow x 4) x)) (+ 1 (- (* x x) (* 1 x))))
  (/ 1 (* (cbrt (+ (* 1 1) (- (* x x) (* 1 x)))) (cbrt (+ (* 1 1) (- (* x x) (* 1 x))))))
  (/ (+ (pow x 4) x) (cbrt (+ (* 1 1) (- (* x x) (* 1 x)))))
  (/ 1 (sqrt (+ (* 1 1) (- (* x x) (* 1 x)))))
  (/ (+ (pow x 4) x) (sqrt (+ (* 1 1) (- (* x x) (* 1 x)))))
  (/ 1 1)
  (/ (+ (pow x 4) x) (+ (* 1 1) (- (* x x) (* 1 x))))
  (/ 1 1)
  (/ (+ (pow x 4) x) (+ 1 (- (* x x) (* 1 x))))
  (/ 1 (* (cbrt (+ (* 1 1) (- (* x x) (* 1 x)))) (cbrt (+ (* 1 1) (- (* x x) (* 1 x))))))
  (/ (+ (pow x 4) x) (cbrt (+ (* 1 1) (- (* x x) (* 1 x)))))
  (/ 1 (sqrt (+ (* 1 1) (- (* x x) (* 1 x)))))
  (/ (+ (pow x 4) x) (sqrt (+ (* 1 1) (- (* x x) (* 1 x)))))
  (/ 1 1)
  (/ (+ (pow x 4) x) (+ (* 1 1) (- (* x x) (* 1 x))))
  (/ 1 1)
  (/ (+ (pow x 4) x) (+ 1 (- (* x x) (* 1 x))))
  (/ 1 (+ (* 1 1) (- (* x x) (* 1 x))))
  (/ (+ (* 1 1) (- (* x x) (* 1 x))) (+ (pow x 4) x))
  (/ (+ (pow x 4) x) (* (cbrt (+ (* 1 1) (- (* x x) (* 1 x)))) (cbrt (+ (* 1 1) (- (* x x) (* 1 x))))))
  (/ (+ (pow x 4) x) (sqrt (+ (* 1 1) (- (* x x) (* 1 x)))))
  (/ (+ (pow x 4) x) 1)
  (/ (+ (pow x 4) x) 1)
  (/ (+ (* 1 1) (- (* x x) (* 1 x))) (cbrt (+ (pow x 4) x)))
  (/ (+ (* 1 1) (- (* x x) (* 1 x))) (sqrt (+ (pow x 4) x)))
  (/ (+ (* 1 1) (- (* x x) (* 1 x))) (+ (pow x 4) x))
  (/ (+ (* 1 1) (- (* x x) (* 1 x))) (+ (pow x 4) x))
  (/ (+ (pow x 4) x) (+ (pow (* 1 1) 3) (pow (- (* x x) (* 1 x)) 3)))
  (/ (+ (pow x 4) x) (- (* (* 1 1) (* 1 1)) (* (- (* x x) (* 1 x)) (- (* x x) (* 1 x)))))
  (* (+ (* 1 1) (- (* x x) (* 1 x))) (+ (* (pow x 4) (pow x 4)) (- (* x x) (* (pow x 4) x))))
  (* (+ (* 1 1) (- (* x x) (* 1 x))) (- (pow x 4) x))
  (/ (exp (* x x)) (exp (* 1 x)))
  (log (- (* x x) (* 1 x)))
  (exp (- (* x x) (* 1 x)))
  (* (cbrt (- (* x x) (* 1 x))) (cbrt (- (* x x) (* 1 x))))
  (cbrt (- (* x x) (* 1 x)))
  (* (* (- (* x x) (* 1 x)) (- (* x x) (* 1 x))) (- (* x x) (* 1 x)))
  (sqrt (- (* x x) (* 1 x)))
  (sqrt (- (* x x) (* 1 x)))
  (- (pow (* x x) 3) (pow (* 1 x) 3))
  (+ (* (* x x) (* x x)) (+ (* (* 1 x) (* 1 x)) (* (* x x) (* 1 x))))
  (- (* 1 x))
  (- (* (* x x) (* x x)) (* (* 1 x) (* 1 x)))
  (+ (* x x) (* 1 x))
  (- x 1)
  (- (* 1 x))
  (* (exp (* 1 1)) (/ (exp (* x x)) (exp (* 1 x))))
  (* (exp (* 1 1)) (exp (- (* x x) (* 1 x))))
  (log (+ (* 1 1) (- (* x x) (* 1 x))))
  (exp (+ (* 1 1) (- (* x x) (* 1 x))))
  (* (cbrt (+ (* 1 1) (- (* x x) (* 1 x)))) (cbrt (+ (* 1 1) (- (* x x) (* 1 x)))))
  (cbrt (+ (* 1 1) (- (* x x) (* 1 x))))
  (* (* (+ (* 1 1) (- (* x x) (* 1 x))) (+ (* 1 1) (- (* x x) (* 1 x)))) (+ (* 1 1) (- (* x x) (* 1 x))))
  (sqrt (+ (* 1 1) (- (* x x) (* 1 x))))
  (sqrt (+ (* 1 1) (- (* x x) (* 1 x))))
  (+ (pow (* 1 1) 3) (pow (- (* x x) (* 1 x)) 3))
  (+ (* (* 1 1) (* 1 1)) (- (* (- (* x x) (* 1 x)) (- (* x x) (* 1 x))) (* (* 1 1) (- (* x x) (* 1 x)))))
  (- (* (* 1 1) (* 1 1)) (* (- (* x x) (* 1 x)) (- (* x x) (* 1 x))))
  (- (* 1 1) (- (* x x) (* 1 x)))
  (+ 1 (- (* x x) (* 1 x)))
  (+ (* 1 1) (* x x))
  (+ (* 1 1) (* x x))
  (+ (* 1 1) (* x x))
  (* (exp (pow x 4)) (exp x))
  (log (+ (pow x 4) x))
  (exp (+ (pow x 4) x))
  (* (cbrt (+ (pow x 4) x)) (cbrt (+ (pow x 4) x)))
  (cbrt (+ (pow x 4) x))
  (* (* (+ (pow x 4) x) (+ (pow x 4) x)) (+ (pow x 4) x))
  (sqrt (+ (pow x 4) x))
  (sqrt (+ (pow x 4) x))
  (+ (pow (pow x 4) 3) (pow x 3))
  (+ (* (pow x 4) (pow x 4)) (- (* x x) (* (pow x 4) x)))
  (- (* (pow x 4) (pow x 4)) (* x x))
  (- (pow x 4) x)
  (+ (pow x 4) x)
  (+ (pow x 2) x)
  (+ (pow x 2) x)
  (+ (pow x 2) x)
  (- (pow x 2) x)
  (- (pow x 2) x)
  (- (pow x 2) x)
  (- (+ (pow x 2) 1) x)
  (- (+ (pow x 2) 1) x)
  (- (+ (pow x 2) 1) x)
  (+ x (pow x 4))
  (+ x (pow x 4))
  (+ x (pow x 4))
0.557 * * [simplify]: iteration  0 :  320  enodes  (cost  687 )
0.565 * * [simplify]: iteration  1 :  1618  enodes  (cost  617 )
0.597 * * [simplify]: iteration  2 :  5002  enodes  (cost  611 )
0.601 * [simplify]: Simplified to:
   (log (/ (+ (pow x 4) x) (+ 1 (- (* x x) (* 1 x)))))
  (log (/ (+ (pow x 4) x) (+ 1 (- (* x x) (* 1 x)))))
  (exp (/ (+ (pow x 4) x) (+ 1 (- (* x x) (* 1 x)))))
  (pow (/ (+ (pow x 4) x) (- (+ 1 (pow x 2)) x)) 3)
  (* (cbrt (/ (+ (pow x 4) x) (+ 1 (- (* x x) (* 1 x))))) (cbrt (/ (+ (pow x 4) x) (+ 1 (- (* x x) (* 1 x))))))
  (cbrt (/ (+ (pow x 4) x) (+ 1 (- (* x x) (* 1 x)))))
  (pow (/ (+ (pow x 4) x) (- (+ 1 (pow x 2)) x)) 3)
  (sqrt (/ (+ (pow x 4) x) (+ 1 (- (* x x) (* 1 x)))))
  (sqrt (/ (+ (pow x 4) x) (+ 1 (- (* x x) (* 1 x)))))
  (- (+ (pow x 4) x))
  (- (+ 1 (* x (- x 1))))
  (/ (* (cbrt (+ (pow x 4) x)) (cbrt (+ (pow x 4) x))) (* (cbrt (+ 1 (- (* x x) (* 1 x)))) (cbrt (+ 1 (- (* x x) (* 1 x))))))
  (/ (cbrt (+ (pow x 4) x)) (cbrt (+ 1 (- (* x x) (* 1 x)))))
  (/ (* (cbrt (+ (pow x 4) x)) (cbrt (+ (pow x 4) x))) (sqrt (+ 1 (- (* x x) (* 1 x)))))
  (/ (cbrt (+ (pow x 4) x)) (sqrt (+ 1 (- (* x x) (* 1 x)))))
  (* (cbrt (+ (pow x 4) x)) (cbrt (+ (pow x 4) x)))
  (/ (cbrt (+ (pow x 4) x)) (+ 1 (- (* x x) (* 1 x))))
  (* (cbrt (+ (pow x 4) x)) (cbrt (+ (pow x 4) x)))
  (/ (cbrt (+ (pow x 4) x)) (+ 1 (- (* x x) (* 1 x))))
  (/ (sqrt (+ (pow x 4) x)) (* (cbrt (+ 1 (- (* x x) (* 1 x)))) (cbrt (+ 1 (- (* x x) (* 1 x))))))
  (/ (sqrt (+ (pow x 4) x)) (cbrt (+ 1 (- (* x x) (* 1 x)))))
  (/ (sqrt (+ (pow x 4) x)) (sqrt (+ 1 (- (* x x) (* 1 x)))))
  (/ (sqrt (+ (pow x 4) x)) (sqrt (+ 1 (- (* x x) (* 1 x)))))
  (sqrt (+ (pow x 4) x))
  (/ (sqrt (+ (pow x 4) x)) (- (+ 1 (pow x 2)) x))
  (sqrt (+ (pow x 4) x))
  (/ (sqrt (+ (pow x 4) x)) (- (+ 1 (pow x 2)) x))
  (/ 1 (* (cbrt (+ 1 (- (* x x) (* 1 x)))) (cbrt (+ 1 (- (* x x) (* 1 x))))))
  (/ (+ (pow x 4) x) (cbrt (+ 1 (- (* x x) (* 1 x)))))
  (/ 1 (sqrt (+ 1 (- (* x x) (* 1 x)))))
  (/ (+ (pow x 4) x) (sqrt (+ 1 (- (* x x) (* 1 x)))))
  1
  (/ (+ (pow x 4) x) (- (+ 1 (pow x 2)) x))
  1
  (/ (+ (pow x 4) x) (- (+ 1 (pow x 2)) x))
  (/ 1 (* (cbrt (+ 1 (- (* x x) (* 1 x)))) (cbrt (+ 1 (- (* x x) (* 1 x))))))
  (/ (+ (pow x 4) x) (cbrt (+ 1 (- (* x x) (* 1 x)))))
  (/ 1 (sqrt (+ 1 (- (* x x) (* 1 x)))))
  (/ (+ (pow x 4) x) (sqrt (+ 1 (- (* x x) (* 1 x)))))
  1
  (/ (+ (pow x 4) x) (- (+ 1 (pow x 2)) x))
  1
  (/ (+ (pow x 4) x) (- (+ 1 (pow x 2)) x))
  (/ 1 (- (+ 1 (pow x 2)) x))
  (/ (- (+ 1 (pow x 2)) x) (+ (pow x 4) x))
  (/ (+ (pow x 4) x) (* (cbrt (+ 1 (- (* x x) (* 1 x)))) (cbrt (+ 1 (- (* x x) (* 1 x))))))
  (/ (+ (pow x 4) x) (sqrt (+ 1 (- (* x x) (* 1 x)))))
  (+ (pow x 4) x)
  (+ (pow x 4) x)
  (/ (+ 1 (- (* x x) (* 1 x))) (cbrt (+ (pow x 4) x)))
  (/ (- (+ 1 (pow x 2)) x) (sqrt (+ (pow x 4) x)))
  (/ (- (+ 1 (pow x 2)) x) (+ (pow x 4) x))
  (/ (- (+ 1 (pow x 2)) x) (+ (pow x 4) x))
  (/ (+ (pow x 4) x) (+ 1 (pow (- (* x x) (* 1 x)) 3)))
  (/ (+ (pow x 4) x) (- 1 (* (pow x 2) (* (- x 1) (- x 1)))))
  (* (- (+ (pow x 8) (pow x 2)) (pow x 5)) (- (+ 1 (* x x)) x))
  (* (- (pow x 4) x) (- (+ 1 (* x x)) x))
  (exp (- (pow x 2) x))
  (log (* x (- x 1)))
  (exp (- (pow x 2) x))
  (* (cbrt (- (* x x) (* 1 x))) (cbrt (- (* x x) (* 1 x))))
  (cbrt (- (* x x) (* 1 x)))
  (pow (* x (- x 1)) 3)
  (sqrt (- (* x x) (* 1 x)))
  (sqrt (- (* x x) (* 1 x)))
  (- (pow x 6) (pow x 3))
  (* x (+ (pow x 3) (* x (+ x 1))))
  (- x)
  (* x (- (pow x 3) x))
  (* x (+ x 1))
  (- x 1)
  (- x)
  (exp (+ 1 (* x (- x 1))))
  (exp (+ 1 (* x (- x 1))))
  (log (- (+ 1 (pow x 2)) x))
  (exp (+ 1 (* x (- x 1))))
  (* (cbrt (+ 1 (- (* x x) (* 1 x)))) (cbrt (+ 1 (- (* x x) (* 1 x)))))
  (cbrt (+ 1 (- (* x x) (* 1 x))))
  (pow (- (+ 1 (pow x 2)) x) 3)
  (sqrt (+ 1 (- (* x x) (* 1 x))))
  (sqrt (+ 1 (- (* x x) (* 1 x))))
  (+ 1 (pow (- (* x x) (* 1 x)) 3))
  (+ (* (* x (- x 1)) (- (* x (- x 1)) 1)) 1)
  (- 1 (* (pow x 2) (* (- x 1) (- x 1))))
  (+ (- 1 (pow x 2)) x)
  (- (+ 1 (pow x 2)) x)
  (+ (pow x 2) 1)
  (+ (pow x 2) 1)
  (+ (pow x 2) 1)
  (exp (+ (pow x 4) x))
  (log (+ (pow x 4) x))
  (exp (+ (pow x 4) x))
  (* (cbrt (+ (pow x 4) x)) (cbrt (+ (pow x 4) x)))
  (cbrt (+ (pow x 4) x))
  (pow (+ (pow x 4) x) 3)
  (sqrt (+ (pow x 4) x))
  (sqrt (+ (pow x 4) x))
  (+ (pow (pow x 4) 3) (pow x 3))
  (- (+ (pow x 8) (pow x 2)) (pow x 5))
  (- (pow x 8) (pow x 2))
  (- (pow x 4) x)
  (+ (pow x 4) x)
  (* x (+ x 1))
  (* x (+ x 1))
  (* x (+ x 1))
  (* x (- x 1))
  (* x (- x 1))
  (* x (- x 1))
  (- (+ 1 (pow x 2)) x)
  (- (+ 1 (pow x 2)) x)
  (- (+ 1 (pow x 2)) x)
  (+ (pow x 4) x)
  (+ (pow x 4) x)
  (+ (pow x 4) x)
0.601 * * * [progress]: adding candidates to table
0.749 * [progress]: [Phase 3 of 3] Extracting.
0.749 * * [regime]: Finding splitpoints for: (#<alt (λ (x) (/ (+ (pow x 4) x) (+ (* 1 1) (- (* x x) (* 1 x)))))> #<alt (λ (x) (+ x (* x x)))>)
0.749 * * * [regime-changes]: Trying 2 branch expressions: ((+ x (* x x)) x)
0.749 * * * * [regimes]: Trying to branch on (+ x (* x x)) from (#<alt (λ (x) (/ (+ (pow x 4) x) (+ (* 1 1) (- (* x x) (* 1 x)))))> #<alt (λ (x) (+ x (* x x)))>)
0.759 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x) (/ (+ (pow x 4) x) (+ (* 1 1) (- (* x x) (* 1 x)))))> #<alt (λ (x) (+ x (* x x)))>)
0.771 * * * [regime]: Found split indices: #<option (#s(si 1 255))>
0.772 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ x (* x x))
0.772 * * [simplify]: iteration  0 :  4  enodes  (cost  2 )
0.773 * * [simplify]: iteration  1 :  4  enodes  (cost  2 )
0.773 * [simplify]: Simplified to:
   (+ x (* x x))
1.098 * [regime-testing]: Baseline error score: 0.011001375171896487
1.099 * [regime-testing]: Oracle error score: 0.00450056257032129
1.100 * [regime-testing]: End program error score: 0.011001375171896487