33.855 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.262 * * * [progress]: [2/2] Setting up program.
0.265 * [progress]: [Phase 2 of 3] Improving.
0.265 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (+ (/ x 2.0) (* y x)) z)
0.268 * * [simplify]: iteration  0 :  19  enodes  (cost  9 )
0.268 * * [simplify]: iteration  1 :  19  enodes  (cost  9 )
0.268 * [simplify]: Simplified to:
   (+ (+ (/ x 2.0) (* x y)) z)
0.271 * * [progress]: iteration 1 / 4
0.271 * * * [progress]: picking best candidate
0.273 * * * * [pick]: Picked  #<alt (λ (x y z) (+ (+ (/ x 2.0) (* y x)) z))>
0.273 * * * [progress]: localizing error
0.279 * * * [progress]: generating rewritten candidates
0.279 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
0.285 * * * [progress]: generating series expansions
0.285 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
0.285 * [approximate]: Taking taylor expansion of (+ (* 0.5 x) (* x y)) in (x y) around 0
0.285 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* x y)) in y
0.285 * [taylor]: Taking taylor expansion of (* 0.5 x) in y
0.285 * [taylor]: Taking taylor expansion of 0.5 in y
0.285 * [taylor]: Taking taylor expansion of x in y
0.285 * [taylor]: Taking taylor expansion of (* x y) in y
0.285 * [taylor]: Taking taylor expansion of x in y
0.285 * [taylor]: Taking taylor expansion of y in y
0.285 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* x y)) in x
0.285 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.285 * [taylor]: Taking taylor expansion of 0.5 in x
0.285 * [taylor]: Taking taylor expansion of x in x
0.285 * [taylor]: Taking taylor expansion of (* x y) in x
0.285 * [taylor]: Taking taylor expansion of x in x
0.285 * [taylor]: Taking taylor expansion of y in x
0.285 * [taylor]: Taking taylor expansion of (+ (* 0.5 x) (* x y)) in x
0.285 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.285 * [taylor]: Taking taylor expansion of 0.5 in x
0.285 * [taylor]: Taking taylor expansion of x in x
0.285 * [taylor]: Taking taylor expansion of (* x y) in x
0.285 * [taylor]: Taking taylor expansion of x in x
0.286 * [taylor]: Taking taylor expansion of y in x
0.286 * [taylor]: Taking taylor expansion of 0 in y
0.286 * [taylor]: Taking taylor expansion of (+ y 0.5) in y
0.286 * [taylor]: Taking taylor expansion of y in y
0.286 * [taylor]: Taking taylor expansion of 0.5 in y
0.286 * [taylor]: Taking taylor expansion of 0 in y
0.286 * [taylor]: Taking taylor expansion of 0 in y
0.286 * [taylor]: Taking taylor expansion of 0 in y
0.286 * [approximate]: Taking taylor expansion of (+ (/ 1 (* x y)) (* 0.5 (/ 1 x))) in (x y) around 0
0.286 * [taylor]: Taking taylor expansion of (+ (/ 1 (* x y)) (* 0.5 (/ 1 x))) in y
0.286 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.286 * [taylor]: Taking taylor expansion of (* x y) in y
0.286 * [taylor]: Taking taylor expansion of x in y
0.286 * [taylor]: Taking taylor expansion of y in y
0.287 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
0.287 * [taylor]: Taking taylor expansion of 0.5 in y
0.287 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.287 * [taylor]: Taking taylor expansion of x in y
0.287 * [taylor]: Taking taylor expansion of (+ (/ 1 (* x y)) (* 0.5 (/ 1 x))) in x
0.287 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.287 * [taylor]: Taking taylor expansion of (* x y) in x
0.287 * [taylor]: Taking taylor expansion of x in x
0.287 * [taylor]: Taking taylor expansion of y in x
0.287 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.287 * [taylor]: Taking taylor expansion of 0.5 in x
0.287 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.287 * [taylor]: Taking taylor expansion of x in x
0.287 * [taylor]: Taking taylor expansion of (+ (/ 1 (* x y)) (* 0.5 (/ 1 x))) in x
0.287 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.287 * [taylor]: Taking taylor expansion of (* x y) in x
0.287 * [taylor]: Taking taylor expansion of x in x
0.287 * [taylor]: Taking taylor expansion of y in x
0.287 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.287 * [taylor]: Taking taylor expansion of 0.5 in x
0.287 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.287 * [taylor]: Taking taylor expansion of x in x
0.287 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 0.5) in y
0.287 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.287 * [taylor]: Taking taylor expansion of y in y
0.287 * [taylor]: Taking taylor expansion of 0.5 in y
0.287 * [taylor]: Taking taylor expansion of 0 in y
0.288 * [taylor]: Taking taylor expansion of 0 in y
0.288 * [taylor]: Taking taylor expansion of 0 in y
0.288 * [taylor]: Taking taylor expansion of 0 in y
0.288 * [approximate]: Taking taylor expansion of (- (/ 1 (* x y)) (* 0.5 (/ 1 x))) in (x y) around 0
0.288 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (* 0.5 (/ 1 x))) in y
0.288 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.288 * [taylor]: Taking taylor expansion of (* x y) in y
0.288 * [taylor]: Taking taylor expansion of x in y
0.289 * [taylor]: Taking taylor expansion of y in y
0.289 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in y
0.289 * [taylor]: Taking taylor expansion of 0.5 in y
0.289 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.289 * [taylor]: Taking taylor expansion of x in y
0.289 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (* 0.5 (/ 1 x))) in x
0.289 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.289 * [taylor]: Taking taylor expansion of (* x y) in x
0.289 * [taylor]: Taking taylor expansion of x in x
0.289 * [taylor]: Taking taylor expansion of y in x
0.289 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.289 * [taylor]: Taking taylor expansion of 0.5 in x
0.289 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.289 * [taylor]: Taking taylor expansion of x in x
0.289 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (* 0.5 (/ 1 x))) in x
0.289 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.289 * [taylor]: Taking taylor expansion of (* x y) in x
0.289 * [taylor]: Taking taylor expansion of x in x
0.289 * [taylor]: Taking taylor expansion of y in x
0.289 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.289 * [taylor]: Taking taylor expansion of 0.5 in x
0.289 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.289 * [taylor]: Taking taylor expansion of x in x
0.289 * [taylor]: Taking taylor expansion of (- (/ 1 y) 0.5) in y
0.289 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.289 * [taylor]: Taking taylor expansion of y in y
0.289 * [taylor]: Taking taylor expansion of 0.5 in y
0.289 * [taylor]: Taking taylor expansion of 0 in y
0.290 * [taylor]: Taking taylor expansion of 0 in y
0.290 * [taylor]: Taking taylor expansion of 0 in y
0.290 * [taylor]: Taking taylor expansion of 0 in y
0.290 * * * [progress]: simplifying candidates
0.291 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* (exp (/ x 2.0)) (exp (* y x)))
  (log (+ (/ x 2.0) (* y x)))
  (exp (+ (/ x 2.0) (* y x)))
  (* (cbrt (+ (/ x 2.0) (* y x))) (cbrt (+ (/ x 2.0) (* y x))))
  (cbrt (+ (/ x 2.0) (* y x)))
  (* (* (+ (/ x 2.0) (* y x)) (+ (/ x 2.0) (* y x))) (+ (/ x 2.0) (* y x)))
  (sqrt (+ (/ x 2.0) (* y x)))
  (sqrt (+ (/ x 2.0) (* y x)))
  (+ (pow (/ x 2.0) 3) (pow (* y x) 3))
  (+ (* (/ x 2.0) (/ x 2.0)) (- (* (* y x) (* y x)) (* (/ x 2.0) (* y x))))
  (- (* (/ x 2.0) (/ x 2.0)) (* (* y x) (* y x)))
  (- (/ x 2.0) (* y x))
  (+ (* 0.5 x) (* x y))
  (+ (* 0.5 x) (* x y))
  (+ (* 0.5 x) (* x y))
0.340 * * [simplify]: iteration  0 :  5278  enodes  (cost  137 )
0.341 * [simplify]: Simplified to:
   (exp (+ (/ x 2.0) (* x y)))
  (log (+ (/ x 2.0) (* x y)))
  (exp (+ (/ x 2.0) (* x y)))
  (* (cbrt (+ (/ x 2.0) (* x y))) (cbrt (+ (/ x 2.0) (* x y))))
  (cbrt (+ (/ x 2.0) (* x y)))
  (pow (+ (/ x 2.0) (* x y)) 3)
  (sqrt (+ (/ x 2.0) (* x y)))
  (sqrt (+ (/ x 2.0) (* x y)))
  (+ (pow (/ x 2.0) 3) (pow (* x y) 3))
  (* x (+ (* y (- (* x y) (/ x 2.0))) (/ x (* 2.0 2.0))))
  (* x (- (/ x (* 2.0 2.0)) (* x (* y y))))
  (- (/ x 2.0) (* x y))
  (* x (+ y 0.5))
  (* x (+ y 0.5))
  (* x (+ y 0.5))
0.341 * * * [progress]: adding candidates to table
0.364 * * [progress]: iteration 2 / 4
0.364 * * * [progress]: picking best candidate
0.366 * * * * [pick]: Picked  #<alt (λ (x y z) (+ (* x (+ y 0.5)) z))>
0.366 * * * [progress]: localizing error
0.371 * * * [progress]: generating rewritten candidates
0.371 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
0.377 * * * [progress]: generating series expansions
0.377 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
0.377 * [approximate]: Taking taylor expansion of (* x (+ y 0.5)) in (x y) around 0
0.377 * [taylor]: Taking taylor expansion of (* x (+ y 0.5)) in y
0.377 * [taylor]: Taking taylor expansion of x in y
0.377 * [taylor]: Taking taylor expansion of (+ y 0.5) in y
0.377 * [taylor]: Taking taylor expansion of y in y
0.377 * [taylor]: Taking taylor expansion of 0.5 in y
0.377 * [taylor]: Taking taylor expansion of (* x (+ y 0.5)) in x
0.377 * [taylor]: Taking taylor expansion of x in x
0.378 * [taylor]: Taking taylor expansion of (+ y 0.5) in x
0.378 * [taylor]: Taking taylor expansion of y in x
0.378 * [taylor]: Taking taylor expansion of 0.5 in x
0.378 * [taylor]: Taking taylor expansion of (* x (+ y 0.5)) in x
0.378 * [taylor]: Taking taylor expansion of x in x
0.378 * [taylor]: Taking taylor expansion of (+ y 0.5) in x
0.378 * [taylor]: Taking taylor expansion of y in x
0.378 * [taylor]: Taking taylor expansion of 0.5 in x
0.378 * [taylor]: Taking taylor expansion of 0 in y
0.378 * [taylor]: Taking taylor expansion of (+ y 0.5) in y
0.378 * [taylor]: Taking taylor expansion of y in y
0.378 * [taylor]: Taking taylor expansion of 0.5 in y
0.378 * [taylor]: Taking taylor expansion of 0 in y
0.378 * [taylor]: Taking taylor expansion of 0 in y
0.378 * [taylor]: Taking taylor expansion of 0 in y
0.378 * [approximate]: Taking taylor expansion of (/ (+ (/ 1 y) 0.5) x) in (x y) around 0
0.378 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) 0.5) x) in y
0.378 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 0.5) in y
0.378 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.378 * [taylor]: Taking taylor expansion of y in y
0.378 * [taylor]: Taking taylor expansion of 0.5 in y
0.378 * [taylor]: Taking taylor expansion of x in y
0.379 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) 0.5) x) in x
0.379 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 0.5) in x
0.379 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.379 * [taylor]: Taking taylor expansion of y in x
0.379 * [taylor]: Taking taylor expansion of 0.5 in x
0.379 * [taylor]: Taking taylor expansion of x in x
0.379 * [taylor]: Taking taylor expansion of (/ (+ (/ 1 y) 0.5) x) in x
0.379 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 0.5) in x
0.379 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.379 * [taylor]: Taking taylor expansion of y in x
0.379 * [taylor]: Taking taylor expansion of 0.5 in x
0.379 * [taylor]: Taking taylor expansion of x in x
0.379 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 0.5) in y
0.379 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.379 * [taylor]: Taking taylor expansion of y in y
0.379 * [taylor]: Taking taylor expansion of 0.5 in y
0.379 * [taylor]: Taking taylor expansion of 0 in y
0.379 * [taylor]: Taking taylor expansion of 0 in y
0.380 * [taylor]: Taking taylor expansion of 0 in y
0.380 * [taylor]: Taking taylor expansion of 0 in y
0.380 * [approximate]: Taking taylor expansion of (* -1 (/ (- 0.5 (/ 1 y)) x)) in (x y) around 0
0.380 * [taylor]: Taking taylor expansion of (* -1 (/ (- 0.5 (/ 1 y)) x)) in y
0.380 * [taylor]: Taking taylor expansion of -1 in y
0.380 * [taylor]: Taking taylor expansion of (/ (- 0.5 (/ 1 y)) x) in y
0.380 * [taylor]: Taking taylor expansion of (- 0.5 (/ 1 y)) in y
0.380 * [taylor]: Taking taylor expansion of 0.5 in y
0.380 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.380 * [taylor]: Taking taylor expansion of y in y
0.380 * [taylor]: Taking taylor expansion of x in y
0.380 * [taylor]: Taking taylor expansion of (* -1 (/ (- 0.5 (/ 1 y)) x)) in x
0.380 * [taylor]: Taking taylor expansion of -1 in x
0.380 * [taylor]: Taking taylor expansion of (/ (- 0.5 (/ 1 y)) x) in x
0.380 * [taylor]: Taking taylor expansion of (- 0.5 (/ 1 y)) in x
0.380 * [taylor]: Taking taylor expansion of 0.5 in x
0.380 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.380 * [taylor]: Taking taylor expansion of y in x
0.380 * [taylor]: Taking taylor expansion of x in x
0.381 * [taylor]: Taking taylor expansion of (* -1 (/ (- 0.5 (/ 1 y)) x)) in x
0.381 * [taylor]: Taking taylor expansion of -1 in x
0.381 * [taylor]: Taking taylor expansion of (/ (- 0.5 (/ 1 y)) x) in x
0.381 * [taylor]: Taking taylor expansion of (- 0.5 (/ 1 y)) in x
0.381 * [taylor]: Taking taylor expansion of 0.5 in x
0.381 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.381 * [taylor]: Taking taylor expansion of y in x
0.381 * [taylor]: Taking taylor expansion of x in x
0.381 * [taylor]: Taking taylor expansion of (* -1 (- 0.5 (/ 1 y))) in y
0.381 * [taylor]: Taking taylor expansion of -1 in y
0.381 * [taylor]: Taking taylor expansion of (- 0.5 (/ 1 y)) in y
0.381 * [taylor]: Taking taylor expansion of 0.5 in y
0.381 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.381 * [taylor]: Taking taylor expansion of y in y
0.381 * [taylor]: Taking taylor expansion of 0 in y
0.381 * [taylor]: Taking taylor expansion of 0 in y
0.382 * [taylor]: Taking taylor expansion of 0 in y
0.382 * [taylor]: Taking taylor expansion of 0 in y
0.382 * * * [progress]: simplifying candidates
0.383 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (* x (+ y 0.5))
  (+ (log x) (log (+ y 0.5)))
  (log (* x (+ y 0.5)))
  (exp (* x (+ y 0.5)))
  (* (* (* x x) x) (* (* (+ y 0.5) (+ y 0.5)) (+ y 0.5)))
  (* (cbrt (* x (+ y 0.5))) (cbrt (* x (+ y 0.5))))
  (cbrt (* x (+ y 0.5)))
  (* (* (* x (+ y 0.5)) (* x (+ y 0.5))) (* x (+ y 0.5)))
  (sqrt (* x (+ y 0.5)))
  (sqrt (* x (+ y 0.5)))
  (* (sqrt x) (sqrt (+ y 0.5)))
  (* (sqrt x) (sqrt (+ y 0.5)))
  (* x y)
  (* x 0.5)
  (* y x)
  (* 0.5 x)
  (* x (* (cbrt (+ y 0.5)) (cbrt (+ y 0.5))))
  (* x (sqrt (+ y 0.5)))
  (* x 1)
  (* x 1)
  (* (cbrt x) (+ y 0.5))
  (* (sqrt x) (+ y 0.5))
  (* x (+ y 0.5))
  (* x (+ (pow y 3) (pow 0.5 3)))
  (* x (- (* y y) (* 0.5 0.5)))
  (+ (* 0.5 x) (* x y))
  (+ (* 0.5 x) (* x y))
  (+ (* 0.5 x) (* x y))
0.452 * * [simplify]: iteration  0 :  4889  enodes  (cost  163 )
0.452 * * [simplify]: iteration  1 :  4889  enodes  (cost  163 )
0.453 * [simplify]: Simplified to:
   (* x (+ y 0.5))
  (log (* x (+ y 0.5)))
  (log (* x (+ y 0.5)))
  (exp (* x (+ y 0.5)))
  (pow (* x (+ y 0.5)) 3)
  (* (cbrt (* x (+ y 0.5))) (cbrt (* x (+ y 0.5))))
  (cbrt (* x (+ y 0.5)))
  (pow (* x (+ y 0.5)) 3)
  (sqrt (* x (+ y 0.5)))
  (sqrt (* x (+ y 0.5)))
  (* (sqrt x) (sqrt (+ y 0.5)))
  (* (sqrt x) (sqrt (+ y 0.5)))
  (* x y)
  (* x 0.5)
  (* x y)
  (* x 0.5)
  (* x (* (cbrt (+ y 0.5)) (cbrt (+ y 0.5))))
  (* x (sqrt (+ y 0.5)))
  x
  x
  (* (+ y 0.5) (cbrt x))
  (* (+ y 0.5) (sqrt x))
  (* x (+ y 0.5))
  (* x (+ (pow y 3) (pow 0.5 3)))
  (* x (- (* y y) (* 0.5 0.5)))
  (* x (+ y 0.5))
  (* x (+ y 0.5))
  (* x (+ y 0.5))
0.453 * * * [progress]: adding candidates to table
0.486 * [progress]: [Phase 3 of 3] Extracting.
0.487 * * [regime]: Finding splitpoints for: (#<alt (λ (x y z) (+ (* x (+ y 0.5)) z))> #<alt (λ (x y z) (+ (+ (/ x 2.0) (* y x)) z))>)
0.487 * * * [regime-changes]: Trying 5 branch expressions: ((+ (/ x 2.0) (* y x)) (+ (+ (/ x 2.0) (* y x)) z) z y x)
0.487 * * * * [regimes]: Trying to branch on (+ (/ x 2.0) (* y x)) from (#<alt (λ (x y z) (+ (* x (+ y 0.5)) z))> #<alt (λ (x y z) (+ (+ (/ x 2.0) (* y x)) z))>)
0.525 * * * * [regimes]: Trying to branch on (+ (+ (/ x 2.0) (* y x)) z) from (#<alt (λ (x y z) (+ (* x (+ y 0.5)) z))> #<alt (λ (x y z) (+ (+ (/ x 2.0) (* y x)) z))>)
0.565 * * * * [regimes]: Trying to branch on z from (#<alt (λ (x y z) (+ (* x (+ y 0.5)) z))> #<alt (λ (x y z) (+ (+ (/ x 2.0) (* y x)) z))>)
0.604 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y z) (+ (* x (+ y 0.5)) z))> #<alt (λ (x y z) (+ (+ (/ x 2.0) (* y x)) z))>)
0.641 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y z) (+ (* x (+ y 0.5)) z))> #<alt (λ (x y z) (+ (+ (/ x 2.0) (* y x)) z))>)
0.679 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
0.680 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (* x (+ y 0.5)) z)
0.680 * * [simplify]: iteration  0 :  10  enodes  (cost  7 )
0.680 * * [simplify]: iteration  1 :  10  enodes  (cost  7 )
0.681 * [simplify]: Simplified to:
   (+ (* x (+ y 0.5)) z)
1.372 * [regime-testing]: End program error score: 0.008126015751968996