5.137 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.014 * * * [progress]: [2/2] Setting up program.
0.016 * [progress]: [Phase 2 of 3] Improving.
0.016 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673)
0.016 * [simplify]: Sending expressions to egg_math:
 (+ (- (* h0 (- h1 h2)) (* h1 h3)) h4)
0.018 * * [simplify]: iteration  0 :  20  enodes  (cost  5 )
0.020 * * [simplify]: iteration  1 :  48  enodes  (cost  5 )
0.021 * * [simplify]: iteration  2 :  105  enodes  (cost  5 )
0.023 * * [simplify]: iteration  3 :  224  enodes  (cost  5 )
0.026 * * [simplify]: iteration  4 :  418  enodes  (cost  4 )
0.030 * * [simplify]: iteration  5 :  681  enodes  (cost  4 )
0.036 * * [simplify]: iteration  6 :  970  enodes  (cost  4 )
0.044 * * [simplify]: iteration  7 :  1398  enodes  (cost  4 )
0.052 * * [simplify]: iteration  8 :  1987  enodes  (cost  4 )
0.060 * * [simplify]: iteration  9 :  1991  enodes  (cost  4 )
0.067 * * [simplify]: iteration  10 :  1991  enodes  (cost  4 )
0.067 * [simplify]: Simplified to:
   (- (fma y x 0.918938533204673) (fma x 1.0 (* y 0.5)))
0.070 * * [progress]: iteration 1 / 4
0.070 * * * [progress]: picking best candidate
0.072 * * * * [pick]: Picked  #<alt (λ (x y) (+ (- (* x (- y 1.0)) (* y 0.5)) 0.918938533204673))>
0.072 * * * [progress]: localizing error
0.078 * * * [progress]: generating rewritten candidates
0.079 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
0.102 * * * [progress]: generating series expansions
0.102 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
0.102 * [approximate]: Taking taylor expansion of (- (* x y) (+ (* 1.0 x) (* 0.5 y))) in (x y) around 0
0.102 * [taylor]: Taking taylor expansion of (- (* x y) (+ (* 1.0 x) (* 0.5 y))) in y
0.102 * [taylor]: Taking taylor expansion of (* x y) in y
0.102 * [taylor]: Taking taylor expansion of x in y
0.102 * [taylor]: Taking taylor expansion of y in y
0.102 * [taylor]: Taking taylor expansion of (+ (* 1.0 x) (* 0.5 y)) in y
0.102 * [taylor]: Taking taylor expansion of (* 1.0 x) in y
0.102 * [taylor]: Taking taylor expansion of 1.0 in y
0.102 * [taylor]: Taking taylor expansion of x in y
0.102 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.102 * [taylor]: Taking taylor expansion of 0.5 in y
0.102 * [taylor]: Taking taylor expansion of y in y
0.102 * [taylor]: Taking taylor expansion of (- (* x y) (+ (* 1.0 x) (* 0.5 y))) in x
0.102 * [taylor]: Taking taylor expansion of (* x y) in x
0.102 * [taylor]: Taking taylor expansion of x in x
0.102 * [taylor]: Taking taylor expansion of y in x
0.102 * [taylor]: Taking taylor expansion of (+ (* 1.0 x) (* 0.5 y)) in x
0.102 * [taylor]: Taking taylor expansion of (* 1.0 x) in x
0.102 * [taylor]: Taking taylor expansion of 1.0 in x
0.103 * [taylor]: Taking taylor expansion of x in x
0.103 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
0.103 * [taylor]: Taking taylor expansion of 0.5 in x
0.103 * [taylor]: Taking taylor expansion of y in x
0.103 * [taylor]: Taking taylor expansion of (- (* x y) (+ (* 1.0 x) (* 0.5 y))) in x
0.103 * [taylor]: Taking taylor expansion of (* x y) in x
0.103 * [taylor]: Taking taylor expansion of x in x
0.103 * [taylor]: Taking taylor expansion of y in x
0.103 * [taylor]: Taking taylor expansion of (+ (* 1.0 x) (* 0.5 y)) in x
0.103 * [taylor]: Taking taylor expansion of (* 1.0 x) in x
0.103 * [taylor]: Taking taylor expansion of 1.0 in x
0.103 * [taylor]: Taking taylor expansion of x in x
0.103 * [taylor]: Taking taylor expansion of (* 0.5 y) in x
0.103 * [taylor]: Taking taylor expansion of 0.5 in x
0.103 * [taylor]: Taking taylor expansion of y in x
0.103 * [taylor]: Taking taylor expansion of (- (* 0.5 y)) in y
0.103 * [taylor]: Taking taylor expansion of (* 0.5 y) in y
0.103 * [taylor]: Taking taylor expansion of 0.5 in y
0.103 * [taylor]: Taking taylor expansion of y in y
0.106 * [taylor]: Taking taylor expansion of (- y 1.0) in y
0.106 * [taylor]: Taking taylor expansion of y in y
0.106 * [taylor]: Taking taylor expansion of 1.0 in y
0.110 * [taylor]: Taking taylor expansion of 0 in y
0.111 * [approximate]: Taking taylor expansion of (- (/ 1 (* x y)) (+ (* 0.5 (/ 1 y)) (* 1.0 (/ 1 x)))) in (x y) around 0
0.111 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (+ (* 0.5 (/ 1 y)) (* 1.0 (/ 1 x)))) in y
0.111 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.111 * [taylor]: Taking taylor expansion of (* x y) in y
0.111 * [taylor]: Taking taylor expansion of x in y
0.111 * [taylor]: Taking taylor expansion of y in y
0.111 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 1.0 (/ 1 x))) in y
0.111 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.111 * [taylor]: Taking taylor expansion of 0.5 in y
0.111 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.111 * [taylor]: Taking taylor expansion of y in y
0.112 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in y
0.112 * [taylor]: Taking taylor expansion of 1.0 in y
0.112 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.112 * [taylor]: Taking taylor expansion of x in y
0.112 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (+ (* 0.5 (/ 1 y)) (* 1.0 (/ 1 x)))) in x
0.112 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.112 * [taylor]: Taking taylor expansion of (* x y) in x
0.112 * [taylor]: Taking taylor expansion of x in x
0.112 * [taylor]: Taking taylor expansion of y in x
0.112 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 1.0 (/ 1 x))) in x
0.112 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
0.112 * [taylor]: Taking taylor expansion of 0.5 in x
0.112 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.112 * [taylor]: Taking taylor expansion of y in x
0.112 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
0.112 * [taylor]: Taking taylor expansion of 1.0 in x
0.112 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.112 * [taylor]: Taking taylor expansion of x in x
0.112 * [taylor]: Taking taylor expansion of (- (/ 1 (* x y)) (+ (* 0.5 (/ 1 y)) (* 1.0 (/ 1 x)))) in x
0.112 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.112 * [taylor]: Taking taylor expansion of (* x y) in x
0.112 * [taylor]: Taking taylor expansion of x in x
0.112 * [taylor]: Taking taylor expansion of y in x
0.113 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (* 1.0 (/ 1 x))) in x
0.113 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
0.113 * [taylor]: Taking taylor expansion of 0.5 in x
0.113 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.113 * [taylor]: Taking taylor expansion of y in x
0.113 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
0.113 * [taylor]: Taking taylor expansion of 1.0 in x
0.113 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.113 * [taylor]: Taking taylor expansion of x in x
0.114 * [taylor]: Taking taylor expansion of (- (/ 1 y) 1.0) in y
0.114 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.114 * [taylor]: Taking taylor expansion of y in y
0.114 * [taylor]: Taking taylor expansion of 1.0 in y
0.116 * [taylor]: Taking taylor expansion of (- (* 0.5 (/ 1 y))) in y
0.116 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.116 * [taylor]: Taking taylor expansion of 0.5 in y
0.116 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.116 * [taylor]: Taking taylor expansion of y in y
0.119 * [approximate]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (+ (* 1.0 (/ 1 x)) (/ 1 (* x y)))) in (x y) around 0
0.119 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (+ (* 1.0 (/ 1 x)) (/ 1 (* x y)))) in y
0.119 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.119 * [taylor]: Taking taylor expansion of 0.5 in y
0.119 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.119 * [taylor]: Taking taylor expansion of y in y
0.119 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (/ 1 (* x y))) in y
0.119 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in y
0.119 * [taylor]: Taking taylor expansion of 1.0 in y
0.119 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.119 * [taylor]: Taking taylor expansion of x in y
0.119 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.119 * [taylor]: Taking taylor expansion of (* x y) in y
0.119 * [taylor]: Taking taylor expansion of x in y
0.119 * [taylor]: Taking taylor expansion of y in y
0.119 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (+ (* 1.0 (/ 1 x)) (/ 1 (* x y)))) in x
0.119 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
0.119 * [taylor]: Taking taylor expansion of 0.5 in x
0.119 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.120 * [taylor]: Taking taylor expansion of y in x
0.120 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (/ 1 (* x y))) in x
0.120 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
0.120 * [taylor]: Taking taylor expansion of 1.0 in x
0.120 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.120 * [taylor]: Taking taylor expansion of x in x
0.120 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.120 * [taylor]: Taking taylor expansion of (* x y) in x
0.120 * [taylor]: Taking taylor expansion of x in x
0.120 * [taylor]: Taking taylor expansion of y in x
0.120 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 y)) (+ (* 1.0 (/ 1 x)) (/ 1 (* x y)))) in x
0.120 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in x
0.120 * [taylor]: Taking taylor expansion of 0.5 in x
0.120 * [taylor]: Taking taylor expansion of (/ 1 y) in x
0.121 * [taylor]: Taking taylor expansion of y in x
0.121 * [taylor]: Taking taylor expansion of (+ (* 1.0 (/ 1 x)) (/ 1 (* x y))) in x
0.121 * [taylor]: Taking taylor expansion of (* 1.0 (/ 1 x)) in x
0.121 * [taylor]: Taking taylor expansion of 1.0 in x
0.121 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.121 * [taylor]: Taking taylor expansion of x in x
0.121 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.121 * [taylor]: Taking taylor expansion of (* x y) in x
0.121 * [taylor]: Taking taylor expansion of x in x
0.121 * [taylor]: Taking taylor expansion of y in x
0.122 * [taylor]: Taking taylor expansion of (+ (/ 1 y) 1.0) in y
0.122 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.122 * [taylor]: Taking taylor expansion of y in y
0.122 * [taylor]: Taking taylor expansion of 1.0 in y
0.123 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 y)) in y
0.124 * [taylor]: Taking taylor expansion of 0.5 in y
0.124 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.124 * [taylor]: Taking taylor expansion of y in y
0.125 * * * [progress]: simplifying candidates
0.126 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (fma x (- y 1.0) (- (* 0.5 y)))
  (fma (- 0.5) y (* 0.5 y))
  (expm1 (- (* x (- y 1.0)) (* y 0.5)))
  (log1p (- (* x (- y 1.0)) (* y 0.5)))
  (- (* y 0.5))
  (/ (exp (* x (- y 1.0))) (exp (* y 0.5)))
  (log (- (* x (- y 1.0)) (* y 0.5)))
  (exp (- (* x (- y 1.0)) (* y 0.5)))
  (* (cbrt (- (* x (- y 1.0)) (* y 0.5))) (cbrt (- (* x (- y 1.0)) (* y 0.5))))
  (cbrt (- (* x (- y 1.0)) (* y 0.5)))
  (* (* (- (* x (- y 1.0)) (* y 0.5)) (- (* x (- y 1.0)) (* y 0.5))) (- (* x (- y 1.0)) (* y 0.5)))
  (sqrt (- (* x (- y 1.0)) (* y 0.5)))
  (sqrt (- (* x (- y 1.0)) (* y 0.5)))
  (- (pow (* x (- y 1.0)) 3) (pow (* y 0.5) 3))
  (+ (* (* x (- y 1.0)) (* x (- y 1.0))) (+ (* (* y 0.5) (* y 0.5)) (* (* x (- y 1.0)) (* y 0.5))))
  (- (* y 0.5))
  (- (* (* x (- y 1.0)) (* x (- y 1.0))) (* (* y 0.5) (* y 0.5)))
  (+ (* x (- y 1.0)) (* y 0.5))
  (- (* x (fma (- (cbrt 1.0)) (* (cbrt 1.0) (cbrt 1.0)) (* (cbrt 1.0) (* (cbrt 1.0) (cbrt 1.0))))) (* y 0.5))
  (- (* x (fma (- (sqrt 1.0)) (sqrt 1.0) (* (sqrt 1.0) (sqrt 1.0)))) (* y 0.5))
  (- (* x (fma (- 1.0) 1 (* 1.0 1))) (* y 0.5))
  (- (* x (fma (- (cbrt 1.0)) (* (cbrt 1.0) (cbrt 1.0)) (* (cbrt 1.0) (* (cbrt 1.0) (cbrt 1.0))))) (* y 0.5))
  (- (* x (fma (- (sqrt 1.0)) (sqrt 1.0) (* (sqrt 1.0) (sqrt 1.0)))) (* y 0.5))
  (- (* x (fma (- 1.0) 1 (* 1.0 1))) (* y 0.5))
  (- (* x (fma (- (cbrt 1.0)) (* (cbrt 1.0) (cbrt 1.0)) (* (cbrt 1.0) (* (cbrt 1.0) (cbrt 1.0))))) (* y 0.5))
  (- (* x (fma (- (sqrt 1.0)) (sqrt 1.0) (* (sqrt 1.0) (sqrt 1.0)))) (* y 0.5))
  (- (* x (fma (- 1.0) 1 (* 1.0 1))) (* y 0.5))
  (- (* x (- 1.0)) (* y 0.5))
  (- (* x (- 1.0)) (* y 0.5))
  (- (* (fma (- (cbrt 1.0)) (* (cbrt 1.0) (cbrt 1.0)) (* (cbrt 1.0) (* (cbrt 1.0) (cbrt 1.0)))) x) (* y 0.5))
  (- (* (fma (- (sqrt 1.0)) (sqrt 1.0) (* (sqrt 1.0) (sqrt 1.0))) x) (* y 0.5))
  (- (* (fma (- 1.0) 1 (* 1.0 1)) x) (* y 0.5))
  (- (* (fma (- (cbrt 1.0)) (* (cbrt 1.0) (cbrt 1.0)) (* (cbrt 1.0) (* (cbrt 1.0) (cbrt 1.0)))) x) (* y 0.5))
  (- (* (fma (- (sqrt 1.0)) (sqrt 1.0) (* (sqrt 1.0) (sqrt 1.0))) x) (* y 0.5))
  (- (* (fma (- 1.0) 1 (* 1.0 1)) x) (* y 0.5))
  (- (* (fma (- (cbrt 1.0)) (* (cbrt 1.0) (cbrt 1.0)) (* (cbrt 1.0) (* (cbrt 1.0) (cbrt 1.0)))) x) (* y 0.5))
  (- (* (fma (- (sqrt 1.0)) (sqrt 1.0) (* (sqrt 1.0) (sqrt 1.0))) x) (* y 0.5))
  (- (* (fma (- 1.0) 1 (* 1.0 1)) x) (* y 0.5))
  (- (* (- 1.0) x) (* y 0.5))
  (- (* (- 1.0) x) (* y 0.5))
  (- (* y 0.5))
  (- (* x y) (+ (* 1.0 x) (* 0.5 y)))
  (- (* x y) (+ (* 1.0 x) (* 0.5 y)))
  (- (* x y) (+ (* 1.0 x) (* 0.5 y)))
0.126 * [simplify]: Sending expressions to egg_math:
 (fma h0 (- h1 h2) (- (* h3 h1)))
 (fma (- h3) h1 (* h3 h1))
 (expm1 (- (* h0 (- h1 h2)) (* h1 h3)))
 (log1p (- (* h0 (- h1 h2)) (* h1 h3)))
 (- (* h1 h3))
 (/ (exp (* h0 (- h1 h2))) (exp (* h1 h3)))
 (log (- (* h0 (- h1 h2)) (* h1 h3)))
 (exp (- (* h0 (- h1 h2)) (* h1 h3)))
 (* (cbrt (- (* h0 (- h1 h2)) (* h1 h3))) (cbrt (- (* h0 (- h1 h2)) (* h1 h3))))
 (cbrt (- (* h0 (- h1 h2)) (* h1 h3)))
 (* (* (- (* h0 (- h1 h2)) (* h1 h3)) (- (* h0 (- h1 h2)) (* h1 h3))) (- (* h0 (- h1 h2)) (* h1 h3)))
 (sqrt (- (* h0 (- h1 h2)) (* h1 h3)))
 (sqrt (- (* h0 (- h1 h2)) (* h1 h3)))
 (- (pow (* h0 (- h1 h2)) 3) (pow (* h1 h3) 3))
 (+ (* (* h0 (- h1 h2)) (* h0 (- h1 h2))) (+ (* (* h1 h3) (* h1 h3)) (* (* h0 (- h1 h2)) (* h1 h3))))
 (- (* h1 h3))
 (- (* (* h0 (- h1 h2)) (* h0 (- h1 h2))) (* (* h1 h3) (* h1 h3)))
 (+ (* h0 (- h1 h2)) (* h1 h3))
 (- (* h0 (fma (- (cbrt h2)) (* (cbrt h2) (cbrt h2)) (* (cbrt h2) (* (cbrt h2) (cbrt h2))))) (* h1 h3))
 (- (* h0 (fma (- (sqrt h2)) (sqrt h2) (* (sqrt h2) (sqrt h2)))) (* h1 h3))
 (- (* h0 (fma (- h2) 1 (* h2 1))) (* h1 h3))
 (- (* h0 (fma (- (cbrt h2)) (* (cbrt h2) (cbrt h2)) (* (cbrt h2) (* (cbrt h2) (cbrt h2))))) (* h1 h3))
 (- (* h0 (fma (- (sqrt h2)) (sqrt h2) (* (sqrt h2) (sqrt h2)))) (* h1 h3))
 (- (* h0 (fma (- h2) 1 (* h2 1))) (* h1 h3))
 (- (* h0 (fma (- (cbrt h2)) (* (cbrt h2) (cbrt h2)) (* (cbrt h2) (* (cbrt h2) (cbrt h2))))) (* h1 h3))
 (- (* h0 (fma (- (sqrt h2)) (sqrt h2) (* (sqrt h2) (sqrt h2)))) (* h1 h3))
 (- (* h0 (fma (- h2) 1 (* h2 1))) (* h1 h3))
 (- (* h0 (- h2)) (* h1 h3))
 (- (* h0 (- h2)) (* h1 h3))
 (- (* (fma (- (cbrt h2)) (* (cbrt h2) (cbrt h2)) (* (cbrt h2) (* (cbrt h2) (cbrt h2)))) h0) (* h1 h3))
 (- (* (fma (- (sqrt h2)) (sqrt h2) (* (sqrt h2) (sqrt h2))) h0) (* h1 h3))
 (- (* (fma (- h2) 1 (* h2 1)) h0) (* h1 h3))
 (- (* (fma (- (cbrt h2)) (* (cbrt h2) (cbrt h2)) (* (cbrt h2) (* (cbrt h2) (cbrt h2)))) h0) (* h1 h3))
 (- (* (fma (- (sqrt h2)) (sqrt h2) (* (sqrt h2) (sqrt h2))) h0) (* h1 h3))
 (- (* (fma (- h2) 1 (* h2 1)) h0) (* h1 h3))
 (- (* (fma (- (cbrt h2)) (* (cbrt h2) (cbrt h2)) (* (cbrt h2) (* (cbrt h2) (cbrt h2)))) h0) (* h1 h3))
 (- (* (fma (- (sqrt h2)) (sqrt h2) (* (sqrt h2) (sqrt h2))) h0) (* h1 h3))
 (- (* (fma (- h2) 1 (* h2 1)) h0) (* h1 h3))
 (- (* (- h2) h0) (* h1 h3))
 (- (* (- h2) h0) (* h1 h3))
 (- (* h1 h3))
 (- (* h0 h1) (+ (* h2 h0) (* h3 h1)))
 (- (* h0 h1) (+ (* h2 h0) (* h3 h1)))
 (- (* h0 h1) (+ (* h2 h0) (* h3 h1)))
0.129 * * [simplify]: iteration  0 :  174  enodes  (cost  315 )
0.133 * * [simplify]: iteration  1 :  532  enodes  (cost  228 )
0.143 * * [simplify]: iteration  2 :  2124  enodes  (cost  210 )
0.185 * * [simplify]: iteration  3 :  5003  enodes  (cost  188 )
0.187 * [simplify]: Simplified to:
   (fma x y (- (fma 1.0 x (* 0.5 y))))
  0
  (expm1 (- (* x (- y 1.0)) (* y 0.5)))
  (log1p (- (* x (- y 1.0)) (* y 0.5)))
  (- (* y 0.5))
  (exp (- (* x (- y 1.0)) (* y 0.5)))
  (log (- (* x (- y 1.0)) (* y 0.5)))
  (exp (- (* x (- y 1.0)) (* y 0.5)))
  (* (cbrt (- (* x (- y 1.0)) (* y 0.5))) (cbrt (- (* x (- y 1.0)) (* y 0.5))))
  (cbrt (- (* x (- y 1.0)) (* y 0.5)))
  (pow (- (* x (- y 1.0)) (* y 0.5)) 3)
  (sqrt (- (* x (- y 1.0)) (* y 0.5)))
  (sqrt (- (* x (- y 1.0)) (* y 0.5)))
  (- (pow (* x (- y 1.0)) 3) (pow (* y 0.5) 3))
  (fma (* x (- y 1.0)) (fma x (- y 1.0) (* y 0.5)) (* (* y 0.5) (* y 0.5)))
  (- (* y 0.5))
  (* (fma x (- y 1.0) (* y 0.5)) (- (* x (- y 1.0)) (* y 0.5)))
  (fma x (- y 1.0) (* y 0.5))
  (fma (- 1.0 1.0) x (- (* y 0.5)))
  (fma (- 1.0 1.0) x (- (* y 0.5)))
  (fma (- 1.0 1.0) x (- (* y 0.5)))
  (fma (- 1.0 1.0) x (- (* y 0.5)))
  (fma (- 1.0 1.0) x (- (* y 0.5)))
  (fma (- 1.0 1.0) x (- (* y 0.5)))
  (fma (- 1.0 1.0) x (- (* y 0.5)))
  (fma (- 1.0 1.0) x (- (* y 0.5)))
  (fma (- 1.0 1.0) x (- (* y 0.5)))
  (- (fma 1.0 x (* 0.5 y)))
  (- (fma 1.0 x (* 0.5 y)))
  (fma (- 1.0 1.0) x (- (* y 0.5)))
  (fma (- 1.0 1.0) x (- (* y 0.5)))
  (fma (- 1.0 1.0) x (- (* y 0.5)))
  (fma (- 1.0 1.0) x (- (* y 0.5)))
  (fma (- 1.0 1.0) x (- (* y 0.5)))
  (fma (- 1.0 1.0) x (- (* y 0.5)))
  (fma (- 1.0 1.0) x (- (* y 0.5)))
  (fma (- 1.0 1.0) x (- (* y 0.5)))
  (fma (- 1.0 1.0) x (- (* y 0.5)))
  (- (fma 1.0 x (* 0.5 y)))
  (- (fma 1.0 x (* 0.5 y)))
  (- (* y 0.5))
  (fma x y (- (fma 1.0 x (* 0.5 y))))
  (fma x y (- (fma 1.0 x (* 0.5 y))))
  (fma x y (- (fma 1.0 x (* 0.5 y))))
0.187 * * * [progress]: adding candidates to table
0.291 * * [progress]: iteration 2 / 4
0.292 * * * [progress]: picking best candidate
0.294 * * * * [pick]: Picked  #<alt (λ (x y) (+ (+ (fma x y (- (fma 1.0 x (* 0.5 y)))) 0) 0.918938533204673))>
0.294 * * * [progress]: localizing error
0.304 * * * [progress]: generating rewritten candidates
0.304 * * * [progress]: generating series expansions
0.304 * * * [progress]: simplifying candidates
0.304 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   
0.304 * [simplify]: Sending expressions to egg_math:
 
0.306 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
0.306 * [simplify]: Simplified to:
   
0.306 * * * [progress]: adding candidates to table
0.306 * [progress]: [Phase 3 of 3] Extracting.
0.308 * [simplify]: Simplifying using  #<procedure:simplify-batch-egg> :
   (+ (+ (fma x y (- (fma 1.0 x (* 0.5 y)))) 0) 0.918938533204673)
0.308 * [simplify]: Sending expressions to egg_math:
 (+ (+ (fma h0 h1 (- (fma h2 h0 (* h3 h1)))) 0) h4)
0.309 * * [simplify]: iteration  0 :  15  enodes  (cost  5 )
0.309 * * [simplify]: iteration  1 :  17  enodes  (cost  5 )
0.309 * * [simplify]: iteration  2 :  17  enodes  (cost  5 )
0.309 * [simplify]: Simplified to:
   (+ 0.918938533204673 (fma x y (- (fma 1.0 x (* 0.5 y)))))
0.813 * [regime-testing]: End program error score: 0.0011251406425803225