15.001 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.056 * * * [progress]: [2/2] Setting up program.
0.058 * [progress]: [Phase 2 of 3] Improving.
0.058 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (log (+ 1.0 (exp x))) (* x y))
0.059 * * [simplify]: iteration  0 :  8  enodes  (cost  9 )
0.060 * * [simplify]: iteration  1 :  12  enodes  (cost  9 )
0.061 * * [simplify]: iteration  2 :  19  enodes  (cost  9 )
0.064 * * [simplify]: iteration  done :  19  enodes  (cost  9 )
0.064 * [simplify]: Simplified to:
   (- (log (+ 1.0 (exp x))) (* x y))
0.064 * * [progress]: iteration 1 / 4
0.064 * * * [progress]: picking best candidate
0.066 * * * * [pick]: Picked  #<alt (λ (x y) (- (log (+ 1.0 (exp x))) (* x y)))>
0.066 * * * [progress]: localizing error
0.074 * * * [progress]: generating rewritten candidates
0.074 * * * * [progress]: [ 1 / 3 ] rewriting at (2 1)
0.077 * * * * [progress]: [ 2 / 3 ] rewriting at (2)
0.082 * * * * [progress]: [ 3 / 3 ] rewriting at (2 1 1)
0.086 * * * [progress]: generating series expansions
0.086 * * * * [progress]: [ 1 / 3 ] generating series at (2 1)
0.086 * [approximate]: Taking taylor expansion of (log (+ (exp x) 1.0)) in (x) around 0
0.086 * [taylor]: Taking taylor expansion of (log (+ (exp x) 1.0)) in x
0.086 * [taylor]: Taking taylor expansion of (+ (exp x) 1.0) in x
0.086 * [taylor]: Taking taylor expansion of (exp x) in x
0.086 * [taylor]: Taking taylor expansion of x in x
0.086 * [taylor]: Taking taylor expansion of 1.0 in x
0.087 * [taylor]: Taking taylor expansion of (log (+ (exp x) 1.0)) in x
0.087 * [taylor]: Taking taylor expansion of (+ (exp x) 1.0) in x
0.087 * [taylor]: Taking taylor expansion of (exp x) in x
0.087 * [taylor]: Taking taylor expansion of x in x
0.087 * [taylor]: Taking taylor expansion of 1.0 in x
0.104 * [approximate]: Taking taylor expansion of (log (+ (exp (/ 1 x)) 1.0)) in (x) around 0
0.104 * [taylor]: Taking taylor expansion of (log (+ (exp (/ 1 x)) 1.0)) in x
0.104 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) 1.0) in x
0.104 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.104 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.104 * [taylor]: Taking taylor expansion of x in x
0.104 * [taylor]: Taking taylor expansion of 1.0 in x
0.104 * [taylor]: Taking taylor expansion of (log (+ (exp (/ 1 x)) 1.0)) in x
0.104 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) 1.0) in x
0.104 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.104 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.104 * [taylor]: Taking taylor expansion of x in x
0.105 * [taylor]: Taking taylor expansion of 1.0 in x
0.130 * [approximate]: Taking taylor expansion of (log (+ (exp (/ -1 x)) 1.0)) in (x) around 0
0.130 * [taylor]: Taking taylor expansion of (log (+ (exp (/ -1 x)) 1.0)) in x
0.130 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) 1.0) in x
0.130 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.130 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.130 * [taylor]: Taking taylor expansion of -1 in x
0.130 * [taylor]: Taking taylor expansion of x in x
0.131 * [taylor]: Taking taylor expansion of 1.0 in x
0.131 * [taylor]: Taking taylor expansion of (log (+ (exp (/ -1 x)) 1.0)) in x
0.131 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) 1.0) in x
0.131 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.131 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.131 * [taylor]: Taking taylor expansion of -1 in x
0.131 * [taylor]: Taking taylor expansion of x in x
0.131 * [taylor]: Taking taylor expansion of 1.0 in x
0.152 * * * * [progress]: [ 2 / 3 ] generating series at (2)
0.152 * [approximate]: Taking taylor expansion of (- (log (+ (exp x) 1.0)) (* x y)) in (x y) around 0
0.152 * [taylor]: Taking taylor expansion of (- (log (+ (exp x) 1.0)) (* x y)) in y
0.152 * [taylor]: Taking taylor expansion of (log (+ (exp x) 1.0)) in y
0.152 * [taylor]: Taking taylor expansion of (+ (exp x) 1.0) in y
0.152 * [taylor]: Taking taylor expansion of (exp x) in y
0.152 * [taylor]: Taking taylor expansion of x in y
0.152 * [taylor]: Taking taylor expansion of 1.0 in y
0.152 * [taylor]: Taking taylor expansion of (* x y) in y
0.152 * [taylor]: Taking taylor expansion of x in y
0.152 * [taylor]: Taking taylor expansion of y in y
0.152 * [taylor]: Taking taylor expansion of (- (log (+ (exp x) 1.0)) (* x y)) in x
0.152 * [taylor]: Taking taylor expansion of (log (+ (exp x) 1.0)) in x
0.152 * [taylor]: Taking taylor expansion of (+ (exp x) 1.0) in x
0.152 * [taylor]: Taking taylor expansion of (exp x) in x
0.152 * [taylor]: Taking taylor expansion of x in x
0.152 * [taylor]: Taking taylor expansion of 1.0 in x
0.153 * [taylor]: Taking taylor expansion of (* x y) in x
0.153 * [taylor]: Taking taylor expansion of x in x
0.153 * [taylor]: Taking taylor expansion of y in x
0.153 * [taylor]: Taking taylor expansion of (- (log (+ (exp x) 1.0)) (* x y)) in x
0.153 * [taylor]: Taking taylor expansion of (log (+ (exp x) 1.0)) in x
0.153 * [taylor]: Taking taylor expansion of (+ (exp x) 1.0) in x
0.153 * [taylor]: Taking taylor expansion of (exp x) in x
0.153 * [taylor]: Taking taylor expansion of x in x
0.153 * [taylor]: Taking taylor expansion of 1.0 in x
0.154 * [taylor]: Taking taylor expansion of (* x y) in x
0.154 * [taylor]: Taking taylor expansion of x in x
0.154 * [taylor]: Taking taylor expansion of y in x
0.154 * [taylor]: Taking taylor expansion of (log 2.0) in y
0.155 * [taylor]: Taking taylor expansion of 2.0 in y
0.159 * [taylor]: Taking taylor expansion of (- 0.5 y) in y
0.159 * [taylor]: Taking taylor expansion of 0.5 in y
0.159 * [taylor]: Taking taylor expansion of y in y
0.172 * [taylor]: Taking taylor expansion of (- 0.25 (* 1/2 (/ 1 (pow 2.0 2)))) in y
0.172 * [taylor]: Taking taylor expansion of 0.25 in y
0.172 * [taylor]: Taking taylor expansion of (* 1/2 (/ 1 (pow 2.0 2))) in y
0.172 * [taylor]: Taking taylor expansion of 1/2 in y
0.172 * [taylor]: Taking taylor expansion of (/ 1 (pow 2.0 2)) in y
0.172 * [taylor]: Taking taylor expansion of (pow 2.0 2) in y
0.172 * [taylor]: Taking taylor expansion of 2.0 in y
0.174 * [approximate]: Taking taylor expansion of (- (log (+ (exp (/ 1 x)) 1.0)) (/ 1 (* x y))) in (x y) around 0
0.174 * [taylor]: Taking taylor expansion of (- (log (+ (exp (/ 1 x)) 1.0)) (/ 1 (* x y))) in y
0.174 * [taylor]: Taking taylor expansion of (log (+ (exp (/ 1 x)) 1.0)) in y
0.174 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) 1.0) in y
0.174 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in y
0.174 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.174 * [taylor]: Taking taylor expansion of x in y
0.174 * [taylor]: Taking taylor expansion of 1.0 in y
0.175 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.175 * [taylor]: Taking taylor expansion of (* x y) in y
0.175 * [taylor]: Taking taylor expansion of x in y
0.175 * [taylor]: Taking taylor expansion of y in y
0.175 * [taylor]: Taking taylor expansion of (- (log (+ (exp (/ 1 x)) 1.0)) (/ 1 (* x y))) in x
0.175 * [taylor]: Taking taylor expansion of (log (+ (exp (/ 1 x)) 1.0)) in x
0.175 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) 1.0) in x
0.175 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.175 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.175 * [taylor]: Taking taylor expansion of x in x
0.175 * [taylor]: Taking taylor expansion of 1.0 in x
0.175 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.175 * [taylor]: Taking taylor expansion of (* x y) in x
0.175 * [taylor]: Taking taylor expansion of x in x
0.175 * [taylor]: Taking taylor expansion of y in x
0.176 * [taylor]: Taking taylor expansion of (- (log (+ (exp (/ 1 x)) 1.0)) (/ 1 (* x y))) in x
0.176 * [taylor]: Taking taylor expansion of (log (+ (exp (/ 1 x)) 1.0)) in x
0.176 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) 1.0) in x
0.176 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.176 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.176 * [taylor]: Taking taylor expansion of x in x
0.176 * [taylor]: Taking taylor expansion of 1.0 in x
0.176 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.176 * [taylor]: Taking taylor expansion of (* x y) in x
0.176 * [taylor]: Taking taylor expansion of x in x
0.176 * [taylor]: Taking taylor expansion of y in x
0.177 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.177 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.177 * [taylor]: Taking taylor expansion of y in y
0.178 * [taylor]: Taking taylor expansion of (log (+ (exp (/ 1 x)) 1.0)) in y
0.178 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) 1.0) in y
0.178 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in y
0.178 * [taylor]: Taking taylor expansion of (/ 1 x) in y
0.178 * [taylor]: Taking taylor expansion of x in y
0.178 * [taylor]: Taking taylor expansion of 1.0 in y
0.181 * [taylor]: Taking taylor expansion of 0 in y
0.185 * [taylor]: Taking taylor expansion of 0 in y
0.191 * [taylor]: Taking taylor expansion of 0 in y
0.191 * [approximate]: Taking taylor expansion of (- (log (+ (exp (/ -1 x)) 1.0)) (/ 1 (* x y))) in (x y) around 0
0.191 * [taylor]: Taking taylor expansion of (- (log (+ (exp (/ -1 x)) 1.0)) (/ 1 (* x y))) in y
0.191 * [taylor]: Taking taylor expansion of (log (+ (exp (/ -1 x)) 1.0)) in y
0.191 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) 1.0) in y
0.191 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in y
0.191 * [taylor]: Taking taylor expansion of (/ -1 x) in y
0.191 * [taylor]: Taking taylor expansion of -1 in y
0.191 * [taylor]: Taking taylor expansion of x in y
0.191 * [taylor]: Taking taylor expansion of 1.0 in y
0.192 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.192 * [taylor]: Taking taylor expansion of (* x y) in y
0.192 * [taylor]: Taking taylor expansion of x in y
0.192 * [taylor]: Taking taylor expansion of y in y
0.192 * [taylor]: Taking taylor expansion of (- (log (+ (exp (/ -1 x)) 1.0)) (/ 1 (* x y))) in x
0.192 * [taylor]: Taking taylor expansion of (log (+ (exp (/ -1 x)) 1.0)) in x
0.192 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) 1.0) in x
0.192 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.192 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.192 * [taylor]: Taking taylor expansion of -1 in x
0.192 * [taylor]: Taking taylor expansion of x in x
0.192 * [taylor]: Taking taylor expansion of 1.0 in x
0.192 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.193 * [taylor]: Taking taylor expansion of (* x y) in x
0.193 * [taylor]: Taking taylor expansion of x in x
0.193 * [taylor]: Taking taylor expansion of y in x
0.193 * [taylor]: Taking taylor expansion of (- (log (+ (exp (/ -1 x)) 1.0)) (/ 1 (* x y))) in x
0.193 * [taylor]: Taking taylor expansion of (log (+ (exp (/ -1 x)) 1.0)) in x
0.193 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) 1.0) in x
0.193 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.193 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.193 * [taylor]: Taking taylor expansion of -1 in x
0.193 * [taylor]: Taking taylor expansion of x in x
0.193 * [taylor]: Taking taylor expansion of 1.0 in x
0.193 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.193 * [taylor]: Taking taylor expansion of (* x y) in x
0.193 * [taylor]: Taking taylor expansion of x in x
0.193 * [taylor]: Taking taylor expansion of y in x
0.194 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
0.194 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.194 * [taylor]: Taking taylor expansion of y in y
0.195 * [taylor]: Taking taylor expansion of (log (+ (exp (/ -1 x)) 1.0)) in y
0.195 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) 1.0) in y
0.195 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in y
0.195 * [taylor]: Taking taylor expansion of (/ -1 x) in y
0.195 * [taylor]: Taking taylor expansion of -1 in y
0.195 * [taylor]: Taking taylor expansion of x in y
0.195 * [taylor]: Taking taylor expansion of 1.0 in y
0.198 * [taylor]: Taking taylor expansion of 0 in y
0.205 * [taylor]: Taking taylor expansion of 0 in y
0.211 * [taylor]: Taking taylor expansion of 0 in y
0.211 * * * * [progress]: [ 3 / 3 ] generating series at (2 1 1)
0.211 * [approximate]: Taking taylor expansion of (+ (exp x) 1.0) in (x) around 0
0.211 * [taylor]: Taking taylor expansion of (+ (exp x) 1.0) in x
0.211 * [taylor]: Taking taylor expansion of (exp x) in x
0.211 * [taylor]: Taking taylor expansion of x in x
0.211 * [taylor]: Taking taylor expansion of 1.0 in x
0.211 * [taylor]: Taking taylor expansion of (+ (exp x) 1.0) in x
0.211 * [taylor]: Taking taylor expansion of (exp x) in x
0.211 * [taylor]: Taking taylor expansion of x in x
0.211 * [taylor]: Taking taylor expansion of 1.0 in x
0.214 * [approximate]: Taking taylor expansion of (+ (exp (/ 1 x)) 1.0) in (x) around 0
0.214 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) 1.0) in x
0.214 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.214 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.214 * [taylor]: Taking taylor expansion of x in x
0.214 * [taylor]: Taking taylor expansion of 1.0 in x
0.214 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) 1.0) in x
0.214 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
0.214 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.214 * [taylor]: Taking taylor expansion of x in x
0.214 * [taylor]: Taking taylor expansion of 1.0 in x
0.216 * [approximate]: Taking taylor expansion of (+ (exp (/ -1 x)) 1.0) in (x) around 0
0.216 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) 1.0) in x
0.216 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.216 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.216 * [taylor]: Taking taylor expansion of -1 in x
0.216 * [taylor]: Taking taylor expansion of x in x
0.217 * [taylor]: Taking taylor expansion of 1.0 in x
0.217 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) 1.0) in x
0.217 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
0.217 * [taylor]: Taking taylor expansion of (/ -1 x) in x
0.217 * [taylor]: Taking taylor expansion of -1 in x
0.217 * [taylor]: Taking taylor expansion of x in x
0.217 * [taylor]: Taking taylor expansion of 1.0 in x
0.219 * * * [progress]: simplifying candidates
0.219 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (log (* (cbrt (+ 1.0 (exp x))) (cbrt (+ 1.0 (exp x)))))
  (log (cbrt (+ 1.0 (exp x))))
  (log (sqrt (+ 1.0 (exp x))))
  (log (sqrt (+ 1.0 (exp x))))
  (log 1)
  (log (+ 1.0 (exp x)))
  (log 1)
  (log (+ 1.0 (exp x)))
  (log (+ (pow 1.0 3) (pow (exp x) 3)))
  (log (+ (* 1.0 1.0) (- (* (exp x) (exp x)) (* 1.0 (exp x)))))
  (log (- (* 1.0 1.0) (* (exp x) (exp x))))
  (log (- 1.0 (exp x)))
  (log (+ 1.0 (exp x)))
  (log (log (+ 1.0 (exp x))))
  (exp (log (+ 1.0 (exp x))))
  (* (cbrt (log (+ 1.0 (exp x)))) (cbrt (log (+ 1.0 (exp x)))))
  (cbrt (log (+ 1.0 (exp x))))
  (* (* (log (+ 1.0 (exp x))) (log (+ 1.0 (exp x)))) (log (+ 1.0 (exp x))))
  (sqrt (log (+ 1.0 (exp x))))
  (sqrt (log (+ 1.0 (exp x))))
  (/ (+ 1.0 (exp x)) (exp (* x y)))
  (log (- (log (+ 1.0 (exp x))) (* x y)))
  (exp (- (log (+ 1.0 (exp x))) (* x y)))
  (* (cbrt (- (log (+ 1.0 (exp x))) (* x y))) (cbrt (- (log (+ 1.0 (exp x))) (* x y))))
  (cbrt (- (log (+ 1.0 (exp x))) (* x y)))
  (* (* (- (log (+ 1.0 (exp x))) (* x y)) (- (log (+ 1.0 (exp x))) (* x y))) (- (log (+ 1.0 (exp x))) (* x y)))
  (sqrt (- (log (+ 1.0 (exp x))) (* x y)))
  (sqrt (- (log (+ 1.0 (exp x))) (* x y)))
  (- (pow (log (+ 1.0 (exp x))) 3) (pow (* x y) 3))
  (+ (* (log (+ 1.0 (exp x))) (log (+ 1.0 (exp x)))) (+ (* (* x y) (* x y)) (* (log (+ 1.0 (exp x))) (* x y))))
  (- (* x y))
  (- (* (log (+ 1.0 (exp x))) (log (+ 1.0 (exp x)))) (* (* x y) (* x y)))
  (+ (log (+ 1.0 (exp x))) (* x y))
  (- (log (cbrt (+ 1.0 (exp x)))) (* x y))
  (- (log (sqrt (+ 1.0 (exp x)))) (* x y))
  (- (log (+ 1.0 (exp x))) (* x y))
  (- (log (+ 1.0 (exp x))) (* x y))
  (+ (log (+ (* 1.0 1.0) (- (* (exp x) (exp x)) (* 1.0 (exp x))))) (* x y))
  (+ (log (- 1.0 (exp x))) (* x y))
  (- (* x y))
  (* (exp 1.0) (exp (exp x)))
  (log (+ 1.0 (exp x)))
  (exp (+ 1.0 (exp x)))
  (* (cbrt (+ 1.0 (exp x))) (cbrt (+ 1.0 (exp x))))
  (cbrt (+ 1.0 (exp x)))
  (* (* (+ 1.0 (exp x)) (+ 1.0 (exp x))) (+ 1.0 (exp x)))
  (sqrt (+ 1.0 (exp x)))
  (sqrt (+ 1.0 (exp x)))
  (+ (pow 1.0 3) (pow (exp x) 3))
  (+ (* 1.0 1.0) (- (* (exp x) (exp x)) (* 1.0 (exp x))))
  (- (* 1.0 1.0) (* (exp x) (exp x)))
  (- 1.0 (exp x))
  (+ 1.0 (exp x))
  (- (+ (log 2.0) (+ (* 0.25 (pow x 2)) (* 0.5 x))) (* 1/2 (/ (pow x 2) (pow 2.0 2))))
  (log (+ (exp x) 1.0))
  (log (+ (exp x) 1.0))
  (+ (log 2.0) (+ (* 0.125 (pow x 2)) (* 0.5 x)))
  (- (log (+ (exp x) 1.0)) (* x y))
  (- (log (+ (exp x) 1.0)) (* x y))
  (+ (* 1/2 (pow x 2)) (+ x 2.0))
  (+ (exp x) 1.0)
  (+ (exp x) 1.0)
0.222 * * [simplify]: iteration  0 :  92  enodes  (cost  575 )
0.236 * * [simplify]: iteration  1 :  206  enodes  (cost  544 )
0.272 * * [simplify]: iteration  2 :  501  enodes  (cost  540 )
0.394 * * [simplify]: iteration  3 :  1378  enodes  (cost  508 )
1.495 * * [simplify]: iteration  4 :  4255  enodes  (cost  506 )
2.260 * * [simplify]: iteration  done :  5001  enodes  (cost  506 )
2.261 * [simplify]: Simplified to:
   (* 2 (log (cbrt (+ 1.0 (exp x)))))
  (log (cbrt (+ 1.0 (exp x))))
  (log (sqrt (+ 1.0 (exp x))))
  (log (sqrt (+ 1.0 (exp x))))
  0
  (log (+ 1.0 (exp x)))
  0
  (log (+ 1.0 (exp x)))
  (log (+ (pow 1.0 3) (pow (exp x) 3)))
  (log (+ (* (exp x) (- (exp x) 1.0)) (* 1.0 1.0)))
  (log (- (* 1.0 1.0) (exp (+ x x))))
  (log (- 1.0 (exp x)))
  (log (+ 1.0 (exp x)))
  (log (log (+ 1.0 (exp x))))
  (+ (exp x) 1.0)
  (* (cbrt (log (+ 1.0 (exp x)))) (cbrt (log (+ 1.0 (exp x)))))
  (cbrt (log (+ 1.0 (exp x))))
  (pow (log (+ (exp x) 1.0)) 3)
  (sqrt (log (+ 1.0 (exp x))))
  (sqrt (log (+ 1.0 (exp x))))
  (/ (+ 1.0 (exp x)) (exp (* x y)))
  (log (- (log (+ 1.0 (exp x))) (* x y)))
  (/ (+ 1.0 (exp x)) (exp (* x y)))
  (* (cbrt (- (log (+ 1.0 (exp x))) (* x y))) (cbrt (- (log (+ 1.0 (exp x))) (* x y))))
  (cbrt (- (log (+ 1.0 (exp x))) (* x y)))
  (pow (- (log (+ 1.0 (exp x))) (* x y)) 3)
  (sqrt (- (log (+ 1.0 (exp x))) (* x y)))
  (sqrt (- (log (+ 1.0 (exp x))) (* x y)))
  (- (pow (log (+ 1.0 (exp x))) 3) (pow (* x y) 3))
  (+ (* (* x y) (* x y)) (* (+ (log (+ 1.0 (exp x))) (* x y)) (log (+ 1.0 (exp x)))))
  (- (* x y))
  (- (* (log (+ 1.0 (exp x))) (log (+ 1.0 (exp x)))) (* (* x y) (* x y)))
  (+ (log (+ 1.0 (exp x))) (* x y))
  (- (log (cbrt (+ 1.0 (exp x)))) (* x y))
  (- (log (sqrt (+ 1.0 (exp x)))) (* x y))
  (- (log (+ 1.0 (exp x))) (* x y))
  (- (log (+ 1.0 (exp x))) (* x y))
  (+ (log (+ (* (exp x) (- (exp x) 1.0)) (* 1.0 1.0))) (* x y))
  (+ (log (- 1.0 (exp x))) (* x y))
  (- (* x y))
  (exp (+ 1.0 (exp x)))
  (log (+ 1.0 (exp x)))
  (exp (+ 1.0 (exp x)))
  (* (cbrt (+ 1.0 (exp x))) (cbrt (+ 1.0 (exp x))))
  (cbrt (+ 1.0 (exp x)))
  (pow (+ (exp x) 1.0) 3)
  (sqrt (+ 1.0 (exp x)))
  (sqrt (+ 1.0 (exp x)))
  (+ (pow 1.0 3) (pow (exp x) 3))
  (+ (* (exp x) (- (exp x) 1.0)) (* 1.0 1.0))
  (- (* 1.0 1.0) (exp (+ x x)))
  (- 1.0 (exp x))
  (+ (exp x) 1.0)
  (+ (+ (* (pow x 2) (- 0.25 (/ 1/2 (pow 2.0 2)))) (log 2.0)) (* 0.5 x))
  (log (+ 1.0 (exp x)))
  (log (+ 1.0 (exp x)))
  (+ (log 2.0) (* x (+ (* x 0.125) 0.5)))
  (- (log (+ 1.0 (exp x))) (* x y))
  (- (log (+ 1.0 (exp x))) (* x y))
  (+ (* 1/2 (pow x 2)) (+ x 2.0))
  (+ (exp x) 1.0)
  (+ (exp x) 1.0)
2.261 * * * [progress]: adding candidates to table
2.382 * * [progress]: iteration 2 / 4
2.382 * * * [progress]: picking best candidate
2.385 * * * * [pick]: Picked  #<alt (λ (x y) (- (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (* x y)))>
2.385 * * * [progress]: localizing error
2.396 * * * [progress]: generating rewritten candidates
2.396 * * * * [progress]: [ 1 / 4 ] rewriting at (2 1 2)
2.400 * * * * [progress]: [ 2 / 4 ] rewriting at (2 1 1)
2.404 * * * * [progress]: [ 3 / 4 ] rewriting at (2)
2.458 * * * * [progress]: [ 4 / 4 ] rewriting at (2 1 2 1 1)
2.462 * * * [progress]: generating series expansions
2.462 * * * * [progress]: [ 1 / 4 ] generating series at (2 1 2)
2.462 * [approximate]: Taking taylor expansion of (log (sqrt (+ (exp x) 1.0))) in (x) around 0
2.462 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp x) 1.0))) in x
2.462 * [taylor]: Taking taylor expansion of (sqrt (+ (exp x) 1.0)) in x
2.462 * [taylor]: Taking taylor expansion of (+ (exp x) 1.0) in x
2.462 * [taylor]: Taking taylor expansion of (exp x) in x
2.462 * [taylor]: Taking taylor expansion of x in x
2.462 * [taylor]: Taking taylor expansion of 1.0 in x
2.466 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp x) 1.0))) in x
2.466 * [taylor]: Taking taylor expansion of (sqrt (+ (exp x) 1.0)) in x
2.466 * [taylor]: Taking taylor expansion of (+ (exp x) 1.0) in x
2.466 * [taylor]: Taking taylor expansion of (exp x) in x
2.466 * [taylor]: Taking taylor expansion of x in x
2.466 * [taylor]: Taking taylor expansion of 1.0 in x
2.517 * [approximate]: Taking taylor expansion of (log (sqrt (+ (exp (/ 1 x)) 1.0))) in (x) around 0
2.517 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp (/ 1 x)) 1.0))) in x
2.517 * [taylor]: Taking taylor expansion of (sqrt (+ (exp (/ 1 x)) 1.0)) in x
2.517 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) 1.0) in x
2.517 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
2.517 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.517 * [taylor]: Taking taylor expansion of x in x
2.517 * [taylor]: Taking taylor expansion of 1.0 in x
2.518 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp (/ 1 x)) 1.0))) in x
2.518 * [taylor]: Taking taylor expansion of (sqrt (+ (exp (/ 1 x)) 1.0)) in x
2.518 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) 1.0) in x
2.518 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
2.518 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.518 * [taylor]: Taking taylor expansion of x in x
2.518 * [taylor]: Taking taylor expansion of 1.0 in x
2.542 * [approximate]: Taking taylor expansion of (log (sqrt (+ (exp (/ -1 x)) 1.0))) in (x) around 0
2.542 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp (/ -1 x)) 1.0))) in x
2.542 * [taylor]: Taking taylor expansion of (sqrt (+ (exp (/ -1 x)) 1.0)) in x
2.542 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) 1.0) in x
2.542 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
2.542 * [taylor]: Taking taylor expansion of (/ -1 x) in x
2.542 * [taylor]: Taking taylor expansion of -1 in x
2.542 * [taylor]: Taking taylor expansion of x in x
2.543 * [taylor]: Taking taylor expansion of 1.0 in x
2.543 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp (/ -1 x)) 1.0))) in x
2.543 * [taylor]: Taking taylor expansion of (sqrt (+ (exp (/ -1 x)) 1.0)) in x
2.543 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) 1.0) in x
2.543 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
2.543 * [taylor]: Taking taylor expansion of (/ -1 x) in x
2.543 * [taylor]: Taking taylor expansion of -1 in x
2.543 * [taylor]: Taking taylor expansion of x in x
2.543 * [taylor]: Taking taylor expansion of 1.0 in x
2.567 * * * * [progress]: [ 2 / 4 ] generating series at (2 1 1)
2.567 * [approximate]: Taking taylor expansion of (log (sqrt (+ (exp x) 1.0))) in (x) around 0
2.567 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp x) 1.0))) in x
2.567 * [taylor]: Taking taylor expansion of (sqrt (+ (exp x) 1.0)) in x
2.567 * [taylor]: Taking taylor expansion of (+ (exp x) 1.0) in x
2.567 * [taylor]: Taking taylor expansion of (exp x) in x
2.567 * [taylor]: Taking taylor expansion of x in x
2.567 * [taylor]: Taking taylor expansion of 1.0 in x
2.570 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp x) 1.0))) in x
2.570 * [taylor]: Taking taylor expansion of (sqrt (+ (exp x) 1.0)) in x
2.570 * [taylor]: Taking taylor expansion of (+ (exp x) 1.0) in x
2.570 * [taylor]: Taking taylor expansion of (exp x) in x
2.570 * [taylor]: Taking taylor expansion of x in x
2.570 * [taylor]: Taking taylor expansion of 1.0 in x
2.620 * [approximate]: Taking taylor expansion of (log (sqrt (+ (exp (/ 1 x)) 1.0))) in (x) around 0
2.620 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp (/ 1 x)) 1.0))) in x
2.620 * [taylor]: Taking taylor expansion of (sqrt (+ (exp (/ 1 x)) 1.0)) in x
2.620 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) 1.0) in x
2.620 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
2.620 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.620 * [taylor]: Taking taylor expansion of x in x
2.620 * [taylor]: Taking taylor expansion of 1.0 in x
2.621 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp (/ 1 x)) 1.0))) in x
2.621 * [taylor]: Taking taylor expansion of (sqrt (+ (exp (/ 1 x)) 1.0)) in x
2.621 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) 1.0) in x
2.621 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
2.621 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.621 * [taylor]: Taking taylor expansion of x in x
2.621 * [taylor]: Taking taylor expansion of 1.0 in x
2.645 * [approximate]: Taking taylor expansion of (log (sqrt (+ (exp (/ -1 x)) 1.0))) in (x) around 0
2.645 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp (/ -1 x)) 1.0))) in x
2.645 * [taylor]: Taking taylor expansion of (sqrt (+ (exp (/ -1 x)) 1.0)) in x
2.645 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) 1.0) in x
2.645 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
2.645 * [taylor]: Taking taylor expansion of (/ -1 x) in x
2.645 * [taylor]: Taking taylor expansion of -1 in x
2.645 * [taylor]: Taking taylor expansion of x in x
2.645 * [taylor]: Taking taylor expansion of 1.0 in x
2.646 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp (/ -1 x)) 1.0))) in x
2.646 * [taylor]: Taking taylor expansion of (sqrt (+ (exp (/ -1 x)) 1.0)) in x
2.646 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) 1.0) in x
2.646 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
2.646 * [taylor]: Taking taylor expansion of (/ -1 x) in x
2.646 * [taylor]: Taking taylor expansion of -1 in x
2.646 * [taylor]: Taking taylor expansion of x in x
2.646 * [taylor]: Taking taylor expansion of 1.0 in x
2.672 * * * * [progress]: [ 3 / 4 ] generating series at (2)
2.673 * [approximate]: Taking taylor expansion of (- (* 2 (log (sqrt (+ (exp x) 1.0)))) (* x y)) in (x y) around 0
2.673 * [taylor]: Taking taylor expansion of (- (* 2 (log (sqrt (+ (exp x) 1.0)))) (* x y)) in y
2.673 * [taylor]: Taking taylor expansion of (* 2 (log (sqrt (+ (exp x) 1.0)))) in y
2.673 * [taylor]: Taking taylor expansion of 2 in y
2.673 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp x) 1.0))) in y
2.673 * [taylor]: Taking taylor expansion of (sqrt (+ (exp x) 1.0)) in y
2.673 * [taylor]: Taking taylor expansion of (+ (exp x) 1.0) in y
2.673 * [taylor]: Taking taylor expansion of (exp x) in y
2.673 * [taylor]: Taking taylor expansion of x in y
2.673 * [taylor]: Taking taylor expansion of 1.0 in y
2.674 * [taylor]: Taking taylor expansion of (* x y) in y
2.674 * [taylor]: Taking taylor expansion of x in y
2.674 * [taylor]: Taking taylor expansion of y in y
2.674 * [taylor]: Taking taylor expansion of (- (* 2 (log (sqrt (+ (exp x) 1.0)))) (* x y)) in x
2.674 * [taylor]: Taking taylor expansion of (* 2 (log (sqrt (+ (exp x) 1.0)))) in x
2.674 * [taylor]: Taking taylor expansion of 2 in x
2.674 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp x) 1.0))) in x
2.674 * [taylor]: Taking taylor expansion of (sqrt (+ (exp x) 1.0)) in x
2.674 * [taylor]: Taking taylor expansion of (+ (exp x) 1.0) in x
2.674 * [taylor]: Taking taylor expansion of (exp x) in x
2.674 * [taylor]: Taking taylor expansion of x in x
2.674 * [taylor]: Taking taylor expansion of 1.0 in x
2.677 * [taylor]: Taking taylor expansion of (* x y) in x
2.677 * [taylor]: Taking taylor expansion of x in x
2.677 * [taylor]: Taking taylor expansion of y in x
2.677 * [taylor]: Taking taylor expansion of (- (* 2 (log (sqrt (+ (exp x) 1.0)))) (* x y)) in x
2.677 * [taylor]: Taking taylor expansion of (* 2 (log (sqrt (+ (exp x) 1.0)))) in x
2.677 * [taylor]: Taking taylor expansion of 2 in x
2.677 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp x) 1.0))) in x
2.677 * [taylor]: Taking taylor expansion of (sqrt (+ (exp x) 1.0)) in x
2.677 * [taylor]: Taking taylor expansion of (+ (exp x) 1.0) in x
2.677 * [taylor]: Taking taylor expansion of (exp x) in x
2.677 * [taylor]: Taking taylor expansion of x in x
2.677 * [taylor]: Taking taylor expansion of 1.0 in x
2.680 * [taylor]: Taking taylor expansion of (* x y) in x
2.680 * [taylor]: Taking taylor expansion of x in x
2.680 * [taylor]: Taking taylor expansion of y in x
2.683 * [taylor]: Taking taylor expansion of (* 2 (log (sqrt 2.0))) in y
2.683 * [taylor]: Taking taylor expansion of 2 in y
2.683 * [taylor]: Taking taylor expansion of (log (sqrt 2.0)) in y
2.683 * [taylor]: Taking taylor expansion of (sqrt 2.0) in y
2.683 * [taylor]: Taking taylor expansion of 2.0 in y
2.695 * [taylor]: Taking taylor expansion of (- (/ 1 (pow (sqrt 2.0) 2)) y) in y
2.695 * [taylor]: Taking taylor expansion of (/ 1 (pow (sqrt 2.0) 2)) in y
2.695 * [taylor]: Taking taylor expansion of (pow (sqrt 2.0) 2) in y
2.695 * [taylor]: Taking taylor expansion of (sqrt 2.0) in y
2.696 * [taylor]: Taking taylor expansion of 2.0 in y
2.698 * [taylor]: Taking taylor expansion of y in y
2.740 * [taylor]: Taking taylor expansion of (- (* 1/2 (/ 1 (pow (sqrt 2.0) 2))) (* 1/2 (/ 1 (pow (sqrt 2.0) 4)))) in y
2.740 * [taylor]: Taking taylor expansion of (* 1/2 (/ 1 (pow (sqrt 2.0) 2))) in y
2.740 * [taylor]: Taking taylor expansion of 1/2 in y
2.740 * [taylor]: Taking taylor expansion of (/ 1 (pow (sqrt 2.0) 2)) in y
2.740 * [taylor]: Taking taylor expansion of (pow (sqrt 2.0) 2) in y
2.740 * [taylor]: Taking taylor expansion of (sqrt 2.0) in y
2.740 * [taylor]: Taking taylor expansion of 2.0 in y
2.743 * [taylor]: Taking taylor expansion of (* 1/2 (/ 1 (pow (sqrt 2.0) 4))) in y
2.743 * [taylor]: Taking taylor expansion of 1/2 in y
2.743 * [taylor]: Taking taylor expansion of (/ 1 (pow (sqrt 2.0) 4)) in y
2.743 * [taylor]: Taking taylor expansion of (pow (sqrt 2.0) 4) in y
2.743 * [taylor]: Taking taylor expansion of (sqrt 2.0) in y
2.743 * [taylor]: Taking taylor expansion of 2.0 in y
2.773 * [approximate]: Taking taylor expansion of (- (* 2 (log (sqrt (+ (exp (/ 1 x)) 1.0)))) (/ 1 (* x y))) in (x y) around 0
2.773 * [taylor]: Taking taylor expansion of (- (* 2 (log (sqrt (+ (exp (/ 1 x)) 1.0)))) (/ 1 (* x y))) in y
2.773 * [taylor]: Taking taylor expansion of (* 2 (log (sqrt (+ (exp (/ 1 x)) 1.0)))) in y
2.773 * [taylor]: Taking taylor expansion of 2 in y
2.773 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp (/ 1 x)) 1.0))) in y
2.773 * [taylor]: Taking taylor expansion of (sqrt (+ (exp (/ 1 x)) 1.0)) in y
2.773 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) 1.0) in y
2.773 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in y
2.773 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.773 * [taylor]: Taking taylor expansion of x in y
2.773 * [taylor]: Taking taylor expansion of 1.0 in y
2.774 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
2.774 * [taylor]: Taking taylor expansion of (* x y) in y
2.774 * [taylor]: Taking taylor expansion of x in y
2.774 * [taylor]: Taking taylor expansion of y in y
2.774 * [taylor]: Taking taylor expansion of (- (* 2 (log (sqrt (+ (exp (/ 1 x)) 1.0)))) (/ 1 (* x y))) in x
2.774 * [taylor]: Taking taylor expansion of (* 2 (log (sqrt (+ (exp (/ 1 x)) 1.0)))) in x
2.774 * [taylor]: Taking taylor expansion of 2 in x
2.774 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp (/ 1 x)) 1.0))) in x
2.774 * [taylor]: Taking taylor expansion of (sqrt (+ (exp (/ 1 x)) 1.0)) in x
2.774 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) 1.0) in x
2.774 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
2.774 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.774 * [taylor]: Taking taylor expansion of x in x
2.775 * [taylor]: Taking taylor expansion of 1.0 in x
2.775 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
2.775 * [taylor]: Taking taylor expansion of (* x y) in x
2.775 * [taylor]: Taking taylor expansion of x in x
2.775 * [taylor]: Taking taylor expansion of y in x
2.775 * [taylor]: Taking taylor expansion of (- (* 2 (log (sqrt (+ (exp (/ 1 x)) 1.0)))) (/ 1 (* x y))) in x
2.776 * [taylor]: Taking taylor expansion of (* 2 (log (sqrt (+ (exp (/ 1 x)) 1.0)))) in x
2.776 * [taylor]: Taking taylor expansion of 2 in x
2.776 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp (/ 1 x)) 1.0))) in x
2.776 * [taylor]: Taking taylor expansion of (sqrt (+ (exp (/ 1 x)) 1.0)) in x
2.776 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) 1.0) in x
2.776 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
2.776 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.776 * [taylor]: Taking taylor expansion of x in x
2.776 * [taylor]: Taking taylor expansion of 1.0 in x
2.776 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
2.776 * [taylor]: Taking taylor expansion of (* x y) in x
2.776 * [taylor]: Taking taylor expansion of x in x
2.776 * [taylor]: Taking taylor expansion of y in x
2.777 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
2.777 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.777 * [taylor]: Taking taylor expansion of y in y
2.778 * [taylor]: Taking taylor expansion of (* 2 (log (sqrt (+ (exp (/ 1 x)) 1.0)))) in y
2.778 * [taylor]: Taking taylor expansion of 2 in y
2.778 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp (/ 1 x)) 1.0))) in y
2.778 * [taylor]: Taking taylor expansion of (sqrt (+ (exp (/ 1 x)) 1.0)) in y
2.779 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) 1.0) in y
2.779 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in y
2.779 * [taylor]: Taking taylor expansion of (/ 1 x) in y
2.779 * [taylor]: Taking taylor expansion of x in y
2.779 * [taylor]: Taking taylor expansion of 1.0 in y
2.782 * [taylor]: Taking taylor expansion of 0 in y
2.787 * [taylor]: Taking taylor expansion of 0 in y
2.794 * [taylor]: Taking taylor expansion of 0 in y
2.794 * [approximate]: Taking taylor expansion of (- (* 2 (log (sqrt (+ (exp (/ -1 x)) 1.0)))) (/ 1 (* x y))) in (x y) around 0
2.794 * [taylor]: Taking taylor expansion of (- (* 2 (log (sqrt (+ (exp (/ -1 x)) 1.0)))) (/ 1 (* x y))) in y
2.794 * [taylor]: Taking taylor expansion of (* 2 (log (sqrt (+ (exp (/ -1 x)) 1.0)))) in y
2.795 * [taylor]: Taking taylor expansion of 2 in y
2.795 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp (/ -1 x)) 1.0))) in y
2.795 * [taylor]: Taking taylor expansion of (sqrt (+ (exp (/ -1 x)) 1.0)) in y
2.795 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) 1.0) in y
2.795 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in y
2.795 * [taylor]: Taking taylor expansion of (/ -1 x) in y
2.795 * [taylor]: Taking taylor expansion of -1 in y
2.795 * [taylor]: Taking taylor expansion of x in y
2.795 * [taylor]: Taking taylor expansion of 1.0 in y
2.796 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
2.796 * [taylor]: Taking taylor expansion of (* x y) in y
2.796 * [taylor]: Taking taylor expansion of x in y
2.796 * [taylor]: Taking taylor expansion of y in y
2.796 * [taylor]: Taking taylor expansion of (- (* 2 (log (sqrt (+ (exp (/ -1 x)) 1.0)))) (/ 1 (* x y))) in x
2.796 * [taylor]: Taking taylor expansion of (* 2 (log (sqrt (+ (exp (/ -1 x)) 1.0)))) in x
2.796 * [taylor]: Taking taylor expansion of 2 in x
2.796 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp (/ -1 x)) 1.0))) in x
2.796 * [taylor]: Taking taylor expansion of (sqrt (+ (exp (/ -1 x)) 1.0)) in x
2.796 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) 1.0) in x
2.796 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
2.796 * [taylor]: Taking taylor expansion of (/ -1 x) in x
2.796 * [taylor]: Taking taylor expansion of -1 in x
2.796 * [taylor]: Taking taylor expansion of x in x
2.797 * [taylor]: Taking taylor expansion of 1.0 in x
2.797 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
2.797 * [taylor]: Taking taylor expansion of (* x y) in x
2.797 * [taylor]: Taking taylor expansion of x in x
2.797 * [taylor]: Taking taylor expansion of y in x
2.797 * [taylor]: Taking taylor expansion of (- (* 2 (log (sqrt (+ (exp (/ -1 x)) 1.0)))) (/ 1 (* x y))) in x
2.797 * [taylor]: Taking taylor expansion of (* 2 (log (sqrt (+ (exp (/ -1 x)) 1.0)))) in x
2.797 * [taylor]: Taking taylor expansion of 2 in x
2.797 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp (/ -1 x)) 1.0))) in x
2.798 * [taylor]: Taking taylor expansion of (sqrt (+ (exp (/ -1 x)) 1.0)) in x
2.798 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) 1.0) in x
2.798 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
2.798 * [taylor]: Taking taylor expansion of (/ -1 x) in x
2.798 * [taylor]: Taking taylor expansion of -1 in x
2.798 * [taylor]: Taking taylor expansion of x in x
2.798 * [taylor]: Taking taylor expansion of 1.0 in x
2.798 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
2.798 * [taylor]: Taking taylor expansion of (* x y) in x
2.798 * [taylor]: Taking taylor expansion of x in x
2.798 * [taylor]: Taking taylor expansion of y in x
2.799 * [taylor]: Taking taylor expansion of (- (/ 1 y)) in y
2.799 * [taylor]: Taking taylor expansion of (/ 1 y) in y
2.799 * [taylor]: Taking taylor expansion of y in y
2.800 * [taylor]: Taking taylor expansion of (* 2 (log (sqrt (+ (exp (/ -1 x)) 1.0)))) in y
2.800 * [taylor]: Taking taylor expansion of 2 in y
2.800 * [taylor]: Taking taylor expansion of (log (sqrt (+ (exp (/ -1 x)) 1.0))) in y
2.800 * [taylor]: Taking taylor expansion of (sqrt (+ (exp (/ -1 x)) 1.0)) in y
2.800 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) 1.0) in y
2.800 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in y
2.800 * [taylor]: Taking taylor expansion of (/ -1 x) in y
2.800 * [taylor]: Taking taylor expansion of -1 in y
2.801 * [taylor]: Taking taylor expansion of x in y
2.801 * [taylor]: Taking taylor expansion of 1.0 in y
2.804 * [taylor]: Taking taylor expansion of 0 in y
2.809 * [taylor]: Taking taylor expansion of 0 in y
2.816 * [taylor]: Taking taylor expansion of 0 in y
2.817 * * * * [progress]: [ 4 / 4 ] generating series at (2 1 2 1 1)
2.817 * [approximate]: Taking taylor expansion of (+ (exp x) 1.0) in (x) around 0
2.817 * [taylor]: Taking taylor expansion of (+ (exp x) 1.0) in x
2.817 * [taylor]: Taking taylor expansion of (exp x) in x
2.817 * [taylor]: Taking taylor expansion of x in x
2.817 * [taylor]: Taking taylor expansion of 1.0 in x
2.817 * [taylor]: Taking taylor expansion of (+ (exp x) 1.0) in x
2.817 * [taylor]: Taking taylor expansion of (exp x) in x
2.817 * [taylor]: Taking taylor expansion of x in x
2.817 * [taylor]: Taking taylor expansion of 1.0 in x
2.819 * [approximate]: Taking taylor expansion of (+ (exp (/ 1 x)) 1.0) in (x) around 0
2.820 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) 1.0) in x
2.820 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
2.820 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.820 * [taylor]: Taking taylor expansion of x in x
2.820 * [taylor]: Taking taylor expansion of 1.0 in x
2.820 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) 1.0) in x
2.820 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x
2.820 * [taylor]: Taking taylor expansion of (/ 1 x) in x
2.820 * [taylor]: Taking taylor expansion of x in x
2.820 * [taylor]: Taking taylor expansion of 1.0 in x
2.822 * [approximate]: Taking taylor expansion of (+ (exp (/ -1 x)) 1.0) in (x) around 0
2.822 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) 1.0) in x
2.822 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
2.822 * [taylor]: Taking taylor expansion of (/ -1 x) in x
2.822 * [taylor]: Taking taylor expansion of -1 in x
2.822 * [taylor]: Taking taylor expansion of x in x
2.822 * [taylor]: Taking taylor expansion of 1.0 in x
2.822 * [taylor]: Taking taylor expansion of (+ (exp (/ -1 x)) 1.0) in x
2.822 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x
2.822 * [taylor]: Taking taylor expansion of (/ -1 x) in x
2.822 * [taylor]: Taking taylor expansion of -1 in x
2.822 * [taylor]: Taking taylor expansion of x in x
2.823 * [taylor]: Taking taylor expansion of 1.0 in x
2.824 * * * [progress]: simplifying candidates
2.826 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (log (* (cbrt (sqrt (+ 1.0 (exp x)))) (cbrt (sqrt (+ 1.0 (exp x))))))
  (log (cbrt (sqrt (+ 1.0 (exp x)))))
  (log (sqrt (* (cbrt (+ 1.0 (exp x))) (cbrt (+ 1.0 (exp x))))))
  (log (sqrt (cbrt (+ 1.0 (exp x)))))
  (log (sqrt (sqrt (+ 1.0 (exp x)))))
  (log (sqrt (sqrt (+ 1.0 (exp x)))))
  (log (sqrt 1))
  (log (sqrt (+ 1.0 (exp x))))
  (log (sqrt 1))
  (log (sqrt (+ 1.0 (exp x))))
  (log (sqrt (sqrt (+ 1.0 (exp x)))))
  (log (sqrt (sqrt (+ 1.0 (exp x)))))
  (log 1)
  (log (sqrt (+ 1.0 (exp x))))
  (log (sqrt (+ (pow 1.0 3) (pow (exp x) 3))))
  (log (sqrt (+ (* 1.0 1.0) (- (* (exp x) (exp x)) (* 1.0 (exp x))))))
  (log (sqrt (- (* 1.0 1.0) (* (exp x) (exp x)))))
  (log (sqrt (- 1.0 (exp x))))
  (log (+ 1.0 (exp x)))
  (log (sqrt (+ 1.0 (exp x))))
  (log (+ 1.0 (exp x)))
  (log (log (sqrt (+ 1.0 (exp x)))))
  (exp (log (sqrt (+ 1.0 (exp x)))))
  (* (cbrt (log (sqrt (+ 1.0 (exp x))))) (cbrt (log (sqrt (+ 1.0 (exp x))))))
  (cbrt (log (sqrt (+ 1.0 (exp x)))))
  (* (* (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (log (sqrt (+ 1.0 (exp x)))))
  (sqrt (log (sqrt (+ 1.0 (exp x)))))
  (sqrt (log (sqrt (+ 1.0 (exp x)))))
  (log (* (cbrt (sqrt (+ 1.0 (exp x)))) (cbrt (sqrt (+ 1.0 (exp x))))))
  (log (cbrt (sqrt (+ 1.0 (exp x)))))
  (log (sqrt (* (cbrt (+ 1.0 (exp x))) (cbrt (+ 1.0 (exp x))))))
  (log (sqrt (cbrt (+ 1.0 (exp x)))))
  (log (sqrt (sqrt (+ 1.0 (exp x)))))
  (log (sqrt (sqrt (+ 1.0 (exp x)))))
  (log (sqrt 1))
  (log (sqrt (+ 1.0 (exp x))))
  (log (sqrt 1))
  (log (sqrt (+ 1.0 (exp x))))
  (log (sqrt (sqrt (+ 1.0 (exp x)))))
  (log (sqrt (sqrt (+ 1.0 (exp x)))))
  (log 1)
  (log (sqrt (+ 1.0 (exp x))))
  (log (sqrt (+ (pow 1.0 3) (pow (exp x) 3))))
  (log (sqrt (+ (* 1.0 1.0) (- (* (exp x) (exp x)) (* 1.0 (exp x))))))
  (log (sqrt (- (* 1.0 1.0) (* (exp x) (exp x)))))
  (log (sqrt (- 1.0 (exp x))))
  (log (+ 1.0 (exp x)))
  (log (sqrt (+ 1.0 (exp x))))
  (log (+ 1.0 (exp x)))
  (log (log (sqrt (+ 1.0 (exp x)))))
  (exp (log (sqrt (+ 1.0 (exp x)))))
  (* (cbrt (log (sqrt (+ 1.0 (exp x))))) (cbrt (log (sqrt (+ 1.0 (exp x))))))
  (cbrt (log (sqrt (+ 1.0 (exp x)))))
  (* (* (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (log (sqrt (+ 1.0 (exp x)))))
  (sqrt (log (sqrt (+ 1.0 (exp x)))))
  (sqrt (log (sqrt (+ 1.0 (exp x)))))
  (/ (* (sqrt (+ 1.0 (exp x))) (sqrt (+ 1.0 (exp x)))) (exp (* x y)))
  (/ (exp (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x)))))) (exp (* x y)))
  (log (- (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (* x y)))
  (exp (- (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (* x y)))
  (* (cbrt (- (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (* x y))) (cbrt (- (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (* x y))))
  (cbrt (- (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (* x y)))
  (* (* (- (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (* x y)) (- (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (* x y))) (- (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (* x y)))
  (sqrt (- (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (* x y)))
  (sqrt (- (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (* x y)))
  (- (pow (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) 3) (pow (* x y) 3))
  (+ (* (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x)))))) (+ (* (* x y) (* x y)) (* (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (* x y))))
  (- (* x y))
  (- (* (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x)))))) (* (* x y) (* x y)))
  (+ (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (* x y))
  (- (log (sqrt (+ 1.0 (exp x)))) (* x y))
  (+ (log (sqrt (+ (* 1.0 1.0) (- (* (exp x) (exp x)) (* 1.0 (exp x)))))) (* x y))
  (+ (log (sqrt (- 1.0 (exp x)))) (* x y))
  (+ (- (log (sqrt (+ (* 1.0 1.0) (- (* (exp x) (exp x)) (* 1.0 (exp x)))))) (log (sqrt (+ 1.0 (exp x))))) (* x y))
  (+ (- (log (sqrt (- 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (* x y))
  (- (* x y))
  (* (exp 1.0) (exp (exp x)))
  (log (+ 1.0 (exp x)))
  (exp (+ 1.0 (exp x)))
  (* (cbrt (+ 1.0 (exp x))) (cbrt (+ 1.0 (exp x))))
  (cbrt (+ 1.0 (exp x)))
  (* (* (+ 1.0 (exp x)) (+ 1.0 (exp x))) (+ 1.0 (exp x)))
  (sqrt (+ 1.0 (exp x)))
  (sqrt (+ 1.0 (exp x)))
  (+ (pow 1.0 3) (pow (exp x) 3))
  (+ (* 1.0 1.0) (- (* (exp x) (exp x)) (* 1.0 (exp x))))
  (- (* 1.0 1.0) (* (exp x) (exp x)))
  (- 1.0 (exp x))
  (+ 1.0 (exp x))
  (- (+ (* 1/4 (/ (pow x 2) (pow (sqrt 2.0) 2))) (+ (* 1/2 (/ x (pow (sqrt 2.0) 2))) (log (sqrt 2.0)))) (* 1/4 (/ (pow x 2) (pow (sqrt 2.0) 4))))
  (log (sqrt (+ (exp x) 1.0)))
  (log (sqrt (+ (exp x) 1.0)))
  (- (+ (* 1/4 (/ (pow x 2) (pow (sqrt 2.0) 2))) (+ (* 1/2 (/ x (pow (sqrt 2.0) 2))) (log (sqrt 2.0)))) (* 1/4 (/ (pow x 2) (pow (sqrt 2.0) 4))))
  (log (sqrt (+ (exp x) 1.0)))
  (log (sqrt (+ (exp x) 1.0)))
  (- (+ (* 1/2 (/ (pow x 2) (pow (sqrt 2.0) 2))) (+ (/ x (pow (sqrt 2.0) 2)) (* 2 (log (sqrt 2.0))))) (* 1/2 (/ (pow x 2) (pow (sqrt 2.0) 4))))
  (- (* 2 (log (sqrt (+ (exp x) 1.0)))) (* x y))
  (- (* 2 (log (sqrt (+ (exp x) 1.0)))) (* x y))
  (+ (* 1/2 (pow x 2)) (+ x 2.0))
  (+ (exp x) 1.0)
  (+ (exp x) 1.0)
2.829 * * [simplify]: iteration  0 :  122  enodes  (cost  1143 )
2.853 * * [simplify]: iteration  1 :  271  enodes  (cost  988 )
2.909 * * [simplify]: iteration  2 :  755  enodes  (cost  853 )
3.167 * * [simplify]: iteration  3 :  2495  enodes  (cost  833 )
3.903 * * [simplify]: iteration  done :  5000  enodes  (cost  833 )
3.904 * [simplify]: Simplified to:
   (* 2 (log (cbrt (sqrt (+ 1.0 (exp x))))))
  (log (cbrt (sqrt (+ 1.0 (exp x)))))
  (log (fabs (cbrt (+ 1.0 (exp x)))))
  (log (sqrt (cbrt (+ 1.0 (exp x)))))
  (log (sqrt (sqrt (+ 1.0 (exp x)))))
  (log (sqrt (sqrt (+ 1.0 (exp x)))))
  0
  (log (sqrt (+ (exp x) 1.0)))
  0
  (log (sqrt (+ (exp x) 1.0)))
  (log (sqrt (sqrt (+ 1.0 (exp x)))))
  (log (sqrt (sqrt (+ 1.0 (exp x)))))
  0
  (log (sqrt (+ (exp x) 1.0)))
  (log (sqrt (+ (pow 1.0 3) (pow (exp x) 3))))
  (log (sqrt (+ (* (exp x) (- (exp x) 1.0)) (* 1.0 1.0))))
  (log (sqrt (- (* 1.0 1.0) (exp (+ x x)))))
  (log (sqrt (- 1.0 (exp x))))
  (log (+ 1.0 (exp x)))
  (log (sqrt (+ (exp x) 1.0)))
  (log (+ 1.0 (exp x)))
  (log (log (sqrt (+ 1.0 (exp x)))))
  (sqrt (+ (exp x) 1.0))
  (* (cbrt (log (sqrt (+ 1.0 (exp x))))) (cbrt (log (sqrt (+ 1.0 (exp x))))))
  (cbrt (log (sqrt (+ 1.0 (exp x)))))
  (pow (log (sqrt (+ (exp x) 1.0))) 3)
  (sqrt (log (sqrt (+ 1.0 (exp x)))))
  (sqrt (log (sqrt (+ 1.0 (exp x)))))
  (* 2 (log (cbrt (sqrt (+ 1.0 (exp x))))))
  (log (cbrt (sqrt (+ 1.0 (exp x)))))
  (log (fabs (cbrt (+ 1.0 (exp x)))))
  (log (sqrt (cbrt (+ 1.0 (exp x)))))
  (log (sqrt (sqrt (+ 1.0 (exp x)))))
  (log (sqrt (sqrt (+ 1.0 (exp x)))))
  0
  (log (sqrt (+ (exp x) 1.0)))
  0
  (log (sqrt (+ (exp x) 1.0)))
  (log (sqrt (sqrt (+ 1.0 (exp x)))))
  (log (sqrt (sqrt (+ 1.0 (exp x)))))
  0
  (log (sqrt (+ (exp x) 1.0)))
  (log (sqrt (+ (pow 1.0 3) (pow (exp x) 3))))
  (log (sqrt (+ (* (exp x) (- (exp x) 1.0)) (* 1.0 1.0))))
  (log (sqrt (- (* 1.0 1.0) (exp (+ x x)))))
  (log (sqrt (- 1.0 (exp x))))
  (log (+ 1.0 (exp x)))
  (log (sqrt (+ (exp x) 1.0)))
  (log (+ 1.0 (exp x)))
  (log (log (sqrt (+ 1.0 (exp x)))))
  (sqrt (+ (exp x) 1.0))
  (* (cbrt (log (sqrt (+ 1.0 (exp x))))) (cbrt (log (sqrt (+ 1.0 (exp x))))))
  (cbrt (log (sqrt (+ 1.0 (exp x)))))
  (pow (log (sqrt (+ (exp x) 1.0))) 3)
  (sqrt (log (sqrt (+ 1.0 (exp x)))))
  (sqrt (log (sqrt (+ 1.0 (exp x)))))
  (/ (+ (exp x) 1.0) (exp (* x y)))
  (/ (+ (exp x) 1.0) (exp (* x y)))
  (log (- (log (+ 1.0 (exp x))) (* x y)))
  (/ (+ (exp x) 1.0) (exp (* x y)))
  (* (cbrt (- (log (+ 1.0 (exp x))) (* x y))) (cbrt (- (log (+ 1.0 (exp x))) (* x y))))
  (cbrt (- (log (+ 1.0 (exp x))) (* x y)))
  (pow (- (log (+ 1.0 (exp x))) (* x y)) 3)
  (sqrt (- (log (+ 1.0 (exp x))) (* x y)))
  (sqrt (- (log (+ 1.0 (exp x))) (* x y)))
  (- (pow (log (+ 1.0 (exp x))) 3) (pow (* x y) 3))
  (+ (* (* x y) (* x y)) (* (log (+ 1.0 (exp x))) (+ (log (+ 1.0 (exp x))) (* x y))))
  (- (* x y))
  (- (* (log (+ 1.0 (exp x))) (log (+ 1.0 (exp x)))) (* (* x y) (* x y)))
  (+ (log (+ 1.0 (exp x))) (* x y))
  (- (log (sqrt (+ 1.0 (exp x)))) (* x y))
  (+ (* x y) (log (sqrt (+ (* (exp x) (- (exp x) 1.0)) (* 1.0 1.0)))))
  (+ (log (sqrt (- 1.0 (exp x)))) (* x y))
  (- (log (sqrt (+ (* (exp x) (- (exp x) 1.0)) (* 1.0 1.0)))) (- (log (sqrt (+ 1.0 (exp x)))) (* x y)))
  (+ (- (log (sqrt (- 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (* x y))
  (- (* x y))
  (exp (+ 1.0 (exp x)))
  (log (+ 1.0 (exp x)))
  (exp (+ 1.0 (exp x)))
  (* (cbrt (+ 1.0 (exp x))) (cbrt (+ 1.0 (exp x))))
  (cbrt (+ 1.0 (exp x)))
  (pow (+ (exp x) 1.0) 3)
  (sqrt (+ (exp x) 1.0))
  (sqrt (+ (exp x) 1.0))
  (+ (pow 1.0 3) (pow (exp x) 3))
  (+ (* (exp x) (- (exp x) 1.0)) (* 1.0 1.0))
  (- (* 1.0 1.0) (exp (+ x x)))
  (- 1.0 (exp x))
  (+ (exp x) 1.0)
  (+ (* (/ (pow x 2) 2.0) (- 1/4 (/ 1/4 2.0))) (+ (log (sqrt 2.0)) (/ (* 1/2 x) 2.0)))
  (log (sqrt (+ (exp x) 1.0)))
  (log (sqrt (+ (exp x) 1.0)))
  (+ (* (/ (pow x 2) 2.0) (- 1/4 (/ 1/4 2.0))) (+ (log (sqrt 2.0)) (/ (* 1/2 x) 2.0)))
  (log (sqrt (+ (exp x) 1.0)))
  (log (sqrt (+ (exp x) 1.0)))
  (+ (* (/ (pow x 2) 2.0) (- 1/2 (/ 1/2 2.0))) (+ (/ x 2.0) (* 2 (log (sqrt 2.0)))))
  (- (log (+ 1.0 (exp x))) (* x y))
  (- (log (+ 1.0 (exp x))) (* x y))
  (+ (* 1/2 (pow x 2)) (+ x 2.0))
  (+ (exp x) 1.0)
  (+ (exp x) 1.0)
3.905 * * * [progress]: adding candidates to table
4.130 * [progress]: [Phase 3 of 3] Extracting.
4.130 * * [regime]: Finding splitpoints for: (#<alt (λ (x y) (- (log (+ 1.0 (exp x))) (* x y)))> #<alt (λ (x y) (- (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (* x y)))>)
4.130 * * * [regime-changes]: Trying 3 branch expressions: ((- (log (+ 1.0 (exp x))) (* x y)) y x)
4.130 * * * * [regimes]: Trying to branch on (- (log (+ 1.0 (exp x))) (* x y)) from (#<alt (λ (x y) (- (log (+ 1.0 (exp x))) (* x y)))> #<alt (λ (x y) (- (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (* x y)))>)
4.152 * * * * [regimes]: Trying to branch on y from (#<alt (λ (x y) (- (log (+ 1.0 (exp x))) (* x y)))> #<alt (λ (x y) (- (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (* x y)))>)
4.164 * * * * [regimes]: Trying to branch on x from (#<alt (λ (x y) (- (log (+ 1.0 (exp x))) (* x y)))> #<alt (λ (x y) (- (+ (log (sqrt (+ 1.0 (exp x)))) (log (sqrt (+ 1.0 (exp x))))) (* x y)))>)
4.176 * * * [regime]: Found split indices: #<option (#s(si 0 255))>
4.176 * [simplify]: Simplifying using  #<procedure:simplify-batch-regraph> :
   (- (log (+ 1.0 (exp x))) (* x y))
4.176 * * [simplify]: iteration  0 :  8  enodes  (cost  9 )
4.176 * * [simplify]: iteration  1 :  10  enodes  (cost  9 )
4.177 * * [simplify]: iteration  done :  10  enodes  (cost  9 )
4.177 * [simplify]: Simplified to:
   (- (log (+ 1.0 (exp x))) (* x y))
6.078 * [regime-testing]: Baseline error score: 0.41200696270943377
6.078 * [regime-testing]: Oracle error score: 0.4031096099151542
6.079 * [regime-testing]: End program error score: 0.41200696270943377
6.129 * [regime-testing]: Target error score: 0.050065479398839687