3.842 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.037 * * * [progress]: [2/2] Setting up program.
0.039 * [progress]: [Phase 2 of 3] Improving.
0.039 * [simplify]: Simplifying:
  (- (pow x 4.0) (pow y 4.0))
0.039 * [simplify]: Sending expressions to egg_math:
 (- (pow h0 h1) (pow h2 h1))
0.041 * * [simplify]: iteration  0 :  14  enodes  (cost  3 )
0.043 * * [simplify]: iteration  1 :  29  enodes  (cost  3 )
0.044 * * [simplify]: iteration  2 :  68  enodes  (cost  3 )
0.046 * * [simplify]: iteration  3 :  204  enodes  (cost  3 )
0.050 * * [simplify]: iteration  4 :  776  enodes  (cost  3 )
0.069 * * [simplify]: iteration  5 :  3986  enodes  (cost  3 )
0.175 * * [simplify]: iteration  6 :  5002  enodes  (cost  3 )
0.175 * * [progress]: iteration 1 / 4
0.175 * * * [progress]: picking best candidate
0.177 * * * * [pick]: Picked  #<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))>
0.177 * * * [progress]: localizing error
0.182 * * * [progress]: generating rewritten candidates
0.182 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.200 * * * [progress]: generating series expansions
0.200 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.201 * [backup-simplify]: Simplify (- (pow x 4.0) (pow y 4.0)) into (- (pow x 4) (pow y 4))
0.201 * [approximate]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in (x y) around 0
0.201 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in y
0.201 * [taylor]: Taking taylor expansion of (pow x 4) in y
0.201 * [taylor]: Taking taylor expansion of x in y
0.201 * [backup-simplify]: Simplify x into x
0.201 * [taylor]: Taking taylor expansion of (pow y 4) in y
0.201 * [taylor]: Taking taylor expansion of y in y
0.201 * [backup-simplify]: Simplify 0 into 0
0.201 * [backup-simplify]: Simplify 1 into 1
0.201 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in x
0.201 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.201 * [taylor]: Taking taylor expansion of x in x
0.201 * [backup-simplify]: Simplify 0 into 0
0.201 * [backup-simplify]: Simplify 1 into 1
0.201 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.201 * [taylor]: Taking taylor expansion of y in x
0.201 * [backup-simplify]: Simplify y into y
0.201 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in x
0.201 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.201 * [taylor]: Taking taylor expansion of x in x
0.201 * [backup-simplify]: Simplify 0 into 0
0.201 * [backup-simplify]: Simplify 1 into 1
0.201 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.201 * [taylor]: Taking taylor expansion of y in x
0.201 * [backup-simplify]: Simplify y into y
0.201 * [backup-simplify]: Simplify (* y y) into (pow y 2)
0.201 * [backup-simplify]: Simplify (* (pow y 2) (pow y 2)) into (pow y 4)
0.201 * [backup-simplify]: Simplify (- (pow y 4)) into (- (pow y 4))
0.202 * [backup-simplify]: Simplify (+ 0 (- (pow y 4))) into (- (pow y 4))
0.202 * [taylor]: Taking taylor expansion of (- (pow y 4)) in y
0.202 * [taylor]: Taking taylor expansion of (pow y 4) in y
0.202 * [taylor]: Taking taylor expansion of y in y
0.202 * [backup-simplify]: Simplify 0 into 0
0.202 * [backup-simplify]: Simplify 1 into 1
0.202 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
0.202 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (* 0 (pow y 2))) into 0
0.202 * [backup-simplify]: Simplify (- 0) into 0
0.203 * [backup-simplify]: Simplify (+ 0 0) into 0
0.203 * [taylor]: Taking taylor expansion of 0 in y
0.203 * [backup-simplify]: Simplify 0 into 0
0.203 * [backup-simplify]: Simplify 0 into 0
0.203 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
0.203 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (+ (* 0 0) (* 0 (pow y 2)))) into 0
0.204 * [backup-simplify]: Simplify (- 0) into 0
0.204 * [backup-simplify]: Simplify (+ 0 0) into 0
0.204 * [taylor]: Taking taylor expansion of 0 in y
0.204 * [backup-simplify]: Simplify 0 into 0
0.204 * [backup-simplify]: Simplify 0 into 0
0.204 * [backup-simplify]: Simplify 0 into 0
0.204 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0
0.205 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow y 2))))) into 0
0.205 * [backup-simplify]: Simplify (- 0) into 0
0.206 * [backup-simplify]: Simplify (+ 0 0) into 0
0.206 * [taylor]: Taking taylor expansion of 0 in y
0.206 * [backup-simplify]: Simplify 0 into 0
0.206 * [backup-simplify]: Simplify 0 into 0
0.206 * [backup-simplify]: Simplify 0 into 0
0.206 * [backup-simplify]: Simplify 0 into 0
0.206 * [backup-simplify]: Simplify 0 into 0
0.206 * [backup-simplify]: Simplify (- (pow (/ 1 x) 4.0) (pow (/ 1 y) 4.0)) into (- (/ 1 (pow x 4)) (/ 1 (pow y 4)))
0.206 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in (x y) around 0
0.206 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in y
0.206 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in y
0.206 * [taylor]: Taking taylor expansion of (pow x 4) in y
0.206 * [taylor]: Taking taylor expansion of x in y
0.206 * [backup-simplify]: Simplify x into x
0.206 * [backup-simplify]: Simplify (* x x) into (pow x 2)
0.206 * [backup-simplify]: Simplify (* (pow x 2) (pow x 2)) into (pow x 4)
0.206 * [backup-simplify]: Simplify (/ 1 (pow x 4)) into (/ 1 (pow x 4))
0.206 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
0.206 * [taylor]: Taking taylor expansion of (pow y 4) in y
0.206 * [taylor]: Taking taylor expansion of y in y
0.206 * [backup-simplify]: Simplify 0 into 0
0.206 * [backup-simplify]: Simplify 1 into 1
0.207 * [backup-simplify]: Simplify (* 1 1) into 1
0.207 * [backup-simplify]: Simplify (* 1 1) into 1
0.207 * [backup-simplify]: Simplify (/ 1 1) into 1
0.207 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
0.207 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.207 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.207 * [taylor]: Taking taylor expansion of x in x
0.207 * [backup-simplify]: Simplify 0 into 0
0.207 * [backup-simplify]: Simplify 1 into 1
0.207 * [backup-simplify]: Simplify (* 1 1) into 1
0.208 * [backup-simplify]: Simplify (* 1 1) into 1
0.208 * [backup-simplify]: Simplify (/ 1 1) into 1
0.208 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
0.208 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.208 * [taylor]: Taking taylor expansion of y in x
0.208 * [backup-simplify]: Simplify y into y
0.208 * [backup-simplify]: Simplify (* y y) into (pow y 2)
0.208 * [backup-simplify]: Simplify (* (pow y 2) (pow y 2)) into (pow y 4)
0.208 * [backup-simplify]: Simplify (/ 1 (pow y 4)) into (/ 1 (pow y 4))
0.208 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
0.208 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.208 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.208 * [taylor]: Taking taylor expansion of x in x
0.208 * [backup-simplify]: Simplify 0 into 0
0.208 * [backup-simplify]: Simplify 1 into 1
0.208 * [backup-simplify]: Simplify (* 1 1) into 1
0.209 * [backup-simplify]: Simplify (* 1 1) into 1
0.209 * [backup-simplify]: Simplify (/ 1 1) into 1
0.209 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
0.209 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.209 * [taylor]: Taking taylor expansion of y in x
0.209 * [backup-simplify]: Simplify y into y
0.209 * [backup-simplify]: Simplify (* y y) into (pow y 2)
0.209 * [backup-simplify]: Simplify (* (pow y 2) (pow y 2)) into (pow y 4)
0.209 * [backup-simplify]: Simplify (/ 1 (pow y 4)) into (/ 1 (pow y 4))
0.210 * [backup-simplify]: Simplify (+ 1 0) into 1
0.210 * [taylor]: Taking taylor expansion of 1 in y
0.210 * [backup-simplify]: Simplify 1 into 1
0.210 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
0.210 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
0.211 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
0.211 * [backup-simplify]: Simplify (+ 0 0) into 0
0.211 * [taylor]: Taking taylor expansion of 0 in y
0.211 * [backup-simplify]: Simplify 0 into 0
0.211 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
0.212 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
0.212 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.213 * [backup-simplify]: Simplify (+ 0 0) into 0
0.213 * [taylor]: Taking taylor expansion of 0 in y
0.213 * [backup-simplify]: Simplify 0 into 0
0.213 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
0.214 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
0.214 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.215 * [backup-simplify]: Simplify (+ 0 0) into 0
0.215 * [taylor]: Taking taylor expansion of 0 in y
0.215 * [backup-simplify]: Simplify 0 into 0
0.215 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
0.216 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
0.216 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.217 * [backup-simplify]: Simplify (- (/ 1 (pow y 4))) into (- (/ 1 (pow y 4)))
0.217 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 4)))) into (- (/ 1 (pow y 4)))
0.217 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 4))) in y
0.217 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
0.217 * [taylor]: Taking taylor expansion of (pow y 4) in y
0.217 * [taylor]: Taking taylor expansion of y in y
0.217 * [backup-simplify]: Simplify 0 into 0
0.217 * [backup-simplify]: Simplify 1 into 1
0.217 * [backup-simplify]: Simplify (* 1 1) into 1
0.217 * [backup-simplify]: Simplify (* 1 1) into 1
0.218 * [backup-simplify]: Simplify (/ 1 1) into 1
0.218 * [backup-simplify]: Simplify (- 1) into -1
0.218 * [backup-simplify]: Simplify -1 into -1
0.218 * [backup-simplify]: Simplify 1 into 1
0.219 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))) into 0
0.219 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))) into 0
0.220 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.220 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
0.220 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (* 0 (pow y 2))) into 0
0.220 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 4)) (/ 0 (pow y 4))))) into 0
0.221 * [backup-simplify]: Simplify (- 0) into 0
0.221 * [backup-simplify]: Simplify (+ 0 0) into 0
0.221 * [taylor]: Taking taylor expansion of 0 in y
0.221 * [backup-simplify]: Simplify 0 into 0
0.221 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
0.222 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
0.222 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
0.222 * [backup-simplify]: Simplify (- 0) into 0
0.222 * [backup-simplify]: Simplify 0 into 0
0.222 * [backup-simplify]: Simplify 0 into 0
0.222 * [backup-simplify]: Simplify 0 into 0
0.223 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))))) into 0
0.224 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))))) into 0
0.224 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.225 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
0.225 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (+ (* 0 0) (* 0 (pow y 2)))) into 0
0.226 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 4)) (/ 0 (pow y 4))) (* 0 (/ 0 (pow y 4))))) into 0
0.226 * [backup-simplify]: Simplify (- 0) into 0
0.226 * [backup-simplify]: Simplify (+ 0 0) into 0
0.226 * [taylor]: Taking taylor expansion of 0 in y
0.226 * [backup-simplify]: Simplify 0 into 0
0.227 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
0.227 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
0.227 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.228 * [backup-simplify]: Simplify (- 0) into 0
0.228 * [backup-simplify]: Simplify 0 into 0
0.228 * [backup-simplify]: Simplify 0 into 0
0.228 * [backup-simplify]: Simplify 0 into 0
0.228 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 x))) 4)) (* -1 (pow (* (/ 1 (/ 1 y)) 1) 4))) into (- (pow x 4) (pow y 4))
0.228 * [backup-simplify]: Simplify (- (pow (/ 1 (- x)) 4.0) (pow (/ 1 (- y)) 4.0)) into (- (/ 1 (pow x 4)) (/ 1 (pow y 4)))
0.228 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in (x y) around 0
0.228 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in y
0.228 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in y
0.228 * [taylor]: Taking taylor expansion of (pow x 4) in y
0.228 * [taylor]: Taking taylor expansion of x in y
0.229 * [backup-simplify]: Simplify x into x
0.229 * [backup-simplify]: Simplify (* x x) into (pow x 2)
0.229 * [backup-simplify]: Simplify (* (pow x 2) (pow x 2)) into (pow x 4)
0.229 * [backup-simplify]: Simplify (/ 1 (pow x 4)) into (/ 1 (pow x 4))
0.229 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
0.229 * [taylor]: Taking taylor expansion of (pow y 4) in y
0.229 * [taylor]: Taking taylor expansion of y in y
0.229 * [backup-simplify]: Simplify 0 into 0
0.229 * [backup-simplify]: Simplify 1 into 1
0.229 * [backup-simplify]: Simplify (* 1 1) into 1
0.229 * [backup-simplify]: Simplify (* 1 1) into 1
0.230 * [backup-simplify]: Simplify (/ 1 1) into 1
0.230 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
0.230 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.230 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.230 * [taylor]: Taking taylor expansion of x in x
0.230 * [backup-simplify]: Simplify 0 into 0
0.230 * [backup-simplify]: Simplify 1 into 1
0.230 * [backup-simplify]: Simplify (* 1 1) into 1
0.230 * [backup-simplify]: Simplify (* 1 1) into 1
0.230 * [backup-simplify]: Simplify (/ 1 1) into 1
0.230 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
0.230 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.230 * [taylor]: Taking taylor expansion of y in x
0.230 * [backup-simplify]: Simplify y into y
0.230 * [backup-simplify]: Simplify (* y y) into (pow y 2)
0.231 * [backup-simplify]: Simplify (* (pow y 2) (pow y 2)) into (pow y 4)
0.231 * [backup-simplify]: Simplify (/ 1 (pow y 4)) into (/ 1 (pow y 4))
0.231 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
0.231 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
0.231 * [taylor]: Taking taylor expansion of (pow x 4) in x
0.231 * [taylor]: Taking taylor expansion of x in x
0.231 * [backup-simplify]: Simplify 0 into 0
0.231 * [backup-simplify]: Simplify 1 into 1
0.231 * [backup-simplify]: Simplify (* 1 1) into 1
0.231 * [backup-simplify]: Simplify (* 1 1) into 1
0.231 * [backup-simplify]: Simplify (/ 1 1) into 1
0.231 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
0.231 * [taylor]: Taking taylor expansion of (pow y 4) in x
0.231 * [taylor]: Taking taylor expansion of y in x
0.231 * [backup-simplify]: Simplify y into y
0.231 * [backup-simplify]: Simplify (* y y) into (pow y 2)
0.232 * [backup-simplify]: Simplify (* (pow y 2) (pow y 2)) into (pow y 4)
0.232 * [backup-simplify]: Simplify (/ 1 (pow y 4)) into (/ 1 (pow y 4))
0.232 * [backup-simplify]: Simplify (+ 1 0) into 1
0.232 * [taylor]: Taking taylor expansion of 1 in y
0.232 * [backup-simplify]: Simplify 1 into 1
0.232 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
0.233 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
0.233 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
0.233 * [backup-simplify]: Simplify (+ 0 0) into 0
0.233 * [taylor]: Taking taylor expansion of 0 in y
0.233 * [backup-simplify]: Simplify 0 into 0
0.234 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
0.234 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
0.235 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.235 * [backup-simplify]: Simplify (+ 0 0) into 0
0.235 * [taylor]: Taking taylor expansion of 0 in y
0.235 * [backup-simplify]: Simplify 0 into 0
0.236 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
0.236 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
0.237 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.237 * [backup-simplify]: Simplify (+ 0 0) into 0
0.237 * [taylor]: Taking taylor expansion of 0 in y
0.237 * [backup-simplify]: Simplify 0 into 0
0.238 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
0.238 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
0.242 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.243 * [backup-simplify]: Simplify (- (/ 1 (pow y 4))) into (- (/ 1 (pow y 4)))
0.243 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 4)))) into (- (/ 1 (pow y 4)))
0.243 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 4))) in y
0.243 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
0.243 * [taylor]: Taking taylor expansion of (pow y 4) in y
0.243 * [taylor]: Taking taylor expansion of y in y
0.243 * [backup-simplify]: Simplify 0 into 0
0.243 * [backup-simplify]: Simplify 1 into 1
0.243 * [backup-simplify]: Simplify (* 1 1) into 1
0.243 * [backup-simplify]: Simplify (* 1 1) into 1
0.244 * [backup-simplify]: Simplify (/ 1 1) into 1
0.244 * [backup-simplify]: Simplify (- 1) into -1
0.244 * [backup-simplify]: Simplify -1 into -1
0.244 * [backup-simplify]: Simplify 1 into 1
0.245 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))) into 0
0.245 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))) into 0
0.246 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.246 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
0.246 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (* 0 (pow y 2))) into 0
0.246 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 4)) (/ 0 (pow y 4))))) into 0
0.247 * [backup-simplify]: Simplify (- 0) into 0
0.247 * [backup-simplify]: Simplify (+ 0 0) into 0
0.247 * [taylor]: Taking taylor expansion of 0 in y
0.247 * [backup-simplify]: Simplify 0 into 0
0.247 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
0.248 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
0.248 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
0.248 * [backup-simplify]: Simplify (- 0) into 0
0.248 * [backup-simplify]: Simplify 0 into 0
0.248 * [backup-simplify]: Simplify 0 into 0
0.248 * [backup-simplify]: Simplify 0 into 0
0.249 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))))) into 0
0.250 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))))) into 0
0.250 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.251 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
0.251 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (+ (* 0 0) (* 0 (pow y 2)))) into 0
0.251 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 4)) (/ 0 (pow y 4))) (* 0 (/ 0 (pow y 4))))) into 0
0.252 * [backup-simplify]: Simplify (- 0) into 0
0.252 * [backup-simplify]: Simplify (+ 0 0) into 0
0.252 * [taylor]: Taking taylor expansion of 0 in y
0.252 * [backup-simplify]: Simplify 0 into 0
0.252 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
0.253 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
0.253 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.254 * [backup-simplify]: Simplify (- 0) into 0
0.254 * [backup-simplify]: Simplify 0 into 0
0.254 * [backup-simplify]: Simplify 0 into 0
0.254 * [backup-simplify]: Simplify 0 into 0
0.254 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 4)) (* -1 (pow (* (/ 1 (/ 1 (- y))) 1) 4))) into (- (pow x 4) (pow y 4))
0.254 * * * [progress]: simplifying candidates
0.255 * [simplify]: Simplifying:
  (/ (exp (pow x 4.0)) (exp (pow y 4.0)))
  (log (- (pow x 4.0) (pow y 4.0)))
  (exp (- (pow x 4.0) (pow y 4.0)))
  (* (cbrt (- (pow x 4.0) (pow y 4.0))) (cbrt (- (pow x 4.0) (pow y 4.0))))
  (cbrt (- (pow x 4.0) (pow y 4.0)))
  (* (* (- (pow x 4.0) (pow y 4.0)) (- (pow x 4.0) (pow y 4.0))) (- (pow x 4.0) (pow y 4.0)))
  (sqrt (- (pow x 4.0) (pow y 4.0)))
  (sqrt (- (pow x 4.0) (pow y 4.0)))
  (- (pow (pow x 4.0) 3) (pow (pow y 4.0) 3))
  (+ (* (pow x 4.0) (pow x 4.0)) (+ (* (pow y 4.0) (pow y 4.0)) (* (pow x 4.0) (pow y 4.0))))
  (- (pow y 4.0))
  (- (* (pow x 4.0) (pow x 4.0)) (* (pow y 4.0) (pow y 4.0)))
  (+ (pow x 4.0) (pow y 4.0))
  (+ (pow (sqrt x) 4.0) (pow (sqrt y) 4.0))
  (- (pow (sqrt x) 4.0) (pow (sqrt y) 4.0))
  (+ (pow (sqrt x) 4.0) (sqrt (pow y 4.0)))
  (- (pow (sqrt x) 4.0) (sqrt (pow y 4.0)))
  (+ (pow (sqrt x) 4.0) (pow y (/ 4.0 2)))
  (- (pow (sqrt x) 4.0) (pow y (/ 4.0 2)))
  (+ (sqrt (pow x 4.0)) (pow (sqrt y) 4.0))
  (- (sqrt (pow x 4.0)) (pow (sqrt y) 4.0))
  (+ (sqrt (pow x 4.0)) (sqrt (pow y 4.0)))
  (- (sqrt (pow x 4.0)) (sqrt (pow y 4.0)))
  (+ (sqrt (pow x 4.0)) (pow y (/ 4.0 2)))
  (- (sqrt (pow x 4.0)) (pow y (/ 4.0 2)))
  (+ (pow x (/ 4.0 2)) (pow (sqrt y) 4.0))
  (- (pow x (/ 4.0 2)) (pow (sqrt y) 4.0))
  (+ (pow x (/ 4.0 2)) (sqrt (pow y 4.0)))
  (- (pow x (/ 4.0 2)) (sqrt (pow y 4.0)))
  (+ (pow x (/ 4.0 2)) (pow y (/ 4.0 2)))
  (- (pow x (/ 4.0 2)) (pow y (/ 4.0 2)))
  (- (pow x 4.0) (pow y 4.0))
  (- (pow x 4.0) (pow y 4.0))
  (- (pow y 4.0))
  0
  (- (pow x 4) (pow y 4))
  (- (pow x 4) (pow y 4))
0.255 * [simplify]: Sending expressions to egg_math:
 (/ (exp (pow h0 h1)) (exp (pow h2 h1)))
 (log (- (pow h0 h1) (pow h2 h1)))
 (exp (- (pow h0 h1) (pow h2 h1)))
 (* (cbrt (- (pow h0 h1) (pow h2 h1))) (cbrt (- (pow h0 h1) (pow h2 h1))))
 (cbrt (- (pow h0 h1) (pow h2 h1)))
 (* (* (- (pow h0 h1) (pow h2 h1)) (- (pow h0 h1) (pow h2 h1))) (- (pow h0 h1) (pow h2 h1)))
 (sqrt (- (pow h0 h1) (pow h2 h1)))
 (sqrt (- (pow h0 h1) (pow h2 h1)))
 (- (pow (pow h0 h1) 3) (pow (pow h2 h1) 3))
 (+ (* (pow h0 h1) (pow h0 h1)) (+ (* (pow h2 h1) (pow h2 h1)) (* (pow h0 h1) (pow h2 h1))))
 (- (pow h2 h1))
 (- (* (pow h0 h1) (pow h0 h1)) (* (pow h2 h1) (pow h2 h1)))
 (+ (pow h0 h1) (pow h2 h1))
 (+ (pow (sqrt h0) h1) (pow (sqrt h2) h1))
 (- (pow (sqrt h0) h1) (pow (sqrt h2) h1))
 (+ (pow (sqrt h0) h1) (sqrt (pow h2 h1)))
 (- (pow (sqrt h0) h1) (sqrt (pow h2 h1)))
 (+ (pow (sqrt h0) h1) (pow h2 (/ h1 2)))
 (- (pow (sqrt h0) h1) (pow h2 (/ h1 2)))
 (+ (sqrt (pow h0 h1)) (pow (sqrt h2) h1))
 (- (sqrt (pow h0 h1)) (pow (sqrt h2) h1))
 (+ (sqrt (pow h0 h1)) (sqrt (pow h2 h1)))
 (- (sqrt (pow h0 h1)) (sqrt (pow h2 h1)))
 (+ (sqrt (pow h0 h1)) (pow h2 (/ h1 2)))
 (- (sqrt (pow h0 h1)) (pow h2 (/ h1 2)))
 (+ (pow h0 (/ h1 2)) (pow (sqrt h2) h1))
 (- (pow h0 (/ h1 2)) (pow (sqrt h2) h1))
 (+ (pow h0 (/ h1 2)) (sqrt (pow h2 h1)))
 (- (pow h0 (/ h1 2)) (sqrt (pow h2 h1)))
 (+ (pow h0 (/ h1 2)) (pow h2 (/ h1 2)))
 (- (pow h0 (/ h1 2)) (pow h2 (/ h1 2)))
 (- (pow h0 h1) (pow h2 h1))
 (- (pow h0 h1) (pow h2 h1))
 (- (pow h2 h1))
 0
 (- (pow h0 4) (pow h2 4))
 (- (pow h0 4) (pow h2 4))
0.258 * * [simplify]: iteration  0 :  126  enodes  (cost  172 )
0.260 * * [simplify]: iteration  1 :  340  enodes  (cost  165 )
0.267 * * [simplify]: iteration  2 :  1287  enodes  (cost  165 )
0.297 * * [simplify]: iteration  3 :  5001  enodes  (cost  165 )
0.298 * * * [progress]: adding candidates to table
0.358 * [progress]: [Phase 3 of 3] Extracting.
0.360 * [simplify]: Simplifying:
  (- (pow x 4.0) (pow y 4.0))
0.360 * [simplify]: Sending expressions to egg_math:
 (- (pow h0 h1) (pow h2 h1))
0.361 * * [simplify]: iteration  0 :  6  enodes  (cost  3 )
1.489 * [regime-testing]: End program error score: 0.002323410738932511