18.810 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.024 * * * [progress]: [2/2] Setting up program.
0.025 * [progress]: [Phase 2 of 3] Improving.
0.026 * [simplify]: Simplifying:
  (* (+ x y) (- x y))
0.026 * * [simplify]: Extracting # 0 : cost  0
0.026 * * [simplify]: Extracting # 1 : cost  0
0.026 * * [simplify]: Extracting # 2 : cost  0
0.026 * * [simplify]: Extracting # 3 : cost  0
0.026 * * [simplify]: Extracting # 4 : cost  0
0.026 * * [simplify]: iteration  0 :  5  enodes  (cost  7 )
0.027 * * [simplify]: Extracting # 0 : cost  0
0.027 * * [simplify]: Extracting # 1 : cost  0
0.027 * * [simplify]: Extracting # 2 : cost  0
0.027 * * [simplify]: iteration  1 :  9  enodes  (cost  7 )
0.028 * * [simplify]: Extracting # 0 : cost  0
0.028 * * [simplify]: Extracting # 1 : cost  0
0.028 * * [simplify]: Extracting # 2 : cost  0
0.028 * * [simplify]: iteration  2 :  24  enodes  (cost  7 )
0.033 * * [simplify]: Extracting # 0 : cost  0
0.033 * * [simplify]: Extracting # 1 : cost  0
0.034 * * [simplify]: Extracting # 2 : cost  0
0.034 * * [simplify]: iteration  3 :  53  enodes  (cost  7 )
0.047 * * [simplify]: Extracting # 0 : cost  0
0.047 * * [simplify]: Extracting # 1 : cost  0
0.047 * * [simplify]: Extracting # 2 : cost  0
0.047 * * [simplify]: iteration  4 :  122  enodes  (cost  7 )
0.080 * * [simplify]: Extracting # 0 : cost  0
0.080 * * [simplify]: Extracting # 1 : cost  0
0.080 * * [simplify]: Extracting # 2 : cost  0
0.080 * * [simplify]: iteration  5 :  176  enodes  (cost  7 )
0.128 * * [simplify]: Extracting # 0 : cost  0
0.128 * * [simplify]: Extracting # 1 : cost  0
0.129 * * [simplify]: Extracting # 2 : cost  0
0.129 * * [simplify]: iteration  6 :  261  enodes  (cost  7 )
0.208 * * [simplify]: Extracting # 0 : cost  0
0.209 * * [simplify]: Extracting # 1 : cost  0
0.209 * * [simplify]: Extracting # 2 : cost  0
0.209 * * [simplify]: Extracting # 3 : cost  0
0.210 * * [simplify]: Extracting # 4 : cost  0
0.210 * * [simplify]: iteration  7 :  399  enodes  (cost  7 )
0.425 * * [simplify]: Extracting # 0 : cost  0
0.426 * * [simplify]: Extracting # 1 : cost  0
0.427 * * [simplify]: Extracting # 2 : cost  0
0.427 * * [simplify]: iteration  8 :  787  enodes  (cost  7 )
2.173 * * [simplify]: Extracting # 0 : cost  0
2.181 * * [simplify]: Extracting # 1 : cost  0
2.182 * * [simplify]: Extracting # 2 : cost  0
2.184 * * [simplify]: Extracting # 3 : cost  0
2.185 * * [simplify]: Extracting # 4 : cost  0
2.186 * * [simplify]: iteration  9 :  1977  enodes  (cost  7 )
4.071 * * [simplify]: Extracting # 0 : cost  0
4.082 * * [simplify]: Extracting # 1 : cost  0
4.086 * * [simplify]: Extracting # 2 : cost  0
4.091 * * [simplify]: Extracting # 3 : cost  0
4.097 * * [simplify]: Extracting # 4 : cost  0
4.104 * * [simplify]: iteration done:  5000  enodes  (cost  7 )
4.104 * [simplify]: Simplified to:
  (* (+ x y) (- x y))
4.105 * * [progress]: iteration 1 / 4
4.105 * * * [progress]: picking best candidate
4.107 * * * * [pick]: Picked  #<alt (λ (x y) (* (+ x y) (- x y)))>
4.107 * * * [progress]: localizing error
4.115 * * * [progress]: generating rewritten candidates
4.115 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
4.183 * * * [progress]: generating series expansions
4.183 * * * * [progress]: [ 1 / 1 ] generating series at (2)
4.183 * [backup-simplify]: Simplify (* (+ x y) (- x y)) into (* (+ x y) (- x y))
4.183 * [approximate]: Taking taylor expansion of (* (+ x y) (- x y)) in (x y) around 0
4.183 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in y
4.183 * [taylor]: Taking taylor expansion of (+ x y) in y
4.183 * [taylor]: Taking taylor expansion of x in y
4.183 * [backup-simplify]: Simplify x into x
4.183 * [taylor]: Taking taylor expansion of y in y
4.183 * [backup-simplify]: Simplify 0 into 0
4.183 * [backup-simplify]: Simplify 1 into 1
4.184 * [taylor]: Taking taylor expansion of (- x y) in y
4.184 * [taylor]: Taking taylor expansion of x in y
4.184 * [backup-simplify]: Simplify x into x
4.184 * [taylor]: Taking taylor expansion of y in y
4.184 * [backup-simplify]: Simplify 0 into 0
4.184 * [backup-simplify]: Simplify 1 into 1
4.184 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
4.184 * [taylor]: Taking taylor expansion of (+ x y) in x
4.184 * [taylor]: Taking taylor expansion of x in x
4.184 * [backup-simplify]: Simplify 0 into 0
4.184 * [backup-simplify]: Simplify 1 into 1
4.184 * [taylor]: Taking taylor expansion of y in x
4.184 * [backup-simplify]: Simplify y into y
4.184 * [taylor]: Taking taylor expansion of (- x y) in x
4.184 * [taylor]: Taking taylor expansion of x in x
4.184 * [backup-simplify]: Simplify 0 into 0
4.184 * [backup-simplify]: Simplify 1 into 1
4.184 * [taylor]: Taking taylor expansion of y in x
4.184 * [backup-simplify]: Simplify y into y
4.184 * [taylor]: Taking taylor expansion of (* (+ x y) (- x y)) in x
4.184 * [taylor]: Taking taylor expansion of (+ x y) in x
4.184 * [taylor]: Taking taylor expansion of x in x
4.184 * [backup-simplify]: Simplify 0 into 0
4.184 * [backup-simplify]: Simplify 1 into 1
4.184 * [taylor]: Taking taylor expansion of y in x
4.184 * [backup-simplify]: Simplify y into y
4.184 * [taylor]: Taking taylor expansion of (- x y) in x
4.184 * [taylor]: Taking taylor expansion of x in x
4.184 * [backup-simplify]: Simplify 0 into 0
4.184 * [backup-simplify]: Simplify 1 into 1
4.184 * [taylor]: Taking taylor expansion of y in x
4.184 * [backup-simplify]: Simplify y into y
4.184 * [backup-simplify]: Simplify (+ 0 y) into y
4.184 * [backup-simplify]: Simplify (- y) into (- y)
4.184 * [backup-simplify]: Simplify (+ 0 (- y)) into (- y)
4.185 * [backup-simplify]: Simplify (* y (- y)) into (* -1 (pow y 2))
4.185 * [taylor]: Taking taylor expansion of (* -1 (pow y 2)) in y
4.185 * [taylor]: Taking taylor expansion of -1 in y
4.185 * [backup-simplify]: Simplify -1 into -1
4.185 * [taylor]: Taking taylor expansion of (pow y 2) in y
4.185 * [taylor]: Taking taylor expansion of y in y
4.185 * [backup-simplify]: Simplify 0 into 0
4.185 * [backup-simplify]: Simplify 1 into 1
4.185 * [backup-simplify]: Simplify (- 0) into 0
4.186 * [backup-simplify]: Simplify (+ 1 0) into 1
4.186 * [backup-simplify]: Simplify (+ 1 0) into 1
4.186 * [backup-simplify]: Simplify (+ (* y 1) (* 1 (- y))) into 0
4.186 * [taylor]: Taking taylor expansion of 0 in y
4.186 * [backup-simplify]: Simplify 0 into 0
4.186 * [backup-simplify]: Simplify 0 into 0
4.187 * [backup-simplify]: Simplify (- 0) into 0
4.187 * [backup-simplify]: Simplify (+ 0 0) into 0
4.187 * [backup-simplify]: Simplify (+ 0 0) into 0
4.188 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 1 1) (* 0 (- y)))) into 1
4.188 * [taylor]: Taking taylor expansion of 1 in y
4.188 * [backup-simplify]: Simplify 1 into 1
4.188 * [backup-simplify]: Simplify 1 into 1
4.188 * [backup-simplify]: Simplify 0 into 0
4.188 * [backup-simplify]: Simplify (* 1 1) into 1
4.189 * [backup-simplify]: Simplify (* -1 1) into -1
4.189 * [backup-simplify]: Simplify -1 into -1
4.189 * [backup-simplify]: Simplify (- 0) into 0
4.189 * [backup-simplify]: Simplify (+ 0 0) into 0
4.190 * [backup-simplify]: Simplify (+ 0 0) into 0
4.190 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 1 0) (+ (* 0 1) (* 0 (- y))))) into 0
4.190 * [taylor]: Taking taylor expansion of 0 in y
4.190 * [backup-simplify]: Simplify 0 into 0
4.190 * [backup-simplify]: Simplify 0 into 0
4.190 * [backup-simplify]: Simplify 0 into 0
4.190 * [backup-simplify]: Simplify 0 into 0
4.191 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.192 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 1)) into 0
4.192 * [backup-simplify]: Simplify 0 into 0
4.192 * [backup-simplify]: Simplify (- 0) into 0
4.193 * [backup-simplify]: Simplify (+ 0 0) into 0
4.193 * [backup-simplify]: Simplify (+ 0 0) into 0
4.194 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 1) (* 0 (- y)))))) into 0
4.194 * [taylor]: Taking taylor expansion of 0 in y
4.194 * [backup-simplify]: Simplify 0 into 0
4.194 * [backup-simplify]: Simplify 0 into 0
4.194 * [backup-simplify]: Simplify 0 into 0
4.194 * [backup-simplify]: Simplify (+ (* -1 (pow (* y 1) 2)) (* 1 (pow (* 1 x) 2))) into (- (pow x 2) (pow y 2))
4.195 * [backup-simplify]: Simplify (* (+ (/ 1 x) (/ 1 y)) (- (/ 1 x) (/ 1 y))) into (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x)))
4.195 * [approximate]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in (x y) around 0
4.195 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in y
4.195 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in y
4.195 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.195 * [taylor]: Taking taylor expansion of x in y
4.195 * [backup-simplify]: Simplify x into x
4.195 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
4.195 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.195 * [taylor]: Taking taylor expansion of y in y
4.195 * [backup-simplify]: Simplify 0 into 0
4.195 * [backup-simplify]: Simplify 1 into 1
4.195 * [backup-simplify]: Simplify (/ 1 1) into 1
4.195 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
4.195 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.195 * [taylor]: Taking taylor expansion of y in y
4.195 * [backup-simplify]: Simplify 0 into 0
4.195 * [backup-simplify]: Simplify 1 into 1
4.196 * [backup-simplify]: Simplify (/ 1 1) into 1
4.196 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.196 * [taylor]: Taking taylor expansion of x in y
4.196 * [backup-simplify]: Simplify x into x
4.196 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
4.196 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
4.196 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
4.196 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.196 * [taylor]: Taking taylor expansion of x in x
4.196 * [backup-simplify]: Simplify 0 into 0
4.196 * [backup-simplify]: Simplify 1 into 1
4.196 * [backup-simplify]: Simplify (/ 1 1) into 1
4.196 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.196 * [taylor]: Taking taylor expansion of y in x
4.197 * [backup-simplify]: Simplify y into y
4.197 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.197 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
4.197 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.197 * [taylor]: Taking taylor expansion of y in x
4.197 * [backup-simplify]: Simplify y into y
4.197 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.197 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.197 * [taylor]: Taking taylor expansion of x in x
4.197 * [backup-simplify]: Simplify 0 into 0
4.197 * [backup-simplify]: Simplify 1 into 1
4.197 * [backup-simplify]: Simplify (/ 1 1) into 1
4.197 * [taylor]: Taking taylor expansion of (* (- (/ 1 x) (/ 1 y)) (+ (/ 1 y) (/ 1 x))) in x
4.197 * [taylor]: Taking taylor expansion of (- (/ 1 x) (/ 1 y)) in x
4.197 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.197 * [taylor]: Taking taylor expansion of x in x
4.197 * [backup-simplify]: Simplify 0 into 0
4.197 * [backup-simplify]: Simplify 1 into 1
4.198 * [backup-simplify]: Simplify (/ 1 1) into 1
4.198 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.198 * [taylor]: Taking taylor expansion of y in x
4.198 * [backup-simplify]: Simplify y into y
4.198 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.198 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
4.198 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.198 * [taylor]: Taking taylor expansion of y in x
4.198 * [backup-simplify]: Simplify y into y
4.198 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.198 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.198 * [taylor]: Taking taylor expansion of x in x
4.198 * [backup-simplify]: Simplify 0 into 0
4.198 * [backup-simplify]: Simplify 1 into 1
4.198 * [backup-simplify]: Simplify (/ 1 1) into 1
4.199 * [backup-simplify]: Simplify (+ 1 0) into 1
4.199 * [backup-simplify]: Simplify (+ 0 1) into 1
4.199 * [backup-simplify]: Simplify (* 1 1) into 1
4.199 * [taylor]: Taking taylor expansion of 1 in y
4.199 * [backup-simplify]: Simplify 1 into 1
4.200 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.200 * [backup-simplify]: Simplify (+ (/ 1 y) 0) into (/ 1 y)
4.201 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.201 * [backup-simplify]: Simplify (- (/ 1 y)) into (- (/ 1 y))
4.201 * [backup-simplify]: Simplify (+ 0 (- (/ 1 y))) into (- (/ 1 y))
4.201 * [backup-simplify]: Simplify (+ (* 1 (/ 1 y)) (* (- (/ 1 y)) 1)) into 0
4.201 * [taylor]: Taking taylor expansion of 0 in y
4.201 * [backup-simplify]: Simplify 0 into 0
4.201 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
4.202 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.203 * [backup-simplify]: Simplify (+ 0 0) into 0
4.203 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.203 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
4.203 * [backup-simplify]: Simplify (- 0) into 0
4.204 * [backup-simplify]: Simplify (+ 0 0) into 0
4.204 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (- (/ 1 y)) (/ 1 y)) (* 0 1))) into (- (/ 1 (pow y 2)))
4.204 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
4.204 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
4.204 * [taylor]: Taking taylor expansion of (pow y 2) in y
4.204 * [taylor]: Taking taylor expansion of y in y
4.204 * [backup-simplify]: Simplify 0 into 0
4.204 * [backup-simplify]: Simplify 1 into 1
4.205 * [backup-simplify]: Simplify (* 1 1) into 1
4.205 * [backup-simplify]: Simplify (/ 1 1) into 1
4.205 * [backup-simplify]: Simplify (- 1) into -1
4.205 * [backup-simplify]: Simplify -1 into -1
4.205 * [backup-simplify]: Simplify 1 into 1
4.205 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.206 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.206 * [backup-simplify]: Simplify (+ 0 0) into 0
4.206 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.207 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.207 * [backup-simplify]: Simplify (- 0) into 0
4.207 * [backup-simplify]: Simplify (+ 0 0) into 0
4.208 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (- (/ 1 y)) 0) (+ (* 0 (/ 1 y)) (* 0 1)))) into 0
4.208 * [taylor]: Taking taylor expansion of 0 in y
4.208 * [backup-simplify]: Simplify 0 into 0
4.208 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.208 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.209 * [backup-simplify]: Simplify (- 0) into 0
4.209 * [backup-simplify]: Simplify 0 into 0
4.209 * [backup-simplify]: Simplify 0 into 0
4.209 * [backup-simplify]: Simplify 0 into 0
4.209 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.209 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.210 * [backup-simplify]: Simplify (+ 0 0) into 0
4.210 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.210 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.211 * [backup-simplify]: Simplify (- 0) into 0
4.211 * [backup-simplify]: Simplify (+ 0 0) into 0
4.212 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (- (/ 1 y)) 0) (+ (* 0 0) (+ (* 0 (/ 1 y)) (* 0 1))))) into 0
4.212 * [taylor]: Taking taylor expansion of 0 in y
4.212 * [backup-simplify]: Simplify 0 into 0
4.212 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
4.213 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.213 * [backup-simplify]: Simplify (- 0) into 0
4.213 * [backup-simplify]: Simplify 0 into 0
4.213 * [backup-simplify]: Simplify 0 into 0
4.213 * [backup-simplify]: Simplify 0 into 0
4.213 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 x))) 2)) (* -1 (pow (* (/ 1 (/ 1 y)) 1) 2))) into (- (pow x 2) (pow y 2))
4.213 * [backup-simplify]: Simplify (* (+ (/ 1 (- x)) (/ 1 (- y))) (- (/ 1 (- x)) (/ 1 (- y)))) into (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))))
4.213 * [approximate]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in (x y) around 0
4.213 * [taylor]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in y
4.214 * [taylor]: Taking taylor expansion of -1 in y
4.214 * [backup-simplify]: Simplify -1 into -1
4.214 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in y
4.214 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in y
4.214 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.214 * [taylor]: Taking taylor expansion of y in y
4.214 * [backup-simplify]: Simplify 0 into 0
4.214 * [backup-simplify]: Simplify 1 into 1
4.214 * [backup-simplify]: Simplify (/ 1 1) into 1
4.214 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.214 * [taylor]: Taking taylor expansion of x in y
4.214 * [backup-simplify]: Simplify x into x
4.214 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
4.214 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in y
4.214 * [taylor]: Taking taylor expansion of (/ 1 y) in y
4.214 * [taylor]: Taking taylor expansion of y in y
4.214 * [backup-simplify]: Simplify 0 into 0
4.214 * [backup-simplify]: Simplify 1 into 1
4.214 * [backup-simplify]: Simplify (/ 1 1) into 1
4.214 * [taylor]: Taking taylor expansion of (/ 1 x) in y
4.214 * [taylor]: Taking taylor expansion of x in y
4.214 * [backup-simplify]: Simplify x into x
4.214 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
4.214 * [taylor]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in x
4.214 * [taylor]: Taking taylor expansion of -1 in x
4.214 * [backup-simplify]: Simplify -1 into -1
4.214 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
4.214 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
4.215 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.215 * [taylor]: Taking taylor expansion of y in x
4.215 * [backup-simplify]: Simplify y into y
4.215 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.215 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.215 * [taylor]: Taking taylor expansion of x in x
4.215 * [backup-simplify]: Simplify 0 into 0
4.215 * [backup-simplify]: Simplify 1 into 1
4.215 * [backup-simplify]: Simplify (/ 1 1) into 1
4.215 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
4.215 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.215 * [taylor]: Taking taylor expansion of y in x
4.215 * [backup-simplify]: Simplify y into y
4.215 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.215 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.215 * [taylor]: Taking taylor expansion of x in x
4.215 * [backup-simplify]: Simplify 0 into 0
4.215 * [backup-simplify]: Simplify 1 into 1
4.215 * [backup-simplify]: Simplify (/ 1 1) into 1
4.215 * [taylor]: Taking taylor expansion of (* -1 (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x)))) in x
4.215 * [taylor]: Taking taylor expansion of -1 in x
4.215 * [backup-simplify]: Simplify -1 into -1
4.215 * [taylor]: Taking taylor expansion of (* (+ (/ 1 y) (/ 1 x)) (- (/ 1 y) (/ 1 x))) in x
4.215 * [taylor]: Taking taylor expansion of (+ (/ 1 y) (/ 1 x)) in x
4.215 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.215 * [taylor]: Taking taylor expansion of y in x
4.216 * [backup-simplify]: Simplify y into y
4.216 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.216 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.216 * [taylor]: Taking taylor expansion of x in x
4.216 * [backup-simplify]: Simplify 0 into 0
4.216 * [backup-simplify]: Simplify 1 into 1
4.216 * [backup-simplify]: Simplify (/ 1 1) into 1
4.216 * [taylor]: Taking taylor expansion of (- (/ 1 y) (/ 1 x)) in x
4.216 * [taylor]: Taking taylor expansion of (/ 1 y) in x
4.216 * [taylor]: Taking taylor expansion of y in x
4.216 * [backup-simplify]: Simplify y into y
4.216 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
4.216 * [taylor]: Taking taylor expansion of (/ 1 x) in x
4.216 * [taylor]: Taking taylor expansion of x in x
4.216 * [backup-simplify]: Simplify 0 into 0
4.216 * [backup-simplify]: Simplify 1 into 1
4.216 * [backup-simplify]: Simplify (/ 1 1) into 1
4.217 * [backup-simplify]: Simplify (+ 0 1) into 1
4.217 * [backup-simplify]: Simplify (- 1) into -1
4.218 * [backup-simplify]: Simplify (+ 0 -1) into -1
4.218 * [backup-simplify]: Simplify (* 1 -1) into -1
4.218 * [backup-simplify]: Simplify (* -1 -1) into 1
4.218 * [taylor]: Taking taylor expansion of 1 in y
4.218 * [backup-simplify]: Simplify 1 into 1
4.219 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.219 * [backup-simplify]: Simplify (- 0) into 0
4.219 * [backup-simplify]: Simplify (+ (/ 1 y) 0) into (/ 1 y)
4.220 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.220 * [backup-simplify]: Simplify (+ (/ 1 y) 0) into (/ 1 y)
4.220 * [backup-simplify]: Simplify (+ (* 1 (/ 1 y)) (* (/ 1 y) -1)) into 0
4.221 * [backup-simplify]: Simplify (+ (* -1 0) (* 0 -1)) into 0
4.221 * [taylor]: Taking taylor expansion of 0 in y
4.221 * [backup-simplify]: Simplify 0 into 0
4.221 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
4.222 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.222 * [backup-simplify]: Simplify (- 0) into 0
4.223 * [backup-simplify]: Simplify (+ 0 0) into 0
4.223 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
4.223 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.223 * [backup-simplify]: Simplify (+ 0 0) into 0
4.224 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) (/ 1 y)) (* 0 -1))) into (/ 1 (pow y 2))
4.225 * [backup-simplify]: Simplify (+ (* -1 (/ 1 (pow y 2))) (+ (* 0 0) (* 0 -1))) into (- (/ 1 (pow y 2)))
4.225 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 2))) in y
4.225 * [taylor]: Taking taylor expansion of (/ 1 (pow y 2)) in y
4.225 * [taylor]: Taking taylor expansion of (pow y 2) in y
4.225 * [taylor]: Taking taylor expansion of y in y
4.225 * [backup-simplify]: Simplify 0 into 0
4.225 * [backup-simplify]: Simplify 1 into 1
4.225 * [backup-simplify]: Simplify (* 1 1) into 1
4.225 * [backup-simplify]: Simplify (/ 1 1) into 1
4.225 * [backup-simplify]: Simplify (- 1) into -1
4.225 * [backup-simplify]: Simplify -1 into -1
4.225 * [backup-simplify]: Simplify 1 into 1
4.226 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.226 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.226 * [backup-simplify]: Simplify (- 0) into 0
4.227 * [backup-simplify]: Simplify (+ 0 0) into 0
4.227 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.227 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.227 * [backup-simplify]: Simplify (+ 0 0) into 0
4.228 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) 0) (+ (* 0 (/ 1 y)) (* 0 -1)))) into 0
4.229 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 (/ 1 (pow y 2))) (+ (* 0 0) (* 0 -1)))) into 0
4.229 * [taylor]: Taking taylor expansion of 0 in y
4.229 * [backup-simplify]: Simplify 0 into 0
4.229 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
4.230 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
4.230 * [backup-simplify]: Simplify (- 0) into 0
4.230 * [backup-simplify]: Simplify 0 into 0
4.230 * [backup-simplify]: Simplify 0 into 0
4.230 * [backup-simplify]: Simplify 0 into 0
4.230 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.231 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.231 * [backup-simplify]: Simplify (- 0) into 0
4.231 * [backup-simplify]: Simplify (+ 0 0) into 0
4.231 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
4.232 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.232 * [backup-simplify]: Simplify (+ 0 0) into 0
4.233 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* (/ 1 y) 0) (+ (* 0 0) (+ (* 0 (/ 1 y)) (* 0 -1))))) into 0
4.234 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 (/ 1 (pow y 2))) (+ (* 0 0) (* 0 -1))))) into 0
4.234 * [taylor]: Taking taylor expansion of 0 in y
4.234 * [backup-simplify]: Simplify 0 into 0
4.234 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
4.235 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
4.235 * [backup-simplify]: Simplify (- 0) into 0
4.235 * [backup-simplify]: Simplify 0 into 0
4.235 * [backup-simplify]: Simplify 0 into 0
4.235 * [backup-simplify]: Simplify 0 into 0
4.235 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 2)) (* -1 (pow (* (/ 1 (/ 1 (- y))) 1) 2))) into (- (pow x 2) (pow y 2))
4.236 * * * [progress]: simplifying candidates
4.236 * [simplify]: Simplifying:
  (* (+ x y) (- x y))
  (+ (log (+ x y)) (log (- x y)))
  (log (* (+ x y) (- x y)))
  (exp (* (+ x y) (- x y)))
  (* (* (* (+ x y) (+ x y)) (+ x y)) (* (* (- x y) (- x y)) (- x y)))
  (* (cbrt (* (+ x y) (- x y))) (cbrt (* (+ x y) (- x y))))
  (cbrt (* (+ x y) (- x y)))
  (* (* (* (+ x y) (- x y)) (* (+ x y) (- x y))) (* (+ x y) (- x y)))
  (sqrt (* (+ x y) (- x y)))
  (sqrt (* (+ x y) (- x y)))
  (* (+ (pow x 3) (pow y 3)) (- (pow x 3) (pow y 3)))
  (* (+ (* x x) (- (* y y) (* x y))) (+ (* x x) (+ (* y y) (* x y))))
  (* (+ (pow x 3) (pow y 3)) (- (* x x) (* y y)))
  (* (+ (* x x) (- (* y y) (* x y))) (+ x y))
  (* (- (* x x) (* y y)) (- (pow x 3) (pow y 3)))
  (* (- x y) (+ (* x x) (+ (* y y) (* x y))))
  (* (- (* x x) (* y y)) (- (* x x) (* y y)))
  (* (- x y) (+ x y))
  (* (sqrt (+ x y)) (sqrt (- x y)))
  (* (sqrt (+ x y)) (sqrt (- x y)))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* x (+ x y))
  (* (- y) (+ x y))
  (* x (+ x y))
  (* (- y) (+ x y))
  (* (+ x y) (* (cbrt (- x y)) (cbrt (- x y))))
  (* (+ x y) (sqrt (- x y)))
  (* (+ x y) 1)
  (* (+ x y) (+ (sqrt x) (sqrt y)))
  (* (+ x y) 1)
  (* (cbrt (+ x y)) (- x y))
  (* (sqrt (+ x y)) (- x y))
  (* (+ x y) (- x y))
  (* (+ x y) (- x y))
  (* (+ x y) (- (pow x 3) (pow y 3)))
  (* (+ x y) (- (* x x) (* y y)))
  (* (+ (pow x 3) (pow y 3)) (- x y))
  (* (- (* x x) (* y y)) (- x y))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
4.237 * * [simplify]: Extracting # 0 : cost  0
4.237 * * [simplify]: Extracting # 1 : cost  0
4.237 * * [simplify]: Extracting # 2 : cost  0
4.237 * * [simplify]: Extracting # 3 : cost  0
4.237 * * [simplify]: Extracting # 4 : cost  0
4.237 * * [simplify]: Extracting # 5 : cost  0
4.237 * * [simplify]: Extracting # 6 : cost  0
4.237 * * [simplify]: iteration  0 :  70  enodes  (cost  436 )
4.253 * * [simplify]: Extracting # 0 : cost  0
4.253 * * [simplify]: Extracting # 1 : cost  0
4.253 * * [simplify]: Extracting # 2 : cost  0
4.254 * * [simplify]: Extracting # 3 : cost  0
4.254 * * [simplify]: Extracting # 4 : cost  0
4.254 * * [simplify]: iteration  1 :  192  enodes  (cost  423 )
4.340 * * [simplify]: Extracting # 0 : cost  0
4.341 * * [simplify]: Extracting # 1 : cost  0
4.342 * * [simplify]: Extracting # 2 : cost  0
4.343 * * [simplify]: Extracting # 3 : cost  0
4.344 * * [simplify]: Extracting # 4 : cost  0
4.345 * * [simplify]: iteration  2 :  840  enodes  (cost  395 )
5.250 * * [simplify]: Extracting # 0 : cost  0
5.257 * * [simplify]: Extracting # 1 : cost  0
5.263 * * [simplify]: Extracting # 2 : cost  0
5.268 * * [simplify]: Extracting # 3 : cost  0
5.277 * * [simplify]: Extracting # 4 : cost  0
5.282 * * [simplify]: iteration  3 :  3985  enodes  (cost  395 )
6.739 * * [simplify]: Extracting # 0 : cost  0
6.749 * * [simplify]: Extracting # 1 : cost  0
6.758 * * [simplify]: Extracting # 2 : cost  0
6.766 * * [simplify]: Extracting # 3 : cost  0
6.775 * * [simplify]: Extracting # 4 : cost  0
6.782 * * [simplify]: iteration done:  5001  enodes  (cost  395 )
6.782 * [simplify]: Simplified to:
  (- (pow x 2) (pow y 2))
  (log (* (+ x y) (- x y)))
  (log (* (+ x y) (- x y)))
  (exp (* (+ x y) (- x y)))
  (pow (- (pow x 2) (pow y 2)) 3)
  (* (cbrt (* (+ x y) (- x y))) (cbrt (* (+ x y) (- x y))))
  (cbrt (* (+ x y) (- x y)))
  (pow (- (pow x 2) (pow y 2)) 3)
  (sqrt (* (+ x y) (- x y)))
  (sqrt (* (+ x y) (- x y)))
  (* (+ (pow x 3) (pow y 3)) (- (pow x 3) (pow y 3)))
  (* (+ (* y (- y x)) (* x x)) (+ (* y (+ x y)) (* x x)))
  (* (+ (pow x 3) (pow y 3)) (- (* x x) (* y y)))
  (* (+ (* y (- y x)) (* x x)) (+ x y))
  (* (- (* x x) (* y y)) (- (pow x 3) (pow y 3)))
  (* (+ (* y (+ x y)) (* x x)) (- x y))
  (* (- x y) (* (+ x y) (- (* x x) (* y y))))
  (- (pow x 2) (pow y 2))
  (* (sqrt (+ x y)) (sqrt (- x y)))
  (* (sqrt (+ x y)) (sqrt (- x y)))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* (+ x y) x)
  (* (+ x y) (- y))
  (* (+ x y) (* (cbrt (- x y)) (cbrt (- x y))))
  (* (+ x y) (sqrt (- x y)))
  (+ x y)
  (* (+ x y) (+ (sqrt x) (sqrt y)))
  (+ x y)
  (* (cbrt (+ x y)) (- x y))
  (* (sqrt (+ x y)) (- x y))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (* (+ x y) (- (pow x 3) (pow y 3)))
  (* (+ x y) (- (* x x) (* y y)))
  (* (- x y) (+ (pow x 3) (pow y 3)))
  (* (- (pow x 2) (pow y 2)) (- x y))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
  (- (pow x 2) (pow y 2))
6.783 * * * [progress]: adding candidates to table
6.879 * * [progress]: iteration 2 / 4
6.879 * * * [progress]: picking best candidate
6.881 * * * * [pick]: Picked  #<alt (λ (x y) (pow (- (pow x 2) (pow y 2)) 1))>
6.881 * * * [progress]: localizing error
6.893 * * * [progress]: generating rewritten candidates
6.893 * * * [progress]: generating series expansions
6.893 * * * [progress]: simplifying candidates
6.894 * [simplify]: Simplifying:
  
6.894 * * [simplify]: Extracting # 0 : cost  0
6.894 * * [simplify]: iteration  0 :  0  enodes  (cost  0 )
6.894 * * [simplify]: Extracting # 0 : cost  0
6.894 * * [simplify]: iteration done:  0  enodes  (cost  0 )
6.894 * [simplify]: Simplified to:
  
6.894 * * * [progress]: adding candidates to table
6.894 * [progress]: [Phase 3 of 3] Extracting.
6.898 * [simplify]: Simplifying:
  (pow (- (pow x 2) (pow y 2)) 1)
6.899 * * [simplify]: Extracting # 0 : cost  0
6.899 * * [simplify]: Extracting # 1 : cost  0
6.899 * * [simplify]: Extracting # 2 : cost  0
6.899 * * [simplify]: Extracting # 3 : cost  0
6.899 * * [simplify]: Extracting # 4 : cost  0
6.899 * * [simplify]: Extracting # 5 : cost  0
6.899 * * [simplify]: iteration  0 :  8  enodes  (cost  9 )
6.900 * * [simplify]: Extracting # 0 : cost  0
6.900 * * [simplify]: iteration  1 :  10  enodes  (cost  7 )
6.900 * * [simplify]: Extracting # 0 : cost  0
6.900 * * [simplify]: iteration done:  10  enodes  (cost  7 )
6.900 * [simplify]: Simplified to:
  (- (pow x 2) (pow y 2))
8.230 * [regime-testing]: Baseline error score: 0.007029481021439666
8.232 * [regime-testing]: Oracle error score: 0.007029481021439666
8.232 * [regime-testing]: End program error score: 0.007029481021439666