11.742 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.078 * * * [progress]: [2/2] Setting up program.
0.080 * [progress]: [Phase 2 of 3] Improving.
0.080 * [simplify]: Simplifying:
  (- (pow x 4.0) (pow y 4.0))
0.080 * * [simplify]: Extracting # 0 : cost  0
0.080 * * [simplify]: Extracting # 1 : cost  0
0.080 * * [simplify]: Extracting # 2 : cost  0
0.080 * * [simplify]: Extracting # 3 : cost  0
0.080 * * [simplify]: Extracting # 4 : cost  0
0.080 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
0.082 * * [simplify]: Extracting # 0 : cost  0
0.082 * * [simplify]: Extracting # 1 : cost  0
0.082 * * [simplify]: Extracting # 2 : cost  0
0.082 * * [simplify]: Extracting # 3 : cost  0
0.082 * * [simplify]: Extracting # 4 : cost  0
0.082 * * [simplify]: iteration  1 :  14  enodes  (cost  7 )
0.085 * * [simplify]: Extracting # 0 : cost  0
0.085 * * [simplify]: Extracting # 1 : cost  0
0.085 * * [simplify]: Extracting # 2 : cost  0
0.085 * * [simplify]: Extracting # 3 : cost  0
0.085 * * [simplify]: Extracting # 4 : cost  0
0.085 * * [simplify]: iteration  2 :  30  enodes  (cost  7 )
0.092 * * [simplify]: Extracting # 0 : cost  0
0.092 * * [simplify]: Extracting # 1 : cost  0
0.092 * * [simplify]: Extracting # 2 : cost  0
0.092 * * [simplify]: Extracting # 3 : cost  0
0.092 * * [simplify]: Extracting # 4 : cost  0
0.092 * * [simplify]: iteration  3 :  74  enodes  (cost  7 )
0.119 * * [simplify]: Extracting # 0 : cost  0
0.119 * * [simplify]: Extracting # 1 : cost  0
0.119 * * [simplify]: Extracting # 2 : cost  0
0.119 * * [simplify]: Extracting # 3 : cost  0
0.120 * * [simplify]: Extracting # 4 : cost  0
0.120 * * [simplify]: iteration  4 :  213  enodes  (cost  7 )
0.216 * * [simplify]: Extracting # 0 : cost  0
0.217 * * [simplify]: Extracting # 1 : cost  0
0.218 * * [simplify]: Extracting # 2 : cost  0
0.219 * * [simplify]: Extracting # 3 : cost  0
0.219 * * [simplify]: Extracting # 4 : cost  0
0.220 * * [simplify]: iteration  5 :  658  enodes  (cost  7 )
1.103 * * [simplify]: Extracting # 0 : cost  0
1.106 * * [simplify]: Extracting # 1 : cost  0
1.109 * * [simplify]: Extracting # 2 : cost  0
1.113 * * [simplify]: Extracting # 3 : cost  0
1.118 * * [simplify]: Extracting # 4 : cost  0
1.124 * * [simplify]: iteration  6 :  3171  enodes  (cost  7 )
2.932 * * [simplify]: Extracting # 0 : cost  0
2.937 * * [simplify]: Extracting # 1 : cost  0
2.948 * * [simplify]: Extracting # 2 : cost  0
2.956 * * [simplify]: iteration done:  5000  enodes  (cost  7 )
2.956 * [simplify]: Simplified to:
  (- (pow x 4.0) (pow y 4.0))
2.957 * * [progress]: iteration 1 / 4
2.957 * * * [progress]: picking best candidate
2.960 * * * * [pick]: Picked  #<alt (λ (x y) (- (pow x 4.0) (pow y 4.0)))>
2.961 * * * [progress]: localizing error
2.973 * * * [progress]: generating rewritten candidates
2.973 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
3.030 * * * [progress]: generating series expansions
3.030 * * * * [progress]: [ 1 / 1 ] generating series at (2)
3.031 * [backup-simplify]: Simplify (- (pow x 4.0) (pow y 4.0)) into (- (pow x 4) (pow y 4))
3.031 * [approximate]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in (x y) around 0
3.031 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in y
3.031 * [taylor]: Taking taylor expansion of (pow x 4) in y
3.031 * [taylor]: Taking taylor expansion of x in y
3.031 * [backup-simplify]: Simplify x into x
3.031 * [taylor]: Taking taylor expansion of (pow y 4) in y
3.031 * [taylor]: Taking taylor expansion of y in y
3.031 * [backup-simplify]: Simplify 0 into 0
3.031 * [backup-simplify]: Simplify 1 into 1
3.031 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in x
3.031 * [taylor]: Taking taylor expansion of (pow x 4) in x
3.031 * [taylor]: Taking taylor expansion of x in x
3.031 * [backup-simplify]: Simplify 0 into 0
3.031 * [backup-simplify]: Simplify 1 into 1
3.031 * [taylor]: Taking taylor expansion of (pow y 4) in x
3.031 * [taylor]: Taking taylor expansion of y in x
3.031 * [backup-simplify]: Simplify y into y
3.031 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in x
3.031 * [taylor]: Taking taylor expansion of (pow x 4) in x
3.031 * [taylor]: Taking taylor expansion of x in x
3.031 * [backup-simplify]: Simplify 0 into 0
3.031 * [backup-simplify]: Simplify 1 into 1
3.032 * [taylor]: Taking taylor expansion of (pow y 4) in x
3.032 * [taylor]: Taking taylor expansion of y in x
3.032 * [backup-simplify]: Simplify y into y
3.032 * [backup-simplify]: Simplify (* y y) into (pow y 2)
3.032 * [backup-simplify]: Simplify (* (pow y 2) (pow y 2)) into (pow y 4)
3.032 * [backup-simplify]: Simplify (- (pow y 4)) into (- (pow y 4))
3.032 * [backup-simplify]: Simplify (+ 0 (- (pow y 4))) into (- (pow y 4))
3.032 * [taylor]: Taking taylor expansion of (- (pow y 4)) in y
3.032 * [taylor]: Taking taylor expansion of (pow y 4) in y
3.032 * [taylor]: Taking taylor expansion of y in y
3.032 * [backup-simplify]: Simplify 0 into 0
3.033 * [backup-simplify]: Simplify 1 into 1
3.033 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
3.033 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (* 0 (pow y 2))) into 0
3.034 * [backup-simplify]: Simplify (- 0) into 0
3.034 * [backup-simplify]: Simplify (+ 0 0) into 0
3.034 * [taylor]: Taking taylor expansion of 0 in y
3.034 * [backup-simplify]: Simplify 0 into 0
3.034 * [backup-simplify]: Simplify 0 into 0
3.035 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
3.035 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (+ (* 0 0) (* 0 (pow y 2)))) into 0
3.036 * [backup-simplify]: Simplify (- 0) into 0
3.036 * [backup-simplify]: Simplify (+ 0 0) into 0
3.036 * [taylor]: Taking taylor expansion of 0 in y
3.036 * [backup-simplify]: Simplify 0 into 0
3.036 * [backup-simplify]: Simplify 0 into 0
3.036 * [backup-simplify]: Simplify 0 into 0
3.037 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))) into 0
3.038 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (+ (* 0 0) (+ (* 0 0) (* 0 (pow y 2))))) into 0
3.038 * [backup-simplify]: Simplify (- 0) into 0
3.039 * [backup-simplify]: Simplify (+ 0 0) into 0
3.039 * [taylor]: Taking taylor expansion of 0 in y
3.039 * [backup-simplify]: Simplify 0 into 0
3.039 * [backup-simplify]: Simplify 0 into 0
3.039 * [backup-simplify]: Simplify 0 into 0
3.039 * [backup-simplify]: Simplify 0 into 0
3.039 * [backup-simplify]: Simplify 0 into 0
3.039 * [backup-simplify]: Simplify (- (pow (/ 1 x) 4.0) (pow (/ 1 y) 4.0)) into (- (/ 1 (pow x 4)) (/ 1 (pow y 4)))
3.039 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in (x y) around 0
3.039 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in y
3.039 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in y
3.039 * [taylor]: Taking taylor expansion of (pow x 4) in y
3.039 * [taylor]: Taking taylor expansion of x in y
3.039 * [backup-simplify]: Simplify x into x
3.039 * [backup-simplify]: Simplify (* x x) into (pow x 2)
3.039 * [backup-simplify]: Simplify (* (pow x 2) (pow x 2)) into (pow x 4)
3.039 * [backup-simplify]: Simplify (/ 1 (pow x 4)) into (/ 1 (pow x 4))
3.040 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
3.040 * [taylor]: Taking taylor expansion of (pow y 4) in y
3.040 * [taylor]: Taking taylor expansion of y in y
3.040 * [backup-simplify]: Simplify 0 into 0
3.040 * [backup-simplify]: Simplify 1 into 1
3.040 * [backup-simplify]: Simplify (* 1 1) into 1
3.040 * [backup-simplify]: Simplify (* 1 1) into 1
3.040 * [backup-simplify]: Simplify (/ 1 1) into 1
3.040 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
3.040 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
3.040 * [taylor]: Taking taylor expansion of (pow x 4) in x
3.040 * [taylor]: Taking taylor expansion of x in x
3.040 * [backup-simplify]: Simplify 0 into 0
3.040 * [backup-simplify]: Simplify 1 into 1
3.041 * [backup-simplify]: Simplify (* 1 1) into 1
3.041 * [backup-simplify]: Simplify (* 1 1) into 1
3.041 * [backup-simplify]: Simplify (/ 1 1) into 1
3.041 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
3.041 * [taylor]: Taking taylor expansion of (pow y 4) in x
3.041 * [taylor]: Taking taylor expansion of y in x
3.041 * [backup-simplify]: Simplify y into y
3.041 * [backup-simplify]: Simplify (* y y) into (pow y 2)
3.041 * [backup-simplify]: Simplify (* (pow y 2) (pow y 2)) into (pow y 4)
3.042 * [backup-simplify]: Simplify (/ 1 (pow y 4)) into (/ 1 (pow y 4))
3.042 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
3.042 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
3.042 * [taylor]: Taking taylor expansion of (pow x 4) in x
3.042 * [taylor]: Taking taylor expansion of x in x
3.042 * [backup-simplify]: Simplify 0 into 0
3.042 * [backup-simplify]: Simplify 1 into 1
3.042 * [backup-simplify]: Simplify (* 1 1) into 1
3.042 * [backup-simplify]: Simplify (* 1 1) into 1
3.042 * [backup-simplify]: Simplify (/ 1 1) into 1
3.042 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
3.042 * [taylor]: Taking taylor expansion of (pow y 4) in x
3.042 * [taylor]: Taking taylor expansion of y in x
3.042 * [backup-simplify]: Simplify y into y
3.043 * [backup-simplify]: Simplify (* y y) into (pow y 2)
3.043 * [backup-simplify]: Simplify (* (pow y 2) (pow y 2)) into (pow y 4)
3.043 * [backup-simplify]: Simplify (/ 1 (pow y 4)) into (/ 1 (pow y 4))
3.043 * [backup-simplify]: Simplify (+ 1 0) into 1
3.043 * [taylor]: Taking taylor expansion of 1 in y
3.043 * [backup-simplify]: Simplify 1 into 1
3.043 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.044 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.044 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.045 * [backup-simplify]: Simplify (+ 0 0) into 0
3.045 * [taylor]: Taking taylor expansion of 0 in y
3.045 * [backup-simplify]: Simplify 0 into 0
3.045 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.046 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.046 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.046 * [backup-simplify]: Simplify (+ 0 0) into 0
3.046 * [taylor]: Taking taylor expansion of 0 in y
3.046 * [backup-simplify]: Simplify 0 into 0
3.047 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
3.048 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
3.048 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.048 * [backup-simplify]: Simplify (+ 0 0) into 0
3.048 * [taylor]: Taking taylor expansion of 0 in y
3.048 * [backup-simplify]: Simplify 0 into 0
3.049 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
3.050 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
3.050 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.050 * [backup-simplify]: Simplify (- (/ 1 (pow y 4))) into (- (/ 1 (pow y 4)))
3.051 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 4)))) into (- (/ 1 (pow y 4)))
3.051 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 4))) in y
3.051 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
3.051 * [taylor]: Taking taylor expansion of (pow y 4) in y
3.051 * [taylor]: Taking taylor expansion of y in y
3.051 * [backup-simplify]: Simplify 0 into 0
3.051 * [backup-simplify]: Simplify 1 into 1
3.051 * [backup-simplify]: Simplify (* 1 1) into 1
3.051 * [backup-simplify]: Simplify (* 1 1) into 1
3.051 * [backup-simplify]: Simplify (/ 1 1) into 1
3.052 * [backup-simplify]: Simplify (- 1) into -1
3.052 * [backup-simplify]: Simplify -1 into -1
3.052 * [backup-simplify]: Simplify 1 into 1
3.052 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))) into 0
3.053 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))) into 0
3.054 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.054 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
3.054 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (* 0 (pow y 2))) into 0
3.054 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 4)) (/ 0 (pow y 4))))) into 0
3.054 * [backup-simplify]: Simplify (- 0) into 0
3.055 * [backup-simplify]: Simplify (+ 0 0) into 0
3.055 * [taylor]: Taking taylor expansion of 0 in y
3.055 * [backup-simplify]: Simplify 0 into 0
3.055 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.060 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.061 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.061 * [backup-simplify]: Simplify (- 0) into 0
3.061 * [backup-simplify]: Simplify 0 into 0
3.061 * [backup-simplify]: Simplify 0 into 0
3.061 * [backup-simplify]: Simplify 0 into 0
3.062 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))))) into 0
3.063 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))))) into 0
3.064 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.065 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
3.066 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (+ (* 0 0) (* 0 (pow y 2)))) into 0
3.066 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 4)) (/ 0 (pow y 4))) (* 0 (/ 0 (pow y 4))))) into 0
3.066 * [backup-simplify]: Simplify (- 0) into 0
3.067 * [backup-simplify]: Simplify (+ 0 0) into 0
3.067 * [taylor]: Taking taylor expansion of 0 in y
3.067 * [backup-simplify]: Simplify 0 into 0
3.067 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.068 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.068 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.069 * [backup-simplify]: Simplify (- 0) into 0
3.069 * [backup-simplify]: Simplify 0 into 0
3.069 * [backup-simplify]: Simplify 0 into 0
3.069 * [backup-simplify]: Simplify 0 into 0
3.069 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 x))) 4)) (* -1 (pow (* (/ 1 (/ 1 y)) 1) 4))) into (- (pow x 4) (pow y 4))
3.069 * [backup-simplify]: Simplify (- (pow (/ 1 (- x)) 4.0) (pow (/ 1 (- y)) 4.0)) into (- (/ 1 (pow x 4)) (/ 1 (pow y 4)))
3.069 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in (x y) around 0
3.069 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in y
3.069 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in y
3.069 * [taylor]: Taking taylor expansion of (pow x 4) in y
3.069 * [taylor]: Taking taylor expansion of x in y
3.069 * [backup-simplify]: Simplify x into x
3.070 * [backup-simplify]: Simplify (* x x) into (pow x 2)
3.070 * [backup-simplify]: Simplify (* (pow x 2) (pow x 2)) into (pow x 4)
3.070 * [backup-simplify]: Simplify (/ 1 (pow x 4)) into (/ 1 (pow x 4))
3.070 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
3.070 * [taylor]: Taking taylor expansion of (pow y 4) in y
3.070 * [taylor]: Taking taylor expansion of y in y
3.070 * [backup-simplify]: Simplify 0 into 0
3.070 * [backup-simplify]: Simplify 1 into 1
3.070 * [backup-simplify]: Simplify (* 1 1) into 1
3.070 * [backup-simplify]: Simplify (* 1 1) into 1
3.071 * [backup-simplify]: Simplify (/ 1 1) into 1
3.071 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
3.071 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
3.071 * [taylor]: Taking taylor expansion of (pow x 4) in x
3.071 * [taylor]: Taking taylor expansion of x in x
3.071 * [backup-simplify]: Simplify 0 into 0
3.071 * [backup-simplify]: Simplify 1 into 1
3.071 * [backup-simplify]: Simplify (* 1 1) into 1
3.071 * [backup-simplify]: Simplify (* 1 1) into 1
3.071 * [backup-simplify]: Simplify (/ 1 1) into 1
3.071 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
3.071 * [taylor]: Taking taylor expansion of (pow y 4) in x
3.072 * [taylor]: Taking taylor expansion of y in x
3.072 * [backup-simplify]: Simplify y into y
3.072 * [backup-simplify]: Simplify (* y y) into (pow y 2)
3.072 * [backup-simplify]: Simplify (* (pow y 2) (pow y 2)) into (pow y 4)
3.072 * [backup-simplify]: Simplify (/ 1 (pow y 4)) into (/ 1 (pow y 4))
3.072 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x
3.072 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x
3.072 * [taylor]: Taking taylor expansion of (pow x 4) in x
3.072 * [taylor]: Taking taylor expansion of x in x
3.072 * [backup-simplify]: Simplify 0 into 0
3.072 * [backup-simplify]: Simplify 1 into 1
3.072 * [backup-simplify]: Simplify (* 1 1) into 1
3.072 * [backup-simplify]: Simplify (* 1 1) into 1
3.073 * [backup-simplify]: Simplify (/ 1 1) into 1
3.073 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x
3.073 * [taylor]: Taking taylor expansion of (pow y 4) in x
3.073 * [taylor]: Taking taylor expansion of y in x
3.073 * [backup-simplify]: Simplify y into y
3.073 * [backup-simplify]: Simplify (* y y) into (pow y 2)
3.073 * [backup-simplify]: Simplify (* (pow y 2) (pow y 2)) into (pow y 4)
3.073 * [backup-simplify]: Simplify (/ 1 (pow y 4)) into (/ 1 (pow y 4))
3.073 * [backup-simplify]: Simplify (+ 1 0) into 1
3.073 * [taylor]: Taking taylor expansion of 1 in y
3.073 * [backup-simplify]: Simplify 1 into 1
3.074 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.074 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.075 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.075 * [backup-simplify]: Simplify (+ 0 0) into 0
3.075 * [taylor]: Taking taylor expansion of 0 in y
3.075 * [backup-simplify]: Simplify 0 into 0
3.076 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.076 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.077 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.077 * [backup-simplify]: Simplify (+ 0 0) into 0
3.077 * [taylor]: Taking taylor expansion of 0 in y
3.077 * [backup-simplify]: Simplify 0 into 0
3.077 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
3.078 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
3.079 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.079 * [backup-simplify]: Simplify (+ 0 0) into 0
3.079 * [taylor]: Taking taylor expansion of 0 in y
3.079 * [backup-simplify]: Simplify 0 into 0
3.079 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
3.080 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
3.081 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.081 * [backup-simplify]: Simplify (- (/ 1 (pow y 4))) into (- (/ 1 (pow y 4)))
3.081 * [backup-simplify]: Simplify (+ 0 (- (/ 1 (pow y 4)))) into (- (/ 1 (pow y 4)))
3.081 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 4))) in y
3.081 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y
3.081 * [taylor]: Taking taylor expansion of (pow y 4) in y
3.081 * [taylor]: Taking taylor expansion of y in y
3.081 * [backup-simplify]: Simplify 0 into 0
3.081 * [backup-simplify]: Simplify 1 into 1
3.081 * [backup-simplify]: Simplify (* 1 1) into 1
3.082 * [backup-simplify]: Simplify (* 1 1) into 1
3.082 * [backup-simplify]: Simplify (/ 1 1) into 1
3.082 * [backup-simplify]: Simplify (- 1) into -1
3.082 * [backup-simplify]: Simplify -1 into -1
3.082 * [backup-simplify]: Simplify 1 into 1
3.083 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))) into 0
3.084 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))) into 0
3.084 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.084 * [backup-simplify]: Simplify (+ (* y 0) (* 0 y)) into 0
3.085 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (* 0 (pow y 2))) into 0
3.085 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 4)) (/ 0 (pow y 4))))) into 0
3.085 * [backup-simplify]: Simplify (- 0) into 0
3.085 * [backup-simplify]: Simplify (+ 0 0) into 0
3.085 * [taylor]: Taking taylor expansion of 0 in y
3.085 * [backup-simplify]: Simplify 0 into 0
3.086 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.086 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
3.087 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
3.087 * [backup-simplify]: Simplify (- 0) into 0
3.087 * [backup-simplify]: Simplify 0 into 0
3.087 * [backup-simplify]: Simplify 0 into 0
3.087 * [backup-simplify]: Simplify 0 into 0
3.088 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))))) into 0
3.089 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))))) into 0
3.090 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.090 * [backup-simplify]: Simplify (+ (* y 0) (+ (* 0 0) (* 0 y))) into 0
3.090 * [backup-simplify]: Simplify (+ (* (pow y 2) 0) (+ (* 0 0) (* 0 (pow y 2)))) into 0
3.091 * [backup-simplify]: Simplify (- (+ (* (/ 1 (pow y 4)) (/ 0 (pow y 4))) (* 0 (/ 0 (pow y 4))))) into 0
3.091 * [backup-simplify]: Simplify (- 0) into 0
3.091 * [backup-simplify]: Simplify (+ 0 0) into 0
3.091 * [taylor]: Taking taylor expansion of 0 in y
3.091 * [backup-simplify]: Simplify 0 into 0
3.092 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.092 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
3.093 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
3.093 * [backup-simplify]: Simplify (- 0) into 0
3.093 * [backup-simplify]: Simplify 0 into 0
3.093 * [backup-simplify]: Simplify 0 into 0
3.093 * [backup-simplify]: Simplify 0 into 0
3.093 * [backup-simplify]: Simplify (+ (* 1 (pow (* 1 (/ 1 (/ 1 (- x)))) 4)) (* -1 (pow (* (/ 1 (/ 1 (- y))) 1) 4))) into (- (pow x 4) (pow y 4))
3.093 * * * [progress]: simplifying candidates
3.095 * [simplify]: Simplifying:
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (pow (sqrt x) 4.0) (pow (sqrt x) 4.0) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (pow 1 4.0) (pow x 4.0) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (* (cbrt (pow x 4.0)) (cbrt (pow x 4.0))) (cbrt (pow x 4.0)) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (sqrt (pow x 4.0)) (sqrt (pow x 4.0)) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma 1 (pow x 4.0) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma 1 (pow x 4.0) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma 1 (pow x 4.0) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma 1 (pow x 4.0) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma 1 (pow x 4.0) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma 1 (pow x 4.0) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma 1 (pow x 4.0) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  (fma (- (pow (cbrt y) 4.0)) (pow (* (cbrt y) (cbrt y)) 4.0) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0))))
  (fma (- (pow (sqrt y) 4.0)) (pow (sqrt y) 4.0) (* (pow (sqrt y) 4.0) (pow (sqrt y) 4.0)))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (pow y 4.0) (pow 1 4.0))))
  (fma (- (pow y 4.0)) (pow 1 4.0) (* (pow y 4.0) (pow 1 4.0)))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))))))
  (fma (- (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0))) (* (cbrt (pow y 4.0)) (* (cbrt (pow y 4.0)) (cbrt (pow y 4.0)))))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0)))))
  (fma (- (sqrt (pow y 4.0))) (sqrt (pow y 4.0)) (* (sqrt (pow y 4.0)) (sqrt (pow y 4.0))))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (pow y 4.0) 1)))
  (fma (- (pow y 4.0)) 1 (* (pow y 4.0) 1))
  (fma (pow x (/ 4.0 2)) (pow x (/ 4.0 2)) (- (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2)))))
  (fma (- (pow y (/ 4.0 2))) (pow y (/ 4.0 2)) (* (pow y (/ 4.0 2)) (pow y (/ 4.0 2))))
  (expm1 (- (pow x 4.0) (pow y 4.0)))
  (log1p (- (pow x 4.0) (pow y 4.0)))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (/ (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))
3.098 * * [simplify]: Extracting # 0 : cost  0
3.099 * * [simplify]: Extracting # 1 : cost  0
3.099 * * [simplify]: Extracting # 2 : cost  0
3.100 * * [simplify]: Extracting # 3 : cost  0
3.100 * * [simplify]: Extracting # 4 : cost  0
3.100 * * [simplify]: Extracting # 5 : cost  0
3.101 * * [simplify]: Extracting # 6 : cost  0
3.101 * * [simplify]: Extracting # 7 : cost  0
3.102 * * [simplify]: Extracting # 8 : cost  0
3.102 * * [simplify]: iteration  0 :  152  enodes  (cost  2374 )
3.153 * * [simplify]: Extracting # 0 : cost  0
3.154 * * [simplify]: Extracting # 1 : cost  0
3.154 * * [simplify]: Extracting # 2 : cost  0
3.154 * * [simplify]: Extracting # 3 : cost  0
3.155 * * [simplify]: Extracting # 4 : cost  0
3.155 * * [simplify]: Extracting # 5 : cost  0
3.155 * * [simplify]: iteration  1 :  313  enodes  (cost  1687 )
3.265 * * [simplify]: Extracting # 0 : cost  0
3.266 * * [simplify]: Extracting # 1 : cost  0
3.267 * * [simplify]: Extracting # 2 : cost  0
3.269 * * [simplify]: Extracting # 3 : cost  0
3.276 * * [simplify]: Extracting # 4 : cost  0
3.277 * * [simplify]: iteration  2 :  714  enodes  (cost  1361 )
4.001 * * [simplify]: Extracting # 0 : cost  0
4.007 * * [simplify]: Extracting # 1 : cost  0
4.013 * * [simplify]: Extracting # 2 : cost  0
4.019 * * [simplify]: Extracting # 3 : cost  0
4.022 * * [simplify]: Extracting # 4 : cost  0
4.029 * * [simplify]: Extracting # 5 : cost  0
4.032 * * [simplify]: iteration  3 :  3011  enodes  (cost  1158 )
6.372 * * [simplify]: Extracting # 0 : cost  0
6.379 * * [simplify]: Extracting # 1 : cost  0
6.385 * * [simplify]: Extracting # 2 : cost  0
6.394 * * [simplify]: Extracting # 3 : cost  0
6.410 * * [simplify]: iteration done:  5000  enodes  (cost  934 )
6.411 * [simplify]: Simplified to:
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0))))
  0
  (fma (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0) (- (pow (sqrt y) (* 2 4.0))))
  0
  (- (* (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0)) (pow y 4.0))
  0
  (- (* (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0)) (pow y 4.0))
  0
  (- (* (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0)) (pow y 4.0))
  0
  (- (* (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0)) (pow y 4.0))
  0
  (- (* (pow (* (cbrt x) (cbrt x)) 4.0) (pow (cbrt x) 4.0)) (pow y 4.0))
  0
  (- (pow (sqrt x) (* 2 4.0)) (* (pow (cbrt y) 4.0) (pow (* (cbrt y) (cbrt y)) 4.0)))
  0
  (- (pow (sqrt x) (* 2 4.0)) (pow (sqrt y) (* 2 4.0)))
  0
  (- (pow (sqrt x) (* 2 4.0)) (pow y 4.0))
  0
  (- (pow (sqrt x) (* 2 4.0)) (pow y 4.0))
  0
  (- (pow (sqrt x) (* 2 4.0)) (pow y 4.0))
  0
  (- (pow (sqrt x) (* 2 4.0)) (pow y 4.0))
  0
  (- (pow (sqrt x) (* 2 4.0)) (pow y 4.0))
  0
  (fma (pow (* (cbrt y) (cbrt y)) 4.0) (- (pow (cbrt y) 4.0)) (pow x 4.0))
  0
  (- (pow x 4.0) (pow (sqrt y) (* 2 4.0)))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (fma (pow (* (cbrt y) (cbrt y)) 4.0) (- (pow (cbrt y) 4.0)) (pow x 4.0))
  0
  (- (pow x 4.0) (pow (sqrt y) (* 2 4.0)))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (fma (pow (* (cbrt y) (cbrt y)) 4.0) (- (pow (cbrt y) 4.0)) (pow x 4.0))
  0
  (- (pow x 4.0) (pow (sqrt y) (* 2 4.0)))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (fma (pow (* (cbrt y) (cbrt y)) 4.0) (- (pow (cbrt y) 4.0)) (pow x 4.0))
  0
  (- (pow x 4.0) (pow (sqrt y) (* 2 4.0)))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (fma (pow (* (cbrt y) (cbrt y)) 4.0) (- (pow (cbrt y) 4.0)) (pow x 4.0))
  0
  (- (pow x 4.0) (pow (sqrt y) (* 2 4.0)))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (- (pow x 4.0) (pow y 4.0))
  0
  (expm1 (- (pow x 4.0) (pow y 4.0)))
  (log1p (- (pow x 4.0) (pow y 4.0)))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (- (pow y 4.0))
  (exp (- (pow x 4.0) (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 (- (pow x 4.0) (pow y 4.0)) 3)
  (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))
  (fma (pow y 4.0) (+ (pow x 4.0) (pow y 4.0)) (pow x (* 2 4.0)))
  (- (pow y 4.0))
  (- (pow x (* 2 4.0)) (pow y (* 2 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))
6.413 * * * [progress]: adding candidates to table
6.596 * [progress]: [Phase 3 of 3] Extracting.
6.598 * [simplify]: Simplifying:
  (- (pow x 4.0) (pow y 4.0))
6.598 * * [simplify]: Extracting # 0 : cost  0
6.598 * * [simplify]: Extracting # 1 : cost  0
6.598 * * [simplify]: Extracting # 2 : cost  0
6.598 * * [simplify]: Extracting # 3 : cost  0
6.598 * * [simplify]: Extracting # 4 : cost  0
6.598 * * [simplify]: iteration  0 :  6  enodes  (cost  7 )
6.599 * * [simplify]: Extracting # 0 : cost  0
6.599 * * [simplify]: iteration done:  6  enodes  (cost  7 )
6.599 * [simplify]: Simplified to:
  (- (pow x 4.0) (pow y 4.0))
9.095 * [regime-testing]: Baseline error score: 0.0029887349163156044
9.097 * [regime-testing]: Oracle error score: 0.0029887349163156044
9.097 * [regime-testing]: End program error score: 0.0029887349163156044