13.085 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.038 * * * [progress]: [2/2] Setting up program.
0.040 * [progress]: [Phase 2 of 3] Improving.
0.040 * [simplify]: Simplifying:
  (+ (+ (* x y) (* z t)) (* a b))
0.040 * * [simplify]: Extracting # 0 : cost  0
0.040 * * [simplify]: Extracting # 1 : cost  0
0.040 * * [simplify]: Extracting # 2 : cost  0
0.040 * * [simplify]: Extracting # 3 : cost  0
0.040 * * [simplify]: Extracting # 4 : cost  0
0.040 * * [simplify]: Extracting # 5 : cost  0
0.040 * * [simplify]: iteration  0 :  11  enodes  (cost  11 )
0.042 * * [simplify]: Extracting # 0 : cost  0
0.042 * * [simplify]: Extracting # 1 : cost  0
0.042 * * [simplify]: Extracting # 2 : cost  0
0.042 * * [simplify]: iteration  1 :  18  enodes  (cost  11 )
0.045 * * [simplify]: Extracting # 0 : cost  0
0.045 * * [simplify]: Extracting # 1 : cost  0
0.045 * * [simplify]: Extracting # 2 : cost  0
0.045 * * [simplify]: iteration  2 :  25  enodes  (cost  11 )
0.049 * * [simplify]: Extracting # 0 : cost  0
0.050 * * [simplify]: iteration  3 :  27  enodes  (cost  11 )
0.054 * * [simplify]: Extracting # 0 : cost  0
0.054 * * [simplify]: iteration done:  27  enodes  (cost  11 )
0.054 * [simplify]: Simplified to:
  (+ (+ (* x y) (* z t)) (* a b))
0.054 * * [progress]: iteration 1 / 4
0.054 * * * [progress]: picking best candidate
0.056 * * * * [pick]: Picked  #<alt (λ (x y z t a b) (+ (+ (* x y) (* z t)) (* a b)))>
0.056 * * * [progress]: localizing error
0.065 * * * [progress]: generating rewritten candidates
0.066 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
0.075 * * * [progress]: generating series expansions
0.075 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
0.075 * [backup-simplify]: Simplify (+ (* x y) (* z t)) into (+ (* t z) (* x y))
0.075 * [approximate]: Taking taylor expansion of (+ (* t z) (* x y)) in (x y z t) around 0
0.075 * [taylor]: Taking taylor expansion of (+ (* t z) (* x y)) in t
0.075 * [taylor]: Taking taylor expansion of (* t z) in t
0.075 * [taylor]: Taking taylor expansion of t in t
0.075 * [backup-simplify]: Simplify 0 into 0
0.075 * [backup-simplify]: Simplify 1 into 1
0.075 * [taylor]: Taking taylor expansion of z in t
0.075 * [backup-simplify]: Simplify z into z
0.075 * [taylor]: Taking taylor expansion of (* x y) in t
0.075 * [taylor]: Taking taylor expansion of x in t
0.075 * [backup-simplify]: Simplify x into x
0.075 * [taylor]: Taking taylor expansion of y in t
0.075 * [backup-simplify]: Simplify y into y
0.075 * [taylor]: Taking taylor expansion of (+ (* t z) (* x y)) in z
0.075 * [taylor]: Taking taylor expansion of (* t z) in z
0.075 * [taylor]: Taking taylor expansion of t in z
0.075 * [backup-simplify]: Simplify t into t
0.075 * [taylor]: Taking taylor expansion of z in z
0.075 * [backup-simplify]: Simplify 0 into 0
0.075 * [backup-simplify]: Simplify 1 into 1
0.075 * [taylor]: Taking taylor expansion of (* x y) in z
0.075 * [taylor]: Taking taylor expansion of x in z
0.075 * [backup-simplify]: Simplify x into x
0.075 * [taylor]: Taking taylor expansion of y in z
0.075 * [backup-simplify]: Simplify y into y
0.075 * [taylor]: Taking taylor expansion of (+ (* t z) (* x y)) in y
0.075 * [taylor]: Taking taylor expansion of (* t z) in y
0.075 * [taylor]: Taking taylor expansion of t in y
0.075 * [backup-simplify]: Simplify t into t
0.075 * [taylor]: Taking taylor expansion of z in y
0.075 * [backup-simplify]: Simplify z into z
0.075 * [taylor]: Taking taylor expansion of (* x y) in y
0.075 * [taylor]: Taking taylor expansion of x in y
0.075 * [backup-simplify]: Simplify x into x
0.075 * [taylor]: Taking taylor expansion of y in y
0.075 * [backup-simplify]: Simplify 0 into 0
0.075 * [backup-simplify]: Simplify 1 into 1
0.076 * [taylor]: Taking taylor expansion of (+ (* t z) (* x y)) in x
0.076 * [taylor]: Taking taylor expansion of (* t z) in x
0.076 * [taylor]: Taking taylor expansion of t in x
0.076 * [backup-simplify]: Simplify t into t
0.076 * [taylor]: Taking taylor expansion of z in x
0.076 * [backup-simplify]: Simplify z into z
0.076 * [taylor]: Taking taylor expansion of (* x y) in x
0.076 * [taylor]: Taking taylor expansion of x in x
0.076 * [backup-simplify]: Simplify 0 into 0
0.076 * [backup-simplify]: Simplify 1 into 1
0.076 * [taylor]: Taking taylor expansion of y in x
0.076 * [backup-simplify]: Simplify y into y
0.076 * [taylor]: Taking taylor expansion of (+ (* t z) (* x y)) in x
0.076 * [taylor]: Taking taylor expansion of (* t z) in x
0.076 * [taylor]: Taking taylor expansion of t in x
0.076 * [backup-simplify]: Simplify t into t
0.076 * [taylor]: Taking taylor expansion of z in x
0.076 * [backup-simplify]: Simplify z into z
0.076 * [taylor]: Taking taylor expansion of (* x y) in x
0.076 * [taylor]: Taking taylor expansion of x in x
0.076 * [backup-simplify]: Simplify 0 into 0
0.076 * [backup-simplify]: Simplify 1 into 1
0.076 * [taylor]: Taking taylor expansion of y in x
0.076 * [backup-simplify]: Simplify y into y
0.076 * [backup-simplify]: Simplify (* t z) into (* t z)
0.076 * [backup-simplify]: Simplify (* 0 y) into 0
0.076 * [backup-simplify]: Simplify (+ (* t z) 0) into (* t z)
0.076 * [taylor]: Taking taylor expansion of (* t z) in y
0.076 * [taylor]: Taking taylor expansion of t in y
0.076 * [backup-simplify]: Simplify t into t
0.076 * [taylor]: Taking taylor expansion of z in y
0.076 * [backup-simplify]: Simplify z into z
0.076 * [backup-simplify]: Simplify (* t z) into (* t z)
0.076 * [taylor]: Taking taylor expansion of (* t z) in z
0.076 * [taylor]: Taking taylor expansion of t in z
0.076 * [backup-simplify]: Simplify t into t
0.076 * [taylor]: Taking taylor expansion of z in z
0.076 * [backup-simplify]: Simplify 0 into 0
0.076 * [backup-simplify]: Simplify 1 into 1
0.077 * [backup-simplify]: Simplify (* t 0) into 0
0.077 * [taylor]: Taking taylor expansion of 0 in t
0.077 * [backup-simplify]: Simplify 0 into 0
0.077 * [backup-simplify]: Simplify 0 into 0
0.077 * [backup-simplify]: Simplify (+ (* t 0) (* 0 z)) into 0
0.090 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.090 * [backup-simplify]: Simplify (+ 0 y) into y
0.090 * [taylor]: Taking taylor expansion of y in y
0.090 * [backup-simplify]: Simplify 0 into 0
0.090 * [backup-simplify]: Simplify 1 into 1
0.090 * [taylor]: Taking taylor expansion of 0 in z
0.090 * [backup-simplify]: Simplify 0 into 0
0.090 * [taylor]: Taking taylor expansion of 0 in t
0.090 * [backup-simplify]: Simplify 0 into 0
0.090 * [backup-simplify]: Simplify 0 into 0
0.090 * [backup-simplify]: Simplify (+ (* t 0) (* 0 z)) into 0
0.090 * [taylor]: Taking taylor expansion of 0 in z
0.090 * [backup-simplify]: Simplify 0 into 0
0.090 * [taylor]: Taking taylor expansion of 0 in t
0.091 * [backup-simplify]: Simplify 0 into 0
0.091 * [backup-simplify]: Simplify 0 into 0
0.091 * [backup-simplify]: Simplify (+ (* t 1) (* 0 0)) into t
0.091 * [taylor]: Taking taylor expansion of t in t
0.091 * [backup-simplify]: Simplify 0 into 0
0.091 * [backup-simplify]: Simplify 1 into 1
0.091 * [backup-simplify]: Simplify 0 into 0
0.091 * [backup-simplify]: Simplify 0 into 0
0.092 * [backup-simplify]: Simplify (+ (* t 0) (+ (* 0 0) (* 0 z))) into 0
0.092 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
0.093 * [backup-simplify]: Simplify (+ 0 0) into 0
0.093 * [taylor]: Taking taylor expansion of 0 in y
0.093 * [backup-simplify]: Simplify 0 into 0
0.093 * [taylor]: Taking taylor expansion of 0 in z
0.093 * [backup-simplify]: Simplify 0 into 0
0.093 * [taylor]: Taking taylor expansion of 0 in t
0.093 * [backup-simplify]: Simplify 0 into 0
0.093 * [backup-simplify]: Simplify 0 into 0
0.093 * [backup-simplify]: Simplify 0 into 0
0.093 * [backup-simplify]: Simplify (+ (* (/ 1 x) (/ 1 y)) (* (/ 1 z) (/ 1 t))) into (+ (/ 1 (* t z)) (/ 1 (* x y)))
0.093 * [approximate]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in (x y z t) around 0
0.093 * [taylor]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in t
0.093 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in t
0.093 * [taylor]: Taking taylor expansion of (* t z) in t
0.093 * [taylor]: Taking taylor expansion of t in t
0.093 * [backup-simplify]: Simplify 0 into 0
0.094 * [backup-simplify]: Simplify 1 into 1
0.094 * [taylor]: Taking taylor expansion of z in t
0.094 * [backup-simplify]: Simplify z into z
0.094 * [backup-simplify]: Simplify (* 0 z) into 0
0.094 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 z)) into z
0.094 * [backup-simplify]: Simplify (/ 1 z) into (/ 1 z)
0.094 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in t
0.094 * [taylor]: Taking taylor expansion of (* x y) in t
0.094 * [taylor]: Taking taylor expansion of x in t
0.094 * [backup-simplify]: Simplify x into x
0.094 * [taylor]: Taking taylor expansion of y in t
0.094 * [backup-simplify]: Simplify y into y
0.094 * [backup-simplify]: Simplify (* x y) into (* x y)
0.094 * [backup-simplify]: Simplify (/ 1 (* x y)) into (/ 1 (* x y))
0.094 * [taylor]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in z
0.094 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in z
0.094 * [taylor]: Taking taylor expansion of (* t z) in z
0.094 * [taylor]: Taking taylor expansion of t in z
0.094 * [backup-simplify]: Simplify t into t
0.094 * [taylor]: Taking taylor expansion of z in z
0.095 * [backup-simplify]: Simplify 0 into 0
0.095 * [backup-simplify]: Simplify 1 into 1
0.095 * [backup-simplify]: Simplify (* t 0) into 0
0.095 * [backup-simplify]: Simplify (+ (* t 1) (* 0 0)) into t
0.095 * [backup-simplify]: Simplify (/ 1 t) into (/ 1 t)
0.095 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in z
0.095 * [taylor]: Taking taylor expansion of (* x y) in z
0.095 * [taylor]: Taking taylor expansion of x in z
0.095 * [backup-simplify]: Simplify x into x
0.095 * [taylor]: Taking taylor expansion of y in z
0.095 * [backup-simplify]: Simplify y into y
0.095 * [backup-simplify]: Simplify (* x y) into (* x y)
0.095 * [backup-simplify]: Simplify (/ 1 (* x y)) into (/ 1 (* x y))
0.095 * [taylor]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in y
0.095 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in y
0.095 * [taylor]: Taking taylor expansion of (* t z) in y
0.095 * [taylor]: Taking taylor expansion of t in y
0.095 * [backup-simplify]: Simplify t into t
0.095 * [taylor]: Taking taylor expansion of z in y
0.095 * [backup-simplify]: Simplify z into z
0.096 * [backup-simplify]: Simplify (* t z) into (* t z)
0.096 * [backup-simplify]: Simplify (/ 1 (* t z)) into (/ 1 (* t z))
0.096 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.096 * [taylor]: Taking taylor expansion of (* x y) in y
0.096 * [taylor]: Taking taylor expansion of x in y
0.096 * [backup-simplify]: Simplify x into x
0.096 * [taylor]: Taking taylor expansion of y in y
0.096 * [backup-simplify]: Simplify 0 into 0
0.096 * [backup-simplify]: Simplify 1 into 1
0.096 * [backup-simplify]: Simplify (* x 0) into 0
0.096 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
0.096 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
0.096 * [taylor]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in x
0.096 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in x
0.096 * [taylor]: Taking taylor expansion of (* t z) in x
0.096 * [taylor]: Taking taylor expansion of t in x
0.096 * [backup-simplify]: Simplify t into t
0.096 * [taylor]: Taking taylor expansion of z in x
0.096 * [backup-simplify]: Simplify z into z
0.096 * [backup-simplify]: Simplify (* t z) into (* t z)
0.097 * [backup-simplify]: Simplify (/ 1 (* t z)) into (/ 1 (* t z))
0.097 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.097 * [taylor]: Taking taylor expansion of (* x y) in x
0.097 * [taylor]: Taking taylor expansion of x in x
0.097 * [backup-simplify]: Simplify 0 into 0
0.097 * [backup-simplify]: Simplify 1 into 1
0.097 * [taylor]: Taking taylor expansion of y in x
0.097 * [backup-simplify]: Simplify y into y
0.097 * [backup-simplify]: Simplify (* 0 y) into 0
0.097 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.097 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
0.097 * [taylor]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in x
0.097 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in x
0.097 * [taylor]: Taking taylor expansion of (* t z) in x
0.097 * [taylor]: Taking taylor expansion of t in x
0.097 * [backup-simplify]: Simplify t into t
0.097 * [taylor]: Taking taylor expansion of z in x
0.097 * [backup-simplify]: Simplify z into z
0.097 * [backup-simplify]: Simplify (* t z) into (* t z)
0.098 * [backup-simplify]: Simplify (/ 1 (* t z)) into (/ 1 (* t z))
0.098 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.098 * [taylor]: Taking taylor expansion of (* x y) in x
0.098 * [taylor]: Taking taylor expansion of x in x
0.098 * [backup-simplify]: Simplify 0 into 0
0.098 * [backup-simplify]: Simplify 1 into 1
0.098 * [taylor]: Taking taylor expansion of y in x
0.098 * [backup-simplify]: Simplify y into y
0.098 * [backup-simplify]: Simplify (* 0 y) into 0
0.098 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.098 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
0.098 * [backup-simplify]: Simplify (+ 0 (/ 1 y)) into (/ 1 y)
0.098 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.098 * [taylor]: Taking taylor expansion of y in y
0.098 * [backup-simplify]: Simplify 0 into 0
0.098 * [backup-simplify]: Simplify 1 into 1
0.099 * [backup-simplify]: Simplify (/ 1 1) into 1
0.099 * [taylor]: Taking taylor expansion of 1 in z
0.099 * [backup-simplify]: Simplify 1 into 1
0.100 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
0.100 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
0.100 * [backup-simplify]: Simplify (+ (/ 1 (* t z)) 0) into (/ 1 (* t z))
0.100 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in y
0.100 * [taylor]: Taking taylor expansion of (* t z) in y
0.100 * [taylor]: Taking taylor expansion of t in y
0.100 * [backup-simplify]: Simplify t into t
0.101 * [taylor]: Taking taylor expansion of z in y
0.101 * [backup-simplify]: Simplify z into z
0.101 * [backup-simplify]: Simplify (* t z) into (* t z)
0.101 * [backup-simplify]: Simplify (/ 1 (* t z)) into (/ 1 (* t z))
0.102 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
0.102 * [taylor]: Taking taylor expansion of 0 in z
0.102 * [backup-simplify]: Simplify 0 into 0
0.102 * [taylor]: Taking taylor expansion of 1 in t
0.102 * [backup-simplify]: Simplify 1 into 1
0.102 * [backup-simplify]: Simplify (+ (* t 0) (* 0 z)) into 0
0.102 * [backup-simplify]: Simplify (- (+ (* (/ 1 (* t z)) (/ 0 (* t z))))) into 0
0.103 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 y)))) into 0
0.103 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.104 * [backup-simplify]: Simplify (+ 0 0) into 0
0.104 * [taylor]: Taking taylor expansion of 0 in y
0.104 * [backup-simplify]: Simplify 0 into 0
0.104 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in z
0.104 * [taylor]: Taking taylor expansion of (* t z) in z
0.104 * [taylor]: Taking taylor expansion of t in z
0.104 * [backup-simplify]: Simplify t into t
0.104 * [taylor]: Taking taylor expansion of z in z
0.104 * [backup-simplify]: Simplify 0 into 0
0.104 * [backup-simplify]: Simplify 1 into 1
0.104 * [backup-simplify]: Simplify (* t 0) into 0
0.104 * [backup-simplify]: Simplify (+ (* t 1) (* 0 0)) into t
0.104 * [backup-simplify]: Simplify (/ 1 t) into (/ 1 t)
0.104 * [taylor]: Taking taylor expansion of (/ 1 t) in t
0.104 * [taylor]: Taking taylor expansion of t in t
0.104 * [backup-simplify]: Simplify 0 into 0
0.104 * [backup-simplify]: Simplify 1 into 1
0.105 * [backup-simplify]: Simplify (/ 1 1) into 1
0.105 * [backup-simplify]: Simplify 1 into 1
0.106 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.106 * [taylor]: Taking taylor expansion of 0 in z
0.106 * [backup-simplify]: Simplify 0 into 0
0.106 * [taylor]: Taking taylor expansion of 0 in t
0.106 * [backup-simplify]: Simplify 0 into 0
0.106 * [taylor]: Taking taylor expansion of 0 in t
0.106 * [backup-simplify]: Simplify 0 into 0
0.106 * [backup-simplify]: Simplify 1 into 1
0.106 * [backup-simplify]: Simplify (+ (* t 0) (+ (* 0 0) (* 0 z))) into 0
0.107 * [backup-simplify]: Simplify (- (+ (* (/ 1 (* t z)) (/ 0 (* t z))) (* 0 (/ 0 (* t z))))) into 0
0.108 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
0.108 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.109 * [backup-simplify]: Simplify (+ 0 0) into 0
0.109 * [taylor]: Taking taylor expansion of 0 in y
0.109 * [backup-simplify]: Simplify 0 into 0
0.109 * [taylor]: Taking taylor expansion of 0 in z
0.109 * [backup-simplify]: Simplify 0 into 0
0.109 * [backup-simplify]: Simplify (+ (* t 0) (* 0 z)) into 0
0.109 * [backup-simplify]: Simplify (- (+ (* (/ 1 (* t z)) (/ 0 (* t z))))) into 0
0.109 * [taylor]: Taking taylor expansion of 0 in z
0.109 * [backup-simplify]: Simplify 0 into 0
0.110 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.110 * [taylor]: Taking taylor expansion of 0 in z
0.110 * [backup-simplify]: Simplify 0 into 0
0.110 * [backup-simplify]: Simplify (+ (* t 0) (+ (* 0 1) (* 0 0))) into 0
0.111 * [backup-simplify]: Simplify (- (+ (* (/ 1 t) (/ 0 t)))) into 0
0.111 * [taylor]: Taking taylor expansion of 0 in t
0.111 * [backup-simplify]: Simplify 0 into 0
0.111 * [taylor]: Taking taylor expansion of 0 in t
0.111 * [backup-simplify]: Simplify 0 into 0
0.111 * [taylor]: Taking taylor expansion of 0 in t
0.111 * [backup-simplify]: Simplify 0 into 0
0.111 * [taylor]: Taking taylor expansion of 0 in t
0.111 * [backup-simplify]: Simplify 0 into 0
0.111 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
0.111 * [backup-simplify]: Simplify 0 into 0
0.112 * [backup-simplify]: Simplify 0 into 0
0.112 * [backup-simplify]: Simplify 0 into 0
0.112 * [backup-simplify]: Simplify 0 into 0
0.112 * [backup-simplify]: Simplify (+ (* t 0) (+ (* 0 0) (+ (* 0 0) (* 0 z)))) into 0
0.113 * [backup-simplify]: Simplify (- (+ (* (/ 1 (* t z)) (/ 0 (* t z))) (* 0 (/ 0 (* t z))) (* 0 (/ 0 (* t z))))) into 0
0.114 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))))) into 0
0.115 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.115 * [backup-simplify]: Simplify (+ 0 0) into 0
0.115 * [taylor]: Taking taylor expansion of 0 in y
0.115 * [backup-simplify]: Simplify 0 into 0
0.115 * [taylor]: Taking taylor expansion of 0 in z
0.115 * [backup-simplify]: Simplify 0 into 0
0.115 * [taylor]: Taking taylor expansion of 0 in z
0.115 * [backup-simplify]: Simplify 0 into 0
0.115 * [backup-simplify]: Simplify (+ (* t 0) (+ (* 0 0) (* 0 z))) into 0
0.116 * [backup-simplify]: Simplify (- (+ (* (/ 1 (* t z)) (/ 0 (* t z))) (* 0 (/ 0 (* t z))))) into 0
0.116 * [taylor]: Taking taylor expansion of 0 in z
0.116 * [backup-simplify]: Simplify 0 into 0
0.117 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.117 * [taylor]: Taking taylor expansion of 0 in z
0.117 * [backup-simplify]: Simplify 0 into 0
0.117 * [taylor]: Taking taylor expansion of 0 in t
0.117 * [backup-simplify]: Simplify 0 into 0
0.117 * [taylor]: Taking taylor expansion of 0 in t
0.117 * [backup-simplify]: Simplify 0 into 0
0.117 * [taylor]: Taking taylor expansion of 0 in t
0.117 * [backup-simplify]: Simplify 0 into 0
0.117 * [backup-simplify]: Simplify (+ (* t 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
0.118 * [backup-simplify]: Simplify (- (+ (* (/ 1 t) (/ 0 t)) (* 0 (/ 0 t)))) into 0
0.118 * [taylor]: Taking taylor expansion of 0 in t
0.118 * [backup-simplify]: Simplify 0 into 0
0.118 * [taylor]: Taking taylor expansion of 0 in t
0.118 * [backup-simplify]: Simplify 0 into 0
0.118 * [taylor]: Taking taylor expansion of 0 in t
0.118 * [backup-simplify]: Simplify 0 into 0
0.118 * [taylor]: Taking taylor expansion of 0 in t
0.118 * [backup-simplify]: Simplify 0 into 0
0.118 * [backup-simplify]: Simplify 0 into 0
0.118 * [backup-simplify]: Simplify 0 into 0
0.119 * [backup-simplify]: Simplify (+ (* 1 (* 1 (* 1 (* (/ 1 (/ 1 y)) (/ 1 (/ 1 x)))))) (* 1 (* (/ 1 (/ 1 t)) (* (/ 1 (/ 1 z)) (* 1 1))))) into (+ (* t z) (* x y))
0.119 * [backup-simplify]: Simplify (+ (* (/ 1 (- x)) (/ 1 (- y))) (* (/ 1 (- z)) (/ 1 (- t)))) into (+ (/ 1 (* t z)) (/ 1 (* x y)))
0.119 * [approximate]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in (x y z t) around 0
0.119 * [taylor]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in t
0.119 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in t
0.119 * [taylor]: Taking taylor expansion of (* t z) in t
0.119 * [taylor]: Taking taylor expansion of t in t
0.119 * [backup-simplify]: Simplify 0 into 0
0.119 * [backup-simplify]: Simplify 1 into 1
0.119 * [taylor]: Taking taylor expansion of z in t
0.119 * [backup-simplify]: Simplify z into z
0.119 * [backup-simplify]: Simplify (* 0 z) into 0
0.120 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 z)) into z
0.120 * [backup-simplify]: Simplify (/ 1 z) into (/ 1 z)
0.120 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in t
0.120 * [taylor]: Taking taylor expansion of (* x y) in t
0.120 * [taylor]: Taking taylor expansion of x in t
0.120 * [backup-simplify]: Simplify x into x
0.120 * [taylor]: Taking taylor expansion of y in t
0.120 * [backup-simplify]: Simplify y into y
0.120 * [backup-simplify]: Simplify (* x y) into (* x y)
0.120 * [backup-simplify]: Simplify (/ 1 (* x y)) into (/ 1 (* x y))
0.120 * [taylor]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in z
0.120 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in z
0.120 * [taylor]: Taking taylor expansion of (* t z) in z
0.120 * [taylor]: Taking taylor expansion of t in z
0.120 * [backup-simplify]: Simplify t into t
0.120 * [taylor]: Taking taylor expansion of z in z
0.120 * [backup-simplify]: Simplify 0 into 0
0.120 * [backup-simplify]: Simplify 1 into 1
0.121 * [backup-simplify]: Simplify (* t 0) into 0
0.121 * [backup-simplify]: Simplify (+ (* t 1) (* 0 0)) into t
0.121 * [backup-simplify]: Simplify (/ 1 t) into (/ 1 t)
0.121 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in z
0.121 * [taylor]: Taking taylor expansion of (* x y) in z
0.121 * [taylor]: Taking taylor expansion of x in z
0.121 * [backup-simplify]: Simplify x into x
0.121 * [taylor]: Taking taylor expansion of y in z
0.121 * [backup-simplify]: Simplify y into y
0.121 * [backup-simplify]: Simplify (* x y) into (* x y)
0.121 * [backup-simplify]: Simplify (/ 1 (* x y)) into (/ 1 (* x y))
0.121 * [taylor]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in y
0.121 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in y
0.121 * [taylor]: Taking taylor expansion of (* t z) in y
0.121 * [taylor]: Taking taylor expansion of t in y
0.121 * [backup-simplify]: Simplify t into t
0.121 * [taylor]: Taking taylor expansion of z in y
0.121 * [backup-simplify]: Simplify z into z
0.121 * [backup-simplify]: Simplify (* t z) into (* t z)
0.122 * [backup-simplify]: Simplify (/ 1 (* t z)) into (/ 1 (* t z))
0.122 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in y
0.122 * [taylor]: Taking taylor expansion of (* x y) in y
0.122 * [taylor]: Taking taylor expansion of x in y
0.122 * [backup-simplify]: Simplify x into x
0.122 * [taylor]: Taking taylor expansion of y in y
0.122 * [backup-simplify]: Simplify 0 into 0
0.122 * [backup-simplify]: Simplify 1 into 1
0.122 * [backup-simplify]: Simplify (* x 0) into 0
0.122 * [backup-simplify]: Simplify (+ (* x 1) (* 0 0)) into x
0.122 * [backup-simplify]: Simplify (/ 1 x) into (/ 1 x)
0.122 * [taylor]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in x
0.122 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in x
0.122 * [taylor]: Taking taylor expansion of (* t z) in x
0.122 * [taylor]: Taking taylor expansion of t in x
0.122 * [backup-simplify]: Simplify t into t
0.122 * [taylor]: Taking taylor expansion of z in x
0.122 * [backup-simplify]: Simplify z into z
0.122 * [backup-simplify]: Simplify (* t z) into (* t z)
0.123 * [backup-simplify]: Simplify (/ 1 (* t z)) into (/ 1 (* t z))
0.123 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.123 * [taylor]: Taking taylor expansion of (* x y) in x
0.123 * [taylor]: Taking taylor expansion of x in x
0.123 * [backup-simplify]: Simplify 0 into 0
0.123 * [backup-simplify]: Simplify 1 into 1
0.123 * [taylor]: Taking taylor expansion of y in x
0.123 * [backup-simplify]: Simplify y into y
0.123 * [backup-simplify]: Simplify (* 0 y) into 0
0.123 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.123 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
0.123 * [taylor]: Taking taylor expansion of (+ (/ 1 (* t z)) (/ 1 (* x y))) in x
0.123 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in x
0.123 * [taylor]: Taking taylor expansion of (* t z) in x
0.123 * [taylor]: Taking taylor expansion of t in x
0.123 * [backup-simplify]: Simplify t into t
0.123 * [taylor]: Taking taylor expansion of z in x
0.123 * [backup-simplify]: Simplify z into z
0.123 * [backup-simplify]: Simplify (* t z) into (* t z)
0.123 * [backup-simplify]: Simplify (/ 1 (* t z)) into (/ 1 (* t z))
0.124 * [taylor]: Taking taylor expansion of (/ 1 (* x y)) in x
0.124 * [taylor]: Taking taylor expansion of (* x y) in x
0.124 * [taylor]: Taking taylor expansion of x in x
0.124 * [backup-simplify]: Simplify 0 into 0
0.124 * [backup-simplify]: Simplify 1 into 1
0.124 * [taylor]: Taking taylor expansion of y in x
0.124 * [backup-simplify]: Simplify y into y
0.124 * [backup-simplify]: Simplify (* 0 y) into 0
0.124 * [backup-simplify]: Simplify (+ (* 0 0) (* 1 y)) into y
0.124 * [backup-simplify]: Simplify (/ 1 y) into (/ 1 y)
0.124 * [backup-simplify]: Simplify (+ 0 (/ 1 y)) into (/ 1 y)
0.124 * [taylor]: Taking taylor expansion of (/ 1 y) in y
0.124 * [taylor]: Taking taylor expansion of y in y
0.124 * [backup-simplify]: Simplify 0 into 0
0.124 * [backup-simplify]: Simplify 1 into 1
0.125 * [backup-simplify]: Simplify (/ 1 1) into 1
0.125 * [taylor]: Taking taylor expansion of 1 in z
0.125 * [backup-simplify]: Simplify 1 into 1
0.125 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (* 0 y))) into 0
0.126 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)))) into 0
0.126 * [backup-simplify]: Simplify (+ (/ 1 (* t z)) 0) into (/ 1 (* t z))
0.126 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in y
0.126 * [taylor]: Taking taylor expansion of (* t z) in y
0.126 * [taylor]: Taking taylor expansion of t in y
0.126 * [backup-simplify]: Simplify t into t
0.126 * [taylor]: Taking taylor expansion of z in y
0.126 * [backup-simplify]: Simplify z into z
0.126 * [backup-simplify]: Simplify (* t z) into (* t z)
0.126 * [backup-simplify]: Simplify (/ 1 (* t z)) into (/ 1 (* t z))
0.127 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
0.127 * [taylor]: Taking taylor expansion of 0 in z
0.127 * [backup-simplify]: Simplify 0 into 0
0.127 * [taylor]: Taking taylor expansion of 1 in t
0.127 * [backup-simplify]: Simplify 1 into 1
0.127 * [backup-simplify]: Simplify (+ (* t 0) (* 0 z)) into 0
0.127 * [backup-simplify]: Simplify (- (+ (* (/ 1 (* t z)) (/ 0 (* t z))))) into 0
0.128 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (* 0 y)))) into 0
0.128 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.129 * [backup-simplify]: Simplify (+ 0 0) into 0
0.129 * [taylor]: Taking taylor expansion of 0 in y
0.129 * [backup-simplify]: Simplify 0 into 0
0.129 * [taylor]: Taking taylor expansion of (/ 1 (* t z)) in z
0.129 * [taylor]: Taking taylor expansion of (* t z) in z
0.129 * [taylor]: Taking taylor expansion of t in z
0.129 * [backup-simplify]: Simplify t into t
0.129 * [taylor]: Taking taylor expansion of z in z
0.129 * [backup-simplify]: Simplify 0 into 0
0.129 * [backup-simplify]: Simplify 1 into 1
0.129 * [backup-simplify]: Simplify (* t 0) into 0
0.129 * [backup-simplify]: Simplify (+ (* t 1) (* 0 0)) into t
0.129 * [backup-simplify]: Simplify (/ 1 t) into (/ 1 t)
0.129 * [taylor]: Taking taylor expansion of (/ 1 t) in t
0.129 * [taylor]: Taking taylor expansion of t in t
0.129 * [backup-simplify]: Simplify 0 into 0
0.129 * [backup-simplify]: Simplify 1 into 1
0.130 * [backup-simplify]: Simplify (/ 1 1) into 1
0.130 * [backup-simplify]: Simplify 1 into 1
0.131 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.131 * [taylor]: Taking taylor expansion of 0 in z
0.131 * [backup-simplify]: Simplify 0 into 0
0.131 * [taylor]: Taking taylor expansion of 0 in t
0.131 * [backup-simplify]: Simplify 0 into 0
0.131 * [taylor]: Taking taylor expansion of 0 in t
0.131 * [backup-simplify]: Simplify 0 into 0
0.131 * [backup-simplify]: Simplify 1 into 1
0.131 * [backup-simplify]: Simplify (+ (* t 0) (+ (* 0 0) (* 0 z))) into 0
0.131 * [backup-simplify]: Simplify (- (+ (* (/ 1 (* t z)) (/ 0 (* t z))) (* 0 (/ 0 (* t z))))) into 0
0.133 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 y))))) into 0
0.133 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.133 * [backup-simplify]: Simplify (+ 0 0) into 0
0.133 * [taylor]: Taking taylor expansion of 0 in y
0.133 * [backup-simplify]: Simplify 0 into 0
0.133 * [taylor]: Taking taylor expansion of 0 in z
0.133 * [backup-simplify]: Simplify 0 into 0
0.133 * [backup-simplify]: Simplify (+ (* t 0) (* 0 z)) into 0
0.134 * [backup-simplify]: Simplify (- (+ (* (/ 1 (* t z)) (/ 0 (* t z))))) into 0
0.134 * [taylor]: Taking taylor expansion of 0 in z
0.134 * [backup-simplify]: Simplify 0 into 0
0.134 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.134 * [taylor]: Taking taylor expansion of 0 in z
0.134 * [backup-simplify]: Simplify 0 into 0
0.135 * [backup-simplify]: Simplify (+ (* t 0) (+ (* 0 1) (* 0 0))) into 0
0.135 * [backup-simplify]: Simplify (- (+ (* (/ 1 t) (/ 0 t)))) into 0
0.135 * [taylor]: Taking taylor expansion of 0 in t
0.135 * [backup-simplify]: Simplify 0 into 0
0.135 * [taylor]: Taking taylor expansion of 0 in t
0.135 * [backup-simplify]: Simplify 0 into 0
0.135 * [taylor]: Taking taylor expansion of 0 in t
0.135 * [backup-simplify]: Simplify 0 into 0
0.135 * [taylor]: Taking taylor expansion of 0 in t
0.135 * [backup-simplify]: Simplify 0 into 0
0.136 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
0.136 * [backup-simplify]: Simplify 0 into 0
0.136 * [backup-simplify]: Simplify 0 into 0
0.136 * [backup-simplify]: Simplify 0 into 0
0.136 * [backup-simplify]: Simplify 0 into 0
0.137 * [backup-simplify]: Simplify (+ (* t 0) (+ (* 0 0) (+ (* 0 0) (* 0 z)))) into 0
0.137 * [backup-simplify]: Simplify (- (+ (* (/ 1 (* t z)) (/ 0 (* t z))) (* 0 (/ 0 (* t z))) (* 0 (/ 0 (* t z))))) into 0
0.139 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 y)))))) into 0
0.139 * [backup-simplify]: Simplify (- (+ (* (/ 1 y) (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)) (* 0 (/ 0 y)))) into 0
0.140 * [backup-simplify]: Simplify (+ 0 0) into 0
0.140 * [taylor]: Taking taylor expansion of 0 in y
0.140 * [backup-simplify]: Simplify 0 into 0
0.140 * [taylor]: Taking taylor expansion of 0 in z
0.140 * [backup-simplify]: Simplify 0 into 0
0.140 * [taylor]: Taking taylor expansion of 0 in z
0.140 * [backup-simplify]: Simplify 0 into 0
0.140 * [backup-simplify]: Simplify (+ (* t 0) (+ (* 0 0) (* 0 z))) into 0
0.141 * [backup-simplify]: Simplify (- (+ (* (/ 1 (* t z)) (/ 0 (* t z))) (* 0 (/ 0 (* t z))))) into 0
0.141 * [taylor]: Taking taylor expansion of 0 in z
0.141 * [backup-simplify]: Simplify 0 into 0
0.141 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.141 * [taylor]: Taking taylor expansion of 0 in z
0.141 * [backup-simplify]: Simplify 0 into 0
0.141 * [taylor]: Taking taylor expansion of 0 in t
0.141 * [backup-simplify]: Simplify 0 into 0
0.142 * [taylor]: Taking taylor expansion of 0 in t
0.142 * [backup-simplify]: Simplify 0 into 0
0.142 * [taylor]: Taking taylor expansion of 0 in t
0.142 * [backup-simplify]: Simplify 0 into 0
0.142 * [backup-simplify]: Simplify (+ (* t 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
0.142 * [backup-simplify]: Simplify (- (+ (* (/ 1 t) (/ 0 t)) (* 0 (/ 0 t)))) into 0
0.143 * [taylor]: Taking taylor expansion of 0 in t
0.143 * [backup-simplify]: Simplify 0 into 0
0.143 * [taylor]: Taking taylor expansion of 0 in t
0.143 * [backup-simplify]: Simplify 0 into 0
0.143 * [taylor]: Taking taylor expansion of 0 in t
0.143 * [backup-simplify]: Simplify 0 into 0
0.143 * [taylor]: Taking taylor expansion of 0 in t
0.143 * [backup-simplify]: Simplify 0 into 0
0.143 * [backup-simplify]: Simplify 0 into 0
0.143 * [backup-simplify]: Simplify 0 into 0
0.144 * [backup-simplify]: Simplify (+ (* 1 (* 1 (* 1 (* (/ 1 (/ 1 (- y))) (/ 1 (/ 1 (- x))))))) (* 1 (* (/ 1 (/ 1 (- t))) (* (/ 1 (/ 1 (- z))) (* 1 1))))) into (+ (* t z) (* x y))
0.144 * * * [progress]: simplifying candidates
0.144 * [simplify]: Simplifying:
  (* (exp (* x y)) (exp (* z t)))
  (log (+ (* x y) (* z t)))
  (exp (+ (* x y) (* z t)))
  (* (cbrt (+ (* x y) (* z t))) (cbrt (+ (* x y) (* z t))))
  (cbrt (+ (* x y) (* z t)))
  (* (* (+ (* x y) (* z t)) (+ (* x y) (* z t))) (+ (* x y) (* z t)))
  (sqrt (+ (* x y) (* z t)))
  (sqrt (+ (* x y) (* z t)))
  (+ (pow (* x y) 3) (pow (* z t) 3))
  (+ (* (* x y) (* x y)) (- (* (* z t) (* z t)) (* (* x y) (* z t))))
  (- (* (* x y) (* x y)) (* (* z t) (* z t)))
  (- (* x y) (* z t))
  0
  (+ (* t z) (* x y))
  (+ (* t z) (* x y))
0.145 * * [simplify]: Extracting # 0 : cost  0
0.145 * * [simplify]: Extracting # 1 : cost  0
0.145 * * [simplify]: Extracting # 2 : cost  0
0.145 * * [simplify]: Extracting # 3 : cost  0
0.145 * * [simplify]: Extracting # 4 : cost  0
0.145 * * [simplify]: Extracting # 5 : cost  0
0.145 * * [simplify]: iteration  0 :  31  enodes  (cost  160 )
0.157 * * [simplify]: Extracting # 0 : cost  0
0.157 * * [simplify]: Extracting # 1 : cost  0
0.157 * * [simplify]: Extracting # 2 : cost  0
0.157 * * [simplify]: Extracting # 3 : cost  0
0.158 * * [simplify]: iteration  1 :  101  enodes  (cost  155 )
0.202 * * [simplify]: Extracting # 0 : cost  0
0.203 * * [simplify]: Extracting # 1 : cost  0
0.203 * * [simplify]: Extracting # 2 : cost  0
0.204 * * [simplify]: Extracting # 3 : cost  0
0.204 * * [simplify]: Extracting # 4 : cost  0
0.205 * * [simplify]: Extracting # 5 : cost  0
0.205 * * [simplify]: Extracting # 6 : cost  0
0.206 * * [simplify]: iteration  2 :  343  enodes  (cost  141 )
0.421 * * [simplify]: Extracting # 0 : cost  0
0.422 * * [simplify]: Extracting # 1 : cost  0
0.423 * * [simplify]: Extracting # 2 : cost  0
0.424 * * [simplify]: Extracting # 3 : cost  0
0.424 * * [simplify]: Extracting # 4 : cost  0
0.425 * * [simplify]: iteration  3 :  931  enodes  (cost  141 )
1.210 * * [simplify]: Extracting # 0 : cost  0
1.215 * * [simplify]: Extracting # 1 : cost  0
1.219 * * [simplify]: Extracting # 2 : cost  0
1.223 * * [simplify]: Extracting # 3 : cost  0
1.227 * * [simplify]: Extracting # 4 : cost  0
1.231 * * [simplify]: iteration  4 :  2526  enodes  (cost  141 )
2.962 * * [simplify]: Extracting # 0 : cost  0
2.971 * * [simplify]: Extracting # 1 : cost  0
2.979 * * [simplify]: Extracting # 2 : cost  0
2.985 * * [simplify]: Extracting # 3 : cost  0
2.994 * * [simplify]: Extracting # 4 : cost  0
3.007 * * [simplify]: iteration done:  5000  enodes  (cost  141 )
3.008 * [simplify]: Simplified to:
  (exp (+ (* x y) (* z t)))
  (log (+ (* x y) (* z t)))
  (exp (+ (* x y) (* z t)))
  (* (cbrt (+ (* x y) (* z t))) (cbrt (+ (* x y) (* z t))))
  (cbrt (+ (* x y) (* z t)))
  (pow (+ (* t z) (* x y)) 3)
  (sqrt (+ (* x y) (* z t)))
  (sqrt (+ (* x y) (* z t)))
  (+ (pow (* x y) 3) (pow (* z t) 3))
  (+ (* (* x y) (* x y)) (* (* t z) (- (* t z) (* x y))))
  (- (* (* x y) (* x y)) (* (* z t) (* z t)))
  (- (* x y) (* z t))
  0
  (+ (* t z) (* x y))
  (+ (* t z) (* x y))
3.008 * * * [progress]: adding candidates to table
3.072 * [progress]: [Phase 3 of 3] Extracting.
3.075 * [simplify]: Simplifying:
  (+ (+ (* x y) (* z t)) (* a b))
3.075 * * [simplify]: Extracting # 0 : cost  0
3.075 * * [simplify]: Extracting # 1 : cost  0
3.076 * * [simplify]: Extracting # 2 : cost  0
3.076 * * [simplify]: Extracting # 3 : cost  0
3.076 * * [simplify]: Extracting # 4 : cost  0
3.076 * * [simplify]: Extracting # 5 : cost  0
3.076 * * [simplify]: iteration  0 :  11  enodes  (cost  11 )
3.077 * * [simplify]: Extracting # 0 : cost  0
3.077 * * [simplify]: iteration  1 :  16  enodes  (cost  11 )
3.078 * * [simplify]: Extracting # 0 : cost  0
3.078 * * [simplify]: iteration done:  16  enodes  (cost  11 )
3.078 * [simplify]: Simplified to:
  (+ (+ (* x y) (* z t)) (* a b))
5.201 * [regime-testing]: End program error score: 0.020721951181668145