17.068 * [progress]: [Phase 1 of 3] Setting up.
0.002 * * * [progress]: [1/2] Preparing points
0.021 * * * [progress]: [2/2] Setting up program.
0.023 * [progress]: [Phase 2 of 3] Improving.
0.023 * * * * [progress]: [ 1 / 1 ] simplifiying candidate #<alt (λ (x) (* x (- 1.0 (* x 0.5))))>
0.023 * [simplify]: Simplifying:
  (* x (- 1.0 (* x 0.5)))
0.023 * * [simplify]: iteration 0: 6 enodes
0.025 * * [simplify]: iteration 1: 10 enodes
0.027 * * [simplify]: iteration 2: 23 enodes
0.033 * * [simplify]: iteration 3: 38 enodes
0.042 * * [simplify]: iteration 4: 44 enodes
0.050 * * [simplify]: iteration complete: 44 enodes
0.050 * * [simplify]: Extracting #0: cost 1 inf + 0
0.050 * * [simplify]: Extracting #1: cost 6 inf + 0
0.050 * * [simplify]: Extracting #2: cost 13 inf + 1
0.050 * * [simplify]: Extracting #3: cost 7 inf + 168
0.051 * * [simplify]: Extracting #4: cost 0 inf + 783
0.051 * [simplify]: Simplified to:
  (* (- 1.0 (* x 0.5)) x)
0.051 * * [progress]: iteration 1 / 4
0.051 * * * [progress]: picking best candidate
0.053 * * * * [pick]: Picked  #<alt (λ (x) (* x (- 1.0 (* x 0.5))))>
0.053 * * * [progress]: localizing error
0.060 * * * [progress]: generating rewritten candidates
0.061 * * * * [progress]: [ 1 / 1 ] rewriting at (2)
0.073 * * * [progress]: generating series expansions
0.073 * * * * [progress]: [ 1 / 1 ] generating series at (2)
0.073 * [backup-simplify]: Simplify (* x (- 1.0 (* x 0.5))) into (* x (- 1.0 (* 0.5 x)))
0.073 * [approximate]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in (x) around 0
0.073 * [taylor]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in x
0.073 * [taylor]: Taking taylor expansion of x in x
0.073 * [backup-simplify]: Simplify 0 into 0
0.073 * [backup-simplify]: Simplify 1 into 1
0.073 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 x)) in x
0.073 * [taylor]: Taking taylor expansion of 1.0 in x
0.073 * [backup-simplify]: Simplify 1.0 into 1.0
0.073 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.073 * [taylor]: Taking taylor expansion of 0.5 in x
0.073 * [backup-simplify]: Simplify 0.5 into 0.5
0.073 * [taylor]: Taking taylor expansion of x in x
0.073 * [backup-simplify]: Simplify 0 into 0
0.073 * [backup-simplify]: Simplify 1 into 1
0.073 * [taylor]: Taking taylor expansion of (* x (- 1.0 (* 0.5 x))) in x
0.073 * [taylor]: Taking taylor expansion of x in x
0.073 * [backup-simplify]: Simplify 0 into 0
0.073 * [backup-simplify]: Simplify 1 into 1
0.073 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 x)) in x
0.073 * [taylor]: Taking taylor expansion of 1.0 in x
0.073 * [backup-simplify]: Simplify 1.0 into 1.0
0.073 * [taylor]: Taking taylor expansion of (* 0.5 x) in x
0.073 * [taylor]: Taking taylor expansion of 0.5 in x
0.073 * [backup-simplify]: Simplify 0.5 into 0.5
0.073 * [taylor]: Taking taylor expansion of x in x
0.073 * [backup-simplify]: Simplify 0 into 0
0.073 * [backup-simplify]: Simplify 1 into 1
0.074 * [backup-simplify]: Simplify (* 0.5 0) into 0
0.074 * [backup-simplify]: Simplify (- 0) into 0
0.074 * [backup-simplify]: Simplify (+ 1.0 0) into 1.0
0.075 * [backup-simplify]: Simplify (* 0 1.0) into 0
0.075 * [backup-simplify]: Simplify 0 into 0
0.075 * [backup-simplify]: Simplify (+ (* 0.5 1) (* 0 0)) into 0.5
0.076 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
0.076 * [backup-simplify]: Simplify (+ 0 (- 0.5)) into (- 0.5)
0.077 * [backup-simplify]: Simplify (+ (* 0 (- 0.5)) (* 1 1.0)) into 1.0
0.077 * [backup-simplify]: Simplify 1.0 into 1.0
0.078 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 1) (* 0 0))) into 0
0.078 * [backup-simplify]: Simplify (- 0) into 0
0.078 * [backup-simplify]: Simplify (+ 0 0) into 0
0.081 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 (- 0.5)) (* 0 1.0))) into (- 0.5)
0.081 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
0.082 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))) into 0
0.082 * [backup-simplify]: Simplify (- 0) into 0
0.083 * [backup-simplify]: Simplify (+ 0 0) into 0
0.084 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 (- 0.5)) (* 0 1.0)))) into 0
0.084 * [backup-simplify]: Simplify 0 into 0
0.085 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))) into 0
0.086 * [backup-simplify]: Simplify (- 0) into 0
0.086 * [backup-simplify]: Simplify (+ 0 0) into 0
0.088 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 (- 0.5)) (* 0 1.0))))) into 0
0.088 * [backup-simplify]: Simplify 0 into 0
0.089 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))) into 0
0.089 * [backup-simplify]: Simplify (- 0) into 0
0.089 * [backup-simplify]: Simplify (+ 0 0) into 0
0.091 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- 0.5)) (* 0 1.0)))))) into 0
0.091 * [backup-simplify]: Simplify 0 into 0
0.092 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))))) into 0
0.092 * [backup-simplify]: Simplify (- 0) into 0
0.092 * [backup-simplify]: Simplify (+ 0 0) into 0
0.093 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- 0.5)) (* 0 1.0))))))) into 0
0.093 * [backup-simplify]: Simplify 0 into 0
0.094 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0)))))))) into 0
0.095 * [backup-simplify]: Simplify (- 0) into 0
0.095 * [backup-simplify]: Simplify (+ 0 0) into 0
0.096 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- 0.5)) (* 0 1.0)))))))) into 0
0.096 * [backup-simplify]: Simplify 0 into 0
0.097 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1) (* 0 0))))))))) into 0
0.097 * [backup-simplify]: Simplify (- 0) into 0
0.098 * [backup-simplify]: Simplify (+ 0 0) into 0
0.099 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 (- 0.5)) (* 0 1.0))))))))) into 0
0.099 * [backup-simplify]: Simplify 0 into 0
0.100 * [backup-simplify]: Simplify (+ (* (- 0.5) (pow x 2)) (* 1.0 x)) into (- (* 1.0 x) (* 0.5 (pow x 2)))
0.100 * [backup-simplify]: Simplify (* (/ 1 x) (- 1.0 (* (/ 1 x) 0.5))) into (/ (- 1.0 (* 0.5 (/ 1 x))) x)
0.100 * [approximate]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in (x) around 0
0.100 * [taylor]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in x
0.100 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 x))) in x
0.100 * [taylor]: Taking taylor expansion of 1.0 in x
0.100 * [backup-simplify]: Simplify 1.0 into 1.0
0.100 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.100 * [taylor]: Taking taylor expansion of 0.5 in x
0.100 * [backup-simplify]: Simplify 0.5 into 0.5
0.100 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.100 * [taylor]: Taking taylor expansion of x in x
0.100 * [backup-simplify]: Simplify 0 into 0
0.100 * [backup-simplify]: Simplify 1 into 1
0.100 * [backup-simplify]: Simplify (/ 1 1) into 1
0.100 * [taylor]: Taking taylor expansion of x in x
0.100 * [backup-simplify]: Simplify 0 into 0
0.100 * [backup-simplify]: Simplify 1 into 1
0.100 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
0.103 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
0.104 * [backup-simplify]: Simplify (+ 0 (- 0.5)) into (- 0.5)
0.104 * [backup-simplify]: Simplify (/ (- 0.5) 1) into -0.5
0.104 * [taylor]: Taking taylor expansion of (/ (- 1.0 (* 0.5 (/ 1 x))) x) in x
0.105 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 x))) in x
0.105 * [taylor]: Taking taylor expansion of 1.0 in x
0.105 * [backup-simplify]: Simplify 1.0 into 1.0
0.105 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.105 * [taylor]: Taking taylor expansion of 0.5 in x
0.105 * [backup-simplify]: Simplify 0.5 into 0.5
0.105 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.105 * [taylor]: Taking taylor expansion of x in x
0.105 * [backup-simplify]: Simplify 0 into 0
0.105 * [backup-simplify]: Simplify 1 into 1
0.105 * [backup-simplify]: Simplify (/ 1 1) into 1
0.105 * [taylor]: Taking taylor expansion of x in x
0.105 * [backup-simplify]: Simplify 0 into 0
0.105 * [backup-simplify]: Simplify 1 into 1
0.105 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
0.105 * [backup-simplify]: Simplify (- 0.5) into (- 0.5)
0.106 * [backup-simplify]: Simplify (+ 0 (- 0.5)) into (- 0.5)
0.107 * [backup-simplify]: Simplify (/ (- 0.5) 1) into -0.5
0.107 * [backup-simplify]: Simplify -0.5 into -0.5
0.107 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
0.108 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
0.108 * [backup-simplify]: Simplify (- 0) into 0
0.108 * [backup-simplify]: Simplify (+ 1.0 0) into 1.0
0.109 * [backup-simplify]: Simplify (- (/ 1.0 1) (+ (* -0.5 (/ 0 1)))) into 1.0
0.109 * [backup-simplify]: Simplify 1.0 into 1.0
0.110 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.111 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
0.111 * [backup-simplify]: Simplify (- 0) into 0
0.111 * [backup-simplify]: Simplify (+ 0 0) into 0
0.112 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* -0.5 (/ 0 1)) (* 1.0 (/ 0 1)))) into 0
0.112 * [backup-simplify]: Simplify 0 into 0
0.112 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.113 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
0.113 * [backup-simplify]: Simplify (- 0) into 0
0.113 * [backup-simplify]: Simplify (+ 0 0) into 0
0.115 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* -0.5 (/ 0 1)) (* 1.0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.115 * [backup-simplify]: Simplify 0 into 0
0.116 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.117 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
0.117 * [backup-simplify]: Simplify (- 0) into 0
0.117 * [backup-simplify]: Simplify (+ 0 0) into 0
0.119 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* -0.5 (/ 0 1)) (* 1.0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.119 * [backup-simplify]: Simplify 0 into 0
0.120 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.121 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))) into 0
0.122 * [backup-simplify]: Simplify (- 0) into 0
0.122 * [backup-simplify]: Simplify (+ 0 0) into 0
0.123 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* -0.5 (/ 0 1)) (* 1.0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.123 * [backup-simplify]: Simplify 0 into 0
0.125 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.126 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))))) into 0
0.126 * [backup-simplify]: Simplify (- 0) into 0
0.127 * [backup-simplify]: Simplify (+ 0 0) into 0
0.128 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* -0.5 (/ 0 1)) (* 1.0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.128 * [backup-simplify]: Simplify 0 into 0
0.129 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.131 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))))) into 0
0.132 * [backup-simplify]: Simplify (- 0) into 0
0.132 * [backup-simplify]: Simplify (+ 0 0) into 0
0.133 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* -0.5 (/ 0 1)) (* 1.0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.133 * [backup-simplify]: Simplify 0 into 0
0.134 * [backup-simplify]: Simplify (+ (* 1.0 (/ 1 (/ 1 x))) (* -0.5 (pow (/ 1 (/ 1 x)) 2))) into (- (* 1.0 x) (* 0.5 (pow x 2)))
0.134 * [backup-simplify]: Simplify (* (/ 1 (- x)) (- 1.0 (* (/ 1 (- x)) 0.5))) into (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x))
0.134 * [approximate]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in (x) around 0
0.134 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in x
0.134 * [taylor]: Taking taylor expansion of -1 in x
0.134 * [backup-simplify]: Simplify -1 into -1
0.134 * [taylor]: Taking taylor expansion of (/ (+ (* 0.5 (/ 1 x)) 1.0) x) in x
0.134 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) 1.0) in x
0.134 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.134 * [taylor]: Taking taylor expansion of 0.5 in x
0.134 * [backup-simplify]: Simplify 0.5 into 0.5
0.134 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.134 * [taylor]: Taking taylor expansion of x in x
0.134 * [backup-simplify]: Simplify 0 into 0
0.134 * [backup-simplify]: Simplify 1 into 1
0.135 * [backup-simplify]: Simplify (/ 1 1) into 1
0.135 * [taylor]: Taking taylor expansion of 1.0 in x
0.135 * [backup-simplify]: Simplify 1.0 into 1.0
0.135 * [taylor]: Taking taylor expansion of x in x
0.135 * [backup-simplify]: Simplify 0 into 0
0.135 * [backup-simplify]: Simplify 1 into 1
0.135 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
0.136 * [backup-simplify]: Simplify (+ 0.5 0) into 0.5
0.136 * [backup-simplify]: Simplify (/ 0.5 1) into 0.5
0.136 * [taylor]: Taking taylor expansion of (* -1 (/ (+ (* 0.5 (/ 1 x)) 1.0) x)) in x
0.136 * [taylor]: Taking taylor expansion of -1 in x
0.136 * [backup-simplify]: Simplify -1 into -1
0.136 * [taylor]: Taking taylor expansion of (/ (+ (* 0.5 (/ 1 x)) 1.0) x) in x
0.136 * [taylor]: Taking taylor expansion of (+ (* 0.5 (/ 1 x)) 1.0) in x
0.136 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 x)) in x
0.136 * [taylor]: Taking taylor expansion of 0.5 in x
0.136 * [backup-simplify]: Simplify 0.5 into 0.5
0.137 * [taylor]: Taking taylor expansion of (/ 1 x) in x
0.137 * [taylor]: Taking taylor expansion of x in x
0.137 * [backup-simplify]: Simplify 0 into 0
0.137 * [backup-simplify]: Simplify 1 into 1
0.137 * [backup-simplify]: Simplify (/ 1 1) into 1
0.137 * [taylor]: Taking taylor expansion of 1.0 in x
0.137 * [backup-simplify]: Simplify 1.0 into 1.0
0.137 * [taylor]: Taking taylor expansion of x in x
0.137 * [backup-simplify]: Simplify 0 into 0
0.137 * [backup-simplify]: Simplify 1 into 1
0.137 * [backup-simplify]: Simplify (* 0.5 1) into 0.5
0.138 * [backup-simplify]: Simplify (+ 0.5 0) into 0.5
0.138 * [backup-simplify]: Simplify (/ 0.5 1) into 0.5
0.139 * [backup-simplify]: Simplify (* -1 0.5) into -0.5
0.139 * [backup-simplify]: Simplify -0.5 into -0.5
0.140 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0
0.140 * [backup-simplify]: Simplify (+ (* 0.5 0) (* 0 1)) into 0
0.141 * [backup-simplify]: Simplify (+ 0 1.0) into 1.0
0.143 * [backup-simplify]: Simplify (- (/ 1.0 1) (+ (* 0.5 (/ 0 1)))) into 1.0
0.144 * [backup-simplify]: Simplify (+ (* -1 1.0) (* 0 0.5)) into (- 1.0)
0.145 * [backup-simplify]: Simplify (- 1.0) into (- 1.0)
0.146 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.146 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (* 0 1))) into 0
0.147 * [backup-simplify]: Simplify (+ 0 0) into 0
0.147 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 1.0 (/ 0 1)))) into 0
0.148 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 1.0) (* 0 0.5))) into 0
0.148 * [backup-simplify]: Simplify 0 into 0
0.149 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.149 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
0.149 * [backup-simplify]: Simplify (+ 0 0) into 0
0.150 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 1.0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.152 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 1.0) (* 0 0.5)))) into 0
0.152 * [backup-simplify]: Simplify 0 into 0
0.153 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.154 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
0.154 * [backup-simplify]: Simplify (+ 0 0) into 0
0.155 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 1.0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.157 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1.0) (* 0 0.5))))) into 0
0.157 * [backup-simplify]: Simplify 0 into 0
0.158 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.159 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))) into 0
0.160 * [backup-simplify]: Simplify (+ 0 0) into 0
0.161 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 1.0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.163 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1.0) (* 0 0.5)))))) into 0
0.163 * [backup-simplify]: Simplify 0 into 0
0.164 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.165 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))))) into 0
0.165 * [backup-simplify]: Simplify (+ 0 0) into 0
0.166 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 1.0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.167 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1.0) (* 0 0.5))))))) into 0
0.167 * [backup-simplify]: Simplify 0 into 0
0.168 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.169 * [backup-simplify]: Simplify (+ (* 0.5 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))))) into 0
0.169 * [backup-simplify]: Simplify (+ 0 0) into 0
0.170 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 0.5 (/ 0 1)) (* 1.0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.172 * [backup-simplify]: Simplify (+ (* -1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 1.0) (* 0 0.5)))))))) into 0
0.172 * [backup-simplify]: Simplify 0 into 0
0.173 * [backup-simplify]: Simplify (+ (* (- 1.0) (/ 1 (/ 1 (- x)))) (* -0.5 (pow (/ 1 (/ 1 (- x))) 2))) into (- (* 1.0 x) (* 0.5 (pow x 2)))
0.173 * * * [progress]: simplifying candidates
0.173 * * * * [progress]: [ 1 / 28 ] simplifiying candidate #<alt (λ (x) (pow (* x (- 1.0 (* x 0.5))) 1))>
0.173 * * * * [progress]: [ 2 / 28 ] simplifiying candidate #<alt (λ (x) (pow (* x (- 1.0 (* x 0.5))) 1))>
0.173 * * * * [progress]: [ 3 / 28 ] simplifiying candidate #<alt (λ (x) (exp (+ (log x) (log (- 1.0 (* x 0.5))))))>
0.173 * * * * [progress]: [ 4 / 28 ] simplifiying candidate #<alt (λ (x) (exp (log (* x (- 1.0 (* x 0.5))))))>
0.173 * * * * [progress]: [ 5 / 28 ] simplifiying candidate #<alt (λ (x) (log (exp (* x (- 1.0 (* x 0.5))))))>
0.173 * * * * [progress]: [ 6 / 28 ] simplifiying candidate #<alt (λ (x) (cbrt (* (* (* x x) x) (* (* (- 1.0 (* x 0.5)) (- 1.0 (* x 0.5))) (- 1.0 (* x 0.5))))))>
0.173 * * * * [progress]: [ 7 / 28 ] simplifiying candidate #<alt (λ (x) (* (* (cbrt (* x (- 1.0 (* x 0.5)))) (cbrt (* x (- 1.0 (* x 0.5))))) (cbrt (* x (- 1.0 (* x 0.5))))))>
0.173 * * * * [progress]: [ 8 / 28 ] simplifiying candidate #<alt (λ (x) (cbrt (* (* (* x (- 1.0 (* x 0.5))) (* x (- 1.0 (* x 0.5)))) (* x (- 1.0 (* x 0.5))))))>
0.173 * * * * [progress]: [ 9 / 28 ] simplifiying candidate #<alt (λ (x) (* (sqrt (* x (- 1.0 (* x 0.5)))) (sqrt (* x (- 1.0 (* x 0.5))))))>
0.173 * * * * [progress]: [ 10 / 28 ] simplifiying candidate #<alt (λ (x) (* 1 (* x (- 1.0 (* x 0.5)))))>
0.173 * * * * [progress]: [ 11 / 28 ] simplifiying candidate #<alt (λ (x) (* (* (sqrt x) (sqrt (- 1.0 (* x 0.5)))) (* (sqrt x) (sqrt (- 1.0 (* x 0.5))))))>
0.173 * * * * [progress]: [ 12 / 28 ] simplifiying candidate #<alt (λ (x) (+ (* x 1.0) (* x (- (* x 0.5)))))>
0.174 * * * * [progress]: [ 13 / 28 ] simplifiying candidate #<alt (λ (x) (+ (* x 1.0) (* x (- (* x 0.5)))))>
0.174 * * * * [progress]: [ 14 / 28 ] simplifiying candidate #<alt (λ (x) (+ (* 1.0 x) (* (- (* x 0.5)) x)))>
0.174 * * * * [progress]: [ 15 / 28 ] simplifiying candidate #<alt (λ (x) (+ (* 1.0 x) (* (- (* x 0.5)) x)))>
0.174 * * * * [progress]: [ 16 / 28 ] simplifiying candidate #<alt (λ (x) (* (* x (* (cbrt (- 1.0 (* x 0.5))) (cbrt (- 1.0 (* x 0.5))))) (cbrt (- 1.0 (* x 0.5)))))>
0.174 * * * * [progress]: [ 17 / 28 ] simplifiying candidate #<alt (λ (x) (* (* x (sqrt (- 1.0 (* x 0.5)))) (sqrt (- 1.0 (* x 0.5)))))>
0.174 * * * * [progress]: [ 18 / 28 ] simplifiying candidate #<alt (λ (x) (* (* x 1) (- 1.0 (* x 0.5))))>
0.174 * * * * [progress]: [ 19 / 28 ] simplifiying candidate #<alt (λ (x) (* (* (cbrt x) (cbrt x)) (* (cbrt x) (- 1.0 (* x 0.5)))))>
0.174 * * * * [progress]: [ 20 / 28 ] simplifiying candidate #<alt (λ (x) (* (sqrt x) (* (sqrt x) (- 1.0 (* x 0.5)))))>
0.174 * * * * [progress]: [ 21 / 28 ] simplifiying candidate #<alt (λ (x) (* 1 (* x (- 1.0 (* x 0.5)))))>
0.174 * * * * [progress]: [ 22 / 28 ] simplifiying candidate #<alt (λ (x) (/ (* x (- (pow 1.0 3) (pow (* x 0.5) 3))) (+ (* 1.0 1.0) (+ (* (* x 0.5) (* x 0.5)) (* 1.0 (* x 0.5))))))>
0.174 * * * * [progress]: [ 23 / 28 ] simplifiying candidate #<alt (λ (x) (/ (* x (- (* 1.0 1.0) (* (* x 0.5) (* x 0.5)))) (+ 1.0 (* x 0.5))))>
0.174 * * * * [progress]: [ 24 / 28 ] simplifiying candidate #<alt (λ (x) (posit16->real (real->posit16 (* x (- 1.0 (* x 0.5))))))>
0.174 * * * * [progress]: [ 25 / 28 ] simplifiying candidate #<alt (λ (x) (* (- 1.0 (* x 0.5)) x))>
0.174 * * * * [progress]: [ 26 / 28 ] simplifiying candidate #<alt (λ (x) (- (* 1.0 x) (* 0.5 (pow x 2))))>
0.174 * * * * [progress]: [ 27 / 28 ] simplifiying candidate #<alt (λ (x) (- (* 1.0 x) (* 0.5 (pow x 2))))>
0.174 * * * * [progress]: [ 28 / 28 ] simplifiying candidate #<alt (λ (x) (- (* 1.0 x) (* 0.5 (pow x 2))))>
0.175 * [simplify]: Simplifying:
  (* x (- 1.0 (* x 0.5)))
  (+ (log x) (log (- 1.0 (* x 0.5))))
  (log (* x (- 1.0 (* x 0.5))))
  (exp (* x (- 1.0 (* x 0.5))))
  (* (* (* x x) x) (* (* (- 1.0 (* x 0.5)) (- 1.0 (* x 0.5))) (- 1.0 (* x 0.5))))
  (* (cbrt (* x (- 1.0 (* x 0.5)))) (cbrt (* x (- 1.0 (* x 0.5)))))
  (cbrt (* x (- 1.0 (* x 0.5))))
  (* (* (* x (- 1.0 (* x 0.5))) (* x (- 1.0 (* x 0.5)))) (* x (- 1.0 (* x 0.5))))
  (sqrt (* x (- 1.0 (* x 0.5))))
  (sqrt (* x (- 1.0 (* x 0.5))))
  (* (sqrt x) (sqrt (- 1.0 (* x 0.5))))
  (* (sqrt x) (sqrt (- 1.0 (* x 0.5))))
  (* x 1.0)
  (* x (- (* x 0.5)))
  (* x 1.0)
  (* x (- (* x 0.5)))
  (* 1.0 x)
  (* (- (* x 0.5)) x)
  (* 1.0 x)
  (* (- (* x 0.5)) x)
  (* x (* (cbrt (- 1.0 (* x 0.5))) (cbrt (- 1.0 (* x 0.5)))))
  (* x (sqrt (- 1.0 (* x 0.5))))
  (* x 1)
  (* (cbrt x) (- 1.0 (* x 0.5)))
  (* (sqrt x) (- 1.0 (* x 0.5)))
  (* x (- 1.0 (* x 0.5)))
  (* x (- (pow 1.0 3) (pow (* x 0.5) 3)))
  (* x (- (* 1.0 1.0) (* (* x 0.5) (* x 0.5))))
  (real->posit16 (* x (- 1.0 (* x 0.5))))
  (- (* 1.0 x) (* 0.5 (pow x 2)))
  (- (* 1.0 x) (* 0.5 (pow x 2)))
  (- (* 1.0 x) (* 0.5 (pow x 2)))
0.176 * * [simplify]: iteration 0: 52 enodes
0.201 * * [simplify]: iteration 1: 133 enodes
0.258 * * [simplify]: iteration 2: 416 enodes
0.484 * * [simplify]: iteration 3: 1879 enodes
0.937 * * [simplify]: iteration complete: 2002 enodes
0.937 * * [simplify]: Extracting #0: cost 18 inf + 0
0.937 * * [simplify]: Extracting #1: cost 173 inf + 1
0.939 * * [simplify]: Extracting #2: cost 404 inf + 3498
0.947 * * [simplify]: Extracting #3: cost 269 inf + 47162
0.974 * * [simplify]: Extracting #4: cost 30 inf + 92474
0.994 * * [simplify]: Extracting #5: cost 5 inf + 97247
1.024 * * [simplify]: Extracting #6: cost 1 inf + 98298
1.050 * * [simplify]: Extracting #7: cost 0 inf + 98510
1.072 * [simplify]: Simplified to:
  (* (- 1.0 (* x 0.5)) x)
  (log (* (- 1.0 (* x 0.5)) x))
  (log (* (- 1.0 (* x 0.5)) x))
  (exp (* (- 1.0 (* x 0.5)) x))
  (* (* (* (- 1.0 (* x 0.5)) x) (* (- 1.0 (* x 0.5)) x)) (* (- 1.0 (* x 0.5)) x))
  (* (cbrt (* (- 1.0 (* x 0.5)) x)) (cbrt (* (- 1.0 (* x 0.5)) x)))
  (cbrt (* (- 1.0 (* x 0.5)) x))
  (* (* (* (- 1.0 (* x 0.5)) x) (* (- 1.0 (* x 0.5)) x)) (* (- 1.0 (* x 0.5)) x))
  (sqrt (* (- 1.0 (* x 0.5)) x))
  (sqrt (* (- 1.0 (* x 0.5)) x))
  (* (sqrt x) (sqrt (- 1.0 (* x 0.5))))
  (* (sqrt x) (sqrt (- 1.0 (* x 0.5))))
  (* x 1.0)
  (- (* x (* x 0.5)))
  (* x 1.0)
  (- (* x (* x 0.5)))
  (* x 1.0)
  (- (* x (* x 0.5)))
  (* x 1.0)
  (- (* x (* x 0.5)))
  (* x (* (cbrt (- 1.0 (* x 0.5))) (cbrt (- 1.0 (* x 0.5)))))
  (* x (sqrt (- 1.0 (* x 0.5))))
  x
  (* (cbrt x) (- 1.0 (* x 0.5)))
  (* (sqrt x) (- 1.0 (* x 0.5)))
  (* (- 1.0 (* x 0.5)) x)
  (* x (- (* 1.0 (* 1.0 1.0)) (* (* x 0.5) (* (* x 0.5) (* x 0.5)))))
  (* (* (+ 1.0 (* x 0.5)) x) (- 1.0 (* x 0.5)))
  (real->posit16 (* (- 1.0 (* x 0.5)) x))
  (* (- 1.0 (* x 0.5)) x)
  (* (- 1.0 (* x 0.5)) x)
  (* (- 1.0 (* x 0.5)) x)
1.073 * * * [progress]: adding candidates to table
1.151 * * [progress]: iteration 2 / 4
1.151 * * * [progress]: picking best candidate
1.153 * * * * [pick]: Picked  #<alt (λ (x) (+ (* 1.0 x) (* (- (* x 0.5)) x)))>
1.153 * * * [progress]: localizing error
1.165 * * * [progress]: generating rewritten candidates
1.165 * * * [progress]: generating series expansions
1.165 * * * [progress]: simplifying candidates
1.165 * [simplify]: Simplifying:
  
1.165 * * [simplify]: iteration 0: 0 enodes
1.165 * * [simplify]: iteration complete: 0 enodes
1.165 * * [simplify]: Extracting #0: cost 0 inf + 0
1.165 * [simplify]: Simplified to:
  
1.165 * * * [progress]: adding candidates to table
1.166 * [progress]: [Phase 3 of 3] Extracting.
1.170 * [simplify]: Simplifying:
  (+ (* 1.0 x) (* (- (* x 0.5)) x))
1.170 * * [simplify]: iteration 0: 8 enodes
1.171 * * [simplify]: iteration 1: 18 enodes
1.173 * * [simplify]: iteration 2: 23 enodes
1.174 * * [simplify]: iteration 3: 24 enodes
1.175 * * [simplify]: iteration complete: 24 enodes
1.175 * * [simplify]: Extracting #0: cost 1 inf + 0
1.175 * * [simplify]: Extracting #1: cost 3 inf + 0
1.175 * * [simplify]: Extracting #2: cost 9 inf + 0
1.175 * * [simplify]: Extracting #3: cost 8 inf + 43
1.175 * * [simplify]: Extracting #4: cost 0 inf + 658
1.175 * [simplify]: Simplified to:
  (+ (* 1.0 x) (* (* 0.5 x) (- x)))
2.020 * [regime-testing]: Baseline error score: 0.007875984498062257
2.023 * [regime-testing]: Oracle error score: 0.007875984498062257
2.023 * [regime-testing]: End program error score: 0.007875984498062257