21.194 * [progress]: [Phase 1 of 3] Setting up.
0.001 * * * [progress]: [1/2] Preparing points
0.019 * * * [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 x) 2.0) 1.0))>
0.023 * [simplify]: Simplifying:
  (- (* (* x x) 2.0) 1.0)
0.024 * * [simplify]: iteration 0: 6 enodes
0.026 * * [simplify]: iteration 1: 12 enodes
0.030 * * [simplify]: iteration 2: 18 enodes
0.035 * * [simplify]: iteration 3: 19 enodes
0.040 * * [simplify]: iteration complete: 19 enodes
0.040 * * [simplify]: Extracting #0: cost 1 inf + 0
0.040 * * [simplify]: Extracting #1: cost 8 inf + 0
0.040 * * [simplify]: Extracting #2: cost 4 inf + 44
0.040 * * [simplify]: Extracting #3: cost 0 inf + 332
0.041 * [simplify]: Simplified to:
  (- (* 2.0 (* x x)) 1.0)
0.042 * * [progress]: iteration 1 / 4
0.042 * * * [progress]: picking best candidate
0.045 * * * * [pick]: Picked  #<alt (λ (x) (- (* (* x x) 2.0) 1.0))>
0.045 * * * [progress]: localizing error
0.060 * * * [progress]: generating rewritten candidates
0.060 * * * * [progress]: [ 1 / 1 ] rewriting at (2 1)
0.096 * * * [progress]: generating series expansions
0.096 * * * * [progress]: [ 1 / 1 ] generating series at (2 1)
0.096 * [backup-simplify]: Simplify (* (* x x) 2.0) into (* 2.0 (pow x 2))
0.096 * [approximate]: Taking taylor expansion of (* 2.0 (pow x 2)) in (x) around 0
0.096 * [taylor]: Taking taylor expansion of (* 2.0 (pow x 2)) in x
0.096 * [taylor]: Taking taylor expansion of 2.0 in x
0.096 * [backup-simplify]: Simplify 2.0 into 2.0
0.096 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.096 * [taylor]: Taking taylor expansion of x in x
0.096 * [backup-simplify]: Simplify 0 into 0
0.096 * [backup-simplify]: Simplify 1 into 1
0.096 * [taylor]: Taking taylor expansion of (* 2.0 (pow x 2)) in x
0.096 * [taylor]: Taking taylor expansion of 2.0 in x
0.096 * [backup-simplify]: Simplify 2.0 into 2.0
0.096 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.096 * [taylor]: Taking taylor expansion of x in x
0.096 * [backup-simplify]: Simplify 0 into 0
0.096 * [backup-simplify]: Simplify 1 into 1
0.097 * [backup-simplify]: Simplify (* 1 1) into 1
0.097 * [backup-simplify]: Simplify (* 2.0 1) into 2.0
0.098 * [backup-simplify]: Simplify 2.0 into 2.0
0.099 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
0.099 * [backup-simplify]: Simplify (+ (* 2.0 0) (* 0 1)) into 0
0.099 * [backup-simplify]: Simplify 0 into 0
0.100 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
0.101 * [backup-simplify]: Simplify (+ (* 2.0 0) (+ (* 0 0) (* 0 1))) into 0
0.101 * [backup-simplify]: Simplify 0 into 0
0.102 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
0.103 * [backup-simplify]: Simplify (+ (* 2.0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
0.103 * [backup-simplify]: Simplify 0 into 0
0.104 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
0.106 * [backup-simplify]: Simplify (+ (* 2.0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
0.106 * [backup-simplify]: Simplify 0 into 0
0.107 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))) into 0
0.108 * [backup-simplify]: Simplify (+ (* 2.0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))) into 0
0.108 * [backup-simplify]: Simplify 0 into 0
0.110 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))))) into 0
0.111 * [backup-simplify]: Simplify (+ (* 2.0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))))) into 0
0.111 * [backup-simplify]: Simplify 0 into 0
0.111 * [backup-simplify]: Simplify (* 2.0 (pow x 2)) into (* 2.0 (pow x 2))
0.111 * [backup-simplify]: Simplify (* (* (/ 1 x) (/ 1 x)) 2.0) into (/ 2.0 (pow x 2))
0.111 * [approximate]: Taking taylor expansion of (/ 2.0 (pow x 2)) in (x) around 0
0.111 * [taylor]: Taking taylor expansion of (/ 2.0 (pow x 2)) in x
0.111 * [taylor]: Taking taylor expansion of 2.0 in x
0.111 * [backup-simplify]: Simplify 2.0 into 2.0
0.111 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.111 * [taylor]: Taking taylor expansion of x in x
0.111 * [backup-simplify]: Simplify 0 into 0
0.112 * [backup-simplify]: Simplify 1 into 1
0.112 * [backup-simplify]: Simplify (* 1 1) into 1
0.112 * [backup-simplify]: Simplify (/ 2.0 1) into 2.0
0.112 * [taylor]: Taking taylor expansion of (/ 2.0 (pow x 2)) in x
0.112 * [taylor]: Taking taylor expansion of 2.0 in x
0.112 * [backup-simplify]: Simplify 2.0 into 2.0
0.112 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.112 * [taylor]: Taking taylor expansion of x in x
0.112 * [backup-simplify]: Simplify 0 into 0
0.112 * [backup-simplify]: Simplify 1 into 1
0.112 * [backup-simplify]: Simplify (* 1 1) into 1
0.113 * [backup-simplify]: Simplify (/ 2.0 1) into 2.0
0.113 * [backup-simplify]: Simplify 2.0 into 2.0
0.113 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
0.114 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 2.0 (/ 0 1)))) into 0
0.114 * [backup-simplify]: Simplify 0 into 0
0.114 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
0.115 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 2.0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.115 * [backup-simplify]: Simplify 0 into 0
0.115 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
0.116 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 2.0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.116 * [backup-simplify]: Simplify 0 into 0
0.117 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
0.117 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 2.0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.117 * [backup-simplify]: Simplify 0 into 0
0.118 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))) into 0
0.119 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 2.0 (/ 0 1)) (* 0 (/ 0 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) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))))) into 0
0.121 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 2.0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.121 * [backup-simplify]: Simplify 0 into 0
0.121 * [backup-simplify]: Simplify (* 2.0 (pow (/ 1 (/ 1 x)) 2)) into (* 2.0 (pow x 2))
0.121 * [backup-simplify]: Simplify (* (* (/ 1 (- x)) (/ 1 (- x))) 2.0) into (/ 2.0 (pow x 2))
0.121 * [approximate]: Taking taylor expansion of (/ 2.0 (pow x 2)) in (x) around 0
0.121 * [taylor]: Taking taylor expansion of (/ 2.0 (pow x 2)) in x
0.121 * [taylor]: Taking taylor expansion of 2.0 in x
0.121 * [backup-simplify]: Simplify 2.0 into 2.0
0.121 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.121 * [taylor]: Taking taylor expansion of x in x
0.121 * [backup-simplify]: Simplify 0 into 0
0.121 * [backup-simplify]: Simplify 1 into 1
0.121 * [backup-simplify]: Simplify (* 1 1) into 1
0.122 * [backup-simplify]: Simplify (/ 2.0 1) into 2.0
0.122 * [taylor]: Taking taylor expansion of (/ 2.0 (pow x 2)) in x
0.122 * [taylor]: Taking taylor expansion of 2.0 in x
0.122 * [backup-simplify]: Simplify 2.0 into 2.0
0.122 * [taylor]: Taking taylor expansion of (pow x 2) in x
0.122 * [taylor]: Taking taylor expansion of x in x
0.122 * [backup-simplify]: Simplify 0 into 0
0.122 * [backup-simplify]: Simplify 1 into 1
0.122 * [backup-simplify]: Simplify (* 1 1) into 1
0.122 * [backup-simplify]: Simplify (/ 2.0 1) into 2.0
0.122 * [backup-simplify]: Simplify 2.0 into 2.0
0.123 * [backup-simplify]: Simplify (+ (* 1 0) (* 0 1)) into 0
0.123 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 2.0 (/ 0 1)))) into 0
0.123 * [backup-simplify]: Simplify 0 into 0
0.124 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (* 0 1))) into 0
0.125 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 2.0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.125 * [backup-simplify]: Simplify 0 into 0
0.125 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))) into 0
0.126 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 2.0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.126 * [backup-simplify]: Simplify 0 into 0
0.126 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))) into 0
0.127 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 2.0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.127 * [backup-simplify]: Simplify 0 into 0
0.128 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1)))))) into 0
0.129 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 2.0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.129 * [backup-simplify]: Simplify 0 into 0
0.129 * [backup-simplify]: Simplify (+ (* 1 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (+ (* 0 0) (* 0 1))))))) into 0
0.130 * [backup-simplify]: Simplify (- (/ 0 1) (+ (* 2.0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)) (* 0 (/ 0 1)))) into 0
0.130 * [backup-simplify]: Simplify 0 into 0
0.130 * [backup-simplify]: Simplify (* 2.0 (pow (/ 1 (/ 1 (- x))) 2)) into (* 2.0 (pow x 2))
0.130 * * * [progress]: simplifying candidates
0.130 * * * * [progress]: [ 1 / 25 ] simplifiying candidate #<alt (λ (x) (- (log1p (expm1 (* (* x x) 2.0))) 1.0))>
0.130 * * * * [progress]: [ 2 / 25 ] simplifiying candidate #<alt (λ (x) (- (expm1 (log1p (* (* x x) 2.0))) 1.0))>
0.130 * * * * [progress]: [ 3 / 25 ] simplifiying candidate #<alt (λ (x) (- (pow (* (* x x) 2.0) 1) 1.0))>
0.130 * * * * [progress]: [ 4 / 25 ] simplifiying candidate #<alt (λ (x) (- (pow (* (* x x) 2.0) 1) 1.0))>
0.130 * * * * [progress]: [ 5 / 25 ] simplifiying candidate #<alt (λ (x) (- (pow (* (* x x) 2.0) 1) 1.0))>
0.130 * * * * [progress]: [ 6 / 25 ] simplifiying candidate #<alt (λ (x) (- (exp (+ (+ (log x) (log x)) (log 2.0))) 1.0))>
0.130 * * * * [progress]: [ 7 / 25 ] simplifiying candidate #<alt (λ (x) (- (exp (+ (log (* x x)) (log 2.0))) 1.0))>
0.130 * * * * [progress]: [ 8 / 25 ] simplifiying candidate #<alt (λ (x) (- (exp (log (* (* x x) 2.0))) 1.0))>
0.131 * * * * [progress]: [ 9 / 25 ] simplifiying candidate #<alt (λ (x) (- (log (exp (* (* x x) 2.0))) 1.0))>
0.131 * * * * [progress]: [ 10 / 25 ] simplifiying candidate #<alt (λ (x) (- (cbrt (* (* (* (* x x) x) (* (* x x) x)) (* (* 2.0 2.0) 2.0))) 1.0))>
0.131 * * * * [progress]: [ 11 / 25 ] simplifiying candidate #<alt (λ (x) (- (cbrt (* (* (* (* x x) (* x x)) (* x x)) (* (* 2.0 2.0) 2.0))) 1.0))>
0.131 * * * * [progress]: [ 12 / 25 ] simplifiying candidate #<alt (λ (x) (- (* (* (cbrt (* (* x x) 2.0)) (cbrt (* (* x x) 2.0))) (cbrt (* (* x x) 2.0))) 1.0))>
0.131 * * * * [progress]: [ 13 / 25 ] simplifiying candidate #<alt (λ (x) (- (cbrt (* (* (* (* x x) 2.0) (* (* x x) 2.0)) (* (* x x) 2.0))) 1.0))>
0.131 * * * * [progress]: [ 14 / 25 ] simplifiying candidate #<alt (λ (x) (- (* (sqrt (* (* x x) 2.0)) (sqrt (* (* x x) 2.0))) 1.0))>
0.131 * * * * [progress]: [ 15 / 25 ] simplifiying candidate #<alt (λ (x) (- (* 1 (* (* x x) 2.0)) 1.0))>
0.131 * * * * [progress]: [ 16 / 25 ] simplifiying candidate #<alt (λ (x) (- (* (* x (sqrt 2.0)) (* x (sqrt 2.0))) 1.0))>
0.131 * * * * [progress]: [ 17 / 25 ] simplifiying candidate #<alt (λ (x) (- (* (* (* x x) (* (cbrt 2.0) (cbrt 2.0))) (cbrt 2.0)) 1.0))>
0.131 * * * * [progress]: [ 18 / 25 ] simplifiying candidate #<alt (λ (x) (- (* (* (* x x) (sqrt 2.0)) (sqrt 2.0)) 1.0))>
0.131 * * * * [progress]: [ 19 / 25 ] simplifiying candidate #<alt (λ (x) (- (* (* (* x x) 1) 2.0) 1.0))>
0.131 * * * * [progress]: [ 20 / 25 ] simplifiying candidate #<alt (λ (x) (- (* x (* x 2.0)) 1.0))>
0.131 * * * * [progress]: [ 21 / 25 ] simplifiying candidate #<alt (λ (x) (- (posit16->real (real->posit16 (* (* x x) 2.0))) 1.0))>
0.131 * * * * [progress]: [ 22 / 25 ] simplifiying candidate #<alt (λ (x) (- (* 2.0 (* x x)) 1.0))>
0.131 * * * * [progress]: [ 23 / 25 ] simplifiying candidate #<alt (λ (x) (- (* 2.0 (pow x 2)) 1.0))>
0.131 * * * * [progress]: [ 24 / 25 ] simplifiying candidate #<alt (λ (x) (- (* 2.0 (pow x 2)) 1.0))>
0.131 * * * * [progress]: [ 25 / 25 ] simplifiying candidate #<alt (λ (x) (- (* 2.0 (pow x 2)) 1.0))>
0.131 * [simplify]: Simplifying:
  (expm1 (* (* x x) 2.0))
  (log1p (* (* x x) 2.0))
  (* (* x x) 2.0)
  (* (* x x) 2.0)
  (+ (+ (log x) (log x)) (log 2.0))
  (+ (log (* x x)) (log 2.0))
  (log (* (* x x) 2.0))
  (exp (* (* x x) 2.0))
  (* (* (* (* x x) x) (* (* x x) x)) (* (* 2.0 2.0) 2.0))
  (* (* (* (* x x) (* x x)) (* x x)) (* (* 2.0 2.0) 2.0))
  (* (cbrt (* (* x x) 2.0)) (cbrt (* (* x x) 2.0)))
  (cbrt (* (* x x) 2.0))
  (* (* (* (* x x) 2.0) (* (* x x) 2.0)) (* (* x x) 2.0))
  (sqrt (* (* x x) 2.0))
  (sqrt (* (* x x) 2.0))
  (* x (sqrt 2.0))
  (* x (sqrt 2.0))
  (* (* x x) (* (cbrt 2.0) (cbrt 2.0)))
  (* (* x x) (sqrt 2.0))
  (* (* x x) 1)
  (* x 2.0)
  (real->posit16 (* (* x x) 2.0))
  (* 2.0 (pow x 2))
  (* 2.0 (pow x 2))
  (* 2.0 (pow x 2))
0.132 * * [simplify]: iteration 0: 40 enodes
0.140 * * [simplify]: iteration 1: 99 enodes
0.183 * * [simplify]: iteration 2: 327 enodes
0.403 * * [simplify]: iteration 3: 1028 enodes
2.064 * * [simplify]: iteration 4: 4779 enodes
3.828 * * [simplify]: iteration complete: 5000 enodes
3.828 * * [simplify]: Extracting #0: cost 15 inf + 0
3.828 * * [simplify]: Extracting #1: cost 378 inf + 0
3.833 * * [simplify]: Extracting #2: cost 1241 inf + 15275
3.862 * * [simplify]: Extracting #3: cost 415 inf + 149364
3.903 * * [simplify]: Extracting #4: cost 13 inf + 187740
3.950 * * [simplify]: Extracting #5: cost 1 inf + 187518
4.012 * * [simplify]: Extracting #6: cost 0 inf + 187922
4.083 * [simplify]: Simplified to:
  (expm1 (* (* x x) 2.0))
  (log1p (* (* x x) 2.0))
  (* (* x x) 2.0)
  (* (* x x) 2.0)
  (log (* (* x x) 2.0))
  (log (* (* x x) 2.0))
  (log (* (* x x) 2.0))
  (exp (* (* x x) 2.0))
  (* (* (* (* x x) 2.0) (* (* x x) 2.0)) (* (* x x) 2.0))
  (* (* (* (* x x) 2.0) (* (* x x) 2.0)) (* (* x x) 2.0))
  (* (cbrt (* (* x x) 2.0)) (cbrt (* (* x x) 2.0)))
  (cbrt (* (* x x) 2.0))
  (* (* (* (* x x) 2.0) (* (* x x) 2.0)) (* (* x x) 2.0))
  (sqrt (* (* x x) 2.0))
  (sqrt (* (* x x) 2.0))
  (* x (sqrt 2.0))
  (* x (sqrt 2.0))
  (* (* x (cbrt 2.0)) (* x (cbrt 2.0)))
  (* (* x x) (sqrt 2.0))
  (* x x)
  (* x 2.0)
  (real->posit16 (* (* x x) 2.0))
  (* (* x x) 2.0)
  (* (* x x) 2.0)
  (* (* x x) 2.0)
4.084 * * * [progress]: adding candidates to table
4.159 * [progress]: [Phase 3 of 3] Extracting.
4.163 * [simplify]: Simplifying:
  (- (* (* x x) 2.0) 1.0)
4.163 * * [simplify]: iteration 0: 6 enodes
4.163 * * [simplify]: iteration 1: 7 enodes
4.164 * * [simplify]: iteration complete: 7 enodes
4.164 * * [simplify]: Extracting #0: cost 1 inf + 0
4.164 * * [simplify]: Extracting #1: cost 3 inf + 0
4.164 * * [simplify]: Extracting #2: cost 4 inf + 1
4.164 * * [simplify]: Extracting #3: cost 4 inf + 2
4.164 * * [simplify]: Extracting #4: cost 3 inf + 3
4.164 * * [simplify]: Extracting #5: cost 0 inf + 249
4.164 * [simplify]: Simplified to:
  (- (* 2.0 (* x x)) 1.0)
5.086 * [regime-testing]: Baseline error score: 0.0023234107389325112
5.088 * [regime-testing]: Oracle error score: 0.0023234107389325112
5.088 * [regime-testing]: End program error score: 0.0023234107389325112