14.197 * [progress]: [Phase 1 of 3] Setting up. 0.001 * * * [progress]: [1/2] Preparing points 0.011 * * * [progress]: [2/2] Setting up program. 0.013 * [progress]: [Phase 2 of 3] Improving. 0.013 * [simplify]: Simplifying using # : (/ 2.0 (+ (exp x) (exp (- x)))) 0.015 * * [simplify]: iteration 0 : 10 enodes (cost 5 ) 0.016 * * [simplify]: iteration 1 : 12 enodes (cost 5 ) 0.018 * * [simplify]: iteration 2 : 14 enodes (cost 5 ) 0.019 * * [simplify]: iteration 3 : 15 enodes (cost 5 ) 0.020 * * [simplify]: iteration 4 : 20 enodes (cost 5 ) 0.021 * * [simplify]: iteration 5 : 41 enodes (cost 5 ) 0.023 * * [simplify]: iteration 6 : 66 enodes (cost 5 ) 0.025 * * [simplify]: iteration 7 : 165 enodes (cost 5 ) 0.032 * * [simplify]: iteration 8 : 1121 enodes (cost 5 ) 0.229 * * [simplify]: iteration 9 : 5002 enodes (cost 5 ) 0.230 * [simplify]: Simplified to: (/ 2.0 (+ (exp x) (exp (- x)))) 0.230 * * [progress]: iteration 1 / 4 0.230 * * * [progress]: picking best candidate 0.232 * * * * [pick]: Picked # 0.232 * * * [progress]: localizing error 0.238 * * * [progress]: generating rewritten candidates 0.238 * * * * [progress]: [ 1 / 1 ] rewriting at (2) 0.242 * * * [progress]: generating series expansions 0.242 * * * * [progress]: [ 1 / 1 ] generating series at (2) 0.242 * [approximate]: Taking taylor expansion of (/ 2.0 (+ (exp x) (exp (- x)))) in (x) around 0 0.242 * [taylor]: Taking taylor expansion of (/ 2.0 (+ (exp x) (exp (- x)))) in x 0.242 * [taylor]: Taking taylor expansion of 2.0 in x 0.242 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x 0.242 * [taylor]: Taking taylor expansion of (exp x) in x 0.242 * [taylor]: Taking taylor expansion of x in x 0.242 * [taylor]: Taking taylor expansion of (exp (- x)) in x 0.242 * [taylor]: Taking taylor expansion of (- x) in x 0.242 * [taylor]: Taking taylor expansion of x in x 0.243 * [taylor]: Taking taylor expansion of (/ 2.0 (+ (exp x) (exp (- x)))) in x 0.243 * [taylor]: Taking taylor expansion of 2.0 in x 0.243 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x 0.243 * [taylor]: Taking taylor expansion of (exp x) in x 0.243 * [taylor]: Taking taylor expansion of x in x 0.243 * [taylor]: Taking taylor expansion of (exp (- x)) in x 0.243 * [taylor]: Taking taylor expansion of (- x) in x 0.243 * [taylor]: Taking taylor expansion of x in x 0.266 * [approximate]: Taking taylor expansion of (/ 2.0 (+ (exp (/ 1 x)) (exp (- (/ 1 x))))) in (x) around 0 0.266 * [taylor]: Taking taylor expansion of (/ 2.0 (+ (exp (/ 1 x)) (exp (- (/ 1 x))))) in x 0.266 * [taylor]: Taking taylor expansion of 2.0 in x 0.266 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x 0.266 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x 0.266 * [taylor]: Taking taylor expansion of (/ 1 x) in x 0.266 * [taylor]: Taking taylor expansion of x in x 0.266 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x 0.267 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x 0.267 * [taylor]: Taking taylor expansion of (/ 1 x) in x 0.267 * [taylor]: Taking taylor expansion of x in x 0.267 * [taylor]: Taking taylor expansion of (/ 2.0 (+ (exp (/ 1 x)) (exp (- (/ 1 x))))) in x 0.267 * [taylor]: Taking taylor expansion of 2.0 in x 0.267 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (- (/ 1 x)))) in x 0.267 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x 0.267 * [taylor]: Taking taylor expansion of (/ 1 x) in x 0.267 * [taylor]: Taking taylor expansion of x in x 0.268 * [taylor]: Taking taylor expansion of (exp (- (/ 1 x))) in x 0.268 * [taylor]: Taking taylor expansion of (- (/ 1 x)) in x 0.268 * [taylor]: Taking taylor expansion of (/ 1 x) in x 0.268 * [taylor]: Taking taylor expansion of x in x 0.277 * [approximate]: Taking taylor expansion of (/ 2.0 (+ (exp (/ 1 x)) (exp (/ -1 x)))) in (x) around 0 0.277 * [taylor]: Taking taylor expansion of (/ 2.0 (+ (exp (/ 1 x)) (exp (/ -1 x)))) in x 0.277 * [taylor]: Taking taylor expansion of 2.0 in x 0.277 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in x 0.277 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x 0.277 * [taylor]: Taking taylor expansion of (/ 1 x) in x 0.277 * [taylor]: Taking taylor expansion of x in x 0.278 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x 0.278 * [taylor]: Taking taylor expansion of (/ -1 x) in x 0.278 * [taylor]: Taking taylor expansion of -1 in x 0.278 * [taylor]: Taking taylor expansion of x in x 0.278 * [taylor]: Taking taylor expansion of (/ 2.0 (+ (exp (/ 1 x)) (exp (/ -1 x)))) in x 0.278 * [taylor]: Taking taylor expansion of 2.0 in x 0.278 * [taylor]: Taking taylor expansion of (+ (exp (/ 1 x)) (exp (/ -1 x))) in x 0.278 * [taylor]: Taking taylor expansion of (exp (/ 1 x)) in x 0.278 * [taylor]: Taking taylor expansion of (/ 1 x) in x 0.278 * [taylor]: Taking taylor expansion of x in x 0.279 * [taylor]: Taking taylor expansion of (exp (/ -1 x)) in x 0.279 * [taylor]: Taking taylor expansion of (/ -1 x) in x 0.279 * [taylor]: Taking taylor expansion of -1 in x 0.279 * [taylor]: Taking taylor expansion of x in x 0.284 * * * [progress]: simplifying candidates 0.284 * [simplify]: Simplifying using # : (- 2.0) (- (+ (exp x) (exp (- x)))) (/ 1 (+ (exp x) (exp (- x)))) (/ (+ (exp x) (exp (- x))) 2.0) (/ 2.0 (+ (pow (exp x) 3) (pow (exp (- x)) 3))) (/ 2.0 (- (* (exp x) (exp x)) (* (exp (- x)) (exp (- x))))) (- (+ (* 0.20833333333333334 (pow x 4)) 1.0) (* 0.5 (pow x 2))) (/ 2.0 (+ (exp x) (exp (- x)))) (/ 2.0 (+ (exp (* -1 x)) (exp x))) 0.287 * * [simplify]: iteration 0 : 80 enodes (cost 49 ) 0.289 * * [simplify]: iteration 1 : 211 enodes (cost 48 ) 0.293 * * [simplify]: iteration 2 : 703 enodes (cost 48 ) 0.311 * * [simplify]: iteration 3 : 3768 enodes (cost 48 ) 0.437 * * [simplify]: iteration 4 : 5002 enodes (cost 48 ) 0.439 * [simplify]: Simplified to: (- 2.0) (- (+ (exp x) (exp (- x)))) (/ 1 (+ (exp x) (exp (- x)))) (/ (+ (exp x) (exp (- x))) 2.0) (/ 2.0 (+ (pow (exp x) 3) (pow (exp (- x)) 3))) (/ 2.0 (- (* (exp x) (exp x)) (* (exp (- x)) (exp (- x))))) (fma (pow x 4) 0.20833333333333334 (- 1.0 (* 0.5 (pow x 2)))) (/ 2.0 (+ (exp (* -1 x)) (exp x))) (/ 2.0 (+ (exp (* -1 x)) (exp x))) 0.439 * * * [progress]: adding candidates to table 0.456 * * [progress]: iteration 2 / 4 0.456 * * * [progress]: picking best candidate 0.458 * * * * [pick]: Picked # 0.458 * * * [progress]: localizing error 0.467 * * * [progress]: generating rewritten candidates 0.467 * * * * [progress]: [ 1 / 2 ] rewriting at (2) 0.468 * * * * [progress]: [ 2 / 2 ] rewriting at (2 3 2) 0.471 * * * [progress]: generating series expansions 0.471 * * * * [progress]: [ 1 / 2 ] generating series at (2) 0.471 * [approximate]: Taking taylor expansion of (fma (pow x 4) 0.20833333333333334 (- 1.0 (* 0.5 (pow x 2)))) in (x) around 0 0.471 * [taylor]: Taking taylor expansion of (fma (pow x 4) 0.20833333333333334 (- 1.0 (* 0.5 (pow x 2)))) in x 0.471 * [taylor]: Rewrote expression to (+ (* (pow x 4) 0.20833333333333334) (- 1.0 (* 0.5 (pow x 2)))) 0.471 * [taylor]: Taking taylor expansion of (* (pow x 4) 0.20833333333333334) in x 0.471 * [taylor]: Taking taylor expansion of (pow x 4) in x 0.471 * [taylor]: Taking taylor expansion of x in x 0.471 * [taylor]: Taking taylor expansion of 0.20833333333333334 in x 0.471 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (pow x 2))) in x 0.471 * [taylor]: Taking taylor expansion of 1.0 in x 0.471 * [taylor]: Taking taylor expansion of (* 0.5 (pow x 2)) in x 0.471 * [taylor]: Taking taylor expansion of 0.5 in x 0.471 * [taylor]: Taking taylor expansion of (pow x 2) in x 0.471 * [taylor]: Taking taylor expansion of x in x 0.471 * [taylor]: Taking taylor expansion of (fma (pow x 4) 0.20833333333333334 (- 1.0 (* 0.5 (pow x 2)))) in x 0.471 * [taylor]: Rewrote expression to (+ (* (pow x 4) 0.20833333333333334) (- 1.0 (* 0.5 (pow x 2)))) 0.471 * [taylor]: Taking taylor expansion of (* (pow x 4) 0.20833333333333334) in x 0.471 * [taylor]: Taking taylor expansion of (pow x 4) in x 0.472 * [taylor]: Taking taylor expansion of x in x 0.472 * [taylor]: Taking taylor expansion of 0.20833333333333334 in x 0.472 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (pow x 2))) in x 0.472 * [taylor]: Taking taylor expansion of 1.0 in x 0.472 * [taylor]: Taking taylor expansion of (* 0.5 (pow x 2)) in x 0.472 * [taylor]: Taking taylor expansion of 0.5 in x 0.472 * [taylor]: Taking taylor expansion of (pow x 2) in x 0.472 * [taylor]: Taking taylor expansion of x in x 0.479 * [approximate]: Taking taylor expansion of (fma (pow (/ 1 x) 4) 0.20833333333333334 (- 1.0 (* 0.5 (/ 1 (pow x 2))))) in (x) around 0 0.479 * [taylor]: Taking taylor expansion of (fma (pow (/ 1 x) 4) 0.20833333333333334 (- 1.0 (* 0.5 (/ 1 (pow x 2))))) in x 0.480 * [taylor]: Rewrote expression to (+ (* (pow (/ 1 x) 4) 0.20833333333333334) (- 1.0 (* 0.5 (/ 1 (pow x 2))))) 0.480 * [taylor]: Taking taylor expansion of (* (pow (/ 1 x) 4) 0.20833333333333334) in x 0.480 * [taylor]: Taking taylor expansion of (pow (/ 1 x) 4) in x 0.480 * [taylor]: Taking taylor expansion of (/ 1 x) in x 0.480 * [taylor]: Taking taylor expansion of x in x 0.480 * [taylor]: Taking taylor expansion of 0.20833333333333334 in x 0.480 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 (pow x 2)))) in x 0.480 * [taylor]: Taking taylor expansion of 1.0 in x 0.480 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (pow x 2))) in x 0.480 * [taylor]: Taking taylor expansion of 0.5 in x 0.480 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x 0.480 * [taylor]: Taking taylor expansion of (pow x 2) in x 0.480 * [taylor]: Taking taylor expansion of x in x 0.481 * [taylor]: Taking taylor expansion of (fma (pow (/ 1 x) 4) 0.20833333333333334 (- 1.0 (* 0.5 (/ 1 (pow x 2))))) in x 0.481 * [taylor]: Rewrote expression to (+ (* (pow (/ 1 x) 4) 0.20833333333333334) (- 1.0 (* 0.5 (/ 1 (pow x 2))))) 0.481 * [taylor]: Taking taylor expansion of (* (pow (/ 1 x) 4) 0.20833333333333334) in x 0.481 * [taylor]: Taking taylor expansion of (pow (/ 1 x) 4) in x 0.481 * [taylor]: Taking taylor expansion of (/ 1 x) in x 0.481 * [taylor]: Taking taylor expansion of x in x 0.481 * [taylor]: Taking taylor expansion of 0.20833333333333334 in x 0.481 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 (pow x 2)))) in x 0.481 * [taylor]: Taking taylor expansion of 1.0 in x 0.481 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (pow x 2))) in x 0.481 * [taylor]: Taking taylor expansion of 0.5 in x 0.481 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x 0.481 * [taylor]: Taking taylor expansion of (pow x 2) in x 0.481 * [taylor]: Taking taylor expansion of x in x 0.501 * [approximate]: Taking taylor expansion of (fma (pow (/ -1 x) 4) 0.20833333333333334 (- 1.0 (* 0.5 (/ 1 (pow x 2))))) in (x) around 0 0.501 * [taylor]: Taking taylor expansion of (fma (pow (/ -1 x) 4) 0.20833333333333334 (- 1.0 (* 0.5 (/ 1 (pow x 2))))) in x 0.501 * [taylor]: Rewrote expression to (+ (* (pow (/ -1 x) 4) 0.20833333333333334) (- 1.0 (* 0.5 (/ 1 (pow x 2))))) 0.501 * [taylor]: Taking taylor expansion of (* (pow (/ -1 x) 4) 0.20833333333333334) in x 0.501 * [taylor]: Taking taylor expansion of (pow (/ -1 x) 4) in x 0.501 * [taylor]: Taking taylor expansion of (/ -1 x) in x 0.501 * [taylor]: Taking taylor expansion of -1 in x 0.501 * [taylor]: Taking taylor expansion of x in x 0.502 * [taylor]: Taking taylor expansion of 0.20833333333333334 in x 0.502 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 (pow x 2)))) in x 0.502 * [taylor]: Taking taylor expansion of 1.0 in x 0.502 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (pow x 2))) in x 0.502 * [taylor]: Taking taylor expansion of 0.5 in x 0.502 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x 0.502 * [taylor]: Taking taylor expansion of (pow x 2) in x 0.502 * [taylor]: Taking taylor expansion of x in x 0.502 * [taylor]: Taking taylor expansion of (fma (pow (/ -1 x) 4) 0.20833333333333334 (- 1.0 (* 0.5 (/ 1 (pow x 2))))) in x 0.502 * [taylor]: Rewrote expression to (+ (* (pow (/ -1 x) 4) 0.20833333333333334) (- 1.0 (* 0.5 (/ 1 (pow x 2))))) 0.502 * [taylor]: Taking taylor expansion of (* (pow (/ -1 x) 4) 0.20833333333333334) in x 0.502 * [taylor]: Taking taylor expansion of (pow (/ -1 x) 4) in x 0.502 * [taylor]: Taking taylor expansion of (/ -1 x) in x 0.502 * [taylor]: Taking taylor expansion of -1 in x 0.502 * [taylor]: Taking taylor expansion of x in x 0.503 * [taylor]: Taking taylor expansion of 0.20833333333333334 in x 0.503 * [taylor]: Taking taylor expansion of (- 1.0 (* 0.5 (/ 1 (pow x 2)))) in x 0.503 * [taylor]: Taking taylor expansion of 1.0 in x 0.503 * [taylor]: Taking taylor expansion of (* 0.5 (/ 1 (pow x 2))) in x 0.503 * [taylor]: Taking taylor expansion of 0.5 in x 0.503 * [taylor]: Taking taylor expansion of (/ 1 (pow x 2)) in x 0.503 * [taylor]: Taking taylor expansion of (pow x 2) in x 0.503 * [taylor]: Taking taylor expansion of x in x 0.519 * * * * [progress]: [ 2 / 2 ] generating series at (2 3 2) 0.519 * [approximate]: Taking taylor expansion of (* 0.5 (pow x 2)) in (x) around 0 0.519 * [taylor]: Taking taylor expansion of (* 0.5 (pow x 2)) in x 0.519 * [taylor]: Taking taylor expansion of 0.5 in x 0.519 * [taylor]: Taking taylor expansion of (pow x 2) in x 0.519 * [taylor]: Taking taylor expansion of x in x 0.519 * [taylor]: Taking taylor expansion of (* 0.5 (pow x 2)) in x 0.519 * [taylor]: Taking taylor expansion of 0.5 in x 0.519 * [taylor]: Taking taylor expansion of (pow x 2) in x 0.519 * [taylor]: Taking taylor expansion of x in x 0.527 * [approximate]: Taking taylor expansion of (/ 0.5 (pow x 2)) in (x) around 0 0.527 * [taylor]: Taking taylor expansion of (/ 0.5 (pow x 2)) in x 0.527 * [taylor]: Taking taylor expansion of 0.5 in x 0.527 * [taylor]: Taking taylor expansion of (pow x 2) in x 0.527 * [taylor]: Taking taylor expansion of x in x 0.528 * [taylor]: Taking taylor expansion of (/ 0.5 (pow x 2)) in x 0.528 * [taylor]: Taking taylor expansion of 0.5 in x 0.528 * [taylor]: Taking taylor expansion of (pow x 2) in x 0.528 * [taylor]: Taking taylor expansion of x in x 0.535 * [approximate]: Taking taylor expansion of (/ 0.5 (pow x 2)) in (x) around 0 0.535 * [taylor]: Taking taylor expansion of (/ 0.5 (pow x 2)) in x 0.535 * [taylor]: Taking taylor expansion of 0.5 in x 0.535 * [taylor]: Taking taylor expansion of (pow x 2) in x 0.535 * [taylor]: Taking taylor expansion of x in x 0.536 * [taylor]: Taking taylor expansion of (/ 0.5 (pow x 2)) in x 0.536 * [taylor]: Taking taylor expansion of 0.5 in x 0.536 * [taylor]: Taking taylor expansion of (pow x 2) in x 0.536 * [taylor]: Taking taylor expansion of x in x 0.543 * * * [progress]: simplifying candidates 0.544 * [simplify]: Simplifying using # : (* (pow x 4) 0.20833333333333334) (* 0.5 x) (* 0.5 (pow x (/ 2 2))) (- (+ (* 0.20833333333333334 (pow x 4)) 1.0) (* 0.5 (pow x 2))) (- (+ (* 0.20833333333333334 (pow x 4)) 1.0) (* 0.5 (pow x 2))) (- (+ (* 0.20833333333333334 (pow x 4)) 1.0) (* 0.5 (pow x 2))) (* 0.5 (pow x 2)) (* 0.5 (pow x 2)) (* 0.5 (pow x 2)) 0.546 * * [simplify]: iteration 0 : 37 enodes (cost 28 ) 0.548 * * [simplify]: iteration 1 : 105 enodes (cost 25 ) 0.551 * * [simplify]: iteration 2 : 341 enodes (cost 25 ) 0.561 * * [simplify]: iteration 3 : 1654 enodes (cost 25 ) 0.612 * * [simplify]: iteration 4 : 5001 enodes (cost 25 ) 0.612 * [simplify]: Simplified to: (* (pow x 4) 0.20833333333333334) (* x 0.5) (* x 0.5) (fma 0.20833333333333334 (pow x 4) (- 1.0 (* 0.5 (pow x 2)))) (fma 0.20833333333333334 (pow x 4) (- 1.0 (* 0.5 (pow x 2)))) (fma 0.20833333333333334 (pow x 4) (- 1.0 (* 0.5 (pow x 2)))) (* 0.5 (pow x 2)) (* 0.5 (pow x 2)) (* 0.5 (pow x 2)) 0.612 * * * [progress]: adding candidates to table 0.625 * [progress]: [Phase 3 of 3] Extracting. 0.625 * * [regime]: Finding splitpoints for: (# #) 0.625 * * * [regime-changes]: Trying 3 branch expressions: ((+ (exp x) (exp (- x))) (/ 2.0 (+ (exp x) (exp (- x)))) x) 0.625 * * * * [regimes]: Trying to branch on (+ (exp x) (exp (- x))) from (# #) 0.642 * * * * [regimes]: Trying to branch on (/ 2.0 (+ (exp x) (exp (- x)))) from (# #) 0.656 * * * * [regimes]: Trying to branch on x from (# #) 0.667 * * * [regime]: Found split indices: #