3.944 * [progress]: [Phase 1 of 3] Setting up. 0.001 * * * [progress]: [1/2] Preparing points 0.118 * * * [progress]: [2/2] Setting up program. 0.120 * [progress]: [Phase 2 of 3] Improving. 0.120 * [simplify]: Simplifying: (+ (- (exp x) 2.0) (exp (- x))) 0.120 * * [simplify]: Extracting # 0 : cost 0 0.121 * * [simplify]: Extracting # 1 : cost 0 0.121 * * [simplify]: Extracting # 2 : cost 0 0.121 * * [simplify]: Extracting # 3 : cost 0 0.121 * * [simplify]: Extracting # 4 : cost 0 0.121 * * [simplify]: Extracting # 5 : cost 0 0.121 * * [simplify]: iteration 0 : 7 enodes (cost 8 ) 0.122 * * [simplify]: Extracting # 0 : cost 0 0.122 * * [simplify]: Extracting # 1 : cost 0 0.122 * * [simplify]: Extracting # 2 : cost 0 0.122 * * [simplify]: iteration 1 : 14 enodes (cost 8 ) 0.127 * * [simplify]: Extracting # 0 : cost 0 0.127 * * [simplify]: Extracting # 1 : cost 0 0.127 * * [simplify]: Extracting # 2 : cost 0 0.128 * * [simplify]: iteration 2 : 26 enodes (cost 8 ) 0.137 * * [simplify]: Extracting # 0 : cost 0 0.137 * * [simplify]: Extracting # 1 : cost 0 0.137 * * [simplify]: Extracting # 2 : cost 0 0.137 * * [simplify]: iteration 3 : 40 enodes (cost 8 ) 0.149 * * [simplify]: Extracting # 0 : cost 0 0.149 * * [simplify]: Extracting # 1 : cost 0 0.150 * * [simplify]: Extracting # 2 : cost 0 0.150 * * [simplify]: iteration 4 : 49 enodes (cost 8 ) 0.161 * * [simplify]: Extracting # 0 : cost 0 0.162 * * [simplify]: Extracting # 1 : cost 0 0.162 * * [simplify]: Extracting # 2 : cost 0 0.162 * * [simplify]: iteration 5 : 54 enodes (cost 8 ) 0.205 * * [simplify]: Extracting # 0 : cost 0 0.206 * * [simplify]: Extracting # 1 : cost 0 0.206 * * [simplify]: Extracting # 2 : cost 0 0.206 * * [simplify]: iteration 6 : 63 enodes (cost 8 ) 0.225 * * [simplify]: Extracting # 0 : cost 0 0.225 * * [simplify]: Extracting # 1 : cost 0 0.225 * * [simplify]: Extracting # 2 : cost 0 0.225 * * [simplify]: iteration 7 : 80 enodes (cost 8 ) 0.251 * * [simplify]: Extracting # 0 : cost 0 0.252 * * [simplify]: Extracting # 1 : cost 0 0.252 * * [simplify]: Extracting # 2 : cost 0 0.252 * * [simplify]: iteration 8 : 95 enodes (cost 8 ) 0.276 * * [simplify]: Extracting # 0 : cost 0 0.276 * * [simplify]: Extracting # 1 : cost 0 0.276 * * [simplify]: Extracting # 2 : cost 0 0.276 * * [simplify]: iteration 9 : 103 enodes (cost 8 ) 0.302 * * [simplify]: Extracting # 0 : cost 0 0.302 * * [simplify]: Extracting # 1 : cost 0 0.302 * * [simplify]: Extracting # 2 : cost 0 0.303 * * [simplify]: iteration 10 : 111 enodes (cost 8 ) 0.321 * * [simplify]: Extracting # 0 : cost 0 0.321 * * [simplify]: Extracting # 1 : cost 0 0.321 * * [simplify]: iteration done: 111 enodes (cost 8 ) 0.321 * [simplify]: Simplified to: (+ (- (exp x) 2.0) (exp (- x))) 0.321 * * [progress]: iteration 1 / 4 0.321 * * * [progress]: picking best candidate 0.323 * * * * [pick]: Picked # 0.323 * * * [progress]: localizing error 0.334 * * * [progress]: generating rewritten candidates 0.334 * * * * [progress]: [ 1 / 2 ] rewriting at (2) 0.444 * * * * [progress]: [ 2 / 2 ] rewriting at (2 1) 0.471 * * * [progress]: generating series expansions 0.471 * * * * [progress]: [ 1 / 2 ] generating series at (2) 0.472 * [backup-simplify]: Simplify (+ (- (exp x) 2.0) (exp (- x))) into (- (+ (exp x) (exp (- x))) 2.0) 0.472 * [approximate]: Taking taylor expansion of (- (+ (exp x) (exp (- x))) 2.0) in (x) around 0 0.472 * [taylor]: Taking taylor expansion of (- (+ (exp x) (exp (- x))) 2.0) in x 0.472 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x 0.472 * [taylor]: Taking taylor expansion of (exp x) in x 0.472 * [taylor]: Taking taylor expansion of x in x 0.472 * [backup-simplify]: Simplify 0 into 0 0.472 * [backup-simplify]: Simplify 1 into 1 0.472 * [backup-simplify]: Simplify (exp 0) into 1 0.472 * [taylor]: Taking taylor expansion of (exp (- x)) in x 0.472 * [taylor]: Taking taylor expansion of (- x) in x 0.472 * [taylor]: Taking taylor expansion of x in x 0.472 * [backup-simplify]: Simplify 0 into 0 0.472 * [backup-simplify]: Simplify 1 into 1 0.473 * [backup-simplify]: Simplify (- 0) into 0 0.473 * [backup-simplify]: Simplify (- 1) into -1 0.473 * [backup-simplify]: Simplify (exp 0) into 1 0.473 * [taylor]: Taking taylor expansion of 2.0 in x 0.473 * [backup-simplify]: Simplify 2.0 into 2.0 0.473 * [taylor]: Taking taylor expansion of (- (+ (exp x) (exp (- x))) 2.0) in x 0.473 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x 0.473 * [taylor]: Taking taylor expansion of (exp x) in x 0.473 * [taylor]: Taking taylor expansion of x in x 0.473 * [backup-simplify]: Simplify 0 into 0 0.473 * [backup-simplify]: Simplify 1 into 1 0.473 * [backup-simplify]: Simplify (exp 0) into 1 0.473 * [taylor]: Taking taylor expansion of (exp (- x)) in x 0.473 * [taylor]: Taking taylor expansion of (- x) in x 0.474 * [taylor]: Taking taylor expansion of x in x 0.474 * [backup-simplify]: Simplify 0 into 0 0.474 * [backup-simplify]: Simplify 1 into 1 0.474 * [backup-simplify]: Simplify (- 0) into 0 0.474 * [backup-simplify]: Simplify (- 1) into -1 0.474 * [backup-simplify]: Simplify (exp 0) into 1 0.474 * [taylor]: Taking taylor expansion of 2.0 in x 0.474 * [backup-simplify]: Simplify 2.0 into 2.0 0.475 * [backup-simplify]: Simplify (+ 1 1) into 2 0.475 * [backup-simplify]: Simplify (- 2.0) into (- 2.0) 0.476 * [backup-simplify]: Simplify (+ 2 (- 2.0)) into 0 0.476 * [backup-simplify]: Simplify 0 into 0 0.477 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow 1 1) 1)))) into 1 0.478 * [backup-simplify]: Simplify (- 1) into -1 0.479 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow -1 1) 1)))) into -1 0.479 * [backup-simplify]: Simplify (+ 1 -1) into 0 0.480 * [backup-simplify]: Simplify (- 0) into 0 0.480 * [backup-simplify]: Simplify (+ 0 0) into 0 0.480 * [backup-simplify]: Simplify 0 into 0 0.482 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow 1 2) 2)) (* (/ (pow 0 1) 1)))) into 1/2 0.482 * [backup-simplify]: Simplify (- 1) into -1 0.483 * [backup-simplify]: Simplify (- 0) into 0 0.485 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow -1 2) 2)) (* (/ (pow 0 1) 1)))) into 1/2 0.485 * [backup-simplify]: Simplify (+ 1/2 1/2) into 1 0.486 * [backup-simplify]: Simplify (- 0) into 0 0.486 * [backup-simplify]: Simplify (+ 1 0) into 1 0.486 * [backup-simplify]: Simplify 1 into 1 0.491 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow 1 3) 6)) (* (/ (pow 1 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 1) 1)))) into 1/6 0.491 * [backup-simplify]: Simplify (- 1) into -1 0.492 * [backup-simplify]: Simplify (- 1) into -1 0.492 * [backup-simplify]: Simplify (- 0) into 0 0.492 * [backup-simplify]: Simplify (- 0) into 0 0.495 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow -1 3) 6)) (* (/ (pow -1 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 1) 1)))) into -1/6 0.495 * [backup-simplify]: Simplify (+ 1/6 -1/6) into 0 0.495 * [backup-simplify]: Simplify (- 0) into 0 0.495 * [backup-simplify]: Simplify (+ 0 0) into 0 0.495 * [backup-simplify]: Simplify 0 into 0 0.498 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow 1 4) 24)) (* (/ (pow 1 2) 2) (/ (pow 0 1) 1)) (* (/ (pow 1 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 1/24 0.498 * [backup-simplify]: Simplify (- 1) into -1 0.498 * [backup-simplify]: Simplify (- 1) into -1 0.498 * [backup-simplify]: Simplify (- 0) into 0 0.499 * [backup-simplify]: Simplify (- 1) into -1 0.499 * [backup-simplify]: Simplify (- 0) into 0 0.499 * [backup-simplify]: Simplify (- 0) into 0 0.500 * [backup-simplify]: Simplify (- 0) into 0 0.502 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow -1 4) 24)) (* (/ (pow -1 2) 2) (/ (pow 0 1) 1)) (* (/ (pow -1 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 1/24 0.502 * [backup-simplify]: Simplify (+ 1/24 1/24) into 1/12 0.503 * [backup-simplify]: Simplify (- 0) into 0 0.503 * [backup-simplify]: Simplify (+ 1/12 0) into 1/12 0.503 * [backup-simplify]: Simplify 1/12 into 1/12 0.506 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow 1 5) 120)) (* (/ (pow 1 3) 6) (/ (pow 0 1) 1)) (* (/ (pow 1 2) 2) (/ (pow 0 1) 1)) (* (/ (pow 1 1) 1) (/ (pow 0 2) 2)) (* (/ (pow 1 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 1) 1)))) into 1/120 0.507 * [backup-simplify]: Simplify (- 1) into -1 0.507 * [backup-simplify]: Simplify (- 1) into -1 0.507 * [backup-simplify]: Simplify (- 0) into 0 0.507 * [backup-simplify]: Simplify (- 1) into -1 0.508 * [backup-simplify]: Simplify (- 0) into 0 0.508 * [backup-simplify]: Simplify (- 1) into -1 0.508 * [backup-simplify]: Simplify (- 0) into 0 0.508 * [backup-simplify]: Simplify (- 1) into -1 0.509 * [backup-simplify]: Simplify (- 0) into 0 0.509 * [backup-simplify]: Simplify (- 0) into 0 0.509 * [backup-simplify]: Simplify (- 0) into 0 0.509 * [backup-simplify]: Simplify (- 0) into 0 0.512 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow -1 5) 120)) (* (/ (pow -1 3) 6) (/ (pow 0 1) 1)) (* (/ (pow -1 2) 2) (/ (pow 0 1) 1)) (* (/ (pow -1 1) 1) (/ (pow 0 2) 2)) (* (/ (pow -1 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 1) 1)))) into -1/120 0.513 * [backup-simplify]: Simplify (+ 1/120 -1/120) into 0 0.513 * [backup-simplify]: Simplify (- 0) into 0 0.513 * [backup-simplify]: Simplify (+ 0 0) into 0 0.513 * [backup-simplify]: Simplify 0 into 0 0.518 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow 1 6) 720)) (* (/ (pow 1 4) 24) (/ (pow 0 1) 1)) (* (/ (pow 1 3) 6) (/ (pow 0 1) 1)) (* (/ (pow 1 2) 2) (/ (pow 0 2) 2)) (* (/ (pow 1 2) 2) (/ (pow 0 1) 1)) (* (/ (pow 1 1) 1) (/ (pow 0 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 1 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 3) 6)) (* (/ (pow 0 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 1/720 0.519 * [backup-simplify]: Simplify (- 1) into -1 0.519 * [backup-simplify]: Simplify (- 1) into -1 0.519 * [backup-simplify]: Simplify (- 0) into 0 0.519 * [backup-simplify]: Simplify (- 1) into -1 0.520 * [backup-simplify]: Simplify (- 0) into 0 0.520 * [backup-simplify]: Simplify (- 1) into -1 0.520 * [backup-simplify]: Simplify (- 0) into 0 0.520 * [backup-simplify]: Simplify (- 1) into -1 0.521 * [backup-simplify]: Simplify (- 0) into 0 0.521 * [backup-simplify]: Simplify (- 1) into -1 0.521 * [backup-simplify]: Simplify (- 0) into 0 0.521 * [backup-simplify]: Simplify (- 0) into 0 0.521 * [backup-simplify]: Simplify (- 1) into -1 0.522 * [backup-simplify]: Simplify (- 0) into 0 0.522 * [backup-simplify]: Simplify (- 0) into 0 0.522 * [backup-simplify]: Simplify (- 0) into 0 0.522 * [backup-simplify]: Simplify (- 0) into 0 0.523 * [backup-simplify]: Simplify (- 0) into 0 0.523 * [backup-simplify]: Simplify (- 0) into 0 0.528 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow -1 6) 720)) (* (/ (pow -1 4) 24) (/ (pow 0 1) 1)) (* (/ (pow -1 3) 6) (/ (pow 0 1) 1)) (* (/ (pow -1 2) 2) (/ (pow 0 2) 2)) (* (/ (pow -1 2) 2) (/ (pow 0 1) 1)) (* (/ (pow -1 1) 1) (/ (pow 0 1) 1) (/ (pow 0 1) 1)) (* (/ (pow -1 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 3) 6)) (* (/ (pow 0 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 2) 2)) (* (/ (pow 0 1) 1)))) into 1/720 0.528 * [backup-simplify]: Simplify (+ 1/720 1/720) into 1/360 0.529 * [backup-simplify]: Simplify (- 0) into 0 0.529 * [backup-simplify]: Simplify (+ 1/360 0) into 1/360 0.529 * [backup-simplify]: Simplify 1/360 into 1/360