4.115 * [progress]: [Phase 1 of 3] Setting up. 0.001 * * * [progress]: [1/2] Preparing points 0.115 * * * [progress]: [2/2] Setting up program. 0.119 * [progress]: [Phase 2 of 3] Improving. 0.119 * [simplify]: Simplifying: (+ (- (exp x) 2.0) (exp (- x))) 0.119 * * [simplify]: Extracting # 0 : cost 0 0.119 * * [simplify]: Extracting # 1 : cost 0 0.119 * * [simplify]: Extracting # 2 : cost 0 0.120 * * [simplify]: Extracting # 3 : cost 0 0.120 * * [simplify]: Extracting # 4 : cost 0 0.120 * * [simplify]: Extracting # 5 : cost 0 0.120 * * [simplify]: iteration 0 : 7 enodes (cost 8 ) 0.123 * * [simplify]: Extracting # 0 : cost 0 0.123 * * [simplify]: Extracting # 1 : cost 0 0.123 * * [simplify]: Extracting # 2 : cost 0 0.123 * * [simplify]: iteration 1 : 14 enodes (cost 8 ) 0.127 * * [simplify]: Extracting # 0 : cost 0 0.128 * * [simplify]: Extracting # 1 : cost 0 0.128 * * [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 0.149 * * [simplify]: Extracting # 2 : cost 0 0.149 * * [simplify]: iteration 4 : 49 enodes (cost 8 ) 0.161 * * [simplify]: Extracting # 0 : cost 0 0.161 * * [simplify]: Extracting # 1 : cost 0 0.161 * * [simplify]: Extracting # 2 : cost 0 0.162 * * [simplify]: iteration 5 : 54 enodes (cost 8 ) 0.176 * * [simplify]: Extracting # 0 : cost 0 0.176 * * [simplify]: Extracting # 1 : cost 0 0.176 * * [simplify]: Extracting # 2 : cost 0 0.176 * * [simplify]: iteration 6 : 63 enodes (cost 8 ) 0.194 * * [simplify]: Extracting # 0 : cost 0 0.194 * * [simplify]: Extracting # 1 : cost 0 0.194 * * [simplify]: Extracting # 2 : cost 0 0.195 * * [simplify]: iteration 7 : 80 enodes (cost 8 ) 0.240 * * [simplify]: Extracting # 0 : cost 0 0.240 * * [simplify]: Extracting # 1 : cost 0 0.240 * * [simplify]: Extracting # 2 : cost 0 0.240 * * [simplify]: iteration 8 : 95 enodes (cost 8 ) 0.256 * * [simplify]: Extracting # 0 : cost 0 0.256 * * [simplify]: Extracting # 1 : cost 0 0.256 * * [simplify]: Extracting # 2 : cost 0 0.256 * * [simplify]: iteration 9 : 103 enodes (cost 8 ) 0.272 * * [simplify]: Extracting # 0 : cost 0 0.272 * * [simplify]: Extracting # 1 : cost 0 0.272 * * [simplify]: Extracting # 2 : cost 0 0.272 * * [simplify]: iteration 10 : 111 enodes (cost 8 ) 0.288 * * [simplify]: Extracting # 0 : cost 0 0.288 * * [simplify]: Extracting # 1 : cost 0 0.288 * * [simplify]: iteration done: 111 enodes (cost 8 ) 0.288 * [simplify]: Simplified to: (+ (- (exp x) 2.0) (exp (- x))) 0.289 * * [progress]: iteration 1 / 4 0.289 * * * [progress]: picking best candidate 0.290 * * * * [pick]: Picked # 0.290 * * * [progress]: localizing error 0.298 * * * [progress]: generating rewritten candidates 0.298 * * * * [progress]: [ 1 / 2 ] rewriting at (2) 0.367 * * * * [progress]: [ 2 / 2 ] rewriting at (2 1) 0.388 * * * [progress]: generating series expansions 0.388 * * * * [progress]: [ 1 / 2 ] generating series at (2) 0.388 * [backup-simplify]: Simplify (+ (- (exp x) 2.0) (exp (- x))) into (- (+ (exp x) (exp (- x))) 2.0) 0.388 * [approximate]: Taking taylor expansion of (- (+ (exp x) (exp (- x))) 2.0) in (x) around 0 0.388 * [taylor]: Taking taylor expansion of (- (+ (exp x) (exp (- x))) 2.0) in x 0.389 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x 0.389 * [taylor]: Taking taylor expansion of (exp x) in x 0.389 * [taylor]: Taking taylor expansion of x in x 0.389 * [backup-simplify]: Simplify 0 into 0 0.389 * [backup-simplify]: Simplify 1 into 1 0.389 * [backup-simplify]: Simplify (exp 0) into 1 0.389 * [taylor]: Taking taylor expansion of (exp (- x)) in x 0.389 * [taylor]: Taking taylor expansion of (- x) in x 0.389 * [taylor]: Taking taylor expansion of x in x 0.389 * [backup-simplify]: Simplify 0 into 0 0.389 * [backup-simplify]: Simplify 1 into 1 0.390 * [backup-simplify]: Simplify (- 0) into 0 0.390 * [backup-simplify]: Simplify (- 1) into -1 0.390 * [backup-simplify]: Simplify (exp 0) into 1 0.390 * [taylor]: Taking taylor expansion of 2.0 in x 0.390 * [backup-simplify]: Simplify 2.0 into 2.0 0.390 * [taylor]: Taking taylor expansion of (- (+ (exp x) (exp (- x))) 2.0) in x 0.390 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x 0.390 * [taylor]: Taking taylor expansion of (exp x) in x 0.390 * [taylor]: Taking taylor expansion of x in x 0.390 * [backup-simplify]: Simplify 0 into 0 0.390 * [backup-simplify]: Simplify 1 into 1 0.390 * [backup-simplify]: Simplify (exp 0) into 1 0.390 * [taylor]: Taking taylor expansion of (exp (- x)) in x 0.390 * [taylor]: Taking taylor expansion of (- x) in x 0.390 * [taylor]: Taking taylor expansion of x in x 0.390 * [backup-simplify]: Simplify 0 into 0 0.390 * [backup-simplify]: Simplify 1 into 1 0.391 * [backup-simplify]: Simplify (- 0) into 0 0.391 * [backup-simplify]: Simplify (- 1) into -1 0.391 * [backup-simplify]: Simplify (exp 0) into 1 0.391 * [taylor]: Taking taylor expansion of 2.0 in x 0.391 * [backup-simplify]: Simplify 2.0 into 2.0 0.392 * [backup-simplify]: Simplify (+ 1 1) into 2 0.392 * [backup-simplify]: Simplify (- 2.0) into (- 2.0) 0.393 * [backup-simplify]: Simplify (+ 2 (- 2.0)) into 0 0.393 * [backup-simplify]: Simplify 0 into 0 0.394 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow 1 1) 1)))) into 1 0.395 * [backup-simplify]: Simplify (- 1) into -1 0.396 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow -1 1) 1)))) into -1 0.396 * [backup-simplify]: Simplify (+ 1 -1) into 0 0.397 * [backup-simplify]: Simplify (- 0) into 0 0.397 * [backup-simplify]: Simplify (+ 0 0) into 0 0.397 * [backup-simplify]: Simplify 0 into 0 0.398 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow 1 2) 2)) (* (/ (pow 0 1) 1)))) into 1/2 0.399 * [backup-simplify]: Simplify (- 1) into -1 0.399 * [backup-simplify]: Simplify (- 0) into 0 0.400 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow -1 2) 2)) (* (/ (pow 0 1) 1)))) into 1/2 0.400 * [backup-simplify]: Simplify (+ 1/2 1/2) into 1 0.401 * [backup-simplify]: Simplify (- 0) into 0 0.401 * [backup-simplify]: Simplify (+ 1 0) into 1 0.401 * [backup-simplify]: Simplify 1 into 1 0.403 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow 1 3) 6)) (* (/ (pow 1 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 1) 1)))) into 1/6 0.403 * [backup-simplify]: Simplify (- 1) into -1 0.403 * [backup-simplify]: Simplify (- 1) into -1 0.404 * [backup-simplify]: Simplify (- 0) into 0 0.404 * [backup-simplify]: Simplify (- 0) into 0 0.405 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow -1 3) 6)) (* (/ (pow -1 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 1) 1)))) into -1/6 0.406 * [backup-simplify]: Simplify (+ 1/6 -1/6) into 0 0.406 * [backup-simplify]: Simplify (- 0) into 0 0.406 * [backup-simplify]: Simplify (+ 0 0) into 0 0.406 * [backup-simplify]: Simplify 0 into 0 0.409 * [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 0.409 * [backup-simplify]: Simplify (- 1) into -1 0.410 * [backup-simplify]: Simplify (- 1) into -1 0.410 * [backup-simplify]: Simplify (- 0) into 0 0.411 * [backup-simplify]: Simplify (- 1) into -1 0.411 * [backup-simplify]: Simplify (- 0) into 0 0.411 * [backup-simplify]: Simplify (- 0) into 0 0.412 * [backup-simplify]: Simplify (- 0) into 0 0.414 * [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 0.415 * [backup-simplify]: Simplify (+ 1/24 1/24) into 1/12 0.415 * [backup-simplify]: Simplify (- 0) into 0 0.416 * [backup-simplify]: Simplify (+ 1/12 0) into 1/12 0.416 * [backup-simplify]: Simplify 1/12 into 1/12 0.419 * [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 0.420 * [backup-simplify]: Simplify (- 1) into -1 0.420 * [backup-simplify]: Simplify (- 1) into -1 0.420 * [backup-simplify]: Simplify (- 0) into 0 0.420 * [backup-simplify]: Simplify (- 1) into -1 0.421 * [backup-simplify]: Simplify (- 0) into 0 0.421 * [backup-simplify]: Simplify (- 1) into -1 0.421 * [backup-simplify]: Simplify (- 0) into 0 0.421 * [backup-simplify]: Simplify (- 1) into -1 0.422 * [backup-simplify]: Simplify (- 0) into 0 0.422 * [backup-simplify]: Simplify (- 0) into 0 0.422 * [backup-simplify]: Simplify (- 0) into 0 0.422 * [backup-simplify]: Simplify (- 0) into 0 0.426 * [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 0.426 * [backup-simplify]: Simplify (+ 1/120 -1/120) into 0 0.426 * [backup-simplify]: Simplify (- 0) into 0 0.427 * [backup-simplify]: Simplify (+ 0 0) into 0 0.427 * [backup-simplify]: Simplify 0 into 0 0.432 * [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 0.432 * [backup-simplify]: Simplify (- 1) into -1 0.432 * [backup-simplify]: Simplify (- 1) into -1 0.433 * [backup-simplify]: Simplify (- 0) into 0 0.433 * [backup-simplify]: Simplify (- 1) into -1 0.433 * [backup-simplify]: Simplify (- 0) into 0 0.433 * [backup-simplify]: Simplify (- 1) into -1 0.434 * [backup-simplify]: Simplify (- 0) into 0 0.434 * [backup-simplify]: Simplify (- 1) into -1 0.434 * [backup-simplify]: Simplify (- 0) into 0 0.434 * [backup-simplify]: Simplify (- 1) into -1 0.435 * [backup-simplify]: Simplify (- 0) into 0 0.435 * [backup-simplify]: Simplify (- 0) into 0 0.435 * [backup-simplify]: Simplify (- 1) into -1 0.435 * [backup-simplify]: Simplify (- 0) into 0 0.435 * [backup-simplify]: Simplify (- 0) into 0 0.436 * [backup-simplify]: Simplify (- 0) into 0 0.436 * [backup-simplify]: Simplify (- 0) into 0 0.436 * [backup-simplify]: Simplify (- 0) into 0 0.436 * [backup-simplify]: Simplify (- 0) into 0 0.441 * [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 0.442 * [backup-simplify]: Simplify (+ 1/720 1/720) into 1/360 0.442 * [backup-simplify]: Simplify (- 0) into 0 0.442 * [backup-simplify]: Simplify (+ 1/360 0) into 1/360 0.442 * [backup-simplify]: Simplify 1/360 into 1/360