3.436 * [progress]: [Phase 1 of 3] Setting up. 0.001 * * * [progress]: [1/2] Preparing points 0.185 * * * [progress]: [2/2] Setting up program. 0.188 * [progress]: [Phase 2 of 3] Improving. 0.189 * [simplify]: Simplifying: (+ (- (exp x) 2.0) (exp (- x))) 0.189 * * [simplify]: Extracting # 0 : cost 0 0.189 * * [simplify]: Extracting # 1 : cost 0 0.189 * * [simplify]: Extracting # 2 : cost 0 0.189 * * [simplify]: Extracting # 3 : cost 0 0.189 * * [simplify]: Extracting # 4 : cost 0 0.189 * * [simplify]: Extracting # 5 : cost 0 0.189 * * [simplify]: iteration 0 : 7 enodes (cost 8 ) 0.192 * * [simplify]: Extracting # 0 : cost 0 0.192 * * [simplify]: Extracting # 1 : cost 0 0.192 * * [simplify]: Extracting # 2 : cost 0 0.192 * * [simplify]: iteration 1 : 14 enodes (cost 8 ) 0.196 * * [simplify]: Extracting # 0 : cost 0 0.196 * * [simplify]: Extracting # 1 : cost 0 0.196 * * [simplify]: Extracting # 2 : cost 0 0.196 * * [simplify]: iteration 2 : 26 enodes (cost 8 ) 0.205 * * [simplify]: Extracting # 0 : cost 0 0.205 * * [simplify]: Extracting # 1 : cost 0 0.205 * * [simplify]: Extracting # 2 : cost 0 0.205 * * [simplify]: iteration 3 : 40 enodes (cost 8 ) 0.217 * * [simplify]: Extracting # 0 : cost 0 0.217 * * [simplify]: Extracting # 1 : cost 0 0.217 * * [simplify]: Extracting # 2 : cost 0 0.217 * * [simplify]: iteration 4 : 49 enodes (cost 8 ) 0.228 * * [simplify]: Extracting # 0 : cost 0 0.229 * * [simplify]: Extracting # 1 : cost 0 0.229 * * [simplify]: Extracting # 2 : cost 0 0.229 * * [simplify]: iteration 5 : 54 enodes (cost 8 ) 0.236 * * [simplify]: Extracting # 0 : cost 0 0.237 * * [simplify]: Extracting # 1 : cost 0 0.237 * * [simplify]: Extracting # 2 : cost 0 0.237 * * [simplify]: iteration 6 : 63 enodes (cost 8 ) 0.245 * * [simplify]: Extracting # 0 : cost 0 0.246 * * [simplify]: Extracting # 1 : cost 0 0.246 * * [simplify]: Extracting # 2 : cost 0 0.246 * * [simplify]: iteration 7 : 80 enodes (cost 8 ) 0.263 * * [simplify]: Extracting # 0 : cost 0 0.263 * * [simplify]: Extracting # 1 : cost 0 0.263 * * [simplify]: Extracting # 2 : cost 0 0.263 * * [simplify]: iteration 8 : 95 enodes (cost 8 ) 0.299 * * [simplify]: Extracting # 0 : cost 0 0.299 * * [simplify]: Extracting # 1 : cost 0 0.299 * * [simplify]: Extracting # 2 : cost 0 0.299 * * [simplify]: iteration 9 : 103 enodes (cost 8 ) 0.329 * * [simplify]: Extracting # 0 : cost 0 0.329 * * [simplify]: Extracting # 1 : cost 0 0.329 * * [simplify]: Extracting # 2 : cost 0 0.329 * * [simplify]: iteration 10 : 111 enodes (cost 8 ) 0.345 * * [simplify]: Extracting # 0 : cost 0 0.345 * * [simplify]: Extracting # 1 : cost 0 0.345 * * [simplify]: iteration done: 111 enodes (cost 8 ) 0.346 * [simplify]: Simplified to: (+ (- (exp x) 2.0) (exp (- x))) 0.346 * * [progress]: iteration 1 / 4 0.346 * * * [progress]: picking best candidate 0.348 * * * * [pick]: Picked # 0.348 * * * [progress]: localizing error 0.356 * * * [progress]: generating rewritten candidates 0.356 * * * * [progress]: [ 1 / 2 ] rewriting at (2) 0.423 * * * * [progress]: [ 2 / 2 ] rewriting at (2 1) 0.443 * * * [progress]: generating series expansions 0.443 * * * * [progress]: [ 1 / 2 ] generating series at (2) 0.443 * [backup-simplify]: Simplify (+ (- (exp x) 2.0) (exp (- x))) into (- (+ (exp x) (exp (- x))) 2.0) 0.443 * [approximate]: Taking taylor expansion of (- (+ (exp x) (exp (- x))) 2.0) in (x) around 0 0.443 * [taylor]: Taking taylor expansion of (- (+ (exp x) (exp (- x))) 2.0) in x 0.443 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x 0.443 * [taylor]: Taking taylor expansion of (exp x) in x 0.443 * [taylor]: Taking taylor expansion of x in x 0.443 * [backup-simplify]: Simplify 0 into 0 0.443 * [backup-simplify]: Simplify 1 into 1 0.443 * [backup-simplify]: Simplify (exp 0) into 1 0.443 * [taylor]: Taking taylor expansion of (exp (- x)) in x 0.443 * [taylor]: Taking taylor expansion of (- x) in x 0.443 * [taylor]: Taking taylor expansion of x in x 0.443 * [backup-simplify]: Simplify 0 into 0 0.443 * [backup-simplify]: Simplify 1 into 1 0.444 * [backup-simplify]: Simplify (- 0) into 0 0.444 * [backup-simplify]: Simplify (- 1) into -1 0.445 * [backup-simplify]: Simplify (exp 0) into 1 0.445 * [taylor]: Taking taylor expansion of 2.0 in x 0.445 * [backup-simplify]: Simplify 2.0 into 2.0 0.445 * [taylor]: Taking taylor expansion of (- (+ (exp x) (exp (- x))) 2.0) in x 0.445 * [taylor]: Taking taylor expansion of (+ (exp x) (exp (- x))) in x 0.445 * [taylor]: Taking taylor expansion of (exp x) in x 0.445 * [taylor]: Taking taylor expansion of x in x 0.445 * [backup-simplify]: Simplify 0 into 0 0.445 * [backup-simplify]: Simplify 1 into 1 0.445 * [backup-simplify]: Simplify (exp 0) into 1 0.445 * [taylor]: Taking taylor expansion of (exp (- x)) in x 0.445 * [taylor]: Taking taylor expansion of (- x) in x 0.445 * [taylor]: Taking taylor expansion of x in x 0.445 * [backup-simplify]: Simplify 0 into 0 0.445 * [backup-simplify]: Simplify 1 into 1 0.445 * [backup-simplify]: Simplify (- 0) into 0 0.445 * [backup-simplify]: Simplify (- 1) into -1 0.446 * [backup-simplify]: Simplify (exp 0) into 1 0.446 * [taylor]: Taking taylor expansion of 2.0 in x 0.446 * [backup-simplify]: Simplify 2.0 into 2.0 0.446 * [backup-simplify]: Simplify (+ 1 1) into 2 0.446 * [backup-simplify]: Simplify (- 2.0) into (- 2.0) 0.447 * [backup-simplify]: Simplify (+ 2 (- 2.0)) into 0 0.447 * [backup-simplify]: Simplify 0 into 0 0.448 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow 1 1) 1)))) into 1 0.449 * [backup-simplify]: Simplify (- 1) into -1 0.450 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow -1 1) 1)))) into -1 0.450 * [backup-simplify]: Simplify (+ 1 -1) into 0 0.451 * [backup-simplify]: Simplify (- 0) into 0 0.451 * [backup-simplify]: Simplify (+ 0 0) into 0 0.451 * [backup-simplify]: Simplify 0 into 0 0.452 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow 1 2) 2)) (* (/ (pow 0 1) 1)))) into 1/2 0.453 * [backup-simplify]: Simplify (- 1) into -1 0.453 * [backup-simplify]: Simplify (- 0) into 0 0.455 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow -1 2) 2)) (* (/ (pow 0 1) 1)))) into 1/2 0.455 * [backup-simplify]: Simplify (+ 1/2 1/2) into 1 0.455 * [backup-simplify]: Simplify (- 0) into 0 0.456 * [backup-simplify]: Simplify (+ 1 0) into 1 0.456 * [backup-simplify]: Simplify 1 into 1 0.458 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow 1 3) 6)) (* (/ (pow 1 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 1) 1)))) into 1/6 0.458 * [backup-simplify]: Simplify (- 1) into -1 0.459 * [backup-simplify]: Simplify (- 1) into -1 0.459 * [backup-simplify]: Simplify (- 0) into 0 0.459 * [backup-simplify]: Simplify (- 0) into 0 0.461 * [backup-simplify]: Simplify (* (exp 0) (+ (* (/ (pow -1 3) 6)) (* (/ (pow -1 1) 1) (/ (pow 0 1) 1)) (* (/ (pow 0 1) 1)))) into -1/6 0.461 * [backup-simplify]: Simplify (+ 1/6 -1/6) into 0 0.462 * [backup-simplify]: Simplify (- 0) into 0 0.462 * [backup-simplify]: Simplify (+ 0 0) into 0 0.462 * [backup-simplify]: Simplify 0 into 0 0.464 * [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 0.465 * [backup-simplify]: Simplify (- 1) into -1 0.465 * [backup-simplify]: Simplify (- 1) into -1 0.465 * [backup-simplify]: Simplify (- 0) into 0 0.466 * [backup-simplify]: Simplify (- 1) into -1 0.466 * [backup-simplify]: Simplify (- 0) into 0 0.466 * [backup-simplify]: Simplify (- 0) into 0 0.466 * [backup-simplify]: Simplify (- 0) into 0 0.469 * [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 0.470 * [backup-simplify]: Simplify (+ 1/24 1/24) into 1/12 0.470 * [backup-simplify]: Simplify (- 0) into 0 0.470 * [backup-simplify]: Simplify (+ 1/12 0) into 1/12 0.470 * [backup-simplify]: Simplify 1/12 into 1/12 0.474 * [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 0.474 * [backup-simplify]: Simplify (- 1) into -1 0.474 * [backup-simplify]: Simplify (- 1) into -1 0.475 * [backup-simplify]: Simplify (- 0) into 0 0.475 * [backup-simplify]: Simplify (- 1) into -1 0.475 * [backup-simplify]: Simplify (- 0) into 0 0.475 * [backup-simplify]: Simplify (- 1) into -1 0.476 * [backup-simplify]: Simplify (- 0) into 0 0.476 * [backup-simplify]: Simplify (- 1) into -1 0.476 * [backup-simplify]: Simplify (- 0) into 0 0.476 * [backup-simplify]: Simplify (- 0) into 0 0.480 * [backup-simplify]: Simplify (- 0) into 0 0.480 * [backup-simplify]: Simplify (- 0) into 0 0.483 * [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 0.483 * [backup-simplify]: Simplify (+ 1/120 -1/120) into 0 0.484 * [backup-simplify]: Simplify (- 0) into 0 0.484 * [backup-simplify]: Simplify (+ 0 0) into 0 0.484 * [backup-simplify]: Simplify 0 into 0 0.489 * [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 0.490 * [backup-simplify]: Simplify (- 1) into -1 0.490 * [backup-simplify]: Simplify (- 1) into -1 0.490 * [backup-simplify]: Simplify (- 0) into 0 0.491 * [backup-simplify]: Simplify (- 1) into -1 0.491 * [backup-simplify]: Simplify (- 0) into 0 0.491 * [backup-simplify]: Simplify (- 1) into -1 0.491 * [backup-simplify]: Simplify (- 0) into 0 0.492 * [backup-simplify]: Simplify (- 1) into -1 0.492 * [backup-simplify]: Simplify (- 0) into 0 0.492 * [backup-simplify]: Simplify (- 1) into -1 0.492 * [backup-simplify]: Simplify (- 0) into 0 0.492 * [backup-simplify]: Simplify (- 0) into 0 0.493 * [backup-simplify]: Simplify (- 1) into -1 0.493 * [backup-simplify]: Simplify (- 0) into 0 0.493 * [backup-simplify]: Simplify (- 0) into 0 0.493 * [backup-simplify]: Simplify (- 0) into 0 0.494 * [backup-simplify]: Simplify (- 0) into 0 0.494 * [backup-simplify]: Simplify (- 0) into 0 0.494 * [backup-simplify]: Simplify (- 0) into 0 0.500 * [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 0.500 * [backup-simplify]: Simplify (+ 1/720 1/720) into 1/360 0.500 * [backup-simplify]: Simplify (- 0) into 0 0.501 * [backup-simplify]: Simplify (+ 1/360 0) into 1/360 0.501 * [backup-simplify]: Simplify 1/360 into 1/360