1.028 * [progress]: [Phase 1 of 3] Setting up. 0.002 * * * [progress]: [1/2] Preparing points 0.062 * * * [progress]: [2/2] Setting up program. 0.066 * [progress]: [Phase 2 of 3] Improving. 0.070 * [simplify]: Simplifying: (/ (- (+ f n)) (- f n)) 0.071 * * [simplify]: Extracting # 0 : cost 0 0.072 * * [simplify]: Extracting # 1 : cost 0 0.072 * * [simplify]: Extracting # 2 : cost 0 0.072 * * [simplify]: Extracting # 3 : cost 0 0.072 * * [simplify]: Extracting # 4 : cost 0 0.072 * * [simplify]: iteration 0 : 6 enodes (cost 8 ) 0.079 * * [simplify]: Extracting # 0 : cost 0 0.079 * * [simplify]: Extracting # 1 : cost 0 0.079 * * [simplify]: Extracting # 2 : cost 0 0.079 * * [simplify]: iteration 1 : 13 enodes (cost 8 ) 0.085 * * [simplify]: Extracting # 0 : cost 0 0.085 * * [simplify]: iteration 2 : 16 enodes (cost 8 ) 0.090 * * [simplify]: Extracting # 0 : cost 0 0.090 * * [simplify]: Extracting # 1 : cost 0 0.090 * * [simplify]: Extracting # 2 : cost 0 0.090 * * [simplify]: iteration 3 : 20 enodes (cost 8 ) 0.096 * * [simplify]: Extracting # 0 : cost 0 0.096 * * [simplify]: Extracting # 1 : cost 0 0.096 * * [simplify]: Extracting # 2 : cost 0 0.096 * * [simplify]: iteration 4 : 26 enodes (cost 8 ) 0.104 * * [simplify]: Extracting # 0 : cost 0 0.105 * * [simplify]: Extracting # 1 : cost 0 0.105 * * [simplify]: Extracting # 2 : cost 0 0.105 * * [simplify]: iteration 5 : 29 enodes (cost 8 ) 0.113 * * [simplify]: Extracting # 0 : cost 0 0.113 * * [simplify]: iteration 6 : 31 enodes (cost 8 ) 0.122 * * [simplify]: Extracting # 0 : cost 0 0.122 * * [simplify]: iteration done: 31 enodes (cost 8 ) 0.166 * [simplify]: Simplified to: (/ (- (+ f n)) (- f n)) 0.169 * * [progress]: iteration 1 / 4 0.169 * * * [progress]: picking best candidate 0.172 * * * * [pick]: Picked # 0.172 * * * [progress]: localizing error 0.189 * * * [progress]: generating rewritten candidates 0.189 * * * * [progress]: [ 1 / 1 ] rewriting at (2) 0.273 * * * [progress]: generating series expansions 0.274 * * * * [progress]: [ 1 / 1 ] generating series at (2) 0.281 * [backup-simplify]: Simplify (/ (- (+ f n)) (- f n)) into (* -1 (/ (+ n f) (- f n))) 0.281 * [approximate]: Taking taylor expansion of (* -1 (/ (+ n f) (- f n))) in (f n) around 0 0.282 * [taylor]: Taking taylor expansion of (* -1 (/ (+ n f) (- f n))) in n 0.282 * [taylor]: Taking taylor expansion of -1 in n 0.282 * [backup-simplify]: Simplify -1 into -1 0.282 * [taylor]: Taking taylor expansion of (/ (+ n f) (- f n)) in n 0.282 * [taylor]: Taking taylor expansion of (+ n f) in n 0.282 * [taylor]: Taking taylor expansion of n in n 0.283 * [backup-simplify]: Simplify 0 into 0 0.283 * [backup-simplify]: Simplify 1 into 1 0.283 * [taylor]: Taking taylor expansion of f in n 0.283 * [backup-simplify]: Simplify f into f 0.283 * [taylor]: Taking taylor expansion of (- f n) in n 0.283 * [taylor]: Taking taylor expansion of f in n 0.283 * [backup-simplify]: Simplify f into f 0.283 * [taylor]: Taking taylor expansion of n in n 0.283 * [backup-simplify]: Simplify 0 into 0 0.283 * [backup-simplify]: Simplify 1 into 1 0.284 * [backup-simplify]: Simplify (+ 0 f) into f 0.284 * [backup-simplify]: Simplify (- 0) into 0 0.284 * [backup-simplify]: Simplify (+ f 0) into f 0.284 * [backup-simplify]: Simplify (/ f f) into 1 0.284 * [taylor]: Taking taylor expansion of (* -1 (/ (+ n f) (- f n))) in f 0.284 * [taylor]: Taking taylor expansion of -1 in f 0.284 * [backup-simplify]: Simplify -1 into -1 0.284 * [taylor]: Taking taylor expansion of (/ (+ n f) (- f n)) in f 0.284 * [taylor]: Taking taylor expansion of (+ n f) in f 0.285 * [taylor]: Taking taylor expansion of n in f 0.285 * [backup-simplify]: Simplify n into n 0.285 * [taylor]: Taking taylor expansion of f in f 0.285 * [backup-simplify]: Simplify 0 into 0 0.285 * [backup-simplify]: Simplify 1 into 1 0.285 * [taylor]: Taking taylor expansion of (- f n) in f 0.285 * [taylor]: Taking taylor expansion of f in f 0.285 * [backup-simplify]: Simplify 0 into 0 0.285 * [backup-simplify]: Simplify 1 into 1 0.285 * [taylor]: Taking taylor expansion of n in f 0.285 * [backup-simplify]: Simplify n into n 0.285 * [backup-simplify]: Simplify (+ n 0) into n 0.285 * [backup-simplify]: Simplify (- n) into (- n) 0.285 * [backup-simplify]: Simplify (+ 0 (- n)) into (- n) 0.285 * [backup-simplify]: Simplify (/ n (- n)) into -1 0.285 * [taylor]: Taking taylor expansion of (* -1 (/ (+ n f) (- f n))) in f 0.285 * [taylor]: Taking taylor expansion of -1 in f 0.285 * [backup-simplify]: Simplify -1 into -1 0.285 * [taylor]: Taking taylor expansion of (/ (+ n f) (- f n)) in f 0.285 * [taylor]: Taking taylor expansion of (+ n f) in f 0.285 * [taylor]: Taking taylor expansion of n in f 0.285 * [backup-simplify]: Simplify n into n 0.285 * [taylor]: Taking taylor expansion of f in f 0.285 * [backup-simplify]: Simplify 0 into 0 0.285 * [backup-simplify]: Simplify 1 into 1 0.285 * [taylor]: Taking taylor expansion of (- f n) in f 0.285 * [taylor]: Taking taylor expansion of f in f 0.285 * [backup-simplify]: Simplify 0 into 0 0.285 * [backup-simplify]: Simplify 1 into 1 0.286 * [taylor]: Taking taylor expansion of n in f 0.286 * [backup-simplify]: Simplify n into n 0.286 * [backup-simplify]: Simplify (+ n 0) into n 0.286 * [backup-simplify]: Simplify (- n) into (- n) 0.286 * [backup-simplify]: Simplify (+ 0 (- n)) into (- n) 0.286 * [backup-simplify]: Simplify (/ n (- n)) into -1 0.287 * [backup-simplify]: Simplify (* -1 -1) into 1 0.287 * [taylor]: Taking taylor expansion of 1 in n 0.287 * [backup-simplify]: Simplify 1 into 1 0.287 * [backup-simplify]: Simplify 1 into 1 0.288 * [backup-simplify]: Simplify (+ 0 1) into 1 0.289 * [backup-simplify]: Simplify (- 0) into 0 0.289 * [backup-simplify]: Simplify (+ 1 0) into 1 0.289 * [backup-simplify]: Simplify (- (/ 1 (- n)) (+ (* -1 (/ 1 (- n))))) into (- (* 2 (/ 1 n))) 0.290 * [backup-simplify]: Simplify (+ (* -1 (- (* 2 (/ 1 n)))) (* 0 -1)) into (* 2 (/ 1 n)) 0.290 * [taylor]: Taking taylor expansion of (* 2 (/ 1 n)) in n 0.290 * [taylor]: Taking taylor expansion of 2 in n 0.290 * [backup-simplify]: Simplify 2 into 2 0.290 * [taylor]: Taking taylor expansion of (/ 1 n) in n 0.290 * [taylor]: Taking taylor expansion of n in n 0.290 * [backup-simplify]: Simplify 0 into 0 0.290 * [backup-simplify]: Simplify 1 into 1 0.291 * [backup-simplify]: Simplify (/ 1 1) into 1 0.292 * [backup-simplify]: Simplify (- (+ (* 1 (/ 0 1)))) into 0 0.292 * [backup-simplify]: Simplify (+ (* 2 0) (* 0 1)) into 0 0.292 * [backup-simplify]: Simplify 0 into 0 0.293 * [backup-simplify]: Simplify 0 into 0 0.293 * [backup-simplify]: Simplify (+ 0 0) into 0 0.293 * [backup-simplify]: Simplify (- 0) into 0 0.294 * [backup-simplify]: Simplify (+ 0 0) into 0