1.885 * [progress]: [Phase 1 of 3] Setting up. 0.001 * * * [progress]: [1/2] Preparing points 0.031 * * * [progress]: [2/2] Setting up program. 0.033 * [progress]: [Phase 2 of 3] Improving. 0.033 * [simplify]: Simplifying using # : (- (pow x 4.0) (pow y 4.0)) 0.034 * * [simplify]: iteration 0 : 6 enodes (cost 7 ) 0.035 * * [simplify]: iteration 1 : 14 enodes (cost 7 ) 0.037 * * [simplify]: iteration 2 : 29 enodes (cost 7 ) 0.041 * * [simplify]: iteration 3 : 69 enodes (cost 7 ) 0.052 * * [simplify]: iteration 4 : 185 enodes (cost 7 ) 0.101 * * [simplify]: iteration 5 : 622 enodes (cost 7 ) 0.341 * * [simplify]: iteration 6 : 2629 enodes (cost 7 ) 1.434 * * [simplify]: iteration done : 5000 enodes (cost 7 ) 1.434 * [simplify]: Simplified to: (- (pow x 4.0) (pow y 4.0)) 1.434 * * [progress]: iteration 1 / 4 1.434 * * * [progress]: picking best candidate 1.436 * * * * [pick]: Picked # 1.436 * * * [progress]: localizing error 1.442 * * * [progress]: generating rewritten candidates 1.442 * * * * [progress]: [ 1 / 1 ] rewriting at (2) 1.453 * * * [progress]: generating series expansions 1.454 * * * * [progress]: [ 1 / 1 ] generating series at (2) 1.454 * [approximate]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in (x y) around 0 1.454 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in y 1.454 * [taylor]: Taking taylor expansion of (pow x 4) in y 1.454 * [taylor]: Taking taylor expansion of x in y 1.454 * [taylor]: Taking taylor expansion of (pow y 4) in y 1.454 * [taylor]: Taking taylor expansion of y in y 1.454 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in x 1.454 * [taylor]: Taking taylor expansion of (pow x 4) in x 1.454 * [taylor]: Taking taylor expansion of x in x 1.454 * [taylor]: Taking taylor expansion of (pow y 4) in x 1.454 * [taylor]: Taking taylor expansion of y in x 1.454 * [taylor]: Taking taylor expansion of (- (pow x 4) (pow y 4)) in x 1.454 * [taylor]: Taking taylor expansion of (pow x 4) in x 1.454 * [taylor]: Taking taylor expansion of x in x 1.454 * [taylor]: Taking taylor expansion of (pow y 4) in x 1.454 * [taylor]: Taking taylor expansion of y in x 1.455 * [taylor]: Taking taylor expansion of (- (pow y 4)) in y 1.455 * [taylor]: Taking taylor expansion of (pow y 4) in y 1.455 * [taylor]: Taking taylor expansion of y in y 1.456 * [taylor]: Taking taylor expansion of 0 in y 1.457 * [taylor]: Taking taylor expansion of 0 in y 1.459 * [taylor]: Taking taylor expansion of 0 in y 1.459 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in (x y) around 0 1.459 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in y 1.459 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in y 1.459 * [taylor]: Taking taylor expansion of (pow x 4) in y 1.459 * [taylor]: Taking taylor expansion of x in y 1.459 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y 1.459 * [taylor]: Taking taylor expansion of (pow y 4) in y 1.459 * [taylor]: Taking taylor expansion of y in y 1.460 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x 1.460 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x 1.460 * [taylor]: Taking taylor expansion of (pow x 4) in x 1.460 * [taylor]: Taking taylor expansion of x in x 1.461 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x 1.461 * [taylor]: Taking taylor expansion of (pow y 4) in x 1.461 * [taylor]: Taking taylor expansion of y in x 1.461 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x 1.461 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x 1.461 * [taylor]: Taking taylor expansion of (pow x 4) in x 1.461 * [taylor]: Taking taylor expansion of x in x 1.462 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x 1.462 * [taylor]: Taking taylor expansion of (pow y 4) in x 1.462 * [taylor]: Taking taylor expansion of y in x 1.462 * [taylor]: Taking taylor expansion of 1 in y 1.464 * [taylor]: Taking taylor expansion of 0 in y 1.465 * [taylor]: Taking taylor expansion of 0 in y 1.467 * [taylor]: Taking taylor expansion of 0 in y 1.469 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 4))) in y 1.469 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y 1.469 * [taylor]: Taking taylor expansion of (pow y 4) in y 1.469 * [taylor]: Taking taylor expansion of y in y 1.473 * [taylor]: Taking taylor expansion of 0 in y 1.478 * [taylor]: Taking taylor expansion of 0 in y 1.480 * [approximate]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in (x y) around 0 1.480 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in y 1.480 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in y 1.480 * [taylor]: Taking taylor expansion of (pow x 4) in y 1.480 * [taylor]: Taking taylor expansion of x in y 1.481 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y 1.481 * [taylor]: Taking taylor expansion of (pow y 4) in y 1.481 * [taylor]: Taking taylor expansion of y in y 1.481 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x 1.481 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x 1.481 * [taylor]: Taking taylor expansion of (pow x 4) in x 1.481 * [taylor]: Taking taylor expansion of x in x 1.482 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x 1.482 * [taylor]: Taking taylor expansion of (pow y 4) in x 1.482 * [taylor]: Taking taylor expansion of y in x 1.482 * [taylor]: Taking taylor expansion of (- (/ 1 (pow x 4)) (/ 1 (pow y 4))) in x 1.482 * [taylor]: Taking taylor expansion of (/ 1 (pow x 4)) in x 1.482 * [taylor]: Taking taylor expansion of (pow x 4) in x 1.482 * [taylor]: Taking taylor expansion of x in x 1.483 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in x 1.483 * [taylor]: Taking taylor expansion of (pow y 4) in x 1.483 * [taylor]: Taking taylor expansion of y in x 1.484 * [taylor]: Taking taylor expansion of 1 in y 1.485 * [taylor]: Taking taylor expansion of 0 in y 1.487 * [taylor]: Taking taylor expansion of 0 in y 1.488 * [taylor]: Taking taylor expansion of 0 in y 1.490 * [taylor]: Taking taylor expansion of (- (/ 1 (pow y 4))) in y 1.490 * [taylor]: Taking taylor expansion of (/ 1 (pow y 4)) in y 1.490 * [taylor]: Taking taylor expansion of (pow y 4) in y 1.490 * [taylor]: Taking taylor expansion of y in y 1.494 * [taylor]: Taking taylor expansion of 0 in y 1.498 * [taylor]: Taking taylor expansion of 0 in y 1.500 * * * [progress]: simplifying candidates 1.501 * [simplify]: Simplifying using # : (/ (exp (pow x 4.0)) (exp (pow y 4.0))) (log (- (pow x 4.0) (pow y 4.0))) (exp (- (pow x 4.0) (pow y 4.0))) (* (cbrt (- (pow x 4.0) (pow y 4.0))) (cbrt (- (pow x 4.0) (pow y 4.0)))) (cbrt (- (pow x 4.0) (pow y 4.0))) (* (* (- (pow x 4.0) (pow y 4.0)) (- (pow x 4.0) (pow y 4.0))) (- (pow x 4.0) (pow y 4.0))) (sqrt (- (pow x 4.0) (pow y 4.0))) (sqrt (- (pow x 4.0) (pow y 4.0))) (- (pow (pow x 4.0) 3) (pow (pow y 4.0) 3)) (+ (* (pow x 4.0) (pow x 4.0)) (+ (* (pow y 4.0) (pow y 4.0)) (* (pow x 4.0) (pow y 4.0)))) (- (pow y 4.0)) (- (* (pow x 4.0) (pow x 4.0)) (* (pow y 4.0) (pow y 4.0))) (+ (pow x 4.0) (pow y 4.0)) (+ (pow (sqrt x) 4.0) (pow (sqrt y) 4.0)) (- (pow (sqrt x) 4.0) (pow (sqrt y) 4.0)) (+ (pow (sqrt x) 4.0) (sqrt (pow y 4.0))) (- (pow (sqrt x) 4.0) (sqrt (pow y 4.0))) (+ (pow (sqrt x) 4.0) (pow y (/ 4.0 2))) (- (pow (sqrt x) 4.0) (pow y (/ 4.0 2))) (+ (sqrt (pow x 4.0)) (pow (sqrt y) 4.0)) (- (sqrt (pow x 4.0)) (pow (sqrt y) 4.0)) (+ (sqrt (pow x 4.0)) (sqrt (pow y 4.0))) (- (sqrt (pow x 4.0)) (sqrt (pow y 4.0))) (+ (sqrt (pow x 4.0)) (pow y (/ 4.0 2))) (- (sqrt (pow x 4.0)) (pow y (/ 4.0 2))) (+ (pow x (/ 4.0 2)) (pow (sqrt y) 4.0)) (- (pow x (/ 4.0 2)) (pow (sqrt y) 4.0)) (+ (pow x (/ 4.0 2)) (sqrt (pow y 4.0))) (- (pow x (/ 4.0 2)) (sqrt (pow y 4.0))) (+ (pow x (/ 4.0 2)) (pow y (/ 4.0 2))) (- (pow x (/ 4.0 2)) (pow y (/ 4.0 2))) (- (pow x 4.0) (pow y 4.0)) (- (pow x 4.0) (pow y 4.0)) (- (pow y 4.0)) 0 (- (pow x 4) (pow y 4)) (- (pow x 4) (pow y 4)) 1.503 * * [simplify]: iteration 0 : 61 enodes (cost 356 ) 1.515 * * [simplify]: iteration 1 : 127 enodes (cost 345 ) 1.533 * * [simplify]: iteration 2 : 304 enodes (cost 331 )