50.871 * [progress]: [Phase 1 of 3] Setting up. 0.001 * * * [progress]: [1/2] Preparing points 0.052 * * * [progress]: [2/2] Setting up program. 0.055 * [progress]: [Phase 2 of 3] Improving. 0.056 * [simplify]: Simplifying: (- (+ (- (* d1 d2) (* d1 d3)) (* d4 d1)) (* d1 d1)) 0.056 * * [simplify]: Extracting # 0 : cost 0 0.056 * * [simplify]: Extracting # 1 : cost 0 0.056 * * [simplify]: Extracting # 2 : cost 0 0.056 * * [simplify]: Extracting # 3 : cost 0 0.056 * * [simplify]: Extracting # 4 : cost 0 0.056 * * [simplify]: Extracting # 5 : cost 0 0.056 * * [simplify]: Extracting # 6 : cost 0 0.056 * * [simplify]: iteration 0 : 11 enodes (cost 15 ) 0.058 * * [simplify]: Extracting # 0 : cost 0 0.058 * * [simplify]: Extracting # 1 : cost 0 0.058 * * [simplify]: Extracting # 2 : cost 0 0.058 * * [simplify]: Extracting # 3 : cost 0 0.058 * * [simplify]: Extracting # 4 : cost 0 0.058 * * [simplify]: iteration 1 : 25 enodes (cost 13 ) 0.062 * * [simplify]: Extracting # 0 : cost 0 0.062 * * [simplify]: Extracting # 1 : cost 0 0.063 * * [simplify]: Extracting # 2 : cost 0 0.063 * * [simplify]: Extracting # 3 : cost 0 0.063 * * [simplify]: iteration 2 : 69 enodes (cost 11 ) 0.101 * * [simplify]: Extracting # 0 : cost 0 0.101 * * [simplify]: Extracting # 1 : cost 0 0.101 * * [simplify]: Extracting # 2 : cost 0 0.101 * * [simplify]: Extracting # 3 : cost 0 0.102 * * [simplify]: Extracting # 4 : cost 0 0.102 * * [simplify]: iteration 3 : 188 enodes (cost 9 ) 0.188 * * [simplify]: Extracting # 0 : cost 0 0.189 * * [simplify]: Extracting # 1 : cost 0 0.190 * * [simplify]: Extracting # 2 : cost 0 0.191 * * [simplify]: Extracting # 3 : cost 0 0.191 * * [simplify]: iteration 4 : 410 enodes (cost 9 ) 0.552 * * [simplify]: Extracting # 0 : cost 0 0.553 * * [simplify]: Extracting # 1 : cost 0 0.554 * * [simplify]: Extracting # 2 : cost 0 0.555 * * [simplify]: Extracting # 3 : cost 0 0.556 * * [simplify]: iteration 5 : 693 enodes (cost 9 ) 0.930 * * [simplify]: Extracting # 0 : cost 0 0.931 * * [simplify]: Extracting # 1 : cost 0 0.931 * * [simplify]: Extracting # 2 : cost 0 0.932 * * [simplify]: Extracting # 3 : cost 0 0.932 * * [simplify]: Extracting # 4 : cost 0 0.933 * * [simplify]: iteration 6 : 946 enodes (cost 9 ) 1.507 * * [simplify]: Extracting # 0 : cost 0 1.509 * * [simplify]: Extracting # 1 : cost 0 1.510 * * [simplify]: Extracting # 2 : cost 0 1.511 * * [simplify]: iteration 7 : 1263 enodes (cost 9 ) 2.422 * * [simplify]: Extracting # 0 : cost 0 2.424 * * [simplify]: Extracting # 1 : cost 0 2.425 * * [simplify]: Extracting # 2 : cost 0 2.426 * * [simplify]: iteration 8 : 1510 enodes (cost 9 ) 3.198 * * [simplify]: Extracting # 0 : cost 0 3.199 * * [simplify]: Extracting # 1 : cost 0 3.200 * * [simplify]: iteration 9 : 1595 enodes (cost 9 ) 3.908 * * [simplify]: Extracting # 0 : cost 0 3.909 * * [simplify]: iteration done: 1595 enodes (cost 9 ) 3.910 * [simplify]: Simplified to: (* d1 (+ (- d4 d1) (- d2 d3))) 3.913 * * [progress]: iteration 1 / 4 3.913 * * * [progress]: picking best candidate 3.916 * * * * [pick]: Picked # 3.916 * * * [progress]: localizing error 3.924 * * * [progress]: generating rewritten candidates 3.924 * * * * [progress]: [ 1 / 2 ] rewriting at (2) 4.098 * * * * [progress]: [ 2 / 2 ] rewriting at (2 2) 4.166 * * * [progress]: generating series expansions 4.166 * * * * [progress]: [ 1 / 2 ] generating series at (2) 4.166 * [backup-simplify]: Simplify (* d1 (+ (- d4 d1) (- d2 d3))) into (* d1 (- (+ d4 d2) (+ d1 d3))) 4.166 * [approximate]: Taking taylor expansion of (* d1 (- (+ d4 d2) (+ d1 d3))) in (d1 d4 d2 d3) around 0 4.166 * [taylor]: Taking taylor expansion of (* d1 (- (+ d4 d2) (+ d1 d3))) in d3 4.166 * [taylor]: Taking taylor expansion of d1 in d3 4.166 * [backup-simplify]: Simplify d1 into d1 4.166 * [taylor]: Taking taylor expansion of (- (+ d4 d2) (+ d1 d3)) in d3 4.166 * [taylor]: Taking taylor expansion of (+ d4 d2) in d3 4.166 * [taylor]: Taking taylor expansion of d4 in d3 4.166 * [backup-simplify]: Simplify d4 into d4 4.166 * [taylor]: Taking taylor expansion of d2 in d3 4.166 * [backup-simplify]: Simplify d2 into d2 4.166 * [taylor]: Taking taylor expansion of (+ d1 d3) in d3 4.166 * [taylor]: Taking taylor expansion of d1 in d3 4.166 * [backup-simplify]: Simplify d1 into d1 4.166 * [taylor]: Taking taylor expansion of d3 in d3 4.166 * [backup-simplify]: Simplify 0 into 0 4.166 * [backup-simplify]: Simplify 1 into 1 4.166 * [taylor]: Taking taylor expansion of (* d1 (- (+ d4 d2) (+ d1 d3))) in d2 4.166 * [taylor]: Taking taylor expansion of d1 in d2 4.166 * [backup-simplify]: Simplify d1 into d1 4.166 * [taylor]: Taking taylor expansion of (- (+ d4 d2) (+ d1 d3)) in d2 4.166 * [taylor]: Taking taylor expansion of (+ d4 d2) in d2 4.166 * [taylor]: Taking taylor expansion of d4 in d2 4.167 * [backup-simplify]: Simplify d4 into d4 4.167 * [taylor]: Taking taylor expansion of d2 in d2 4.167 * [backup-simplify]: Simplify 0 into 0 4.167 * [backup-simplify]: Simplify 1 into 1 4.167 * [taylor]: Taking taylor expansion of (+ d1 d3) in d2 4.167 * [taylor]: Taking taylor expansion of d1 in d2 4.167 * [backup-simplify]: Simplify d1 into d1 4.167 * [taylor]: Taking taylor expansion of d3 in d2 4.167 * [backup-simplify]: Simplify d3 into d3 4.167 * [taylor]: Taking taylor expansion of (* d1 (- (+ d4 d2) (+ d1 d3))) in d4 4.167 * [taylor]: Taking taylor expansion of d1 in d4 4.167 * [backup-simplify]: Simplify d1 into d1 4.167 * [taylor]: Taking taylor expansion of (- (+ d4 d2) (+ d1 d3)) in d4 4.167 * [taylor]: Taking taylor expansion of (+ d4 d2) in d4 4.167 * [taylor]: Taking taylor expansion of d4 in d4 4.167 * [backup-simplify]: Simplify 0 into 0 4.167 * [backup-simplify]: Simplify 1 into 1 4.167 * [taylor]: Taking taylor expansion of d2 in d4 4.167 * [backup-simplify]: Simplify d2 into d2 4.167 * [taylor]: Taking taylor expansion of (+ d1 d3) in d4 4.167 * [taylor]: Taking taylor expansion of d1 in d4 4.167 * [backup-simplify]: Simplify d1 into d1 4.167 * [taylor]: Taking taylor expansion of d3 in d4 4.167 * [backup-simplify]: Simplify d3 into d3 4.167 * [taylor]: Taking taylor expansion of (* d1 (- (+ d4 d2) (+ d1 d3))) in d1 4.167 * [taylor]: Taking taylor expansion of d1 in d1 4.167 * [backup-simplify]: Simplify 0 into 0 4.167 * [backup-simplify]: Simplify 1 into 1 4.167 * [taylor]: Taking taylor expansion of (- (+ d4 d2) (+ d1 d3)) in d1 4.167 * [taylor]: Taking taylor expansion of (+ d4 d2) in d1 4.167 * [taylor]: Taking taylor expansion of d4 in d1 4.167 * [backup-simplify]: Simplify d4 into d4 4.167 * [taylor]: Taking taylor expansion of d2 in d1 4.167 * [backup-simplify]: Simplify d2 into d2 4.167 * [taylor]: Taking taylor expansion of (+ d1 d3) in d1 4.167 * [taylor]: Taking taylor expansion of d1 in d1 4.167 * [backup-simplify]: Simplify 0 into 0 4.167 * [backup-simplify]: Simplify 1 into 1 4.167 * [taylor]: Taking taylor expansion of d3 in d1 4.167 * [backup-simplify]: Simplify d3 into d3 4.167 * [taylor]: Taking taylor expansion of (* d1 (- (+ d4 d2) (+ d1 d3))) in d1 4.167 * [taylor]: Taking taylor expansion of d1 in d1 4.167 * [backup-simplify]: Simplify 0 into 0 4.167 * [backup-simplify]: Simplify 1 into 1 4.167 * [taylor]: Taking taylor expansion of (- (+ d4 d2) (+ d1 d3)) in d1 4.167 * [taylor]: Taking taylor expansion of (+ d4 d2) in d1 4.167 * [taylor]: Taking taylor expansion of d4 in d1 4.167 * [backup-simplify]: Simplify d4 into d4 4.167 * [taylor]: Taking taylor expansion of d2 in d1 4.167 * [backup-simplify]: Simplify d2 into d2 4.167 * [taylor]: Taking taylor expansion of (+ d1 d3) in d1 4.167 * [taylor]: Taking taylor expansion of d1 in d1 4.167 * [backup-simplify]: Simplify 0 into 0 4.167 * [backup-simplify]: Simplify 1 into 1 4.167 * [taylor]: Taking taylor expansion of d3 in d1 4.167 * [backup-simplify]: Simplify d3 into d3 4.167 * [backup-simplify]: Simplify (+ d4 d2) into (+ d2 d4) 4.167 * [backup-simplify]: Simplify (+ 0 d3) into d3 4.167 * [backup-simplify]: Simplify (- d3) into (- d3) 4.167 * [backup-simplify]: Simplify (+ (+ d2 d4) (- d3)) into (- (+ d2 d4) d3) 4.168 * [backup-simplify]: Simplify (* 0 (- (+ d2 d4) d3)) into 0 4.168 * [taylor]: Taking taylor expansion of 0 in d4 4.168 * [backup-simplify]: Simplify 0 into 0 4.168 * [taylor]: Taking taylor expansion of 0 in d2 4.168 * [backup-simplify]: Simplify 0 into 0 4.168 * [taylor]: Taking taylor expansion of 0 in d3 4.168 * [backup-simplify]: Simplify 0 into 0 4.168 * [backup-simplify]: Simplify 0 into 0 4.168 * [backup-simplify]: Simplify (+ 0 0) into 0 4.168 * [backup-simplify]: Simplify (+ 1 0) into 1 4.169 * [backup-simplify]: Simplify (- 1) into -1 4.169 * [backup-simplify]: Simplify (+ 0 -1) into -1 4.169 * [backup-simplify]: Simplify (+ (* 0 -1) (* 1 (- (+ d2 d4) d3))) into (- (+ d4 d2) d3) 4.169 * [taylor]: Taking taylor expansion of (- (+ d4 d2) d3) in d4 4.169 * [taylor]: Taking taylor expansion of (+ d4 d2) in d4 4.169 * [taylor]: Taking taylor expansion of d4 in d4 4.169 * [backup-simplify]: Simplify 0 into 0 4.169 * [backup-simplify]: Simplify 1 into 1 4.169 * [taylor]: Taking taylor expansion of d2 in d4 4.169 * [backup-simplify]: Simplify d2 into d2 4.169 * [taylor]: Taking taylor expansion of d3 in d4 4.169 * [backup-simplify]: Simplify d3 into d3 4.169 * [backup-simplify]: Simplify (+ 0 d2) into d2 4.169 * [backup-simplify]: Simplify (- d3) into (- d3) 4.170 * [backup-simplify]: Simplify (+ d2 (- d3)) into (- d2 d3) 4.170 * [taylor]: Taking taylor expansion of (- d2 d3) in d2 4.170 * [taylor]: Taking taylor expansion of d2 in d2 4.170 * [backup-simplify]: Simplify 0 into 0 4.170 * [backup-simplify]: Simplify 1 into 1 4.170 * [taylor]: Taking taylor expansion of d3 in d2 4.170 * [backup-simplify]: Simplify d3 into d3 4.170 * [backup-simplify]: Simplify (- d3) into (- d3) 4.170 * [backup-simplify]: Simplify (+ 0 (- d3)) into (- d3) 4.170 * [taylor]: Taking taylor expansion of (- d3) in d3 4.170 * [taylor]: Taking taylor expansion of d3 in d3 4.172 * [backup-simplify]: Simplify 0 into 0 4.172 * [backup-simplify]: Simplify 1 into 1 4.172 * [backup-simplify]: Simplify (- 0) into 0 4.172 * [backup-simplify]: Simplify 0 into 0 4.172 * [taylor]: Taking taylor expansion of 0 in d2 4.172 * [backup-simplify]: Simplify 0 into 0 4.172 * [taylor]: Taking taylor expansion of 0 in d3 4.172 * [backup-simplify]: Simplify 0 into 0 4.172 * [backup-simplify]: Simplify 0 into 0 4.172 * [taylor]: Taking taylor expansion of 0 in d3 4.172 * [backup-simplify]: Simplify 0 into 0 4.172 * [backup-simplify]: Simplify 0 into 0 4.172 * [backup-simplify]: Simplify 0 into 0 4.173 * [backup-simplify]: Simplify (+ 0 0) into 0 4.173 * [backup-simplify]: Simplify (+ 0 0) into 0 4.173 * [backup-simplify]: Simplify (- 0) into 0 4.173 * [backup-simplify]: Simplify (+ 0 0) into 0 4.174 * [backup-simplify]: Simplify (+ (* 0 0) (+ (* 1 -1) (* 0 (- (+ d2 d4) d3)))) into (- 1) 4.174 * [taylor]: Taking taylor expansion of (- 1) in d4 4.174 * [taylor]: Taking taylor expansion of 1 in d4 4.174 * [backup-simplify]: Simplify 1 into 1 4.174 * [backup-simplify]: Simplify (- 1) into -1 4.174 * [taylor]: Taking taylor expansion of -1 in d2 4.174 * [backup-simplify]: Simplify -1 into -1 4.174 * [taylor]: Taking taylor expansion of -1 in d3 4.174 * [backup-simplify]: Simplify -1 into -1 4.174 * [backup-simplify]: Simplify -1 into -1 4.175 * [backup-simplify]: Simplify (+ 1 0) into 1 4.175 * [backup-simplify]: Simplify (- 0) into 0 4.175 * [backup-simplify]: Simplify (+ 1 0) into 1 4.175 * [taylor]: Taking taylor expansion of 1 in d2 4.175 * [backup-simplify]: Simplify 1 into 1 4.175 * [taylor]: Taking taylor expansion of 1 in d3 4.175 * [backup-simplify]: Simplify 1 into 1 4.175 * [backup-simplify]: Simplify 1 into 1 4.175 * [taylor]: Taking taylor expansion of 0 in d2 4.176 * [backup-simplify]: Simplify 0 into 0 4.176 * [taylor]: Taking taylor expansion of 0 in d3 4.176 * [backup-simplify]: Simplify 0 into 0 4.176 * [backup-simplify]: Simplify 0 into 0 4.176 * [backup-simplify]: Simplify (- 0) into 0 4.176 * [backup-simplify]: Simplify (+ 1 0) into 1 4.176 * [taylor]: Taking taylor expansion of 1 in d3 4.176 * [backup-simplify]: Simplify 1 into 1 4.176 * [backup-simplify]: Simplify 1 into 1