Warning: Output names have been modified to conform to LP format. Default row names c1, c2 ... being created. Tried aggregator 5 times. MIP Presolve eliminated 191522 rows and 35380 columns. MIP Presolve modified 23950 coefficients. Aggregator did 1261 substitutions. Reduced MIP has 61742 rows, 11309 columns, and 244382 nonzeros. Presolve time = 4.47 sec. Clique table members: 10608. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 0.63 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 -2928.2222 131 -2928.2222 1723 * 0+ 0 -2920.0000 -2928.2222 1723 0.28% 0 0 -2927.0000 84 -2920.0000 Cuts: 391 1805 0.24% * 0+ 0 -2924.0000 -2927.0000 1805 0.10% * 0 0 integral 0 -2927.0000 Cuts: 10 1819 0.00% 0 0 cutoff -2927.0000 -2927.0000 1819 0.00% GUB cover cuts applied: 2 Clique cuts applied: 135 Cover cuts applied: 1 Implied bound cuts applied: 21 Zero-half cuts applied: 22 Gomory fractional cuts applied: 15 >>>>>>> Objval = -2927.000000 (int)-2927 Warning: Output names have been modified to conform to LP format. Default row names c1, c2 ... being created. MIP start values provide initial solution with objective 1608.0000. Tried aggregator 5 times. MIP Presolve eliminated 191510 rows and 35371 columns. MIP Presolve modified 23946 coefficients. Aggregator did 1258 substitutions. Reduced MIP has 61757 rows, 11321 columns, and 247336 nonzeros. Presolve time = 4.51 sec. Clique table members: 10583. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 9.72 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 399.6572 693 1608.0000 399.6572 13139 75.15% 0 0 526.5000 34 1608.0000 Cuts: 473 13389 67.26% * 0+ 0 530.0000 526.5000 13389 0.66% 0 0 cutoff 530.0000 Cuts: 14 13394 0.00% 0 0 cutoff 530.0000 530.0000 13394 0.00% Elapsed time = 16.22 sec. (tree size = 0.00 MB, solutions = 2) GUB cover cuts applied: 1 Clique cuts applied: 220 Cover cuts applied: 3 Implied bound cuts applied: 34 Zero-half cuts applied: 59 Gomory fractional cuts applied: 4 >>>>>>> Objval = 530.000000 (int)530 Warning: Output names have been modified to conform to LP format. Default row names c1, c2 ... being created. MIP start values provide initial solution with objective 2269.0000. Tried aggregator 5 times. Presolve has eliminated 190950 rows and 35152 columns... Aggregator has done 1206 substitutions... MIP Presolve eliminated 190950 rows and 35152 columns. MIP Presolve modified 23974 coefficients. Aggregator did 1206 substitutions. Reduced MIP has 62369 rows, 11592 columns, and 255517 nonzeros. Presolve time = 5.16 sec. Clique table members: 10414. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 13.62 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 1794.5278 135 2269.0000 1794.5278 21053 20.91% 0 0 1907.0000 24 2269.0000 Cuts: 301 21843 15.95% 0 0 1932.6667 63 2269.0000 Cuts: 55 21883 14.82% * 0+ 0 1942.0000 1932.6667 21885 0.48% 0 0 cutoff 1942.0000 1932.6667 21885 0.48% Elapsed time = 21.54 sec. (tree size = 0.00 MB, solutions = 2) GUB cover cuts applied: 1 Clique cuts applied: 163 Implied bound cuts applied: 21 Zero-half cuts applied: 13 Gomory fractional cuts applied: 9