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 191717 rows and 35396 columns. MIP Presolve modified 23941 coefficients. Aggregator did 1272 substitutions. Reduced MIP has 61536 rows, 11282 columns, and 243370 nonzeros. Presolve time = 4.56 sec. Clique table members: 10581. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 0.62 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 -2927.2222 202 -2927.2222 1547 * 0+ 0 -2918.0000 -2927.2222 1547 0.32% 0 0 -2926.0000 116 -2918.0000 Cuts: 351 1647 0.27% * 0+ 0 -2923.0000 -2926.0000 1647 0.10% 0 0 -2926.0000 36 -2923.0000 Cuts: 45 1661 0.10% * 0+ 0 -2925.0000 -2926.0000 1661 0.03% * 0+ 0 -2926.0000 -2926.0000 1661 0.00% 0 0 cutoff -2926.0000 -2926.0000 1661 0.00% GUB cover cuts applied: 1 Clique cuts applied: 73 Implied bound cuts applied: 18 Zero-half cuts applied: 32 Gomory fractional cuts applied: 15 >>>>>>> Objval = -2926.000000 (int)-2926 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 1589.0000. Tried aggregator 5 times. MIP Presolve eliminated 191705 rows and 35387 columns. MIP Presolve modified 23941 coefficients. Aggregator did 1269 substitutions. Reduced MIP has 61551 rows, 11294 columns, and 246314 nonzeros. Presolve time = 4.63 sec. Clique table members: 10556. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 10.64 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 394.6572 693 1589.0000 394.6572 13209 75.16% 0 0 521.5000 26 1589.0000 Cuts: 458 13494 67.18% * 0 0 integral 0 525.0000 Cuts: 13 13505 0.00% 0 0 cutoff 525.0000 525.0000 13505 0.00% Elapsed time = 17.57 sec. (tree size = 0.00 MB, solutions = 2) GUB cover cuts applied: 1 Clique cuts applied: 214 Cover cuts applied: 3 Implied bound cuts applied: 51 Zero-half cuts applied: 30 Gomory fractional cuts applied: 4 >>>>>>> Objval = 525.000000 (int)525 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 2263.0000. Presolve has eliminated 182707 rows and 35008 columns... Aggregator has done 1216 substitutions... Tried aggregator 5 times. MIP Presolve eliminated 191145 rows and 35168 columns. MIP Presolve modified 23965 coefficients. Aggregator did 1217 substitutions. Reduced MIP has 62163 rows, 11565 columns, and 254487 nonzeros. Presolve time = 5.54 sec. Clique table members: 10387. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 12.92 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 1800.5278 139 2263.0000 1800.5278 20930 20.44% 0 0 1913.0000 24 2263.0000 Cuts: 307 21817 15.47% 0 0 1932.5000 35 2263.0000 Cuts: 14 21846 14.60% * 0+ 0 1948.0000 1932.5000 21865 0.80% 0 0 cutoff 1948.0000 1932.5000 21865 0.80% Elapsed time = 21.17 sec. (tree size = 0.00 MB, solutions = 2) GUB cover cuts applied: 1 Clique cuts applied: 140 Implied bound cuts applied: 10 Zero-half cuts applied: 14 Gomory fractional cuts applied: 10