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 23947 coefficients. Aggregator did 1261 substitutions. Reduced MIP has 61742 rows, 11309 columns, and 244384 nonzeros. Presolve time = 4.62 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 = 0.60 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 -2928.2222 174 -2928.2222 1545 * 0+ 0 -2920.0000 -2928.2222 1545 0.28% 0 0 -2927.0000 36 -2920.0000 Cuts: 383 1620 0.24% * 0+ 0 -2926.0000 -2927.0000 1620 0.03% * 0+ 0 -2927.0000 -2927.0000 1620 0.00% 0 0 cutoff -2927.0000 -2927.0000 1620 0.00% GUB cover cuts applied: 1 Clique cuts applied: 142 Implied bound cuts applied: 25 Zero-half cuts applied: 26 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 1596.0000. Tried aggregator 5 times. MIP Presolve eliminated 191510 rows and 35371 columns. MIP Presolve modified 23949 coefficients. Aggregator did 1258 substitutions. Reduced MIP has 61757 rows, 11321 columns, and 247338 nonzeros. Presolve time = 4.62 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 = 13.42 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 399.6572 689 1596.0000 399.6572 13361 74.96% 0 0 526.5000 26 1596.0000 Cuts: 459 13649 67.01% * 0 0 integral 0 530.0000 Cuts: 13 13655 0.00% 0 0 cutoff 530.0000 530.0000 13655 0.00% Elapsed time = 20.39 sec. (tree size = 0.00 MB, solutions = 2) GUB cover cuts applied: 1 Clique cuts applied: 215 Cover cuts applied: 3 Implied bound cuts applied: 49 Zero-half cuts applied: 23 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 2315.0000. Presolve has eliminated 181885 rows and 34904 columns... Aggregator has done 1117 substitutions... Tried aggregator 5 times. 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 255519 nonzeros. Presolve time = 5.91 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 = 13.05 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 1794.5278 131 2315.0000 1794.5278 20149 22.48% 0 0 1907.0000 24 2315.0000 Cuts: 296 20978 17.62% 0 0 1926.5000 35 2315.0000 Cuts: 13 21014 16.78% * 0 0 integral 0 1942.0000 Cuts: 57 21052 0.00% 0 0 cutoff 1942.0000 1942.0000 21052 0.00% Elapsed time = 21.56 sec. (tree size = 0.00 MB, solutions = 2) GUB cover cuts applied: 1 Clique cuts applied: 167 Implied bound cuts applied: 31 Zero-half cuts applied: 15 Gomory fractional cuts applied: 8