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 244382 nonzeros. Presolve time = 4.71 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 = 0.58 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 -2928.2222 199 -2928.2222 1594 * 0+ 0 -2919.0000 -2928.2222 1594 0.32% 0 0 -2927.0000 74 -2919.0000 Cuts: 372 1696 0.27% * 0 0 integral 0 -2927.0000 Cuts: 42 1709 0.00% 0 0 cutoff -2927.0000 -2927.0000 1709 0.00% GUB cover cuts applied: 2 Clique cuts applied: 79 Implied bound cuts applied: 28 Zero-half cuts applied: 34 Gomory fractional cuts applied: 14 >>>>>>> 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 1623.0000. Tried aggregator 5 times. MIP Presolve eliminated 191510 rows and 35371 columns. MIP Presolve modified 23948 coefficients. Aggregator did 1258 substitutions. Reduced MIP has 61757 rows, 11321 columns, and 247336 nonzeros. Presolve time = 4.64 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 = 10.38 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 399.6572 691 1623.0000 399.6572 13192 75.38% 0 0 526.5000 26 1623.0000 Cuts: 462 13413 67.56% * 0 0 integral 0 530.0000 Cuts: 12 13423 0.00% 0 0 cutoff 530.0000 530.0000 13423 0.00% Elapsed time = 17.14 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: 37 Zero-half cuts applied: 25 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 2255.0000. Presolve has eliminated 182517 rows and 34996 columns... Aggregator has done 1195 substitutions... Tried aggregator 5 times. MIP Presolve eliminated 190950 rows and 35152 columns. MIP Presolve modified 23973 coefficients. Aggregator did 1206 substitutions. Reduced MIP has 62369 rows, 11592 columns, and 255517 nonzeros. Presolve time = 5.54 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 = 12.44 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 1794.5278 131 2255.0000 1794.5278 20256 20.42% 0 0 1907.0000 24 2255.0000 Cuts: 292 21090 15.43% 0 0 1932.6667 63 2255.0000 Cuts: 53 21143 14.29% * 0+ 0 1942.0000 1932.6667 21145 0.48% 0 0 cutoff 1942.0000 1932.6667 21145 0.48% Elapsed time = 21.41 sec. (tree size = 0.00 MB, solutions = 2) GUB cover cuts applied: 1 Clique cuts applied: 162 Implied bound cuts applied: 20 Zero-half cuts applied: 13 Gomory fractional cuts applied: 7