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 191344 rows and 35365 columns. MIP Presolve modified 23975 coefficients. Aggregator did 1263 substitutions. Reduced MIP has 61916 rows, 11322 columns, and 245087 nonzeros. Presolve time = 4.65 sec. Clique table members: 10620. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 0.64 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 -2928.2222 186 -2928.2222 1550 * 0+ 0 -2920.0000 -2928.2222 1550 0.28% 0 0 -2927.0000 41 -2920.0000 Cuts: 425 1684 0.24% * 0+ 0 -2927.0000 -2927.0000 1684 0.00% 0 0 cutoff -2927.0000 -2927.0000 1684 0.00% GUB cover cuts applied: 1 Clique cuts applied: 165 Cover cuts applied: 1 Implied bound cuts applied: 30 Zero-half cuts applied: 22 Gomory fractional cuts applied: 16 >>>>>>> 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 1614.0000. Tried aggregator 5 times. MIP Presolve eliminated 191332 rows and 35356 columns. MIP Presolve modified 23973 coefficients. Aggregator did 1260 substitutions. Reduced MIP has 61931 rows, 11334 columns, and 248042 nonzeros. Presolve time = 4.64 sec. Clique table members: 10595. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 10.60 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 402.6572 678 1614.0000 402.6572 13155 75.05% 0 0 529.5000 26 1614.0000 Cuts: 442 13408 67.19% * 0 0 integral 0 533.0000 Cuts: 12 13414 0.00% 0 0 cutoff 533.0000 533.0000 13414 0.00% Elapsed time = 17.14 sec. (tree size = 0.00 MB, solutions = 2) GUB cover cuts applied: 1 Clique cuts applied: 217 Cover cuts applied: 3 Implied bound cuts applied: 55 Zero-half cuts applied: 12 Gomory fractional cuts applied: 4 >>>>>>> Objval = 533.000000 (int)533 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 2302.0000. Presolve has eliminated 181649 rows and 34884 columns... Aggregator has done 1116 substitutions... Tried aggregator 5 times. MIP Presolve eliminated 190770 rows and 35136 columns. MIP Presolve modified 24000 coefficients. Aggregator did 1208 substitutions. Reduced MIP has 62545 rows, 11606 columns, and 256233 nonzeros. Presolve time = 6.16 sec. Clique table members: 10428. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 16.50 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 1807.0278 138 2302.0000 1807.0278 20951 21.50% 0 0 1921.0000 24 2302.0000 Cuts: 303 21685 16.55% * 0+ 0 1956.0000 1921.0000 21731 1.79% 0 0 cutoff 1956.0000 1921.0000 21731 1.79% Elapsed time = 25.38 sec. (tree size = 0.00 MB, solutions = 2) GUB cover cuts applied: 1 Clique cuts applied: 132 Implied bound cuts applied: 7 Zero-half cuts applied: 10 Gomory fractional cuts applied: 8