Warning: Output names have been modified to conform to LP format. Default row names c1, c2 ... being created. Tried aggregator 6 times. MIP Presolve eliminated 269379 rows and 47235 columns. MIP Presolve modified 14717 coefficients. Aggregator did 2232 substitutions. Reduced MIP has 6782 rows, 2461 columns, and 21253 nonzeros. Presolve time = 1.80 sec. Clique table members: 2911. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 0.02 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 -548.0000 20 -548.0000 232 * 0+ 0 -548.0000 -548.0000 232 0.00% 0 0 cutoff -548.0000 -548.0000 232 0.00% >>>>>>> Objval = -548.000000 (int)-548 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 880.0000. Tried aggregator 7 times. MIP Presolve eliminated 268126 rows and 46777 columns. MIP Presolve modified 15487 coefficients. Aggregator did 2073 substitutions. Reduced MIP has 8196 rows, 3078 columns, and 27609 nonzeros. Presolve time = 2.08 sec. Clique table members: 3360. MIP emphasis: balance optimality and feasibility. MIP search method: dynamic search. Parallel mode: none, using 1 thread. Root relaxation solution time = 0.03 sec. Nodes Cuts/ Node Left Objective IInf Best Integer Best Node ItCnt Gap 0 0 -365.5694 96 880.0000 -365.5694 605 141.54% * 0 0 integral 0 -317.0000 Cuts: 22 680 0.00% 0 0 cutoff -317.0000 -317.0000 680 0.00% Implied bound cuts applied: 2 Zero-half cuts applied: 1 Gomory fractional cuts applied: 1