Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:31:37 2014 Optimize a model with 2551 rows, 2550 columns and 7550 nonzeros Presolve time: 0.05s Presolved: 2551 rows, 2550 columns, 7550 nonzeros Variable types: 0 continuous, 2550 integer (2550 binary) Found heuristic solution: objective 11.7268292 Root relaxation: objective 7.359077e+00, 594 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 7.3590767 7.35908 0.00% - 0s Explored 0 nodes (594 simplex iterations) in 0.07 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.359076692486e+00, best bound 7.359076692486e+00, gap 0.0%