Gurobi 5.6.3 (linux64) logging started Tue Oct 7 20:33:46 2014 Optimize a model with 3193 rows, 3192 columns and 9464 nonzeros Presolve time: 0.06s Presolved: 3193 rows, 3192 columns, 9464 nonzeros Variable types: 0 continuous, 3192 integer (3192 binary) Found heuristic solution: objective 12.0803216 Root relaxation: objective 7.520709e+00, 766 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 7.5207086 7.52071 0.00% - 0s Explored 0 nodes (766 simplex iterations) in 0.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.520708591485e+00, best bound 7.520708591485e+00, gap 0.0%