Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:15:30 2012 Optimize a model with 3816 rows, 2862 columns and 14098 nonzeros Presolve removed 479 rows and 106 columns Presolve time: 0.09s Presolved: 3337 rows, 2756 columns, 12826 nonzeros Variable types: 0 continuous, 2756 integer (2756 binary) Found heuristic solution: objective 23.0000000 Root relaxation: objective 3.000000e+00, 3431 iterations, 0.12 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 0s Explored 0 nodes (4587 simplex iterations) in 0.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%