Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:08:50 2012 Optimize a model with 1663 rows, 1056 columns and 5886 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.10s Presolved: 1693 rows, 1054 columns, 6806 nonzeros Variable types: 0 continuous, 1054 integer (1054 binary) Found heuristic solution: objective 32.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 74 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 62 3.00000 2.00000 33.3% - 0s 0 0 infeasible 0 3.00000 2.00000 33.3% - 0s Explored 0 nodes (156 simplex iterations) in 0.11 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%