Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:10:21 2012 Optimize a model with 1024 rows, 1056 columns and 4000 nonzeros Presolve removed 2 rows and 64 columns Presolve time: 0.02s Presolved: 1022 rows, 992 columns, 3936 nonzeros Variable types: 0 continuous, 992 integer (992 binary) Found heuristic solution: objective 15.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 905 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 52 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 84 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 84 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 89 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 84 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 89 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 89 3.00000 2.00000 33.3% - 0s 0 2 2.00000 0 89 3.00000 2.00000 33.3% - 0s Cutting planes: Gomory: 3 Zero half: 4 Explored 13 nodes (32562 simplex iterations) in 1.84 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%