Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:34 2012 Optimize a model with 31 rows, 29 columns and 104 nonzeros Presolve time: 0.00s Presolved: 31 rows, 29 columns, 104 nonzeros Variable types: 0 continuous, 29 integer (29 binary) Found heuristic solution: objective 5.0000000 Root relaxation: objective 0.000000e+00, 16 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 11 5.00000 0.00000 100% - 0s 0 0 0.34783 0 13 5.00000 0.34783 93.0% - 0s 0 0 0.90276 0 14 5.00000 0.90276 81.9% - 0s 0 0 0.90909 0 16 5.00000 0.90909 81.8% - 0s 0 2 0.98901 0 16 5.00000 0.98901 80.2% - 0s * 5 5 4 4.0000000 2.00829 49.8% 7.6 0s * 7 1 2 3.0000000 3.00000 0.0% 6.3 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 8 nodes (105 simplex iterations) in 0.01 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%