Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:04 2012 Optimize a model with 17 rows, 14 columns and 54 nonzeros Presolve time: 0.00s Presolved: 17 rows, 14 columns, 54 nonzeros Variable types: 0 continuous, 14 integer (14 binary) Found heuristic solution: objective 4.0000000 Root relaxation: objective 0.000000e+00, 9 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 6 4.00000 0.00000 100% - 0s 0 0 0.62500 0 9 4.00000 0.62500 84.4% - 0s H 0 0 3.0000000 0.62500 79.2% - 0s 0 0 0.94444 0 11 3.00000 0.94444 68.5% - 0s 0 0 1.00000 0 8 3.00000 1.00000 66.7% - 0s 0 0 1.00000 0 8 3.00000 1.00000 66.7% - 0s 0 0 1.00000 0 8 3.00000 1.00000 66.7% - 0s 0 2 1.06250 0 8 3.00000 1.06250 64.6% - 0s Cutting planes: Gomory: 1 Zero half: 4 Mod-K: 1 Explored 5 nodes (59 simplex iterations) in 0.00 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%