Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:02 2012 Optimize a model with 13 rows, 10 columns and 40 nonzeros Presolve time: 0.00s Presolved: 13 rows, 10 columns, 40 nonzeros Variable types: 0 continuous, 10 integer (10 binary) Found heuristic solution: objective 4.0000000 Root relaxation: objective 0.000000e+00, 5 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 4 4.00000 0.00000 100% - 0s 0 0 0.75000 0 6 4.00000 0.75000 81.2% - 0s 0 0 0.85714 0 9 4.00000 0.85714 78.6% - 0s 0 0 0.96000 0 9 4.00000 0.96000 76.0% - 0s 0 0 1.00000 0 9 4.00000 1.00000 75.0% - 0s 0 0 1.10000 0 10 4.00000 1.10000 72.5% - 0s 0 2 1.13333 0 10 4.00000 1.13333 71.7% - 0s Cutting planes: Gomory: 1 Mod-K: 6 Explored 5 nodes (40 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%