Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:10 2012 Optimize a model with 45 rows, 49 columns and 159 nonzeros Presolve removed 0 rows and 5 columns Presolve time: 0.00s Presolved: 45 rows, 44 columns, 154 nonzeros Variable types: 0 continuous, 44 integer (43 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 0.000000e+00, 26 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 17 8.00000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s H 0 0 3.0000000 0.00000 100% - 0s 0 0 0.15385 0 20 3.00000 0.15385 94.9% - 0s 0 0 0.66667 0 22 3.00000 0.66667 77.8% - 0s 0 0 0.66667 0 21 3.00000 0.66667 77.8% - 0s 0 0 0.66667 0 28 3.00000 0.66667 77.8% - 0s 0 0 0.66667 0 27 3.00000 0.66667 77.8% - 0s 0 2 0.66667 0 22 3.00000 0.66667 77.8% - 0s * 17 6 6 2.0000000 0.83962 58.0% 6.1 0s Cutting planes: Gomory: 4 Mod-K: 2 Explored 28 nodes (326 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%