Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:47 2012 Optimize a model with 31 rows, 35 columns and 110 nonzeros Presolve removed 0 rows and 4 columns Presolve time: 0.00s Presolved: 31 rows, 31 columns, 106 nonzeros Variable types: 0 continuous, 31 integer (30 binary) Found heuristic solution: objective 5.0000000 Root relaxation: objective 0.000000e+00, 19 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 15 5.00000 0.00000 100% - 0s 0 0 0.21739 0 16 5.00000 0.21739 95.7% - 0s H 0 0 3.0000000 0.21739 92.8% - 0s 0 0 1.00000 0 8 3.00000 1.00000 66.7% - 0s 0 0 1.00000 0 16 3.00000 1.00000 66.7% - 0s * 0 0 0 1.0000000 1.00000 0.0% - 0s Cutting planes: Gomory: 1 Zero half: 1 Mod-K: 1 Explored 0 nodes (93 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+00, best bound 1.000000000000e+00, gap 0.0%