Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:03 2012 Optimize a model with 45 rows, 46 columns and 156 nonzeros Presolve removed 0 rows and 4 columns Presolve time: 0.00s Presolved: 45 rows, 42 columns, 152 nonzeros Variable types: 0 continuous, 42 integer (41 binary) Found heuristic solution: objective 9.0000000 Root relaxation: objective 0.000000e+00, 28 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 19 9.00000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s H 0 0 4.0000000 0.00000 100% - 0s H 0 0 3.0000000 0.00000 100% - 0s 0 0 0.36842 0 20 3.00000 0.36842 87.7% - 0s 0 0 1.00000 0 20 3.00000 1.00000 66.7% - 0s H 0 0 2.0000000 1.00000 50.0% - 0s 0 0 1.00000 0 20 2.00000 1.00000 50.0% - 0s 0 0 1.00000 0 20 2.00000 1.00000 50.0% - 0s 0 2 1.00000 0 20 2.00000 1.00000 50.0% - 0s Cutting planes: Gomory: 7 MIR: 2 Zero half: 5 Explored 6 nodes (268 simplex iterations) in 0.01 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%