Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:50 2012 Optimize a model with 43 rows, 42 columns and 147 nonzeros Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 43 rows, 40 columns, 145 nonzeros Variable types: 0 continuous, 40 integer (39 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 0.000000e+00, 25 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 18 7.00000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s 0 0 0.29708 0 20 6.00000 0.29708 95.0% - 0s H 0 0 5.0000000 0.29708 94.1% - 0s 0 0 0.92205 0 22 5.00000 0.92205 81.6% - 0s 0 0 0.99425 0 23 5.00000 0.99425 80.1% - 0s 0 0 1.01091 0 23 5.00000 1.01091 79.8% - 0s 0 0 1.01091 0 23 5.00000 1.01091 79.8% - 0s H 0 0 2.0000000 1.01091 49.5% - 0s Cutting planes: Gomory: 4 Zero half: 3 Explored 0 nodes (96 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%