Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:38:10 2012 Optimize a model with 73 rows, 62 columns and 242 nonzeros Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 73 rows, 61 columns, 241 nonzeros Variable types: 0 continuous, 61 integer (60 binary) Found heuristic solution: objective 19.0000000 Found heuristic solution: objective 18.0000000 Root relaxation: objective 0.000000e+00, 36 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 24 18.00000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 0 0.39607 0 26 10.00000 0.39607 96.0% - 0s H 0 0 8.0000000 0.39607 95.0% - 0s 0 0 0.91385 0 30 8.00000 0.91385 88.6% - 0s H 0 0 6.0000000 0.91385 84.8% - 0s 0 0 0.91385 0 30 6.00000 0.91385 84.8% - 0s 0 2 0.91843 0 30 6.00000 0.91843 84.7% - 0s * 8 5 6 5.0000000 2.24437 55.1% 15.6 0s Cutting planes: Gomory: 3 Zero half: 1 Explored 23 nodes (492 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%