Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:07 2012 Optimize a model with 29 rows, 22 columns and 92 nonzeros Presolve time: 0.00s Presolved: 29 rows, 22 columns, 92 nonzeros Variable types: 0 continuous, 22 integer (22 binary) Found heuristic solution: objective 7.0000000 Found heuristic solution: objective 6.0000000 Root relaxation: objective 0.000000e+00, 11 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 8 6.00000 0.00000 100% - 0s 0 0 1.00000 0 10 6.00000 1.00000 83.3% - 0s 0 0 1.05660 0 12 6.00000 1.05660 82.4% - 0s 0 0 1.16667 0 10 6.00000 1.16667 80.6% - 0s 0 0 1.16667 0 10 6.00000 1.16667 80.6% - 0s 0 0 1.16667 0 10 6.00000 1.16667 80.6% - 0s 0 2 1.26667 0 10 6.00000 1.26667 78.9% - 0s Cutting planes: Gomory: 1 Mod-K: 5 Explored 7 nodes (89 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%