Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:52:04 2012 Optimize a model with 17 rows, 14 columns and 54 nonzeros Presolve time: 0.00s Presolved: 17 rows, 14 columns, 54 nonzeros Variable types: 0 continuous, 14 integer (14 binary) Found heuristic solution: objective 5.0000000 Root relaxation: objective 0.000000e+00, 8 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 5 5.00000 0.00000 100% - 0s 0 0 0.69565 0 9 5.00000 0.69565 86.1% - 0s H 0 0 4.0000000 0.69565 82.6% - 0s 0 0 1.66409 0 11 4.00000 1.66409 58.4% - 0s 0 0 1.68352 0 12 4.00000 1.68352 57.9% - 0s 0 2 1.73529 0 12 4.00000 1.73529 56.6% - 0s Cutting planes: Gomory: 2 Mod-K: 1 Explored 28 nodes (99 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%