Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:06 2012 Optimize a model with 93 rows, 94 columns and 324 nonzeros Presolve removed 0 rows and 7 columns Presolve time: 0.00s Presolved: 93 rows, 87 columns, 317 nonzeros Variable types: 0 continuous, 87 integer (86 binary) Found heuristic solution: objective 17.0000000 Found heuristic solution: objective 16.0000000 Root relaxation: objective 0.000000e+00, 58 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 40 16.00000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 0 0.36571 0 42 5.00000 0.36571 92.7% - 0s H 0 0 4.0000000 0.36571 90.9% - 0s 0 0 0.88889 0 44 4.00000 0.88889 77.8% - 0s 0 0 0.88889 0 44 4.00000 0.88889 77.8% - 0s 0 2 0.88889 0 44 4.00000 0.88889 77.8% - 0s * 4 4 3 2.0000000 1.27451 36.3% 19.2 0s Cutting planes: Gomory: 1 Mod-K: 1 Explored 5 nodes (312 simplex iterations) in 0.03 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%