Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:16 2012 Optimize a model with 53 rows, 55 columns and 185 nonzeros Presolve removed 0 rows and 6 columns Presolve time: 0.00s Presolved: 53 rows, 49 columns, 179 nonzeros Variable types: 0 continuous, 49 integer (48 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 0.000000e+00, 31 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 22 8.00000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s 0 0 0.25112 0 24 5.00000 0.25112 95.0% - 0s 0 0 0.79190 0 28 5.00000 0.79190 84.2% - 0s H 0 0 4.0000000 0.79190 80.2% - 0s H 0 0 3.0000000 0.79190 73.6% - 0s 0 0 0.79190 0 28 3.00000 0.79190 73.6% - 0s H 0 0 2.0000000 0.79190 60.4% - 0s 0 0 cutoff 0 2.00000 2.00000 0.0% - 0s Cutting planes: Gomory: 4 Explored 1 nodes (142 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%