Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:09:55 2012 Optimize a model with 308 rows, 506 columns and 1342 nonzeros Presolve removed 8 rows and 176 columns Presolve time: 0.00s Presolved: 300 rows, 330 columns, 1166 nonzeros Variable types: 0 continuous, 330 integer (330 binary) Found heuristic solution: objective 9.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: objective 2.000000e+00, 280 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 24 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 56 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 24 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 40 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 40 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 40 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 43 3.00000 2.00000 33.3% - 0s 0 0 2.00000 0 43 3.00000 2.00000 33.3% - 0s 0 2 2.00000 0 43 3.00000 2.00000 33.3% - 0s Cutting planes: Gomory: 2 Explored 8 nodes (9134 simplex iterations) in 0.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%