Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:13:31 2012 Optimize a model with 2013 rows, 1482 columns and 7332 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.09s Presolved: 2049 rows, 1480 columns, 8670 nonzeros Variable types: 0 continuous, 1480 integer (1480 binary) Found heuristic solution: objective 38.0000000 Root relaxation: objective 2.000000e+00, 953 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 70 38.00000 2.00000 94.7% - 0s H 0 0 28.0000000 2.00000 92.9% - 0s H 0 0 3.0000000 2.00000 33.3% - 0s 0 0 infeasible 0 3.00000 2.00000 33.3% - 0s Cutting planes: Gomory: 1 Zero half: 20 Explored 0 nodes (3035 simplex iterations) in 0.15 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%