Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:05:12 2012 Optimize a model with 20959 rows, 25760 columns and 87838 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.44s Presolved: 21117 rows, 25758 columns, 113176 nonzeros Variable types: 0 continuous, 25758 integer (25758 binary) Found heuristic solution: objective 160.0000000 Root relaxation: objective 2.000000e+00, 14929 iterations, 0.81 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 2.00000 0 222 160.00000 2.00000 98.8% - 2s H 0 0 128.0000000 2.00000 98.4% - 2s H 0 0 3.0000000 2.00000 33.3% - 2s 0 0 infeasible 0 3.00000 2.00000 33.3% - 3s Cutting planes: Gomory: 1 Zero half: 1 Explored 0 nodes (46620 simplex iterations) in 3.09 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%