Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:44:22 2012 Optimize a model with 14765 rows, 19182 columns and 62788 nonzeros Presolve removed 300 rows and 3038 columns Presolve time: 0.29s Presolved: 14465 rows, 16144 columns, 58852 nonzeros Variable types: 0 continuous, 16144 integer (16144 binary) Found heuristic solution: objective 138.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: infeasible, 192 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 infeasible 0 3.00000 2.00000 33.3% - 0s Explored 0 nodes (192 simplex iterations) in 0.33 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%