Gurobi 5.0.1 (linux64) logging started Fri Nov 16 17:38:27 2012 Optimize a model with 1473 rows, 4556 columns and 8641 nonzeros Presolve removed 174 rows and 2548 columns Presolve time: 0.10s Presolved: 1299 rows, 2008 columns, 5720 nonzeros Variable types: 0 continuous, 2008 integer (2008 binary) Found heuristic solution: objective 67.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: infeasible, 46 iterations, 0.00 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 (46 simplex iterations) in 0.10 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%