Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:19:43 2012 Optimize a model with 28559 rows, 28392 columns and 113230 nonzeros Presolve removed 338 rows and 2 columns Presolve time: 0.68s Presolved: 28389 rows, 28390 columns, 140278 nonzeros Variable types: 0 continuous, 28390 integer (28390 binary) Found heuristic solution: objective 168.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: infeasible, 273 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 (273 simplex iterations) in 0.77 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%