Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:22:10 2012 Optimize a model with 5979 rows, 4290 columns and 21903 nonzeros Presolve removed 525 rows and 197 columns Presolve time: 0.17s Presolved: 5454 rows, 4093 columns, 20240 nonzeros Variable types: 0 continuous, 4093 integer (4093 binary) Found heuristic solution: objective 65.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: infeasible, 106 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 (106 simplex iterations) in 0.18 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%