Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:16:34 2012 Optimize a model with 24047 rows, 28056 columns and 99363 nonzeros Presolve removed 336 rows and 2 columns Presolve time: 0.52s Presolved: 23878 rows, 28054 columns, 126133 nonzeros Variable types: 0 continuous, 28054 integer (28054 binary) Found heuristic solution: objective 167.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: infeasible, 265 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 (265 simplex iterations) in 0.60 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%