Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:20:27 2012 Optimize a model with 7055 rows, 4032 columns and 24883 nonzeros Presolve removed 443 rows and 2 columns Presolve time: 0.23s Presolved: 6612 rows, 4030 columns, 23602 nonzeros Variable types: 0 continuous, 4030 integer (4030 binary) Found heuristic solution: objective 63.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: infeasible, 115 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 (115 simplex iterations) in 0.25 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%