Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:09:50 2012 Optimize a model with 159 rows, 272 columns and 670 nonzeros Presolve removed 38 rows and 66 columns Presolve time: 0.00s Presolved: 121 rows, 206 columns, 510 nonzeros Variable types: 0 continuous, 206 integer (206 binary) Found heuristic solution: objective 16.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: infeasible, 19 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 (19 simplex iterations) in 0.00 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%