Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:11:02 2012 Optimize a model with 1368 rows, 1406 columns and 5326 nonzeros Presolve removed 81 rows and 187 columns Presolve time: 0.08s Presolved: 1287 rows, 1219 columns, 4886 nonzeros Variable types: 0 continuous, 1219 integer (1219 binary) Found heuristic solution: objective 37.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: infeasible, 55 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 (55 simplex iterations) in 0.08 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%