Gurobi 5.0.1 (linux64) logging started Sat Nov 17 11:18:06 2012 Optimize a model with 78367 rows, 61752 columns and 295614 nonzeros Presolve removed 1011 rows and 4712 columns (presolve time = 5s) ... Presolve removed 1013 rows and 4714 columns Presolve time: 6.61s Presolved: 77354 rows, 57038 columns, 287798 nonzeros Variable types: 0 continuous, 57038 integer (57038 binary) Found heuristic solution: objective 248.0000000 Found heuristic solution: objective 3.0000000 Root relaxation: infeasible, 418 iterations, 0.07 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% - 6s Explored 0 nodes (418 simplex iterations) in 6.88 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%