Gurobi 5.0.1 (linux64) logging started Fri Nov 16 15:28:02 2012 Optimize a model with 8679 rows, 4970 columns and 30658 nonzeros Presolve removed 1192 rows and 2 columns Presolve time: 0.30s Presolved: 7557 rows, 4968 columns, 32404 nonzeros Variable types: 0 continuous, 4968 integer (4968 binary) Found heuristic solution: objective 70.0000000 Root relaxation: objective 3.000000e+00, 5982 iterations, 0.70 seconds Total elapsed time = 5.05s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 90 70.00000 3.00000 95.7% - 5s H 0 0 3.0000000 3.00000 0.0% - 5s Explored 0 nodes (30514 simplex iterations) in 5.22 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%