Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:56:21 2012 Optimize a model with 20348 rows, 23562 columns and 83842 nonzeros Presolve removed 308 rows and 2 columns Presolve time: 0.40s Presolved: 20193 rows, 23560 columns, 106224 nonzeros Variable types: 0 continuous, 23560 integer (23560 binary) Found heuristic solution: objective 153.0000000 Root relaxation: objective 3.000000e+00, 11746 iterations, 1.08 seconds Total elapsed time = 5.06s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 3.0000000 3.00000 0.0% - 6s Explored 0 nodes (35588 simplex iterations) in 6.22 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%