Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:58:21 2012 Optimize a model with 18787 rows, 23870 columns and 79462 nonzeros Presolve removed 310 rows and 2 columns Presolve time: 0.37s Presolved: 18631 rows, 23868 columns, 102168 nonzeros Variable types: 0 continuous, 23868 integer (23868 binary) Found heuristic solution: objective 154.0000000 Root relaxation: objective 3.000000e+00, 14403 iterations, 1.30 seconds Total elapsed time = 7.34s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 272 154.00000 3.00000 98.1% - 8s H 0 0 3.0000000 3.00000 0.0% - 9s Explored 0 nodes (42127 simplex iterations) in 9.11 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%