Gurobi 5.0.1 (linux64) logging started Fri Nov 16 20:59:45 2012 Optimize a model with 19499 rows, 24492 columns and 82210 nonzeros Presolve removed 655 rows and 4526 columns Presolve time: 0.47s Presolved: 18844 rows, 19966 columns, 75884 nonzeros Variable types: 0 continuous, 19966 integer (19966 binary) Found heuristic solution: objective 156.0000000 Root relaxation: objective 3.000000e+00, 11593 iterations, 1.00 seconds Total elapsed time = 5.16s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 112 156.00000 3.00000 98.1% - 5s H 0 0 3.0000000 3.00000 0.0% - 5s Explored 0 nodes (36182 simplex iterations) in 5.91 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%