Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:02:38 2012 Optimize a model with 23372 rows, 25440 columns and 94762 nonzeros Presolve removed 666 rows and 4454 columns Presolve time: 0.52s Presolved: 22706 rows, 20986 columns, 88434 nonzeros Variable types: 0 continuous, 20986 integer (20986 binary) Found heuristic solution: objective 159.0000000 Root relaxation: objective 3.000000e+00, 16139 iterations, 1.92 seconds Total elapsed time = 7.74s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 24 159.00000 3.00000 98.1% - 9s H 0 0 3.0000000 3.00000 0.0% - 9s Explored 0 nodes (50288 simplex iterations) in 9.32 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%