Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:34:20 2012 Optimize a model with 24881 rows, 30450 columns and 104224 nonzeros Presolve removed 385 rows and 6092 columns Presolve time: 0.63s Presolved: 24496 rows, 24358 columns, 96982 nonzeros Variable types: 0 continuous, 24358 integer (24358 binary) Found heuristic solution: objective 174.0000000 Root relaxation: objective 3.000000e+00, 13447 iterations, 1.47 seconds Total elapsed time = 7.28s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 28 174.00000 3.00000 98.3% - 8s H 0 0 3.0000000 3.00000 0.0% - 8s Explored 0 nodes (42109 simplex iterations) in 8.15 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%