Gurobi 5.0.1 (linux64) logging started Fri Nov 16 21:01:29 2012 Optimize a model with 21037 rows, 24806 columns and 87133 nonzeros Presolve removed 316 rows and 2 columns Presolve time: 0.43s Presolved: 20878 rows, 24804 columns, 110733 nonzeros Variable types: 0 continuous, 24804 integer (24804 binary) Found heuristic solution: objective 157.0000000 Root relaxation: objective 3.000000e+00, 12122 iterations, 1.59 seconds Total elapsed time = 6.12s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.00000 0 179 157.00000 3.00000 98.1% - 7s H 0 0 3.0000000 3.00000 0.0% - 7s Explored 0 nodes (47095 simplex iterations) in 7.91 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%