Gurobi 5.0.1 (linux64) logging started Fri Nov 16 03:02:36 2012 Optimize a model with 10114 rows, 1260 columns and 31428 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.12s Presolved: 10147 rows, 1258 columns, 34462 nonzeros Variable types: 0 continuous, 1258 integer (1258 binary) Found heuristic solution: objective 35.0000000 Root relaxation: objective 3.460177e+00, 8640 iterations, 0.69 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.46018 0 1115 35.00000 3.46018 90.1% - 1s 0 0 5.00000 0 104 35.00000 5.00000 85.7% - 2s H 0 0 24.0000000 5.00000 79.2% - 2s H 0 0 9.0000000 5.00000 44.4% - 2s 0 0 5.57143 0 123 9.00000 5.57143 38.1% - 4s 0 0 7.00000 0 22 9.00000 7.00000 22.2% - 5s H 0 0 8.0000000 7.00000 12.5% - 5s H 0 0 7.0000000 7.00000 0.0% - 5s Explored 0 nodes (29782 simplex iterations) in 5.77 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%