Gurobi 5.0.1 (linux64) logging started Fri Nov 16 02:43:41 2012 Optimize a model with 9213 rows, 1190 columns and 28660 nonzeros Presolve removed 2 rows and 2 columns Presolve time: 0.11s Presolved: 9211 rows, 1188 columns, 30331 nonzeros Variable types: 0 continuous, 1188 integer (1188 binary) Found heuristic solution: objective 34.0000000 Root relaxation: objective 3.461187e+00, 7446 iterations, 0.57 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 3.46119 0 1016 34.00000 3.46119 89.8% - 1s 0 0 5.00000 0 103 34.00000 5.00000 85.3% - 2s H 0 0 22.0000000 5.00000 77.3% - 2s H 0 0 11.0000000 5.00000 54.5% - 2s 0 0 5.28571 0 119 11.00000 5.28571 51.9% - 3s 0 0 7.00000 0 97 11.00000 7.00000 36.4% - 4s H 0 0 9.0000000 7.00000 22.2% - 4s 0 0 7.00000 0 126 9.00000 7.00000 22.2% - 4s 0 0 7.00000 0 120 9.00000 7.00000 22.2% - 5s H 0 0 8.0000000 7.00000 12.5% - 5s 0 0 7.00000 0 132 8.00000 7.00000 12.5% - 5s H 0 0 7.0000000 7.00000 0.0% - 5s Cutting planes: Clique: 15 Zero half: 1 Explored 0 nodes (31245 simplex iterations) in 5.79 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%