Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:49:17 2012 Optimize a model with 2684 rows, 103 columns and 5368 nonzeros Presolve removed 1945 rows and 0 columns Presolve time: 0.09s Presolved: 739 rows, 103 columns, 5150 nonzeros Variable types: 0 continuous, 103 integer (103 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.447235e+01, 394 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 14.47235 0 94 7.00000 14.47235 107% - 0s 0 0 13.99325 0 100 7.00000 13.99325 100% - 0s H 0 0 9.0000000 13.99325 55.5% - 0s 0 0 13.88235 0 102 9.00000 13.88235 54.2% - 0s 0 0 13.78725 0 101 9.00000 13.78725 53.2% - 0s 0 0 13.76556 0 101 9.00000 13.76556 53.0% - 0s 0 0 13.74246 0 103 9.00000 13.74246 52.7% - 0s 0 0 13.73841 0 103 9.00000 13.73841 52.6% - 0s 0 0 13.73290 0 103 9.00000 13.73290 52.6% - 1s 0 0 13.73269 0 103 9.00000 13.73269 52.6% - 1s 0 0 13.73230 0 103 9.00000 13.73230 52.6% - 1s 0 0 13.73230 0 103 9.00000 13.73230 52.6% - 1s 0 2 13.73100 0 103 9.00000 13.73100 52.6% - 1s Cutting planes: Clique: 97 Explored 169 nodes (11650 simplex iterations) in 2.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%