Gurobi 5.0.1 (linux64) logging started Mon Nov 19 06:50:52 2012 Optimize a model with 2824 rows, 107 columns and 5648 nonzeros Presolve removed 2006 rows and 0 columns Presolve time: 0.08s Presolved: 818 rows, 107 columns, 5445 nonzeros Variable types: 0 continuous, 107 integer (107 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 1.498185e+01, 423 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 14.98185 0 103 8.00000 14.98185 87.3% - 0s 0 0 14.64779 0 107 8.00000 14.64779 83.1% - 0s 0 0 14.54748 0 107 8.00000 14.54748 81.8% - 0s 0 0 14.53637 0 107 8.00000 14.53637 81.7% - 0s H 0 0 9.0000000 14.53637 61.5% - 0s 0 0 14.53156 0 107 9.00000 14.53156 61.5% - 0s 0 0 14.52400 0 107 9.00000 14.52400 61.4% - 0s 0 0 14.52283 0 107 9.00000 14.52283 61.4% - 0s 0 0 14.52271 0 107 9.00000 14.52271 61.4% - 1s H 0 0 10.0000000 14.52271 45.2% - 1s 0 0 14.52258 0 107 10.00000 14.52258 45.2% - 1s 0 2 14.52249 0 107 10.00000 14.52249 45.2% - 1s Cutting planes: Clique: 66 Zero half: 1 Explored 123 nodes (10247 simplex iterations) in 2.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%