Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:20:05 2012 Optimize a model with 4762 rows, 138 columns and 9524 nonzeros Presolve removed 3411 rows and 0 columns Presolve time: 0.17s Presolved: 1351 rows, 138 columns, 9569 nonzeros Variable types: 0 continuous, 138 integer (138 binary) Found heuristic solution: objective 7.0000000 Root relaxation: objective 1.817813e+01, 667 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 18.17813 0 134 7.00000 18.17813 160% - 0s H 0 0 9.0000000 18.17813 102% - 0s 0 0 17.53070 0 138 9.00000 17.53070 94.8% - 0s 0 0 17.43163 0 137 9.00000 17.43163 93.7% - 0s 0 0 17.38619 0 136 9.00000 17.38619 93.2% - 0s 0 0 17.34881 0 138 9.00000 17.34881 92.8% - 1s 0 0 17.32063 0 138 9.00000 17.32063 92.5% - 1s 0 0 17.30551 0 138 9.00000 17.30551 92.3% - 1s 0 0 17.30341 0 138 9.00000 17.30341 92.3% - 1s 0 0 17.29947 0 138 9.00000 17.29947 92.2% - 1s 0 0 17.29082 0 137 9.00000 17.29082 92.1% - 2s 0 0 17.28499 0 137 9.00000 17.28499 92.1% - 2s 0 0 17.28326 0 137 9.00000 17.28326 92.0% - 2s 0 0 17.28048 0 137 9.00000 17.28048 92.0% - 2s 0 0 17.27922 0 138 9.00000 17.27922 92.0% - 2s 0 0 17.27919 0 138 9.00000 17.27919 92.0% - 3s 0 0 17.27917 0 138 9.00000 17.27917 92.0% - 3s 0 2 17.27853 0 138 9.00000 17.27853 92.0% - 3s * 207 125 11 10.0000000 16.55672 65.6% 72.0 4s 213 127 13.01722 10 68 10.00000 16.49853 65.0% 73.2 5s Cutting planes: Clique: 158 Explored 784 nodes (55414 simplex iterations) in 9.11 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%