Gurobi 5.0.1 (linux64) logging started Mon Nov 19 07:25:37 2012 Optimize a model with 4885 rows, 140 columns and 9770 nonzeros Presolve removed 3500 rows and 0 columns Presolve time: 0.18s Presolved: 1385 rows, 140 columns, 9784 nonzeros Variable types: 0 continuous, 140 integer (140 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 1.808076e+01, 700 iterations, 0.05 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 18.08076 0 135 8.00000 18.08076 126% - 0s 0 0 17.56043 0 140 8.00000 17.56043 120% - 0s H 0 0 9.0000000 17.56043 95.1% - 0s 0 0 17.44615 0 138 9.00000 17.44615 93.8% - 0s 0 0 17.39054 0 139 9.00000 17.39054 93.2% - 0s 0 0 17.34176 0 138 9.00000 17.34176 92.7% - 1s 0 0 17.30813 0 138 9.00000 17.30813 92.3% - 1s 0 0 17.29276 0 139 9.00000 17.29276 92.1% - 1s 0 0 17.28125 0 139 9.00000 17.28125 92.0% - 1s 0 0 17.26905 0 138 9.00000 17.26905 91.9% - 1s 0 0 17.25514 0 140 9.00000 17.25514 91.7% - 2s 0 0 17.24702 0 140 9.00000 17.24702 91.6% - 2s 0 0 17.23522 0 140 9.00000 17.23522 91.5% - 2s 0 0 17.23123 0 140 9.00000 17.23123 91.5% - 2s 0 0 17.22228 0 140 9.00000 17.22228 91.4% - 2s 0 0 17.22050 0 140 9.00000 17.22050 91.3% - 3s 0 0 17.22002 0 140 9.00000 17.22002 91.3% - 3s 0 0 17.21810 0 140 9.00000 17.21810 91.3% - 3s 0 2 17.21618 0 140 9.00000 17.21618 91.3% - 3s 153 123 13.58018 4 66 9.00000 16.75784 86.2% 88.3 5s * 182 121 9 10.0000000 16.67033 66.7% 83.7 5s 728 145 11.38178 16 38 10.00000 12.74026 27.4% 72.8 10s Cutting planes: Clique: 184 Explored 897 nodes (62960 simplex iterations) in 10.82 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%