Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:53:23 2012 Optimize a model with 355 rows, 362 columns and 1247 nonzeros Presolve removed 0 rows and 23 columns Presolve time: 0.00s Presolved: 355 rows, 339 columns, 1224 nonzeros Variable types: 0 continuous, 339 integer (338 binary) Found heuristic solution: objective 66.0000000 Root relaxation: objective 0.000000e+00, 200 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 144 66.00000 0.00000 100% - 0s H 0 0 54.0000000 0.00000 100% - 0s H 0 0 53.0000000 0.00000 100% - 0s H 0 0 49.0000000 0.00000 100% - 0s 0 0 0.17129 0 146 49.00000 0.17129 100% - 0s H 0 0 42.0000000 0.17129 100% - 0s 0 0 0.67113 0 149 42.00000 0.67113 98.4% - 0s H 0 0 36.0000000 0.67113 98.1% - 0s 0 0 0.67178 0 150 36.00000 0.67178 98.1% - 0s 0 0 0.67178 0 150 36.00000 0.67178 98.1% - 0s H 0 0 33.0000000 0.67178 98.0% - 0s H 0 0 23.0000000 0.67178 97.1% - 0s H 0 0 16.0000000 0.67178 95.8% - 0s 0 2 0.68658 0 150 16.00000 0.68658 95.7% - 0s H 27 27 11.0000000 1.00000 90.9% 23.6 0s H 106 41 9.0000000 1.00000 88.9% 16.0 0s H 154 56 8.0000000 1.00000 87.5% 19.0 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 475 nodes (11007 simplex iterations) in 0.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%