Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:02:44 2012 Optimize a model with 449 rows, 423 columns and 1543 nonzeros Presolve removed 0 rows and 11 columns Presolve time: 0.00s Presolved: 449 rows, 412 columns, 1532 nonzeros Variable types: 0 continuous, 412 integer (411 binary) Found heuristic solution: objective 96.0000000 Root relaxation: objective 0.000000e+00, 242 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 0 178 96.00000 0.00000 100% - 0s H 0 0 65.0000000 0.00000 100% - 0s H 0 0 64.0000000 0.00000 100% - 0s H 0 0 59.0000000 0.00000 100% - 0s 0 0 0.29423 0 180 59.00000 0.29423 100% - 0s H 0 0 43.0000000 0.29423 99.3% - 0s 0 0 0.95373 0 183 43.00000 0.95373 97.8% - 0s H 0 0 42.0000000 0.95373 97.7% - 0s 0 0 0.95373 0 183 42.00000 0.95373 97.7% - 0s H 0 0 41.0000000 0.95373 97.7% - 0s H 0 0 31.0000000 0.95373 96.9% - 0s H 0 0 30.0000000 0.95373 96.8% - 0s 0 2 0.95378 0 183 30.00000 0.95378 96.8% - 0s * 44 44 30 12.0000000 1.00000 91.7% 34.8 0s * 47 39 33 11.0000000 1.00000 90.9% 32.9 0s H 54 18 10.0000000 1.00000 90.0% 30.1 0s * 173 0 12 9.0000000 9.00000 0.0% 33.2 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 174 nodes (7067 simplex iterations) in 0.34 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%