Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:21:32 2012 Optimize a model with 471 rows, 449 columns and 1624 nonzeros Presolve removed 0 rows and 17 columns Presolve time: 0.00s Presolved: 471 rows, 432 columns, 1607 nonzeros Variable types: 0 continuous, 432 integer (431 binary) Found heuristic solution: objective 93.0000000 Root relaxation: objective 0.000000e+00, 247 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 0 183 93.00000 0.00000 100% - 0s H 0 0 79.0000000 0.00000 100% - 0s H 0 0 58.0000000 0.00000 100% - 0s H 0 0 51.0000000 0.00000 100% - 0s 0 0 0.35762 0 185 51.00000 0.35762 99.3% - 0s H 0 0 46.0000000 0.35762 99.2% - 0s 0 0 0.66667 0 185 46.00000 0.66667 98.6% - 0s H 0 0 39.0000000 0.66667 98.3% - 0s H 0 0 33.0000000 0.66667 98.0% - 0s 0 0 0.66667 0 190 33.00000 0.66667 98.0% - 0s H 0 0 31.0000000 0.66667 97.8% - 0s 0 0 0.66667 0 187 31.00000 0.66667 97.8% - 0s 0 0 0.66667 0 185 31.00000 0.66667 97.8% - 0s H 0 0 29.0000000 0.66667 97.7% - 0s H 0 0 25.0000000 0.66667 97.3% - 0s 0 0 0.66667 0 185 25.00000 0.66667 97.3% - 0s 0 0 0.66667 0 187 25.00000 0.66667 97.3% - 0s 0 0 0.66667 0 187 25.00000 0.66667 97.3% - 0s 0 2 0.66667 0 187 25.00000 0.66667 97.3% - 0s * 37 33 20 12.0000000 1.71739 85.7% 27.3 0s * 229 28 8 11.0000000 7.89873 28.2% 33.6 0s Cutting planes: Gomory: 2 Mod-K: 1 Explored 264 nodes (11468 simplex iterations) in 0.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%