Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:33:32 2012 Optimize a model with 275 rows, 297 columns and 982 nonzeros Presolve removed 0 rows and 33 columns Presolve time: 0.00s Presolved: 275 rows, 264 columns, 949 nonzeros Variable types: 0 continuous, 264 integer (263 binary) Found heuristic solution: objective 42.0000000 Root relaxation: objective 0.000000e+00, 178 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 0 114 42.00000 0.00000 100% - 0s H 0 0 32.0000000 0.00000 100% - 0s 0 0 0.17298 0 116 32.00000 0.17298 99.5% - 0s H 0 0 31.0000000 0.17298 99.4% - 0s H 0 0 30.0000000 0.17298 99.4% - 0s 0 0 0.76331 0 119 30.00000 0.76331 97.5% - 0s H 0 0 25.0000000 0.76331 96.9% - 0s 0 0 0.76331 0 119 25.00000 0.76331 96.9% - 0s H 0 0 12.0000000 0.76331 93.6% - 0s H 0 0 8.0000000 0.76331 90.5% - 0s 0 2 0.76477 0 119 8.00000 0.76477 90.4% - 0s H 108 58 7.0000000 1.00000 85.7% 15.7 0s * 227 67 17 6.0000000 1.00000 83.3% 16.0 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 601 nodes (8527 simplex iterations) in 0.30 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%