Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:27:29 2012 Optimize a model with 291 rows, 298 columns and 1023 nonzeros Presolve removed 0 rows and 24 columns Presolve time: 0.00s Presolved: 291 rows, 274 columns, 999 nonzeros Variable types: 0 continuous, 274 integer (273 binary) Found heuristic solution: objective 58.0000000 Root relaxation: objective 0.000000e+00, 186 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 0 117 58.00000 0.00000 100% - 0s H 0 0 37.0000000 0.00000 100% - 0s 0 0 0.30500 0 119 37.00000 0.30500 99.2% - 0s H 0 0 25.0000000 0.30500 98.8% - 0s 0 0 0.79747 0 122 25.00000 0.79747 96.8% - 0s H 0 0 19.0000000 0.79747 95.8% - 0s 0 0 0.79799 0 125 19.00000 0.79799 95.8% - 0s 0 0 0.79799 0 124 19.00000 0.79799 95.8% - 0s 0 2 0.79896 0 123 19.00000 0.79896 95.8% - 0s * 29 15 19 6.0000000 1.00000 83.3% 31.4 0s Cutting planes: Gomory: 3 Zero half: 1 Explored 72 nodes (2282 simplex iterations) in 0.11 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%