Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:33:11 2012 Optimize a model with 259 rows, 288 columns and 933 nonzeros Presolve removed 0 rows and 28 columns Presolve time: 0.00s Presolved: 259 rows, 260 columns, 905 nonzeros Variable types: 0 continuous, 260 integer (259 binary) Found heuristic solution: objective 44.0000000 Root relaxation: objective 0.000000e+00, 176 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 0 107 44.00000 0.00000 100% - 0s H 0 0 24.0000000 0.00000 100% - 0s H 0 0 22.0000000 0.00000 100% - 0s H 0 0 10.0000000 0.00000 100% - 0s 0 0 0.11530 0 109 10.00000 0.11530 98.8% - 0s H 0 0 8.0000000 0.11530 98.6% - 0s H 0 0 6.0000000 0.11530 98.1% - 0s 0 0 0.66667 0 111 6.00000 0.66667 88.9% - 0s 0 0 0.66667 0 117 6.00000 0.66667 88.9% - 0s 0 0 0.66667 0 109 6.00000 0.66667 88.9% - 0s H 0 0 5.0000000 0.66667 86.7% - 0s H 0 0 2.0000000 0.66667 66.7% - 0s 0 0 0.66667 0 49 2.00000 0.66667 66.7% - 0s 0 0 0.66667 0 50 2.00000 0.66667 66.7% - 0s 0 0 0.66667 0 48 2.00000 0.66667 66.7% - 0s 0 0 0.66667 0 53 2.00000 0.66667 66.7% - 0s 0 0 0.66667 0 52 2.00000 0.66667 66.7% - 0s 0 2 0.66667 0 51 2.00000 0.66667 66.7% - 0s Cutting planes: Gomory: 2 Zero half: 1 Explored 21 nodes (1817 simplex iterations) in 0.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%