Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:30 2012 Optimize a model with 51 rows, 58 columns and 183 nonzeros Presolve removed 0 rows and 7 columns Presolve time: 0.00s Presolved: 51 rows, 51 columns, 176 nonzeros Variable types: 0 continuous, 51 integer (50 binary) Found heuristic solution: objective 8.0000000 Root relaxation: objective 0.000000e+00, 30 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 25 8.00000 0.00000 100% - 0s H 0 0 4.0000000 0.00000 100% - 0s H 0 0 3.0000000 0.00000 100% - 0s H 0 0 2.0000000 0.00000 100% - 0s 0 0 0.21429 0 26 2.00000 0.21429 89.3% - 0s 0 0 1.00000 0 18 2.00000 1.00000 50.0% - 0s * 0 0 0 1.0000000 1.00000 0.0% - 0s Cutting planes: Gomory: 1 Zero half: 1 Explored 0 nodes (122 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+00, best bound 1.000000000000e+00, gap 0.0%