Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:23 2012 Optimize a model with 59 rows, 60 columns and 205 nonzeros Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 59 rows, 59 columns, 204 nonzeros Variable types: 0 continuous, 59 integer (58 binary) Found heuristic solution: objective 12.0000000 Root relaxation: objective 0.000000e+00, 38 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 24 12.00000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s H 0 0 7.0000000 0.00000 100% - 0s H 0 0 6.0000000 0.00000 100% - 0s 0 0 0.28125 0 26 6.00000 0.28125 95.3% - 0s H 0 0 4.0000000 0.28125 93.0% - 0s 0 0 0.89850 0 32 4.00000 0.89850 77.5% - 0s 0 0 0.89850 0 33 4.00000 0.89850 77.5% - 0s 0 0 0.89850 0 31 4.00000 0.89850 77.5% - 0s H 0 0 3.0000000 0.89850 70.0% - 0s 0 2 0.90242 0 31 3.00000 0.90242 69.9% - 0s * 74 4 11 2.0000000 2.00000 0.0% 9.3 0s Cutting planes: Gomory: 4 Zero half: 2 Explored 75 nodes (854 simplex iterations) in 0.02 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%