Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:32 2012 Optimize a model with 27 rows, 26 columns and 91 nonzeros Presolve time: 0.00s Presolved: 27 rows, 26 columns, 91 nonzeros Variable types: 0 continuous, 26 integer (26 binary) Found heuristic solution: objective 6.0000000 Root relaxation: objective 0.000000e+00, 15 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 9 6.00000 0.00000 100% - 0s H 0 0 3.0000000 0.00000 100% - 0s 0 0 0.28571 0 11 3.00000 0.28571 90.5% - 0s H 0 0 2.0000000 0.28571 85.7% - 0s 0 0 0.75000 0 15 2.00000 0.75000 62.5% - 0s 0 0 0.75000 0 16 2.00000 0.75000 62.5% - 0s 0 0 0.75000 0 15 2.00000 0.75000 62.5% - 0s 0 2 0.85714 0 15 2.00000 0.85714 57.1% - 0s Cutting planes: Gomory: 3 Explored 9 nodes (84 simplex iterations) in 0.01 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%