Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:37:47 2012 Optimize a model with 37 rows, 38 columns and 128 nonzeros Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 37 rows, 36 columns, 126 nonzeros Variable types: 0 continuous, 36 integer (35 binary) Found heuristic solution: objective 9.0000000 Root relaxation: objective 0.000000e+00, 23 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 17 9.00000 0.00000 100% - 0s H 0 0 5.0000000 0.00000 100% - 0s H 0 0 4.0000000 0.00000 100% - 0s H 0 0 3.0000000 0.00000 100% - 0s 0 0 0.41176 0 18 3.00000 0.41176 86.3% - 0s 0 0 1.00000 0 18 3.00000 1.00000 66.7% - 0s 0 0 1.00000 0 13 3.00000 1.00000 66.7% - 0s 0 2 1.00000 0 13 3.00000 1.00000 66.7% - 0s * 5 3 4 2.0000000 1.75000 12.5% 11.8 0s Cutting planes: Gomory: 1 Explored 6 nodes (214 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%