Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:05 2012 Optimize a model with 39 rows, 44 columns and 139 nonzeros Presolve removed 0 rows and 7 columns Presolve time: 0.00s Presolved: 39 rows, 37 columns, 132 nonzeros Variable types: 0 continuous, 37 integer (36 binary) Found heuristic solution: objective 4.0000000 Root relaxation: objective 0.000000e+00, 22 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 4.00000 0.00000 100% - 0s H 0 0 2.0000000 0.00000 100% - 0s 0 0 0.16949 0 19 2.00000 0.16949 91.5% - 0s 0 0 0.84211 0 21 2.00000 0.84211 57.9% - 0s 0 0 0.84211 0 5 2.00000 0.84211 57.9% - 0s 0 0 0.84444 0 10 2.00000 0.84444 57.8% - 0s 0 0 0.84878 0 11 2.00000 0.84878 57.6% - 0s 0 2 0.86207 0 11 2.00000 0.86207 56.9% - 0s Cutting planes: Gomory: 4 MIR: 1 Explored 8 nodes (122 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%