Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:32 2012 Optimize a model with 117 rows, 102 columns and 392 nonzeros Presolve removed 0 rows and 3 columns Presolve time: 0.00s Presolved: 117 rows, 99 columns, 389 nonzeros Variable types: 0 continuous, 99 integer (98 binary) Found heuristic solution: objective 24.0000000 Root relaxation: objective 0.000000e+00, 61 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 40 24.00000 0.00000 100% - 0s H 0 0 22.0000000 0.00000 100% - 0s H 0 0 19.0000000 0.00000 100% - 0s H 0 0 16.0000000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s 0 0 0.45000 0 41 12.00000 0.45000 96.2% - 0s H 0 0 11.0000000 0.45000 95.9% - 0s 0 0 1.10813 0 45 11.00000 1.10813 89.9% - 0s 0 0 1.11084 0 46 11.00000 1.11084 89.9% - 0s H 0 0 9.0000000 1.11084 87.7% - 0s H 0 0 7.0000000 1.11084 84.1% - 0s 0 2 1.11216 0 46 7.00000 1.11216 84.1% - 0s * 7 3 5 6.0000000 2.69231 55.1% 28.7 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 13 nodes (552 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%