Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:10:47 2012 Optimize a model with 103 rows, 97 columns and 352 nonzeros Presolve removed 0 rows and 4 columns Presolve time: 0.00s Presolved: 103 rows, 93 columns, 348 nonzeros Variable types: 0 continuous, 93 integer (92 binary) Found heuristic solution: objective 22.0000000 Root relaxation: objective 0.000000e+00, 65 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 41 22.00000 0.00000 100% - 0s H 0 0 12.0000000 0.00000 100% - 0s H 0 0 9.0000000 0.00000 100% - 0s 0 0 0.49390 0 42 9.00000 0.49390 94.5% - 0s H 0 0 8.0000000 0.49390 93.8% - 0s 0 0 1.00000 0 43 8.00000 1.00000 87.5% - 0s 0 0 1.06519 0 46 8.00000 1.06519 86.7% - 0s H 0 0 7.0000000 1.06519 84.8% - 0s 0 0 1.09578 0 48 7.00000 1.09578 84.3% - 0s 0 2 1.10061 0 48 7.00000 1.10061 84.3% - 0s * 12 12 10 3.0000000 1.12072 62.6% 8.8 0s Cutting planes: Gomory: 4 Mod-K: 5 Explored 39 nodes (904 simplex iterations) in 0.04 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%