Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:39 2012 Optimize a model with 203 rows, 121 columns and 626 nonzeros Presolve time: 0.00s Presolved: 203 rows, 121 columns, 626 nonzeros Variable types: 0 continuous, 121 integer (121 binary) Found heuristic solution: objective 53.0000000 Root relaxation: objective 0.000000e+00, 38 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 20 53.00000 0.00000 100% - 0s H 0 0 51.0000000 0.00000 100% - 0s H 0 0 49.0000000 0.00000 100% - 0s 0 0 0.82569 0 32 49.00000 0.82569 98.3% - 0s 0 0 0.95000 0 22 49.00000 0.95000 98.1% - 0s 0 0 1.00000 0 22 49.00000 1.00000 98.0% - 0s 0 0 1.00000 0 22 49.00000 1.00000 98.0% - 0s 0 0 1.00000 0 22 49.00000 1.00000 98.0% - 0s 0 0 1.00000 0 22 49.00000 1.00000 98.0% - 0s H 0 0 48.0000000 1.00000 97.9% - 0s H 0 0 45.0000000 1.00000 97.8% - 0s 0 2 1.06667 0 22 45.00000 1.06667 97.6% - 0s * 45 27 13 43.0000000 6.35714 85.2% 22.0 0s * 186 76 10 42.0000000 17.37500 58.6% 20.4 0s * 190 73 12 41.0000000 17.37500 57.6% 20.1 0s * 297 89 10 38.0000000 21.15385 44.3% 19.3 0s Cutting planes: Gomory: 1 Mod-K: 5 Explored 1120 nodes (17327 simplex iterations) in 0.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.800000000000e+01, best bound 3.800000000000e+01, gap 0.0%