Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:36:28 2012 Optimize a model with 279 rows, 306 columns and 1001 nonzeros Presolve removed 0 rows and 26 columns Presolve time: 0.00s Presolved: 279 rows, 280 columns, 975 nonzeros Variable types: 0 continuous, 280 integer (279 binary) Found heuristic solution: objective 45.0000000 Root relaxation: objective 0.000000e+00, 205 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 0 119 45.00000 0.00000 100% - 0s H 0 0 31.0000000 0.00000 100% - 0s H 0 0 28.0000000 0.00000 100% - 0s H 0 0 20.0000000 0.00000 100% - 0s 0 0 0.20048 0 121 20.00000 0.20048 99.0% - 0s H 0 0 13.0000000 0.20048 98.5% - 0s H 0 0 12.0000000 0.20048 98.3% - 0s 0 0 0.78124 0 125 12.00000 0.78124 93.5% - 0s H 0 0 6.0000000 0.78124 87.0% - 0s 0 0 0.78139 0 129 6.00000 0.78139 87.0% - 0s 0 0 0.78139 0 127 6.00000 0.78139 87.0% - 0s H 0 0 4.0000000 0.78139 80.5% - 0s 0 2 0.85041 0 127 4.00000 0.85041 78.7% - 0s H 27 9 3.0000000 1.00000 66.7% 18.0 0s * 34 3 5 2.0000000 1.00000 50.0% 18.5 0s Cutting planes: Gomory: 4 Mod-K: 1 Explored 38 nodes (1463 simplex iterations) in 0.10 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%