Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:39:55 2012 Optimize a model with 301 rows, 321 columns and 1071 nonzeros Presolve removed 0 rows and 26 columns Presolve time: 0.00s Presolved: 301 rows, 295 columns, 1045 nonzeros Variable types: 0 continuous, 295 integer (294 binary) Found heuristic solution: objective 44.0000000 Root relaxation: objective 0.000000e+00, 189 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 0 116 44.00000 0.00000 100% - 0s H 0 0 43.0000000 0.00000 100% - 0s H 0 0 40.0000000 0.00000 100% - 0s H 0 0 36.0000000 0.00000 100% - 0s 0 0 0.06322 0 117 36.00000 0.06322 100% - 0s H 0 0 28.0000000 0.06322 100% - 0s 0 0 1.00000 0 119 28.00000 1.00000 96.4% - 0s H 0 0 20.0000000 1.00000 95.0% - 0s 0 0 1.00000 0 119 20.00000 1.00000 95.0% - 0s 0 0 1.00000 0 117 20.00000 1.00000 95.0% - 0s H 0 0 15.0000000 1.00000 93.3% - 0s H 0 0 11.0000000 1.00000 90.9% - 0s 0 2 1.00000 0 107 11.00000 1.00000 90.9% - 0s H 26 11 6.0000000 1.00000 83.3% 23.8 0s H 40 8 4.0000000 1.00000 75.0% 30.9 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 86 nodes (3174 simplex iterations) in 0.13 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%