Gurobi 5.0.1 (linux64) logging started Sun Nov 18 01:04:23 2012 Optimize a model with 297 rows, 205 columns and 945 nonzeros Presolve time: 0.00s Presolved: 297 rows, 205 columns, 945 nonzeros Variable types: 0 continuous, 205 integer (205 binary) Found heuristic solution: objective 72.0000000 Root relaxation: objective 0.000000e+00, 86 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 57 72.00000 0.00000 100% - 0s H 0 0 70.0000000 0.00000 100% - 0s H 0 0 62.0000000 0.00000 100% - 0s 0 0 0.82647 0 63 62.00000 0.82647 98.7% - 0s H 0 0 54.0000000 0.82647 98.5% - 0s 0 0 0.90150 0 59 54.00000 0.90150 98.3% - 0s 0 0 0.90513 0 64 54.00000 0.90513 98.3% - 0s H 0 0 51.0000000 0.90513 98.2% - 0s 0 2 0.92047 0 64 51.00000 0.92047 98.2% - 0s * 38 36 23 39.0000000 3.62500 90.7% 28.2 0s * 636 304 26 38.0000000 15.16071 60.1% 21.4 0s * 659 299 23 37.0000000 15.16071 59.0% 21.8 0s * 687 289 25 36.0000000 15.16071 57.9% 21.7 0s * 1983 219 22 35.0000000 25.02041 28.5% 19.0 1s Cutting planes: Gomory: 1 Zero half: 1 Mod-K: 2 Explored 3471 nodes (60833 simplex iterations) in 2.39 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.500000000000e+01, best bound 3.500000000000e+01, gap 0.0%