Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:02:45 2012 Optimize a model with 379 rows, 388 columns and 1333 nonzeros Presolve removed 0 rows and 21 columns Presolve time: 0.00s Presolved: 379 rows, 367 columns, 1312 nonzeros Variable types: 0 continuous, 367 integer (366 binary) Found heuristic solution: objective 69.0000000 Root relaxation: objective 0.000000e+00, 218 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 0 155 69.00000 0.00000 100% - 0s H 0 0 61.0000000 0.00000 100% - 0s H 0 0 50.0000000 0.00000 100% - 0s H 0 0 45.0000000 0.00000 100% - 0s 0 0 0.20023 0 157 45.00000 0.20023 100% - 0s H 0 0 34.0000000 0.20023 99.4% - 0s 0 0 0.76648 0 160 34.00000 0.76648 97.7% - 0s H 0 0 30.0000000 0.76648 97.4% - 0s H 0 0 26.0000000 0.76648 97.1% - 0s 0 0 0.76674 0 163 26.00000 0.76674 97.1% - 0s 0 0 0.76674 0 162 26.00000 0.76674 97.1% - 0s H 0 0 21.0000000 0.76674 96.3% - 0s H 0 0 17.0000000 0.76674 95.5% - 0s 0 2 0.76955 0 161 17.00000 0.76955 95.5% - 0s H 27 27 16.0000000 1.00000 93.8% 35.9 0s * 45 25 36 7.0000000 1.00000 85.7% 30.9 0s * 69 26 18 6.0000000 1.00000 83.3% 31.3 0s Cutting planes: Gomory: 3 Zero half: 6 Mod-K: 1 Explored 366 nodes (13847 simplex iterations) in 0.49 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0%