Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:53:53 2012 Optimize a model with 395 rows, 383 columns and 1368 nonzeros Presolve removed 0 rows and 18 columns Presolve time: 0.00s Presolved: 395 rows, 365 columns, 1350 nonzeros Variable types: 0 continuous, 365 integer (364 binary) Found heuristic solution: objective 75.0000000 Root relaxation: objective 0.000000e+00, 216 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 0 158 75.00000 0.00000 100% - 0s H 0 0 62.0000000 0.00000 100% - 0s H 0 0 49.0000000 0.00000 100% - 0s H 0 0 43.0000000 0.00000 100% - 0s 0 0 0.37874 0 159 43.00000 0.37874 99.1% - 0s H 0 0 37.0000000 0.37874 99.0% - 0s 0 0 1.00000 0 160 37.00000 1.00000 97.3% - 0s H 0 0 31.0000000 1.00000 96.8% - 0s 0 0 1.05126 0 164 31.00000 1.05126 96.6% - 0s 0 0 1.10726 0 162 31.00000 1.10726 96.4% - 0s H 0 0 20.0000000 1.10726 94.5% - 0s 0 0 1.10900 0 165 20.00000 1.10900 94.5% - 0s 0 0 1.10900 0 162 20.00000 1.10900 94.5% - 0s 0 2 1.15297 0 162 20.00000 1.15297 94.2% - 0s H 27 23 11.0000000 1.23710 88.8% 33.7 0s H 54 22 10.0000000 2.81578 71.8% 36.9 0s Cutting planes: Gomory: 4 Zero half: 1 Explored 138 nodes (5313 simplex iterations) in 0.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%