Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:50:01 2012 Optimize a model with 381 rows, 368 columns and 1318 nonzeros Presolve removed 0 rows and 17 columns Presolve time: 0.00s Presolved: 381 rows, 351 columns, 1301 nonzeros Variable types: 0 continuous, 351 integer (350 binary) Found heuristic solution: objective 71.0000000 Root relaxation: objective 0.000000e+00, 206 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 0 148 71.00000 0.00000 100% - 0s H 0 0 61.0000000 0.00000 100% - 0s H 0 0 48.0000000 0.00000 100% - 0s H 0 0 42.0000000 0.00000 100% - 0s 0 0 0.36027 0 151 42.00000 0.36027 99.1% - 0s H 0 0 39.0000000 0.36027 99.1% - 0s 0 0 0.78084 0 153 39.00000 0.78084 98.0% - 0s H 0 0 31.0000000 0.78084 97.5% - 0s 0 0 0.78319 0 161 31.00000 0.78319 97.5% - 0s 0 0 0.78319 0 153 31.00000 0.78319 97.5% - 0s H 0 0 30.0000000 0.78319 97.4% - 0s H 0 0 19.0000000 0.78319 95.9% - 0s 0 2 0.78883 0 153 19.00000 0.78883 95.8% - 0s H 27 21 9.0000000 1.79838 80.0% 27.8 0s Cutting planes: Gomory: 3 Zero half: 1 Explored 172 nodes (5067 simplex iterations) in 0.22 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0%