Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:05:24 2012 Optimize a model with 391 rows, 397 columns and 1372 nonzeros Presolve removed 0 rows and 30 columns Presolve time: 0.00s Presolved: 391 rows, 367 columns, 1342 nonzeros Variable types: 0 continuous, 367 integer (366 binary) Found heuristic solution: objective 69.0000000 Root relaxation: objective 0.000000e+00, 233 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 0 152 69.00000 0.00000 100% - 0s H 0 0 52.0000000 0.00000 100% - 0s H 0 0 48.0000000 0.00000 100% - 0s H 0 0 45.0000000 0.00000 100% - 0s 0 0 0.24356 0 154 45.00000 0.24356 99.5% - 0s H 0 0 38.0000000 0.24356 99.4% - 0s 0 0 0.84933 0 163 38.00000 0.84933 97.8% - 0s H 0 0 27.0000000 0.84933 96.9% - 0s 0 0 0.84933 0 162 27.00000 0.84933 96.9% - 0s 0 0 0.84934 0 159 27.00000 0.84934 96.9% - 0s 0 0 0.84934 0 162 27.00000 0.84934 96.9% - 0s 0 0 0.84934 0 158 27.00000 0.84934 96.9% - 0s 0 2 0.85111 0 158 27.00000 0.85111 96.8% - 0s H 18 18 17.0000000 1.00000 94.1% 77.7 0s H 54 30 9.0000000 1.00000 88.9% 35.6 0s Cutting planes: Gomory: 4 Zero half: 5 Explored 730 nodes (21124 simplex iterations) in 0.76 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%