Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:54:53 2012 Optimize a model with 359 rows, 367 columns and 1262 nonzeros Presolve removed 0 rows and 22 columns Presolve time: 0.00s Presolved: 359 rows, 345 columns, 1240 nonzeros Variable types: 0 continuous, 345 integer (344 binary) Found heuristic solution: objective 67.0000000 Root relaxation: objective 0.000000e+00, 214 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 0 157 67.00000 0.00000 100% - 0s H 0 0 49.0000000 0.00000 100% - 0s H 0 0 45.0000000 0.00000 100% - 0s H 0 0 42.0000000 0.00000 100% - 0s 0 0 0.28470 0 159 42.00000 0.28470 99.3% - 0s H 0 0 28.0000000 0.28470 99.0% - 0s 0 0 0.80019 0 167 28.00000 0.80019 97.1% - 0s H 0 0 25.0000000 0.80019 96.8% - 0s H 0 0 21.0000000 0.80019 96.2% - 0s 0 0 0.80020 0 166 21.00000 0.80020 96.2% - 0s 0 0 0.80020 0 166 21.00000 0.80020 96.2% - 0s H 0 0 16.0000000 0.80020 95.0% - 0s H 0 0 11.0000000 0.80020 92.7% - 0s 0 2 0.80220 0 166 11.00000 0.80220 92.7% - 0s * 23 21 12 6.0000000 1.48948 75.2% 27.3 0s Cutting planes: Gomory: 4 Zero half: 4 Explored 152 nodes (4940 simplex iterations) in 0.23 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%