Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:52:23 2012 Optimize a model with 351 rows, 358 columns and 1233 nonzeros Presolve removed 0 rows and 23 columns Presolve time: 0.00s Presolved: 351 rows, 335 columns, 1210 nonzeros Variable types: 0 continuous, 335 integer (334 binary) Found heuristic solution: objective 68.0000000 Root relaxation: objective 0.000000e+00, 211 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 0 149 68.00000 0.00000 100% - 0s H 0 0 46.0000000 0.00000 100% - 0s H 0 0 37.0000000 0.00000 100% - 0s H 0 0 32.0000000 0.00000 100% - 0s 0 0 0.21373 0 151 32.00000 0.21373 99.3% - 0s H 0 0 28.0000000 0.21373 99.2% - 0s 0 0 0.74075 0 157 28.00000 0.74075 97.4% - 0s H 0 0 21.0000000 0.74075 96.5% - 0s H 0 0 14.0000000 0.74075 94.7% - 0s 0 0 0.74075 0 161 14.00000 0.74075 94.7% - 0s 0 0 0.74075 0 157 14.00000 0.74075 94.7% - 0s H 0 0 10.0000000 0.74075 92.6% - 0s 0 2 0.78526 0 157 10.00000 0.78526 92.1% - 0s H 27 27 7.0000000 1.00000 85.7% 25.9 0s H 303 47 6.0000000 2.44211 59.3% 32.1 0s Cutting planes: Gomory: 3 Zero half: 5 Mod-K: 1 Explored 407 nodes (14032 simplex iterations) in 0.47 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%