Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:57:25 2012 Optimize a model with 379 rows, 381 columns and 1326 nonzeros Presolve removed 0 rows and 25 columns Presolve time: 0.00s Presolved: 379 rows, 356 columns, 1301 nonzeros Variable types: 0 continuous, 356 integer (355 binary) Found heuristic solution: objective 65.0000000 Root relaxation: objective 0.000000e+00, 219 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 0 134 65.00000 0.00000 100% - 0s H 0 0 43.0000000 0.00000 100% - 0s 0 0 0.10092 0 136 43.00000 0.10092 100% - 0s H 0 0 41.0000000 0.10092 100% - 0s H 0 0 33.0000000 0.10092 100% - 0s 0 0 0.72122 0 143 33.00000 0.72122 97.8% - 0s H 0 0 31.0000000 0.72122 97.7% - 0s 0 0 0.72122 0 142 31.00000 0.72122 97.7% - 0s H 0 0 29.0000000 0.72122 97.5% - 0s H 0 0 26.0000000 0.72122 97.2% - 0s H 0 0 23.0000000 0.72122 96.9% - 0s 0 2 0.72234 0 142 23.00000 0.72234 96.9% - 0s H 27 27 18.0000000 1.00000 94.4% 46.1 0s * 35 27 22 8.0000000 1.00000 87.5% 38.4 0s Cutting planes: Gomory: 4 Explored 465 nodes (12932 simplex iterations) in 0.46 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%