Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:54:23 2012 Optimize a model with 357 rows, 365 columns and 1255 nonzeros Presolve removed 0 rows and 26 columns Presolve time: 0.00s Presolved: 357 rows, 339 columns, 1229 nonzeros Variable types: 0 continuous, 339 integer (338 binary) Found heuristic solution: objective 50.0000000 Root relaxation: objective 0.000000e+00, 198 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 0 139 50.00000 0.00000 100% - 0s H 0 0 47.0000000 0.00000 100% - 0s 0 0 0.14416 0 141 47.00000 0.14416 100% - 0s H 0 0 33.0000000 0.14416 100% - 0s H 0 0 29.0000000 0.14416 100% - 0s 0 0 0.78855 0 149 29.00000 0.78855 97.3% - 0s H 0 0 25.0000000 0.78855 96.8% - 0s 0 0 0.78855 0 149 25.00000 0.78855 96.8% - 0s H 0 0 24.0000000 0.78855 96.7% - 0s H 0 0 18.0000000 0.78855 95.6% - 0s H 0 0 16.0000000 0.78855 95.1% - 0s 0 2 0.81282 0 149 16.00000 0.81282 94.9% - 0s * 20 18 14 7.0000000 1.00000 85.7% 49.4 0s Cutting planes: Gomory: 4 Mod-K: 1 Explored 255 nodes (9052 simplex iterations) in 0.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%