Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:21:33 2012 Optimize a model with 475 rows, 451 columns and 1636 nonzeros Presolve removed 0 rows and 22 columns Presolve time: 0.00s Presolved: 475 rows, 429 columns, 1614 nonzeros Variable types: 0 continuous, 429 integer (428 binary) Found heuristic solution: objective 97.0000000 Root relaxation: objective 0.000000e+00, 247 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 0 181 97.00000 0.00000 100% - 0s H 0 0 52.0000000 0.00000 100% - 0s 0 0 0.39308 0 182 52.00000 0.39308 99.2% - 0s H 0 0 45.0000000 0.39308 99.1% - 0s 0 0 1.00000 0 184 45.00000 1.00000 97.8% - 0s H 0 0 43.0000000 1.00000 97.7% - 0s H 0 0 39.0000000 1.00000 97.4% - 0s 0 0 1.00000 0 186 39.00000 1.00000 97.4% - 0s 0 0 1.00000 0 179 39.00000 1.00000 97.4% - 0s 0 2 1.00000 0 179 39.00000 1.00000 97.4% - 0s H 27 27 35.0000000 1.00000 97.1% 52.1 0s H 36 25 16.0000000 1.00000 93.8% 40.9 0s H 165 70 14.0000000 3.62963 74.1% 38.0 0s Cutting planes: Gomory: 3 Explored 545 nodes (18363 simplex iterations) in 0.80 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.400000000000e+01, best bound 1.400000000000e+01, gap 0.0%