Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:57:45 2012 Optimize a model with 527 rows, 496 columns and 1811 nonzeros Presolve removed 0 rows and 15 columns Presolve time: 0.00s Presolved: 527 rows, 481 columns, 1796 nonzeros Variable types: 0 continuous, 481 integer (480 binary) Found heuristic solution: objective 99.0000000 Root relaxation: objective 0.000000e+00, 275 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 0 205 99.00000 0.00000 100% - 0s H 0 0 70.0000000 0.00000 100% - 0s 0 0 0.49009 0 206 70.00000 0.49009 99.3% - 0s H 0 0 55.0000000 0.49009 99.1% - 0s 0 0 1.01348 0 208 55.00000 1.01348 98.2% - 0s H 0 0 34.0000000 1.01348 97.0% - 0s 0 0 1.18550 0 212 34.00000 1.18550 96.5% - 0s 0 0 1.18604 0 214 34.00000 1.18604 96.5% - 0s 0 0 1.18604 0 214 34.00000 1.18604 96.5% - 0s 0 2 1.19036 0 213 34.00000 1.19036 96.5% - 0s * 46 41 25 18.0000000 1.37868 92.3% 53.0 0s H 209 83 14.0000000 1.50444 89.3% 39.2 0s Cutting planes: Gomory: 4 Zero half: 3 Mod-K: 1 Explored 1091 nodes (41982 simplex iterations) in 1.87 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%