Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:15:54 2012 Optimize a model with 435 rows, 428 columns and 1513 nonzeros Presolve removed 0 rows and 29 columns Presolve time: 0.00s Presolved: 435 rows, 399 columns, 1484 nonzeros Variable types: 0 continuous, 399 integer (398 binary) Found heuristic solution: objective 86.0000000 Root relaxation: objective 0.000000e+00, 242 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 0 169 86.00000 0.00000 100% - 0s H 0 0 65.0000000 0.00000 100% - 0s H 0 0 64.0000000 0.00000 100% - 0s H 0 0 61.0000000 0.00000 100% - 0s 0 0 0.35321 0 170 61.00000 0.35321 99.4% - 0s H 0 0 58.0000000 0.35321 99.4% - 0s 0 0 1.00000 0 173 58.00000 1.00000 98.3% - 0s H 0 0 55.0000000 1.00000 98.2% - 0s 0 0 1.00000 0 172 55.00000 1.00000 98.2% - 0s H 0 0 49.0000000 1.00000 98.0% - 0s 0 0 1.00000 0 172 49.00000 1.00000 98.0% - 0s 0 0 1.00000 0 171 49.00000 1.00000 98.0% - 0s H 0 0 24.0000000 1.00000 95.8% - 0s 0 2 1.00000 0 171 24.00000 1.00000 95.8% - 0s H 27 27 19.0000000 1.00000 94.7% 36.7 0s * 52 32 35 13.0000000 1.00000 92.3% 24.9 0s * 184 92 14 12.0000000 2.76692 76.9% 26.4 0s * 911 5 9 11.0000000 10.00000 9.09% 26.3 0s Cutting planes: Gomory: 3 Zero half: 1 Mod-K: 1 Explored 917 nodes (25724 simplex iterations) in 0.94 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0%