Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:07:18 2012 Optimize a model with 437 rows, 422 columns and 1512 nonzeros Presolve removed 0 rows and 15 columns Presolve time: 0.00s Presolved: 437 rows, 407 columns, 1497 nonzeros Variable types: 0 continuous, 407 integer (406 binary) Found heuristic solution: objective 88.0000000 Root relaxation: objective 0.000000e+00, 262 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 0 176 88.00000 0.00000 100% - 0s H 0 0 61.0000000 0.00000 100% - 0s H 0 0 60.0000000 0.00000 100% - 0s H 0 0 53.0000000 0.00000 100% - 0s 0 0 0.38041 0 179 53.00000 0.38041 99.3% - 0s H 0 0 37.0000000 0.38041 99.0% - 0s 0 0 0.72788 0 181 37.00000 0.72788 98.0% - 0s H 0 0 34.0000000 0.72788 97.9% - 0s 0 0 0.72829 0 183 34.00000 0.72829 97.9% - 0s 0 0 0.72829 0 183 34.00000 0.72829 97.9% - 0s 0 2 0.73066 0 183 34.00000 0.73066 97.9% - 0s * 27 20 18 11.0000000 1.00000 90.9% 47.6 0s * 162 63 12 10.0000000 1.00000 90.0% 46.8 0s Cutting planes: Gomory: 3 Mod-K: 2 Explored 446 nodes (17499 simplex iterations) in 0.64 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%