Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:11:15 2012 Optimize a model with 455 rows, 435 columns and 1570 nonzeros Presolve removed 0 rows and 24 columns Presolve time: 0.00s Presolved: 455 rows, 411 columns, 1546 nonzeros Variable types: 0 continuous, 411 integer (410 binary) Found heuristic solution: objective 88.0000000 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 0 177 88.00000 0.00000 100% - 0s H 0 0 83.0000000 0.00000 100% - 0s H 0 0 70.0000000 0.00000 100% - 0s H 0 0 67.0000000 0.00000 100% - 0s H 0 0 59.0000000 0.00000 100% - 0s 0 0 0.39706 0 178 59.00000 0.39706 99.3% - 0s H 0 0 49.0000000 0.39706 99.2% - 0s H 0 0 36.0000000 0.39706 98.9% - 0s 0 0 1.00000 0 182 36.00000 1.00000 97.2% - 0s H 0 0 27.0000000 1.00000 96.3% - 0s 0 0 1.00000 0 184 27.00000 1.00000 96.3% - 0s 0 0 1.00000 0 178 27.00000 1.00000 96.3% - 0s 0 2 1.00000 0 178 27.00000 1.00000 96.3% - 0s * 37 26 21 14.0000000 2.54627 81.8% 42.9 0s * 151 54 12 13.0000000 6.00000 53.8% 37.0 0s Cutting planes: Gomory: 3 Explored 397 nodes (13151 simplex iterations) in 0.59 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%