Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:17:42 2012 Optimize a model with 465 rows, 444 columns and 1604 nonzeros Presolve removed 0 rows and 23 columns Presolve time: 0.00s Presolved: 465 rows, 421 columns, 1581 nonzeros Variable types: 0 continuous, 421 integer (420 binary) Found heuristic solution: objective 88.0000000 Root relaxation: objective 0.000000e+00, 241 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 88.00000 0.00000 100% - 0s H 0 0 80.0000000 0.00000 100% - 0s H 0 0 70.0000000 0.00000 100% - 0s H 0 0 66.0000000 0.00000 100% - 0s 0 0 0.27885 0 183 66.00000 0.27885 100% - 0s H 0 0 61.0000000 0.27885 100% - 0s 0 0 0.81109 0 184 61.00000 0.81109 98.7% - 0s H 0 0 58.0000000 0.81109 98.6% - 0s H 0 0 56.0000000 0.81109 98.6% - 0s 0 0 0.81279 0 187 56.00000 0.81279 98.5% - 0s 0 0 0.81279 0 187 56.00000 0.81279 98.5% - 0s H 0 0 54.0000000 0.81279 98.5% - 0s H 0 0 51.0000000 0.81279 98.4% - 0s H 0 0 45.0000000 0.81279 98.2% - 0s 0 2 0.81559 0 185 45.00000 0.81559 98.2% - 0s H 27 27 43.0000000 1.00000 97.7% 37.4 0s * 43 24 26 14.0000000 1.00000 92.9% 28.7 0s H 191 42 13.0000000 5.82979 55.2% 33.9 0s Cutting planes: Gomory: 4 Zero half: 2 Explored 298 nodes (10647 simplex iterations) in 0.48 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%