Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:17:44 2012 Optimize a model with 465 rows, 444 columns and 1604 nonzeros Presolve removed 0 rows and 20 columns Presolve time: 0.00s Presolved: 465 rows, 424 columns, 1584 nonzeros Variable types: 0 continuous, 424 integer (423 binary) Found heuristic solution: objective 85.0000000 Root relaxation: objective 0.000000e+00, 260 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 0 175 85.00000 0.00000 100% - 0s H 0 0 82.0000000 0.00000 100% - 0s H 0 0 65.0000000 0.00000 100% - 0s H 0 0 60.0000000 0.00000 100% - 0s 0 0 0.35529 0 176 60.00000 0.35529 99.4% - 0s H 0 0 57.0000000 0.35529 99.4% - 0s 0 0 1.00000 0 181 57.00000 1.00000 98.2% - 0s H 0 0 55.0000000 1.00000 98.2% - 0s 0 0 1.00000 0 178 55.00000 1.00000 98.2% - 0s H 0 0 48.0000000 1.00000 97.9% - 0s H 0 0 31.0000000 1.00000 96.8% - 0s 0 0 1.00000 0 180 31.00000 1.00000 96.8% - 0s 0 0 1.00000 0 175 31.00000 1.00000 96.8% - 0s H 0 0 29.0000000 1.00000 96.6% - 0s H 0 0 25.0000000 1.00000 96.0% - 0s 0 2 1.00000 0 175 25.00000 1.00000 96.0% - 0s * 29 15 18 11.0000000 2.91549 73.5% 37.4 0s Cutting planes: Gomory: 2 Explored 92 nodes (4563 simplex iterations) in 0.29 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%