Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:06:58 2012 Optimize a model with 527 rows, 489 columns and 1804 nonzeros Presolve removed 0 rows and 13 columns Presolve time: 0.00s Presolved: 527 rows, 476 columns, 1791 nonzeros Variable types: 0 continuous, 476 integer (475 binary) Found heuristic solution: objective 111.0000000 Root relaxation: objective 0.000000e+00, 249 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 0 191 111.00000 0.00000 100% - 0s H 0 0 96.0000000 0.00000 100% - 0s H 0 0 95.0000000 0.00000 100% - 0s H 0 0 88.0000000 0.00000 100% - 0s H 0 0 82.0000000 0.00000 100% - 0s 0 0 0.39267 0 192 82.00000 0.39267 100% - 0s H 0 0 72.0000000 0.39267 99.5% - 0s 0 0 1.00000 0 197 72.00000 1.00000 98.6% - 0s H 0 0 71.0000000 1.00000 98.6% - 0s 0 0 1.00000 0 197 71.00000 1.00000 98.6% - 0s 0 0 1.00000 0 195 71.00000 1.00000 98.6% - 0s H 0 0 68.0000000 1.00000 98.5% - 0s H 0 0 67.0000000 1.00000 98.5% - 0s H 0 0 57.0000000 1.00000 98.2% - 0s 0 2 1.00000 0 195 57.00000 1.00000 98.2% - 0s H 27 27 43.0000000 1.00000 97.7% 48.0 0s H 54 47 18.0000000 1.00000 94.4% 33.1 0s * 213 98 12 16.0000000 3.88889 75.7% 40.7 0s Cutting planes: Gomory: 2 Zero half: 4 Explored 721 nodes (28112 simplex iterations) in 1.20 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.600000000000e+01, best bound 1.600000000000e+01, gap 0.0%