Gurobi 5.0.1 (linux64) logging started Sun Nov 18 07:01:07 2012 Optimize a model with 505 rows, 477 columns and 1737 nonzeros Presolve removed 0 rows and 18 columns Presolve time: 0.00s Presolved: 505 rows, 459 columns, 1719 nonzeros Variable types: 0 continuous, 459 integer (458 binary) Found heuristic solution: objective 100.0000000 Root relaxation: objective 0.000000e+00, 307 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 0 196 100.00000 0.00000 100% - 0s H 0 0 76.0000000 0.00000 100% - 0s H 0 0 72.0000000 0.00000 100% - 0s H 0 0 68.0000000 0.00000 100% - 0s 0 0 0.40300 0 197 68.00000 0.40300 99.4% - 0s H 0 0 56.0000000 0.40300 99.3% - 0s 0 0 1.00000 0 200 56.00000 1.00000 98.2% - 0s H 0 0 49.0000000 1.00000 98.0% - 0s H 0 0 42.0000000 1.00000 97.6% - 0s 0 0 1.00000 0 201 42.00000 1.00000 97.6% - 0s 0 0 1.00000 0 198 42.00000 1.00000 97.6% - 0s H 0 0 38.0000000 1.00000 97.4% - 0s H 0 0 36.0000000 1.00000 97.2% - 0s 0 2 1.00000 0 198 36.00000 1.00000 97.2% - 0s H 54 40 19.0000000 1.00000 94.7% 33.3 0s * 108 62 32 18.0000000 1.00000 94.4% 26.6 0s H 132 60 16.0000000 1.00000 93.8% 28.1 0s Explored 2498 nodes (64441 simplex iterations) in 3.51 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%