Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:16:41 2012 Optimize a model with 395 rows, 284 columns and 1269 nonzeros Presolve time: 0.00s Presolved: 395 rows, 284 columns, 1269 nonzeros Variable types: 0 continuous, 284 integer (284 binary) Found heuristic solution: objective 66.0000000 Root relaxation: objective 0.000000e+00, 126 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 86 66.00000 0.00000 100% - 0s H 0 0 65.0000000 0.00000 100% - 0s H 0 0 61.0000000 0.00000 100% - 0s 0 0 0.50000 0 87 61.00000 0.50000 99.2% - 0s H 0 0 57.0000000 0.50000 99.1% - 0s 0 0 1.00000 0 88 57.00000 1.00000 98.2% - 0s 0 0 1.00000 0 89 57.00000 1.00000 98.2% - 0s 0 0 1.00000 0 88 57.00000 1.00000 98.2% - 0s H 0 0 53.0000000 1.00000 98.1% - 0s 0 2 1.00000 0 88 53.00000 1.00000 98.1% - 0s H 40 40 41.0000000 1.13559 97.2% 33.1 0s H 216 165 40.0000000 8.16667 79.6% 33.0 0s * 280 211 17 39.0000000 8.50000 78.2% 32.7 0s * 1001 373 27 38.0000000 14.08642 62.9% 31.1 1s * 1556 308 30 37.0000000 20.48718 44.6% 29.8 2s 4011 259 cutoff 24 37.00000 26.82759 27.5% 27.7 5s * 5038 37 26 36.0000000 33.39344 7.24% 26.7 6s Cutting planes: Gomory: 1 Zero half: 1 Mod-K: 1 Explored 5076 nodes (135815 simplex iterations) in 6.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.600000000000e+01, best bound 3.600000000000e+01, gap 0.0%