Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:36:28 2012 Optimize a model with 279 rows, 306 columns and 1001 nonzeros Presolve removed 0 rows and 32 columns Presolve time: 0.00s Presolved: 279 rows, 274 columns, 969 nonzeros Variable types: 0 continuous, 274 integer (273 binary) Found heuristic solution: objective 44.0000000 Root relaxation: objective 0.000000e+00, 185 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 0 122 44.00000 0.00000 100% - 0s H 0 0 37.0000000 0.00000 100% - 0s H 0 0 35.0000000 0.00000 100% - 0s H 0 0 34.0000000 0.00000 100% - 0s 0 0 0.23501 0 124 34.00000 0.23501 99.3% - 0s H 0 0 30.0000000 0.23501 99.2% - 0s H 0 0 23.0000000 0.23501 99.0% - 0s H 0 0 19.0000000 0.23501 98.8% - 0s 0 0 0.76924 0 127 19.00000 0.76924 96.0% - 0s H 0 0 17.0000000 0.76924 95.5% - 0s H 0 0 16.0000000 0.76924 95.2% - 0s H 0 0 12.0000000 0.76924 93.6% - 0s 0 0 0.77026 0 130 12.00000 0.77026 93.6% - 0s 0 0 0.77026 0 130 12.00000 0.77026 93.6% - 0s H 0 0 7.0000000 0.77026 89.0% - 0s H 0 0 6.0000000 0.77026 87.2% - 0s H 0 0 5.0000000 0.77026 84.6% - 0s 0 2 0.80975 0 130 5.00000 0.80975 83.8% - 0s * 11 9 6 3.0000000 1.16695 61.1% 42.5 0s Cutting planes: Gomory: 4 Zero half: 2 Explored 19 nodes (1256 simplex iterations) in 0.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%