Gurobi 5.0.1 (linux64) logging started Sun Nov 18 02:25:27 2012 Optimize a model with 371 rows, 249 columns and 1174 nonzeros Presolve time: 0.00s Presolved: 371 rows, 249 columns, 1174 nonzeros Variable types: 0 continuous, 249 integer (249 binary) Found heuristic solution: objective 80.0000000 Root relaxation: objective 0.000000e+00, 104 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 64 80.00000 0.00000 100% - 0s H 0 0 75.0000000 0.00000 100% - 0s 0 0 1.04167 0 66 75.00000 1.04167 98.6% - 0s 0 0 1.08061 0 77 75.00000 1.08061 98.6% - 0s 0 0 1.09826 0 70 75.00000 1.09826 98.5% - 0s H 0 0 70.0000000 1.09826 98.4% - 0s 0 0 1.10417 0 66 70.00000 1.10417 98.4% - 0s 0 0 1.10910 0 99 70.00000 1.10910 98.4% - 0s H 0 0 68.0000000 1.10910 98.4% - 0s 0 2 1.12053 0 99 68.00000 1.12053 98.4% - 0s H 27 27 62.0000000 5.40625 91.3% 38.0 0s * 39 38 24 53.0000000 5.40625 89.8% 31.4 0s * 88 74 31 51.0000000 5.42222 89.4% 26.9 0s * 378 246 22 49.0000000 13.71795 72.0% 22.7 0s * 402 245 21 48.0000000 15.12121 68.5% 22.3 0s * 1559 390 32 44.0000000 24.33333 44.7% 21.7 1s 6129 577 37.43750 25 113 44.00000 35.00000 20.5% 17.9 5s Cutting planes: Gomory: 1 Mod-K: 5 Explored 9462 nodes (159985 simplex iterations) in 6.98 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.400000000000e+01, best bound 4.400000000000e+01, gap 0.0%