Gurobi 5.0.1 (linux64) logging started Sun Nov 18 00:57:32 2012 Optimize a model with 307 rows, 208 columns and 973 nonzeros Presolve time: 0.00s Presolved: 307 rows, 208 columns, 973 nonzeros Variable types: 0 continuous, 208 integer (208 binary) Found heuristic solution: objective 70.0000000 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 55 70.00000 0.00000 100% - 0s H 0 0 66.0000000 0.00000 100% - 0s H 0 0 65.0000000 0.00000 100% - 0s H 0 0 63.0000000 0.00000 100% - 0s 0 0 0.78204 0 57 63.00000 0.78204 98.8% - 0s 0 0 0.78204 0 57 63.00000 0.78204 98.8% - 0s 0 0 0.79157 0 57 63.00000 0.79157 98.7% - 0s 0 0 0.96349 0 63 63.00000 0.96349 98.5% - 0s H 0 0 62.0000000 0.96349 98.4% - 0s 0 0 0.97044 0 66 62.00000 0.97044 98.4% - 0s 0 0 0.97790 0 71 62.00000 0.97790 98.4% - 0s 0 0 0.98602 0 80 62.00000 0.98602 98.4% - 0s 0 2 1.00936 0 80 62.00000 1.00936 98.4% - 0s H 27 27 45.0000000 4.28342 90.5% 31.3 0s * 62 52 19 44.0000000 4.32727 90.2% 28.2 0s * 94 76 17 41.0000000 7.52273 81.7% 27.2 0s * 101 71 24 38.0000000 7.52273 80.2% 26.0 0s * 1566 197 29 37.0000000 23.11429 37.5% 20.7 1s * 3614 43 26 36.0000000 32.00000 11.1% 18.1 2s Cutting planes: Gomory: 1 Zero half: 2 Mod-K: 2 Explored 3695 nodes (66813 simplex iterations) in 2.62 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%