Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:59:18 2012 Optimize a model with 299 rows, 174 columns and 919 nonzeros Presolve time: 0.00s Presolved: 299 rows, 174 columns, 919 nonzeros Variable types: 0 continuous, 174 integer (174 binary) Found heuristic solution: objective 78.0000000 Root relaxation: objective 0.000000e+00, 47 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 25 78.00000 0.00000 100% - 0s H 0 0 73.0000000 0.00000 100% - 0s H 0 0 72.0000000 0.00000 100% - 0s 0 0 0.95881 0 43 72.00000 0.95881 98.7% - 0s H 0 0 71.0000000 0.95881 98.6% - 0s 0 0 1.05429 0 44 71.00000 1.05429 98.5% - 0s 0 0 1.09374 0 44 71.00000 1.09374 98.5% - 0s 0 0 1.13320 0 44 71.00000 1.13320 98.4% - 0s 0 0 1.13320 0 44 71.00000 1.13320 98.4% - 0s 0 0 1.13320 0 44 71.00000 1.13320 98.4% - 0s 0 0 1.13320 0 44 71.00000 1.13320 98.4% - 0s H 0 0 70.0000000 1.13320 98.4% - 0s H 0 0 69.0000000 1.13320 98.4% - 0s 0 2 1.93333 0 44 69.00000 1.93333 97.2% - 0s * 166 102 16 67.0000000 19.27500 71.2% 28.7 0s * 279 138 17 66.0000000 19.90000 69.8% 25.2 0s H 352 161 62.0000000 23.71875 61.7% 25.0 0s H 352 157 61.0000000 23.71875 61.1% 25.0 0s * 355 158 16 59.0000000 23.71875 59.8% 24.8 0s * 1520 175 27 58.0000000 38.66667 33.3% 24.3 1s * 2405 175 24 57.0000000 44.00000 22.8% 23.2 1s Cutting planes: Gomory: 1 Mod-K: 4 Explored 3309 nodes (74672 simplex iterations) in 2.28 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.700000000000e+01, best bound 5.700000000000e+01, gap 0.0%