Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:51:52 2012 Optimize a model with 339 rows, 351 columns and 1196 nonzeros Presolve removed 0 rows and 22 columns Presolve time: 0.00s Presolved: 339 rows, 329 columns, 1174 nonzeros Variable types: 0 continuous, 329 integer (328 binary) Found heuristic solution: objective 60.0000000 Root relaxation: objective 0.000000e+00, 217 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 0 145 60.00000 0.00000 100% - 0s H 0 0 44.0000000 0.00000 100% - 0s H 0 0 43.0000000 0.00000 100% - 0s 0 0 0.23979 0 147 43.00000 0.23979 99.4% - 0s H 0 0 37.0000000 0.23979 99.4% - 0s H 0 0 36.0000000 0.23979 99.3% - 0s 0 0 0.82387 0 152 36.00000 0.82387 97.7% - 0s H 0 0 21.0000000 0.82387 96.1% - 0s 0 0 0.82387 0 152 21.00000 0.82387 96.1% - 0s H 0 0 19.0000000 0.82387 95.7% - 0s 0 2 0.82488 0 152 19.00000 0.82488 95.7% - 0s H 27 27 9.0000000 1.00000 88.9% 36.1 0s * 44 25 32 8.0000000 1.00000 87.5% 25.1 0s H 72 19 6.0000000 1.00000 83.3% 22.7 0s H 80 18 5.0000000 1.00000 80.0% 25.5 0s Cutting planes: Gomory: 4 Explored 168 nodes (6838 simplex iterations) in 0.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0%