Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:52:55 2012 Optimize a model with 351 rows, 359 columns and 1234 nonzeros Presolve removed 0 rows and 20 columns Presolve time: 0.00s Presolved: 351 rows, 339 columns, 1214 nonzeros Variable types: 0 continuous, 339 integer (338 binary) Found heuristic solution: objective 62.0000000 Root relaxation: objective 0.000000e+00, 230 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 0 138 62.00000 0.00000 100% - 0s H 0 0 54.0000000 0.00000 100% - 0s H 0 0 40.0000000 0.00000 100% - 0s H 0 0 36.0000000 0.00000 100% - 0s 0 0 0.21976 0 139 36.00000 0.21976 99.4% - 0s H 0 0 35.0000000 0.21976 99.4% - 0s 0 0 1.00000 0 143 35.00000 1.00000 97.1% - 0s H 0 0 28.0000000 1.00000 96.4% - 0s H 0 0 21.0000000 1.00000 95.2% - 0s 0 0 1.00000 0 141 21.00000 1.00000 95.2% - 0s H 0 0 17.0000000 1.00000 94.1% - 0s H 0 0 14.0000000 1.00000 92.9% - 0s 0 2 1.00000 0 124 14.00000 1.00000 92.9% - 0s H 27 27 12.0000000 1.00000 91.7% 42.7 0s * 37 30 28 7.0000000 1.00000 85.7% 37.6 0s * 52 23 9 6.0000000 1.00000 83.3% 37.9 0s * 110 34 19 5.0000000 1.06780 78.6% 32.1 0s Cutting planes: Gomory: 3 Explored 224 nodes (7256 simplex iterations) in 0.28 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%