Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:56:58 2012 Optimize a model with 513 rows, 480 columns and 1760 nonzeros Presolve removed 0 rows and 12 columns Presolve time: 0.00s Presolved: 513 rows, 468 columns, 1748 nonzeros Variable types: 0 continuous, 468 integer (467 binary) Found heuristic solution: objective 97.0000000 Root relaxation: objective 0.000000e+00, 273 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 0 193 97.00000 0.00000 100% - 0s H 0 0 69.0000000 0.00000 100% - 0s H 0 0 66.0000000 0.00000 100% - 0s H 0 0 63.0000000 0.00000 100% - 0s 0 0 0.31927 0 195 63.00000 0.31927 99.5% - 0s H 0 0 62.0000000 0.31927 99.5% - 0s H 0 0 50.0000000 0.31927 99.4% - 0s 0 0 0.92964 0 199 50.00000 0.92964 98.1% - 0s H 0 0 36.0000000 0.92964 97.4% - 0s 0 0 0.93013 0 200 36.00000 0.93013 97.4% - 0s 0 0 0.93013 0 200 36.00000 0.93013 97.4% - 0s H 0 0 28.0000000 0.93013 96.7% - 0s 0 2 0.93125 0 200 28.00000 0.93125 96.7% - 0s H 27 27 25.0000000 1.00000 96.0% 40.1 0s H 55 51 19.0000000 1.00000 94.7% 27.7 0s H 63 43 18.0000000 1.00000 94.4% 27.8 0s H 108 40 13.0000000 1.11953 91.4% 25.6 0s Cutting planes: Gomory: 4 Zero half: 1 Explored 473 nodes (16652 simplex iterations) in 0.71 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.300000000000e+01, best bound 1.300000000000e+01, gap 0.0%