Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:33:12 2012 Optimize a model with 255 rows, 286 columns and 921 nonzeros Presolve removed 0 rows and 24 columns Presolve time: 0.00s Presolved: 255 rows, 262 columns, 897 nonzeros Variable types: 0 continuous, 262 integer (261 binary) Found heuristic solution: objective 44.0000000 Root relaxation: objective 0.000000e+00, 173 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 0 108 44.00000 0.00000 100% - 0s H 0 0 38.0000000 0.00000 100% - 0s H 0 0 37.0000000 0.00000 100% - 0s H 0 0 35.0000000 0.00000 100% - 0s H 0 0 31.0000000 0.00000 100% - 0s 0 0 0.06393 0 110 31.00000 0.06393 100% - 0s H 0 0 30.0000000 0.06393 100% - 0s H 0 0 27.0000000 0.06393 100% - 0s 0 0 0.66667 0 115 27.00000 0.66667 97.5% - 0s H 0 0 22.0000000 0.66667 97.0% - 0s 0 0 0.66667 0 121 22.00000 0.66667 97.0% - 0s 0 0 0.66667 0 113 22.00000 0.66667 97.0% - 0s H 0 0 14.0000000 0.66667 95.2% - 0s H 0 0 7.0000000 0.66667 90.5% - 0s H 0 0 6.0000000 0.66667 88.9% - 0s H 0 0 4.0000000 0.66667 83.3% - 0s 0 2 0.66667 0 113 4.00000 0.66667 83.3% - 0s * 17 14 15 2.0000000 0.96842 51.6% 25.8 0s Cutting planes: Gomory: 4 Explored 37 nodes (1803 simplex iterations) in 0.08 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0%