Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:12:54 2012 Optimize a model with 161 rows, 137 columns and 537 nonzeros Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 161 rows, 135 columns, 535 nonzeros Variable types: 0 continuous, 135 integer (134 binary) Found heuristic solution: objective 35.0000000 Root relaxation: objective 0.000000e+00, 85 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 54 35.00000 0.00000 100% - 0s H 0 0 28.0000000 0.00000 100% - 0s H 0 0 27.0000000 0.00000 100% - 0s H 0 0 26.0000000 0.00000 100% - 0s 0 0 0.38258 0 56 26.00000 0.38258 98.5% - 0s H 0 0 20.0000000 0.38258 98.1% - 0s 0 0 0.91255 0 58 20.00000 0.91255 95.4% - 0s H 0 0 17.0000000 0.91255 94.6% - 0s H 0 0 16.0000000 0.91255 94.3% - 0s 0 0 0.91515 0 59 16.00000 0.91515 94.3% - 0s 0 0 0.91515 0 59 16.00000 0.91515 94.3% - 0s 0 2 0.93193 0 59 16.00000 0.93193 94.2% - 0s * 11 11 8 8.0000000 3.32960 58.4% 31.2 0s * 34 1 5 7.0000000 6.30753 9.89% 22.5 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 35 nodes (1155 simplex iterations) in 0.09 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0%