Gurobi 5.0.1 (linux64) logging started Sun Nov 18 05:50:01 2012 Optimize a model with 335 rows, 345 columns and 1180 nonzeros Presolve removed 0 rows and 23 columns Presolve time: 0.00s Presolved: 335 rows, 322 columns, 1157 nonzeros Variable types: 0 continuous, 322 integer (321 binary) Found heuristic solution: objective 53.0000000 Root relaxation: objective 0.000000e+00, 210 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 0 135 53.00000 0.00000 100% - 0s H 0 0 46.0000000 0.00000 100% - 0s H 0 0 37.0000000 0.00000 100% - 0s 0 0 0.22924 0 136 37.00000 0.22924 99.4% - 0s H 0 0 30.0000000 0.22924 99.2% - 0s 0 0 1.00000 0 139 30.00000 1.00000 96.7% - 0s H 0 0 22.0000000 1.00000 95.5% - 0s H 0 0 19.0000000 1.00000 94.7% - 0s 0 0 1.00000 0 138 19.00000 1.00000 94.7% - 0s 0 0 1.00000 0 140 19.00000 1.00000 94.7% - 0s 0 0 1.00000 0 135 19.00000 1.00000 94.7% - 0s H 0 0 17.0000000 1.00000 94.1% - 0s H 0 0 15.0000000 1.00000 93.3% - 0s 0 2 1.00000 0 135 15.00000 1.00000 93.3% - 0s * 26 26 17 11.0000000 1.05747 90.4% 51.6 0s H 27 16 10.0000000 1.05747 89.4% 49.7 0s H 81 40 9.0000000 2.18182 75.8% 36.0 0s H 108 32 8.0000000 2.71877 66.0% 35.3 0s * 120 29 13 7.0000000 2.74102 60.8% 33.9 0s Cutting planes: Gomory: 2 Explored 205 nodes (6466 simplex iterations) in 0.26 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%