Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:13:46 2012 Optimize a model with 189 rows, 154 columns and 624 nonzeros Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 189 rows, 153 columns, 623 nonzeros Variable types: 0 continuous, 153 integer (152 binary) Found heuristic solution: objective 44.0000000 Found heuristic solution: objective 41.0000000 Root relaxation: objective 0.000000e+00, 80 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 58 41.00000 0.00000 100% - 0s H 0 0 34.0000000 0.00000 100% - 0s H 0 0 31.0000000 0.00000 100% - 0s 0 0 0.34013 0 60 31.00000 0.34013 98.9% - 0s 0 0 0.93274 0 63 31.00000 0.93274 97.0% - 0s H 0 0 29.0000000 0.93274 96.8% - 0s 0 0 0.93925 0 64 29.00000 0.93925 96.8% - 0s 0 0 0.93925 0 64 29.00000 0.93925 96.8% - 0s H 0 0 28.0000000 0.93925 96.6% - 0s H 0 0 23.0000000 0.93925 95.9% - 0s H 0 0 22.0000000 0.93925 95.7% - 0s 0 2 0.94992 0 64 22.00000 0.94992 95.7% - 0s * 23 22 18 15.0000000 3.11043 79.3% 21.9 0s * 38 21 8 13.0000000 3.11580 76.0% 21.1 0s * 145 12 10 12.0000000 8.76450 27.0% 18.5 0s Cutting planes: Gomory: 4 Mod-K: 1 Explored 161 nodes (3195 simplex iterations) in 0.15 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.200000000000e+01, best bound 1.200000000000e+01, gap 0.0%