Gurobi 5.0.1 (linux64) logging started Sat Nov 17 23:42:50 2012 Optimize a model with 211 rows, 149 columns and 674 nonzeros Presolve time: 0.00s Presolved: 211 rows, 149 columns, 674 nonzeros Variable types: 0 continuous, 149 integer (149 binary) Found heuristic solution: objective 52.0000000 Found heuristic solution: objective 48.0000000 Root relaxation: objective 0.000000e+00, 69 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 44 48.00000 0.00000 100% - 0s H 0 0 39.0000000 0.00000 100% - 0s 0 0 0.57895 0 45 39.00000 0.57895 98.5% - 0s H 0 0 37.0000000 0.57895 98.4% - 0s 0 0 1.06452 0 46 37.00000 1.06452 97.1% - 0s H 0 0 35.0000000 1.06452 97.0% - 0s 0 0 1.44580 0 48 35.00000 1.44580 95.9% - 0s 0 0 1.46699 0 49 35.00000 1.46699 95.8% - 0s H 0 0 32.0000000 1.46699 95.4% - 0s 0 0 1.48181 0 51 32.00000 1.48181 95.4% - 0s 0 2 1.50829 0 51 32.00000 1.50829 95.3% - 0s * 27 27 14 31.0000000 4.30364 86.1% 23.2 0s * 50 38 12 29.0000000 4.35118 85.0% 22.7 0s * 110 59 17 28.0000000 7.23445 74.2% 20.8 0s * 159 80 10 27.0000000 9.41608 65.1% 21.9 0s * 176 89 18 26.0000000 10.19870 60.8% 21.1 0s * 299 94 16 25.0000000 12.78926 48.8% 19.4 0s H 364 80 23.0000000 13.55367 41.1% 19.4 0s * 478 67 11 22.0000000 15.11818 31.3% 20.0 0s Cutting planes: Gomory: 4 Mod-K: 3 Explored 677 nodes (13419 simplex iterations) in 0.37 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.200000000000e+01, best bound 2.200000000000e+01, gap 0.0%