Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:01:07 2012 Optimize a model with 435 rows, 414 columns and 1499 nonzeros Presolve removed 0 rows and 19 columns Presolve time: 0.00s Presolved: 435 rows, 395 columns, 1480 nonzeros Variable types: 0 continuous, 395 integer (394 binary) Found heuristic solution: objective 86.0000000 Root relaxation: objective 0.000000e+00, 253 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 0 170 86.00000 0.00000 100% - 0s H 0 0 80.0000000 0.00000 100% - 0s H 0 0 48.0000000 0.00000 100% - 0s H 0 0 41.0000000 0.00000 100% - 0s 0 0 0.30633 0 172 41.00000 0.30633 99.3% - 0s H 0 0 36.0000000 0.30633 99.1% - 0s 0 0 0.76842 0 176 36.00000 0.76842 97.9% - 0s 0 0 0.76884 0 180 36.00000 0.76884 97.9% - 0s 0 0 0.76884 0 180 36.00000 0.76884 97.9% - 0s H 0 0 35.0000000 0.76884 97.8% - 0s H 0 0 29.0000000 0.76884 97.3% - 0s 0 2 0.76999 0 180 29.00000 0.76999 97.3% - 0s H 54 50 17.0000000 1.00000 94.1% 26.6 0s H 67 38 15.0000000 1.00000 93.3% 30.5 0s * 89 48 17 14.0000000 1.00000 92.9% 31.5 0s H 110 47 12.0000000 1.00000 91.7% 31.1 0s Cutting planes: Gomory: 3 Zero half: 1 Mod-K: 1 Explored 947 nodes (29066 simplex iterations) in 1.05 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%