Gurobi 5.0.1 (linux64) logging started Sat Nov 17 19:53:37 2012 Optimize a model with 197 rows, 118 columns and 608 nonzeros Presolve time: 0.00s Presolved: 197 rows, 118 columns, 608 nonzeros Variable types: 0 continuous, 118 integer (118 binary) Found heuristic solution: objective 56.0000000 Root relaxation: objective 0.000000e+00, 37 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 20 56.00000 0.00000 100% - 0s H 0 0 50.0000000 0.00000 100% - 0s H 0 0 49.0000000 0.00000 100% - 0s 0 0 0.66667 0 22 49.00000 0.66667 98.6% - 0s 0 0 0.77778 0 22 49.00000 0.77778 98.4% - 0s 0 0 0.89518 0 32 49.00000 0.89518 98.2% - 0s 0 0 0.94444 0 22 49.00000 0.94444 98.1% - 0s 0 0 1.00000 0 22 49.00000 1.00000 98.0% - 0s 0 0 1.00000 0 22 49.00000 1.00000 98.0% - 0s 0 0 1.00000 0 22 49.00000 1.00000 98.0% - 0s 0 0 1.00000 0 22 49.00000 1.00000 98.0% - 0s H 0 0 48.0000000 1.00000 97.9% - 0s H 0 0 45.0000000 1.00000 97.8% - 0s H 0 0 43.0000000 1.00000 97.7% - 0s 0 2 1.00000 0 22 43.00000 1.00000 97.7% - 0s * 102 55 14 42.0000000 17.40000 58.6% 20.2 0s * 179 66 14 41.0000000 17.75000 56.7% 15.9 0s * 181 61 11 39.0000000 17.75000 54.5% 15.8 0s * 292 77 13 38.0000000 23.14286 39.1% 14.8 0s * 295 76 13 37.0000000 23.14286 37.5% 14.7 0s Cutting planes: Gomory: 1 Mod-K: 6 Explored 874 nodes (11513 simplex iterations) in 0.27 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.700000000000e+01, best bound 3.700000000000e+01, gap 0.0%