Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:21:51 2012 Optimize a model with 231 rows, 183 columns and 758 nonzeros Presolve removed 0 rows and 1 columns Presolve time: 0.00s Presolved: 231 rows, 182 columns, 757 nonzeros Variable types: 0 continuous, 182 integer (181 binary) Found heuristic solution: objective 54.0000000 Root relaxation: objective 0.000000e+00, 87 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 66 54.00000 0.00000 100% - 0s H 0 0 45.0000000 0.00000 100% - 0s H 0 0 44.0000000 0.00000 100% - 0s 0 0 0.48485 0 67 44.00000 0.48485 98.9% - 0s H 0 0 40.0000000 0.48485 98.8% - 0s 0 0 1.00000 0 68 40.00000 1.00000 97.5% - 0s H 0 0 35.0000000 1.00000 97.1% - 0s H 0 0 32.0000000 1.00000 96.9% - 0s 0 0 1.29377 0 69 32.00000 1.29377 96.0% - 0s H 0 0 31.0000000 1.29377 95.8% - 0s 0 0 1.29897 0 69 31.00000 1.29897 95.8% - 0s H 0 0 29.0000000 1.29897 95.5% - 0s H 0 0 26.0000000 1.29897 95.0% - 0s H 0 0 25.0000000 1.29897 94.8% - 0s 0 2 1.30155 0 69 25.00000 1.30155 94.8% - 0s * 25 21 17 21.0000000 3.60550 82.8% 31.4 0s * 65 32 10 17.0000000 6.04868 64.4% 30.2 0s Cutting planes: Gomory: 4 Mod-K: 1 Explored 332 nodes (9061 simplex iterations) in 0.33 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.700000000000e+01, best bound 1.700000000000e+01, gap 0.0%