Gurobi 5.0.1 (linux64) logging started Sun Nov 18 06:15:42 2012 Optimize a model with 435 rows, 428 columns and 1513 nonzeros Presolve removed 0 rows and 28 columns Presolve time: 0.00s Presolved: 435 rows, 400 columns, 1485 nonzeros Variable types: 0 continuous, 400 integer (399 binary) Found heuristic solution: objective 68.0000000 Root relaxation: objective 0.000000e+00, 271 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 0 173 68.00000 0.00000 100% - 0s H 0 0 59.0000000 0.00000 100% - 0s H 0 0 50.0000000 0.00000 100% - 0s 0 0 0.37564 0 174 50.00000 0.37564 99.2% - 0s H 0 0 48.0000000 0.37564 99.2% - 0s 0 0 1.00000 0 177 48.00000 1.00000 97.9% - 0s H 0 0 43.0000000 1.00000 97.7% - 0s 0 0 1.00000 0 176 43.00000 1.00000 97.7% - 0s H 0 0 35.0000000 1.00000 97.1% - 0s 0 0 1.00000 0 177 35.00000 1.00000 97.1% - 0s 0 0 1.00000 0 176 35.00000 1.00000 97.1% - 0s H 0 0 34.0000000 1.00000 97.1% - 0s H 0 0 28.0000000 1.00000 96.4% - 0s 0 2 1.00000 0 176 28.00000 1.00000 96.4% - 0s H 27 27 15.0000000 1.00000 93.3% 41.3 0s * 41 32 22 14.0000000 1.00000 92.9% 36.5 0s * 70 34 18 11.0000000 1.38783 87.4% 35.2 0s * 233 43 7 10.0000000 5.00000 50.0% 33.4 0s Cutting planes: Gomory: 3 Mod-K: 1 Explored 328 nodes (11830 simplex iterations) in 0.50 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0%