Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:09:43 2012 Optimize a model with 85 rows, 78 columns and 288 nonzeros Presolve removed 0 rows and 3 columns Presolve time: 0.00s Presolved: 85 rows, 75 columns, 285 nonzeros Variable types: 0 continuous, 75 integer (74 binary) Found heuristic solution: objective 18.0000000 Root relaxation: objective 0.000000e+00, 46 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 32 18.00000 0.00000 100% - 0s H 0 0 8.0000000 0.00000 100% - 0s 0 0 0.37405 0 34 8.00000 0.37405 95.3% - 0s 0 0 0.97280 0 37 8.00000 0.97280 87.8% - 0s 0 0 0.98537 0 37 8.00000 0.98537 87.7% - 0s 0 2 0.99596 0 37 8.00000 0.99596 87.6% - 0s * 13 13 9 5.0000000 1.05650 78.9% 11.9 0s * 23 11 6 4.0000000 1.13280 71.7% 11.9 0s Cutting planes: Gomory: 4 Mod-K: 6 Explored 110 nodes (1371 simplex iterations) in 0.03 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0%