Gurobi 5.0.1 (linux64) logging started Sun Nov 18 04:14:26 2012 Optimize a model with 335 rows, 253 columns and 1088 nonzeros Presolve time: 0.00s Presolved: 335 rows, 253 columns, 1088 nonzeros Variable types: 0 continuous, 253 integer (253 binary) Found heuristic solution: objective 73.0000000 Root relaxation: objective 0.000000e+00, 134 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 86 73.00000 0.00000 100% - 0s H 0 0 57.0000000 0.00000 100% - 0s H 0 0 53.0000000 0.00000 100% - 0s 0 0 0.68519 0 90 53.00000 0.68519 98.7% - 0s 0 0 0.74230 0 92 53.00000 0.74230 98.6% - 0s 0 0 0.78689 0 91 53.00000 0.78689 98.5% - 0s 0 0 0.84899 0 94 53.00000 0.84899 98.4% - 0s 0 0 0.88889 0 88 53.00000 0.88889 98.3% - 0s 0 0 0.90476 0 89 53.00000 0.90476 98.3% - 0s 0 0 0.90685 0 95 53.00000 0.90685 98.3% - 0s H 0 0 45.0000000 0.90685 98.0% - 0s H 0 0 40.0000000 0.90685 97.7% - 0s H 0 0 36.0000000 0.90685 97.5% - 0s 0 2 0.92179 0 95 36.00000 0.92179 97.4% - 0s H 27 27 29.0000000 3.47222 88.0% 30.4 0s * 36 34 23 28.0000000 3.47222 87.6% 26.5 0s * 90 56 17 27.0000000 7.37587 72.7% 24.7 0s * 119 66 11 26.0000000 7.41260 71.5% 25.1 0s Explored 4425 nodes (97306 simplex iterations) in 3.70 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.600000000000e+01, best bound 2.600000000000e+01, gap 0.0%