Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:32:07 2012 Optimize a model with 333 rows, 243 columns and 1073 nonzeros Presolve removed 0 rows and 2 columns Presolve time: 0.00s Presolved: 333 rows, 241 columns, 1071 nonzeros Variable types: 0 continuous, 241 integer (240 binary) Found heuristic solution: objective 59.0000000 Root relaxation: objective 0.000000e+00, 113 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 74 59.00000 0.00000 100% - 0s H 0 0 54.0000000 0.00000 100% - 0s 0 0 0.60811 0 75 54.00000 0.60811 98.9% - 0s 0 0 1.21185 0 78 54.00000 1.21185 97.8% - 0s H 0 0 49.0000000 1.21185 97.5% - 0s 0 0 1.22213 0 78 49.00000 1.22213 97.5% - 0s 0 2 1.23261 0 78 49.00000 1.23261 97.5% - 0s * 48 45 29 38.0000000 3.52101 90.7% 28.4 0s * 260 210 25 36.0000000 6.80159 81.1% 31.8 0s H 270 205 35.0000000 6.84857 80.4% 31.7 0s * 1383 480 28 34.0000000 15.84000 53.4% 25.6 1s 5982 838 30.38710 21 123 34.00000 23.53061 30.8% 21.6 5s * 6360 818 27 33.0000000 23.75000 28.0% 21.5 5s Explored 12612 nodes (253474 simplex iterations) in 9.11 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.300000000000e+01, best bound 3.300000000000e+01, gap 0.0%