Gurobi 5.0.1 (linux64) logging started Wed Apr 24 10:32:45 2013 Optimize a model with 1210 rows, 121110 columns and 242110 nonzeros Presolve time: 0.23s Presolved: 1210 rows, 121110 columns, 242110 nonzeros Variable types: 121000 continuous, 110 integer (110 binary) Root relaxation: objective 1.835747e+05, 5709 iterations, 0.28 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 183574.746 0 6 - 183574.746 - - 0s H 0 0 200548.00000 183574.746 8.46% - 1s 0 0 183879.207 0 5 200548.000 183879.207 8.31% - 1s H 0 0 200025.00000 183879.207 8.07% - 1s 0 0 184029.670 0 7 200025.000 184029.670 8.00% - 1s 0 0 184085.860 0 4 200025.000 184085.860 7.97% - 1s H 0 0 199985.00000 184085.860 7.95% - 2s 0 0 184088.182 0 4 199985.000 184088.182 7.95% - 2s 0 0 184091.820 0 4 199985.000 184091.820 7.95% - 2s H 0 0 193889.97424 184091.820 5.05% - 2s H 0 0 192705.00000 184091.820 4.47% - 2s 0 0 184092.303 0 3 192705.000 184092.303 4.47% - 2s H 0 0 192450.00000 184092.303 4.34% - 2s 0 0 184092.598 0 3 192450.000 184092.598 4.34% - 2s 0 0 184092.598 0 3 192450.000 184092.598 4.34% - 3s H 0 0 184620.00000 184092.598 0.29% - 3s 0 0 184092.598 0 6 184620.000 184092.598 0.29% - 4s 0 0 184092.598 0 5 184620.000 184092.598 0.29% - 4s 0 0 184092.598 0 7 184620.000 184092.598 0.29% - 4s 0 0 184092.598 0 4 184620.000 184092.598 0.29% - 4s 0 0 184092.598 0 4 184620.000 184092.598 0.29% - 5s 0 0 184092.598 0 5 184620.000 184092.598 0.29% - 5s 0 0 184092.598 0 4 184620.000 184092.598 0.29% - 5s 0 0 184092.598 0 4 184620.000 184092.598 0.29% - 5s 0 0 184092.598 0 3 184620.000 184092.598 0.29% - 5s 0 2 184120.494 0 3 184620.000 184120.494 0.27% - 6s * 11 8 9 184558.00000 184392.147 0.09% 78.7 7s * 12 7 8 184533.00000 184392.147 0.08% 72.5 7s Cutting planes: Implied bound: 113 Flow cover: 6 Explored 23 nodes (11961 simplex iterations) in 7.53 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.845330000000e+05, best bound 1.845330000000e+05, gap 0.0%