Gurobi 5.0.1 (linux64) logging started Wed Apr 24 10:32:55 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 1.581020e+05, 4623 iterations, 0.23 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 158101.965 0 8 - 158101.965 - - 0s H 0 0 172007.00000 158101.965 8.08% - 0s 0 0 158353.817 0 6 172007.000 158353.817 7.94% - 1s H 0 0 167555.52552 158353.817 5.49% - 1s H 0 0 166826.00000 158353.817 5.08% - 1s 0 0 158412.877 0 6 166826.000 158412.877 5.04% - 1s 0 0 158430.519 0 6 166826.000 158430.519 5.03% - 1s 0 0 158446.359 0 5 166826.000 158446.359 5.02% - 2s H 0 0 166603.77238 158446.359 4.90% - 2s H 0 0 165580.00000 158446.359 4.31% - 2s 0 0 158447.461 0 6 165580.000 158447.461 4.31% - 2s H 0 0 165564.00000 158447.461 4.30% - 2s 0 0 158449.260 0 5 165564.000 158449.260 4.30% - 2s H 0 0 165521.00000 158449.260 4.27% - 2s 0 0 158450.133 0 5 165521.000 158450.133 4.27% - 2s 0 0 158450.133 0 5 165521.000 158450.133 4.27% - 2s 0 2 158461.268 0 5 165521.000 158461.268 4.27% - 3s H 3 3 164354.90116 158572.348 3.52% 45.3 4s H 4 4 162269.70588 158667.840 2.22% 76.0 4s H 6 6 160630.66667 158739.707 1.18% 152 4s H 7 7 159581.71429 158739.707 0.53% 147 4s 8 10 158977.130 6 4 159581.714 158739.707 0.53% 146 5s H 11 11 159533.00000 158739.707 0.50% 129 5s H 14 11 159487.00000 158739.707 0.47% 115 5s H 15 12 159455.00000 158739.707 0.45% 114 5s H 19 12 159441.00000 158739.707 0.44% 103 5s * 20 12 17 159261.00000 158739.707 0.33% 103 5s H 33 18 159147.00000 158815.558 0.21% 88.4 6s * 34 11 14 158991.00000 158815.558 0.11% 85.9 6s Cutting planes: Implied bound: 124 Flow cover: 10 Explored 60 nodes (9637 simplex iterations) in 7.51 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.589910000000e+05, best bound 1.589799130435e+05, gap 0.0070%