Gurobi 5.0.1 (linux64) logging started Wed Apr 24 09:59:24 2013 Optimize a model with 1100 rows, 100100 columns and 200100 nonzeros Presolve time: 0.20s Presolved: 1100 rows, 100100 columns, 200100 nonzeros Variable types: 100000 continuous, 100 integer (100 binary) Root relaxation: objective 1.390090e+05, 3975 iterations, 0.15 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 139008.996 0 11 - 139008.996 - - 0s H 0 0 154059.00000 139008.996 9.77% - 0s H 0 0 139521.00000 139008.996 0.37% - 0s 0 0 139170.667 0 9 139521.000 139170.667 0.25% - 1s 0 0 139170.667 0 11 139521.000 139170.667 0.25% - 1s 0 0 139171.131 0 8 139521.000 139171.131 0.25% - 1s 0 0 139190.790 0 7 139521.000 139190.790 0.24% - 1s 0 0 139200.466 0 7 139521.000 139200.466 0.23% - 2s 0 0 139212.888 0 7 139521.000 139212.888 0.22% - 2s 0 0 139214.741 0 5 139521.000 139214.741 0.22% - 2s 0 0 139214.949 0 5 139521.000 139214.949 0.22% - 2s 0 0 139215.050 0 5 139521.000 139215.050 0.22% - 2s 0 0 139216.123 0 4 139521.000 139216.123 0.22% - 2s 0 0 139216.123 0 4 139521.000 139216.123 0.22% - 2s 0 0 139291.506 0 6 139521.000 139291.506 0.16% - 2s 0 0 139294.780 0 4 139521.000 139294.780 0.16% - 3s 0 2 139294.824 0 4 139521.000 139294.824 0.16% - 3s * 24 4 4 139483.00000 139305.941 0.13% 45.9 4s Cutting planes: Implied bound: 140 Flow cover: 8 Explored 31 nodes (9560 simplex iterations) in 4.25 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.394830000000e+05, best bound 1.394830000000e+05, gap 0.0%