Gurobi 5.0.1 (linux64) logging started Wed Apr 24 06:56:45 2013 Optimize a model with 1023 rows, 86583 columns and 173073 nonzeros Presolve time: 0.15s Presolved: 1023 rows, 86583 columns, 173073 nonzeros Variable types: 86490 continuous, 93 integer (93 binary) Root relaxation: objective 1.075867e+05, 3343 iterations, 0.13 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 107586.681 0 8 - 107586.681 - - 0s H 0 0 119761.00000 107586.681 10.2% - 0s H 0 0 119300.00000 107586.681 9.82% - 0s 0 0 107791.015 0 3 119300.000 107791.015 9.65% - 0s H 0 0 111826.76513 107791.015 3.61% - 0s H 0 0 111577.00000 107791.015 3.39% - 0s 0 0 107807.626 0 3 111577.000 107807.626 3.38% - 1s 0 0 107822.516 0 4 111577.000 107822.516 3.36% - 1s 0 0 107826.321 0 4 111577.000 107826.321 3.36% - 1s H 0 0 111476.00000 107826.321 3.27% - 1s 0 0 107827.046 0 3 111476.000 107827.046 3.27% - 1s H 0 0 111470.00000 107827.046 3.27% - 1s 0 0 107830.221 0 3 111470.000 107830.221 3.27% - 1s 0 0 107830.396 0 3 111470.000 107830.396 3.27% - 1s 0 0 107830.437 0 3 111470.000 107830.437 3.27% - 1s 0 2 107832.969 0 3 111470.000 107832.969 3.26% - 2s H 3 3 109801.00000 107872.888 1.76% 58.7 2s H 7 6 108493.00000 107888.667 0.56% 32.6 2s * 8 3 8 107894.00000 107894.000 0.0% 31.0 2s Cutting planes: Implied bound: 77 Flow cover: 6 Explored 9 nodes (4030 simplex iterations) in 2.70 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.078940000000e+05, best bound 1.078940000000e+05, gap 0.0%