Gurobi 5.0.1 (linux64) logging started Wed Apr 24 05:10:03 2013 Optimize a model with 957 rows, 75777 columns and 151467 nonzeros Presolve time: 0.12s Presolved: 957 rows, 75777 columns, 151467 nonzeros Variable types: 75690 continuous, 87 integer (87 binary) Root relaxation: objective 1.061120e+05, 2949 iterations, 0.10 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 106111.974 0 8 - 106111.974 - - 0s H 0 0 114212.00000 106111.974 7.09% - 0s H 0 0 108914.00000 106111.974 2.57% - 0s 0 0 106521.111 0 5 108914.000 106521.111 2.20% - 0s 0 0 106545.194 0 6 108914.000 106545.194 2.17% - 0s 0 0 106548.838 0 5 108914.000 106548.838 2.17% - 1s 0 0 106549.385 0 5 108914.000 106549.385 2.17% - 1s 0 0 106549.385 0 5 108914.000 106549.385 2.17% - 1s H 0 0 107516.00000 106549.385 0.90% - 2s 0 2 106572.040 0 5 107516.000 106572.040 0.88% - 2s H 5 5 107403.52632 106679.765 0.67% 167 2s H 9 9 107402.00000 106679.765 0.67% 136 2s H 12 10 107351.00000 106679.765 0.63% 139 2s H 13 9 107268.00000 106679.765 0.55% 134 2s * 20 12 16 107256.00000 106679.765 0.54% 95.8 3s * 46 11 8 106997.00000 106883.138 0.11% 87.0 3s Cutting planes: Implied bound: 145 Flow cover: 6 Explored 55 nodes (7806 simplex iterations) in 4.10 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.069970000000e+05, best bound 1.069872278481e+05, gap 0.0091%