Gurobi 5.0.1 (linux64) logging started Wed Apr 24 07:18:49 2013 Optimize a model with 89394 rows, 88454 columns and 353534 nonzeros Presolve removed 5883 rows and 0 columns Presolve time: 0.63s Presolved: 83511 rows, 88454 columns, 341768 nonzeros Variable types: 88360 continuous, 94 integer (94 binary) Root relaxation: objective 1.134536e+05, 17546 iterations, 4.77 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 113453.642 0 5 - 113453.642 - - 5s H 0 0 119529.00000 113453.642 5.08% - 6s 0 0 113454.254 0 6 119529.000 113454.254 5.08% - 6s 0 0 113454.254 0 6 119529.000 113454.254 5.08% - 7s 0 0 113454.277 0 6 119529.000 113454.277 5.08% - 8s H 0 0 118085.92495 113454.277 3.92% - 11s H 0 0 117841.36638 113454.277 3.72% - 11s H 0 0 115870.33425 113454.277 2.09% - 11s 0 2 113454.649 0 6 115870.334 113454.649 2.08% - 12s H 5 5 115642.68966 113521.701 1.83% 161 13s H 7 7 114073.52632 113531.158 0.48% 148 14s 11 10 113554.200 11 1 114073.526 113533.125 0.47% 150 15s H 14 9 113999.80000 113533.125 0.41% 150 15s * 21 9 21 113868.00000 113533.125 0.29% 137 16s H 25 8 113784.00000 113604.538 0.16% 145 17s H 26 6 113765.00000 113604.538 0.14% 140 17s * 30 7 11 113757.00000 113604.538 0.13% 130 17s H 31 1 113657.38462 113604.538 0.05% 126 18s * 36 3 12 113631.00000 113612.821 0.02% 119 18s Cutting planes: Gomory: 1 Flow cover: 3 Explored 38 nodes (21852 simplex iterations) in 18.29 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.136310000000e+05, best bound 1.136210000000e+05, gap 0.0088%