Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:46:23 2013 Optimize a model with 3200 rows, 32600 columns and 70050 nonzeros Presolve removed 100 rows and 150 columns Presolve time: 0.28s Presolved: 3100 rows, 32450 columns, 64900 nonzeros Variable types: 30000 continuous, 2450 integer (2450 binary) Root relaxation: objective 1.626233e+05, 3335 iterations, 0.11 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 162623.326 0 5 - 162623.326 - - 0s 0 0 162661.285 0 5 - 162661.285 - - 0s 0 0 162670.467 0 5 - 162670.467 - - 0s 0 0 162671.790 0 5 - 162671.790 - - 0s 0 0 162672.111 0 6 - 162672.111 - - 0s 0 0 162673.291 0 6 - 162673.291 - - 0s 0 0 162673.291 0 6 - 162673.291 - - 0s 0 0 162673.762 0 6 - 162673.762 - - 1s 0 0 162673.806 0 6 - 162673.806 - - 1s 0 0 162675.480 0 6 - 162675.480 - - 1s 0 0 162675.493 0 6 - 162675.493 - - 1s 0 0 162675.528 0 6 - 162675.528 - - 1s 0 0 162675.528 0 6 - 162675.528 - - 1s 0 0 162675.528 0 6 - 162675.528 - - 1s H 0 0 164035.83697 162675.528 0.83% - 1s 0 2 162678.044 0 6 164035.837 162678.044 0.83% - 1s * 107 45 103 162941.76847 162786.098 0.10% 7.4 3s 217 57 162872.615 89 1 162941.768 162855.308 0.05% 9.9 5s 605 76 162941.628 477 1 162941.768 162855.308 0.05% 4.8 10s H 700 116 162939.67843 162856.544 0.05% 4.8 11s 732 125 162856.544 28 2 162939.678 162856.544 0.05% 11.9 15s 1014 98 162908.661 173 2 162939.678 162858.333 0.05% 9.8 20s * 1072 77 228 162934.21299 162858.333 0.05% 9.4 21s * 1252 75 34 162918.06266 162864.317 0.03% 8.5 23s 1389 96 162885.911 33 1 162918.063 162867.369 0.03% 8.0 25s Cutting planes: Gomory: 6 Flow cover: 12 Explored 1980 nodes (16657 simplex iterations) in 29.26 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.629180626645e+05, best bound 1.629020630794e+05, gap 0.0098%