Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:42:07 2013 Optimize a model with 5700 rows, 30100 columns and 70050 nonzeros Presolve removed 150 rows and 100 columns Presolve time: 0.27s Presolved: 5550 rows, 30000 columns, 64900 nonzeros Variable types: 27550 continuous, 2450 integer (2450 binary) Root relaxation: objective 2.252562e+05, 8325 iterations, 0.39 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 225256.157 0 1 - 225256.157 - - 0s 0 0 225438.070 0 2 - 225438.070 - - 0s 0 0 225445.527 0 3 - 225445.527 - - 1s 0 0 225447.591 0 2 - 225447.591 - - 1s 0 0 225447.591 0 2 - 225447.591 - - 1s 0 0 225448.720 0 2 - 225448.720 - - 1s 0 0 225448.720 0 2 - 225448.720 - - 1s 0 0 225449.633 0 2 - 225449.633 - - 1s 0 0 225449.633 0 2 - 225449.633 - - 1s 0 0 225450.734 0 2 - 225450.734 - - 1s 0 0 225450.734 0 2 - 225450.734 - - 1s 0 0 225450.734 0 2 - 225450.734 - - 1s 0 0 225450.734 0 2 - 225450.734 - - 2s H 0 0 229101.32388 225450.734 1.59% - 2s 0 2 225451.636 0 2 229101.324 225451.636 1.59% - 3s 29 31 227061.334 26 3 229101.324 225721.304 1.48% 68.0 5s H 108 76 228945.79002 225721.304 1.41% 60.5 9s 126 96 226942.143 17 2 228945.790 225757.992 1.39% 61.6 10s H 189 121 228210.11251 225781.146 1.06% 67.0 11s H 213 41 226339.86998 225781.146 0.25% 62.9 12s H 381 158 226338.28079 225896.029 0.20% 42.8 14s H 421 167 226297.47494 225896.029 0.18% 39.4 15s H 422 160 226289.97857 225896.029 0.17% 39.5 15s H 428 137 226262.69029 225896.029 0.16% 39.3 15s H 430 3 225938.37568 225896.029 0.02% 39.1 15s * 435 3 9 225915.15199 225898.300 0.01% 38.9 15s Cutting planes: Gomory: 1 Flow cover: 22 Explored 436 nodes (25856 simplex iterations) in 15.23 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.259151519913e+05, best bound 2.258982997293e+05, gap 0.0075%