Gurobi 5.0.1 (linux64) logging started Fri Jan 18 01:47:16 2013 Optimize a model with 3200 rows, 32600 columns and 70050 nonzeros Presolve removed 100 rows and 150 columns Presolve time: 0.47s Presolved: 3100 rows, 32450 columns, 64900 nonzeros Variable types: 30000 continuous, 2450 integer (2450 binary) Root relaxation: objective 2.208160e+05, 3270 iterations, 0.18 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 220815.985 0 4 - 220815.985 - - 0s 0 0 220849.135 0 3 - 220849.135 - - 0s 0 0 220849.340 0 4 - 220849.340 - - 1s 0 0 220921.949 0 3 - 220921.949 - - 1s 0 0 220936.287 0 4 - 220936.287 - - 1s 0 0 220963.934 0 4 - 220963.934 - - 1s 0 0 220968.159 0 3 - 220968.159 - - 1s 0 0 220968.159 0 3 - 220968.159 - - 1s 0 0 220969.826 0 3 - 220969.826 - - 1s 0 0 220970.021 0 3 - 220970.021 - - 1s 0 0 220970.812 0 3 - 220970.812 - - 1s 0 0 220971.052 0 3 - 220971.052 - - 1s 0 0 220972.535 0 3 - 220972.535 - - 2s 0 0 220972.535 0 3 - 220972.535 - - 2s 0 0 220972.535 0 3 - 220972.535 - - 2s 0 0 220972.741 0 3 - 220972.741 - - 2s 0 0 220972.741 0 3 - 220972.741 - - 2s 0 2 220984.386 0 3 - 220984.386 - - 3s 29 31 221554.787 28 2 - 221040.064 - 32.5 5s 192 194 222881.243 188 2 - 221040.064 - 19.7 10s 368 370 223589.352 363 2 - 221040.064 - 15.8 15s 596 598 223916.811 591 1 - 221040.064 - 11.2 20s * 616 235 611 223965.79339 221040.064 1.31% 10.9 20s H 618 17 221538.63928 221040.064 0.23% 10.9 20s 719 59 221084.849 14 3 221538.639 221084.849 0.20% 16.7 25s H 880 49 221504.11496 221206.001 0.13% 15.6 28s H 934 67 221497.28084 221233.841 0.12% 15.1 28s 1093 146 221414.622 36 1 221497.281 221313.855 0.08% 14.1 30s H 1096 129 221487.56994 221313.855 0.08% 14.0 30s H 1177 121 221477.29531 221347.750 0.06% 13.6 30s * 1372 165 37 221476.69350 221378.864 0.04% 12.7 32s 1770 135 221444.760 29 1 221476.693 221444.760 0.01% 11.9 35s Cutting planes: Gomory: 2 Flow cover: 13 Explored 1858 nodes (25654 simplex iterations) in 35.74 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 2.214766934992e+05, best bound 2.214547500360e+05, gap 0.0099%