Gurobi 5.0.1 (linux64) logging started Thu Jan 24 20:02:06 2013 Optimize a model with 5 rows, 500 columns and 2500 nonzeros Presolve time: 0.01s Presolved: 5 rows, 500 columns, 2500 nonzeros Variable types: 0 continuous, 500 integer (500 binary) Found heuristic solution: objective 290113.00000 Root relaxation: objective 3.065541e+05, 17 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 306554.129 0 5 290113.000 306554.129 5.67% - 0s H 0 0 306347.00000 306554.129 0.07% - 0s 0 0 306553.136 0 6 306347.000 306553.136 0.07% - 0s 0 0 306553.136 0 5 306347.000 306553.136 0.07% - 0s 0 0 306553.136 0 6 306347.000 306553.136 0.07% - 0s 0 0 306552.923 0 8 306347.000 306552.923 0.07% - 0s H 0 0 306374.00000 306552.923 0.06% - 0s 0 2 306552.880 0 8 306374.000 306552.880 0.06% - 0s H 572 478 306403.00000 306552.161 0.05% 1.8 0s H 914 629 306453.00000 306551.834 0.03% 2.7 0s H18237 11373 306476.00000 306543.934 0.02% 2.2 1s 86633 38482 306513.542 72 5 306476.000 306537.635 0.02% 2.2 5s 193893 96113 306521.699 62 5 306476.000 306530.560 0.02% 2.2 10s 301735 159841 306515.403 63 5 306476.000 306527.274 0.02% 2.2 15s 412075 220457 306504.400 77 5 306476.000 306525.006 0.02% 2.2 20s 521733 278243 306520.303 55 5 306476.000 306523.212 0.02% 2.2 25s 633261 333543 306497.648 80 5 306476.000 306521.683 0.01% 2.2 30s 744089 384690 306509.495 63 5 306476.000 306520.410 0.01% 2.2 35s 855591 433299 306513.460 66 5 306476.000 306519.296 0.01% 2.3 40s 967411 480144 306496.094 75 5 306476.000 306518.287 0.01% 2.3 45s 1079858 524927 306506.463 77 5 306476.000 306517.369 0.01% 2.3 50s 1192277 567706 306506.594 70 5 306476.000 306516.498 0.01% 2.3 55s 1305347 607579 306497.497 78 5 306476.000 306515.738 0.01% 2.3 60s 1419001 646329 306510.507 81 5 306476.000 306515.005 0.01% 2.3 65s 1531494 683664 cutoff 71 306476.000 306514.319 0.01% 2.3 70s H1534053 652115 306480.00000 306514.304 0.01% 2.3 70s 1642386 680063 306499.574 70 5 306480.000 306513.619 0.01% 2.3 75s 1755536 706519 cutoff 66 306480.000 306512.944 0.01% 2.3 80s 1870133 731684 306503.694 67 5 306480.000 306512.282 0.01% 2.3 85s 1983762 754474 306501.125 66 5 306480.000 306511.663 0.01% 2.3 90s 2097847 776571 306510.604 63 5 306480.000 306511.052 0.01% 2.3 95s Cutting planes: Gomory: 2 MIR: 6 Zero half: 1 Explored 2179668 nodes (4957674 simplex iterations) in 98.60 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 3.064800000000e+05, best bound 3.065100000000e+05, gap 0.0098%