Gurobi 5.0.1 (linux64) logging started Tue Dec 4 10:30:48 2012 Optimize a model with 360001 rows, 360000 columns and 1795203 nonzeros Presolve removed 0 rows and 1 columns (presolve time = 6s) ... Presolve removed 0 rows and 1 columns (presolve time = 10s) ... Presolve removed 0 rows and 1 columns Presolve time: 14.27s Presolved: 360001 rows, 359999 columns, 1794604 nonzeros Variable types: 599 continuous, 359400 integer (359400 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 4197 1.0342838e+03 2.657261e-01 0.000000e+00 5s 4457 1.0343506e+03 0.000000e+00 0.000000e+00 7s Root relaxation: objective 1.034351e+03, 4457 iterations, 6.74 seconds Total elapsed time = 30.10s Total elapsed time = 40.05s Total elapsed time = 45.07s Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1034.35058 0 610 - 1034.35058 - - 47s 0 0 31493.4274 0 1182 - 31493.4274 - - 74s 0 0 31493.4274 0 1123 - 31493.4274 - - 97s 0 0 31493.4274 0 1094 - 31493.4274 - - 129s 0 0 31493.4274 0 1092 - 31493.4274 - - 162s 0 0 31493.4274 0 1090 - 31493.4274 - - 196s 0 0 31493.4274 0 1102 - 31493.4274 - - 230s 0 0 31493.4274 0 612 - 31493.4274 - - 279s 0 0 31493.4274 0 626 - 31493.4274 - - 314s 0 0 31493.4274 0 594 - 31493.4274 - - 344s 0 0 31493.4274 0 611 - 31493.4274 - - 374s 0 0 31493.4274 0 611 - 31493.4274 - - 406s 0 0 31493.4274 0 609 - 31493.4274 - - 442s 0 0 31493.4274 0 649 - 31493.4274 - - 477s 0 0 31493.4274 0 649 - 31493.4274 - - 706s Cutting planes: Learned: 53 Gomory: 90 MIR: 2 Explored 0 nodes (71085 simplex iterations) in 3600.09 seconds Thread count was 1 (of 16 available processors) Time limit reached Best objective -, best bound 3.149400000000e+04, gap -