Gurobi 5.0.1 (linux64) logging started Wed Apr 24 05:33:10 2013 Optimize a model with 78496 rows, 77616 columns and 309936 nonzeros Presolve removed 88 rows and 0 columns Presolve time: 0.37s Presolved: 78408 rows, 77616 columns, 309848 nonzeros Variable types: 77528 continuous, 88 integer (88 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 8201 7.5759575e+04 1.551142e+05 0.000000e+00 5s 9801 7.7090512e+04 2.362146e+04 0.000000e+00 10s 11561 7.7578977e+04 7.688698e+01 0.000000e+00 15s 11656 7.7580898e+04 0.000000e+00 0.000000e+00 16s Root relaxation: objective 7.758090e+04, 11656 iterations, 15.60 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 77580.8983 0 70 - 77580.8983 - - 16s H 0 0 138644.00000 77580.8983 44.0% - 26s 0 0 107754.521 0 21 138644.000 107754.521 22.3% - 47s H 0 0 125634.00000 107754.521 14.2% - 48s 0 0 113744.331 0 7 125634.000 113744.331 9.46% - 52s 0 0 114649.580 0 2 125634.000 114649.580 8.74% - 54s H 0 0 119317.27732 114649.580 3.91% - 54s H 0 0 118397.00000 114649.580 3.17% - 54s H 0 0 115266.00000 114649.580 0.53% - 54s 0 0 114768.281 0 3 115266.000 114768.281 0.43% - 54s 0 0 114792.912 0 3 115266.000 114792.912 0.41% - 55s 0 0 114792.912 0 62 115266.000 114792.912 0.41% - 68s 0 0 114792.912 0 12 115266.000 114792.912 0.41% - 81s 0 0 114792.912 0 3 115266.000 114792.912 0.41% - 85s 0 0 114792.912 0 3 115266.000 114792.912 0.41% - 86s 0 2 114801.624 0 3 115266.000 114801.624 0.40% - 89s 1 4 115060.388 1 2 115266.000 114801.624 0.40% 526 90s * 9 3 7 115163.00000 115033.838 0.11% 213 91s Cutting planes: Gomory: 2 Implied bound: 69 Explored 13 nodes (47488 simplex iterations) in 91.92 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 1.151630000000e+05, best bound 1.151630000000e+05, gap 0.0%