Gurobi 5.0.1 (linux64) logging started Wed Apr 24 03:34:03 2013 Optimize a model with 63358 rows, 62568 columns and 249798 nonzeros Presolve removed 79 rows and 0 columns Presolve time: 0.29s Presolved: 63279 rows, 62568 columns, 249719 nonzeros Variable types: 62489 continuous, 79 integer (79 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 7760 6.8059020e+04 6.092448e+03 0.000000e+00 5s 8494 6.8158099e+04 0.000000e+00 0.000000e+00 7s Root relaxation: objective 6.815810e+04, 8494 iterations, 6.82 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 68158.0987 0 63 - 68158.0987 - - 7s H 0 0 109855.00000 68158.0987 38.0% - 10s 0 0 84534.3790 0 25 109855.000 84534.3790 23.0% - 24s H 0 0 107845.00000 84534.3790 21.6% - 27s 0 0 92327.4367 0 6 107845.000 92327.4367 14.4% - 34s H 0 0 103972.90824 92327.4367 11.2% - 34s H 0 0 101779.00000 92327.4367 9.29% - 34s 0 0 93043.5931 0 4 101779.000 93043.5931 8.58% - 35s H 0 0 99038.611758 93043.5931 6.05% - 35s H 0 0 98501.000000 93043.5931 5.54% - 35s H 0 0 97242.882345 93043.5931 4.32% - 37s H 0 0 94475.988304 93043.5931 1.52% - 37s H 0 0 93902.000000 93043.5931 0.91% - 37s 0 2 93048.0462 0 4 93902.0000 93048.0462 0.91% - 39s 2 4 93305.8677 1 3 93902.0000 93220.1532 0.73% 594 40s * 10 8 6 93639.000000 93311.0510 0.35% 428 42s H 17 6 93629.285714 93311.2301 0.34% 302 42s * 19 6 7 93617.000000 93311.2301 0.33% 271 42s H 21 2 93599.251553 93311.2301 0.31% 245 42s H 22 3 93598.142857 93380.1928 0.23% 246 42s H 23 4 93570.714286 93381.7143 0.20% 236 43s H 25 6 93501.916667 93383.1250 0.13% 220 43s * 37 8 17 93454.000000 93383.1250 0.08% 176 44s * 48 0 7 93405.000000 93405.0000 0.0% 148 44s Cutting planes: Implied bound: 79 Explored 49 nodes (28140 simplex iterations) in 44.67 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 9.340500000000e+04, best bound 9.340500000000e+04, gap 0.0%