Build (method = -2) #dp: 5237 Step-3' Graph: 696 vertices and 2081 arcs (0.04s) Step-4' Graph: 357 vertices and 1403 arcs (0.05s) #V4/#V3 = 0.51 #A4/#A3 = 0.67 Ready! (0.05s) Optimize a model with 417 rows, 1404 columns and 3502 nonzeros Presolve removed 44 rows and 53 columns Presolve time: 0.01s Presolved: 373 rows, 1351 columns, 3386 nonzeros Variable types: 0 continuous, 1351 integer (0 binary) Found heuristic solution: objective 2048.0000000 Optimize a model with 373 rows, 1351 columns and 3386 nonzeros Presolved: 373 rows, 1351 columns, 3386 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.508e+03 Factor NZ : 1.144e+04 Factor Ops : 5.043e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.20257630e+04 -1.90455316e+05 3.12e+05 2.22e-16 6.49e+02 0s 1 6.30169135e+03 -1.04042729e+05 3.89e+04 2.00e-15 1.04e+02 0s 2 3.21914529e+03 -3.31359036e+04 6.24e+03 3.11e-15 2.15e+01 0s 3 2.41742140e+03 -4.46968759e+03 6.97e+02 7.88e-15 3.15e+00 0s 4 2.20280682e+03 -1.69994363e+03 1.50e+02 5.22e-15 1.52e+00 0s 5 2.06651047e+03 -9.09907303e+02 8.63e+01 4.11e-15 1.13e+00 0s 6 1.98026468e+03 -2.10628981e+02 5.69e+01 3.00e-15 8.27e-01 0s 7 1.85376549e+03 5.93564596e+02 3.19e+01 1.33e-15 4.72e-01 0s 8 1.76624097e+03 1.02530486e+03 2.02e+01 1.26e-15 2.76e-01 0s 9 1.61437426e+03 1.28399185e+03 5.31e+00 1.16e-15 1.22e-01 0s 10 1.55804067e+03 1.35820955e+03 2.71e+00 1.26e-15 7.37e-02 0s 11 1.51355403e+03 1.41841063e+03 8.80e-01 1.24e-15 3.50e-02 0s 12 1.49891548e+03 1.45678127e+03 3.52e-01 1.15e-15 1.55e-02 0s 13 1.49132805e+03 1.47827785e+03 1.05e-01 1.08e-15 4.80e-03 0s 14 1.48926558e+03 1.48575535e+03 3.36e-02 1.21e-15 1.29e-03 0s 15 1.48822567e+03 1.48808609e+03 2.15e-03 1.31e-15 5.15e-05 0s 16 1.48818451e+03 1.48813107e+03 6.59e-04 1.36e-15 1.97e-05 0s 17 1.48816452e+03 1.48813229e+03 2.50e-04 1.23e-15 1.18e-05 0s 18 1.48814377e+03 1.48814047e+03 5.37e-06 1.22e-15 1.21e-06 0s 19 1.48814286e+03 1.48814286e+03 1.23e-08 1.30e-15 1.95e-09 0s 20 1.48814286e+03 1.48814286e+03 2.19e-10 1.11e-15 1.95e-12 0s Barrier solved model in 20 iterations and 0.03 seconds Optimal objective 1.48814286e+03 Root relaxation: objective 1.488143e+03, 342 iterations, 0.04 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 1488.14286 0 31 2048.00000 1488.14286 27.3% - 0s H 0 0 1492.0000000 1488.14286 0.26% - 0s H 0 0 1489.0000000 1488.14286 0.06% - 0s Explored 0 nodes (598 simplex iterations) in 0.09 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.489000000000e+03, best bound 1.489000000000e+03, gap 0.0% Preprocessing time: 0.06 seconds Gurobi run time: 0.09 seconds Total run time: 0.15 seconds Objective: 1489 Solution: 74 x [25] 95 x [45] 100 x [29] 15 x [58] 11 x [11, 31] 73 x [52] 32 x [26, 50] 45 x [48] 21 x [47, 48] 61 x [24, 33] 8 x [11, 17, 33] 70 x [37, 39] 1 x [41] 11 x [41, 55] 16 x [5, 41] 40 x [28, 35] 12 x [11, 35, 55] 8 x [18, 60] 10 x [4, 11, 18] 36 x [4, 13] 35 x [13, 55] 2 x [6, 17, 27] 13 x [16, 19] 27 x [19, 30] 37 x [21, 49] 24 x [8, 44] 34 x [10, 56] 22 x [34, 56] 13 x [49, 56, 57] 14 x [12, 22] 26 x [8, 12] 59 x [12, 34] 5 x [3, 5, 11, 46] 8 x [3, 11, 27, 46] 30 x [27, 42, 46] 6 x [34, 40, 47] 21 x [17, 19, 40] 33 x [4, 40, 55] 73 x [32, 59] 1 x [34, 43] 11 x [11, 43, 49] 21 x [43, 59] 21 x [14, 17, 43] 22 x [9, 53] 27 x [51, 53] 3 x [2, 23] 17 x [23, 36] 17 x [38, 54] 20 x [1, 38] 1 x [1, 7, 57] 2 x [1, 7, 50] 1 x [1, 7, 11] 15 x [1, 20] 8 x [1, 54] 5 x [1, 11, 15, 17] 8 x [1, 9, 11, 17] 51 x [9, 23, 27] 1 x [9, 37, 51] 12 x [9, 46, 51] 3 x [5, 9, 11, 51] 1 x [11, 50, 59]