Build (method = -2) #dp: 3528 Step-3' Graph: 79 vertices and 1354 arcs (0.01s) Step-4' Graph: 75 vertices and 1346 arcs (0.01s) #V4/#V3 = 0.95 #A4/#A3 = 0.99 Ready! (0.01s) Optimize a model with 153 rows, 1347 columns and 3896 nonzeros Presolve removed 43 rows and 46 columns Presolve time: 0.03s Presolved: 110 rows, 1301 columns, 3709 nonzeros Variable types: 0 continuous, 1301 integer (427 binary) Found heuristic solution: objective 170.0000000 Found heuristic solution: objective 161.0000000 Found heuristic solution: objective 140.0000000 Optimize a model with 110 rows, 1301 columns and 3709 nonzeros Presolved: 110 rows, 1301 columns, 3709 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.039e+03 Factor NZ : 3.851e+03 Factor Ops : 1.733e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.70645369e+03 -1.15578355e+04 9.75e+03 1.21e-01 3.57e+01 0s 1 8.51193092e+02 -3.67471210e+03 1.59e+03 6.66e-16 6.37e+00 0s 2 2.84563949e+02 -1.20382855e+03 1.44e+02 6.66e-16 9.14e-01 0s 3 1.80380156e+02 -9.91797598e+01 1.14e+01 9.99e-16 1.22e-01 0s 4 1.46536428e+02 4.19163244e+01 2.09e+00 5.45e-16 4.18e-02 0s 5 1.29064744e+02 8.05080264e+01 9.57e-01 4.69e-16 1.91e-02 0s 6 1.20536825e+02 8.84187785e+01 4.73e-01 5.20e-16 1.25e-02 0s 7 1.14616274e+02 9.50872408e+01 2.35e-01 5.28e-16 7.58e-03 0s 8 1.11171631e+02 1.08700016e+02 7.26e-02 8.88e-16 9.90e-04 0s 9 1.10026887e+02 1.09930300e+02 1.69e-03 5.81e-16 3.80e-05 0s 10 1.10000030e+02 1.09999931e+02 6.61e-13 7.77e-16 3.79e-08 0s 11 1.10000000e+02 1.10000000e+02 2.10e-11 5.07e-16 3.79e-11 0s 12 1.10000000e+02 1.10000000e+02 4.76e-13 4.84e-16 3.79e-14 0s Barrier solved model in 12 iterations and 0.01 seconds Optimal objective 1.10000000e+02 Root relaxation: objective 1.100000e+02, 585 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 110.0000000 110.00000 0.0% - 0s Explored 0 nodes (585 simplex iterations) in 0.08 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.100000000000e+02, best bound 1.100000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.08 seconds Total run time: 0.10 seconds Objective: 110 Solution: 1 x [1, 78] 4 x [77] 1 x [2, 76] 3 x [75] 3 x [2, 74] 4 x [73] 5 x [72] 2 x [6, 71] 3 x [8, 70] 2 x [9, 69] 5 x [68] 1 x [10, 67] 3 x [12, 66] 1 x [13, 65] 3 x [10, 64] 3 x [15, 63] 2 x [11, 62] 1 x [15, 61] 1 x [12, 61] 2 x [17, 60] 1 x [5, 60] 1 x [18, 59] 1 x [11, 59] 4 x [20, 58] 1 x [21, 57] 1 x [22, 56] 1 x [1, 4, 56] 2 x [21, 55] 3 x [24, 54] 2 x [19, 53] 1 x [16, 53] 2 x [24, 52] 1 x [23, 52] 4 x [26, 51] 1 x [25, 51] 3 x [28, 50] 1 x [25, 50] 2 x [3, 7, 50] 1 x [49] 2 x [14, 48] 1 x [27, 47] 1 x [32, 46] 1 x [31, 46] 2 x [30, 46] 1 x [29, 46] 1 x [25, 46] 2 x [33, 45] 1 x [33, 44] 1 x [6, 8, 44] 3 x [35, 43] 1 x [34, 43] 3 x [36, 42] 1 x [41] 1 x [36, 41] 1 x [40] 2 x [38, 40] 1 x [37, 40] 1 x [33, 39]