Build (method = -2) #dp: 3633 Step-3' Graph: 53 vertices and 607 arcs (0.02s) Step-4' Graph: 37 vertices and 575 arcs (0.02s) #V4/#V3 = 0.70 #A4/#A3 = 0.95 Ready! (0.02s) Optimize a model with 137 rows, 576 columns and 1660 nonzeros Presolve removed 51 rows and 52 columns Presolve time: 0.00s Presolved: 86 rows, 524 columns, 1507 nonzeros Variable types: 0 continuous, 524 integer (7 binary) Found heuristic solution: objective 1791.0000000 Found heuristic solution: objective 1368.0000000 Optimize a model with 86 rows, 524 columns and 1507 nonzeros Presolved: 86 rows, 524 columns, 1507 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 9.370e+02 Factor NZ : 1.840e+03 Factor Ops : 4.888e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 3.28264035e+04 -4.30786174e+04 3.24e+04 1.30e-01 3.99e+02 0s 1 8.28782173e+03 -1.21445461e+04 4.84e+03 7.77e-16 6.33e+01 0s 2 2.11625996e+03 -4.06113445e+03 4.23e+02 2.11e-15 8.86e+00 0s 3 1.28174423e+03 -7.22311176e+02 3.17e+01 2.89e-15 1.95e+00 0s 4 1.02437189e+03 1.46275986e+02 6.37e+00 1.22e-15 8.12e-01 0s 5 9.49972515e+02 5.23207166e+02 2.88e+00 8.88e-16 3.92e-01 0s 6 8.89034585e+02 7.44653014e+02 7.99e-01 5.66e-16 1.32e-01 0s 7 8.65218218e+02 8.37468656e+02 2.75e-01 5.96e-16 2.54e-02 0s 8 8.59592381e+02 8.59068650e+02 1.03e-03 4.97e-16 4.78e-04 0s 9 8.59500018e+02 8.59499992e+02 1.04e-07 6.84e-16 2.35e-08 0s 10 8.59500000e+02 8.59500000e+02 3.42e-12 6.75e-16 2.35e-11 0s Barrier solved model in 10 iterations and 0.00 seconds Optimal objective 8.59500000e+02 Root relaxation: objective 8.595000e+02, 343 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 859.50000 0 2 1368.00000 859.50000 37.2% - 0s H 0 0 860.0000000 859.50000 0.06% - 0s Explored 0 nodes (418 simplex iterations) in 0.02 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 8.600000000000e+02, best bound 8.600000000000e+02, gap 0.0% Preprocessing time: 0.03 seconds Gurobi run time: 0.02 seconds Total run time: 0.05 seconds Objective: 860 Solution: 3 x [99] 3 x [37, 37, 99] 3 x [2, 99] 17 x [58, 58, 68] 12 x [56] 1 x [56, 58] 15 x [71, 97] 8 x [39] 1 x [33, 39] 14 x [9, 87] 10 x [21, 60] 2 x [9, 60] 5 x [44] 1 x [9, 44] 21 x [17, 22] 2 x [15, 17] 19 x [70, 80] 3 x [70, 72] 1 x [30, 72] 2 x [30, 59] 26 x [29, 86] 8 x [5, 100] 10 x [5, 30] 18 x [28, 48] 25 x [15, 93] 11 x [54, 74] 3 x [74, 78] 5 x [35, 50] 1 x [45, 50] 11 x [46, 81] 1 x [45, 46] 27 x [14] 10 x [57, 77] 2 x [28, 52] 27 x [41, 78] 13 x [23, 94] 7 x [23, 86] 1 x [23, 45] 15 x [38, 92] 4 x [77, 91, 92] 4 x [45, 84, 94] 25 x [83, 84] 3 x [61, 75, 94] 13 x [51, 75] 3 x [45, 66, 94] 18 x [11, 66] 29 x [7, 32] 3 x [32, 45, 82] 1 x [13, 45, 82] 2 x [10, 45, 82] 29 x [10, 40, 91] 14 x [12, 36] 7 x [8, 36] 7 x [16, 89] 18 x [4, 85] 1 x [2, 16, 85] 6 x [2, 85] 1 x [42] 22 x [42, 65] 10 x [2, 42, 62] 5 x [25, 88] 5 x [18, 30, 88] 4 x [55] 30 x [1, 18, 55] 1 x [45, 55] 19 x [43, 95] 6 x [96] 10 x [2, 4, 96] 24 x [53, 79] 2 x [53, 77] 1 x [90] 6 x [47, 64] 16 x [19, 47] 2 x [11, 22, 31] 10 x [67, 73, 76] 1 x [62, 67] 2 x [45, 67] 1 x [63] 14 x [63, 95] 1 x [12, 63] 22 x [26, 73] 18 x [24, 62] 4 x [11, 22, 24] 15 x [3, 20] 6 x [12, 20] 1 x [6, 45, 64] 10 x [6, 11] 4 x [6, 45] 8 x [69, 98] 6 x [49, 98] 20 x [34, 69] 1 x [27, 69] 1 x [27]