Build (method = -2) #dp: 6372 Step-3' Graph: 88 vertices and 778 arcs (0.03s) Step-4' Graph: 52 vertices and 706 arcs (0.03s) #V4/#V3 = 0.59 #A4/#A3 = 0.91 Ready! (0.03s) Optimize a model with 132 rows, 707 columns and 2023 nonzeros Presolve removed 19 rows and 20 columns Presolve time: 0.01s Presolved: 113 rows, 687 columns, 1966 nonzeros Variable types: 0 continuous, 687 integer (9 binary) Found heuristic solution: objective 2891.0000000 Found heuristic solution: objective 2112.0000000 Optimize a model with 113 rows, 687 columns and 1966 nonzeros Presolved: 113 rows, 687 columns, 1966 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.219e+03 Factor NZ : 2.807e+03 Factor Ops : 8.281e+04 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 9.35832328e+04 -1.33228290e+05 6.66e+04 7.51e-02 9.25e+02 0s 1 2.07829355e+04 -2.85356255e+04 8.59e+03 7.77e-16 1.24e+02 0s 2 4.64639479e+03 -9.11973553e+03 9.35e+02 3.02e-14 1.81e+01 0s 3 2.47720949e+03 -3.49719173e+03 9.12e+01 5.11e-15 4.72e+00 0s 4 1.77143609e+03 -9.51222617e+02 9.52e+00 2.33e-15 1.93e+00 0s 5 1.44172839e+03 2.31281064e+02 3.99e+00 9.99e-16 8.51e-01 0s 6 1.31778039e+03 7.94207317e+02 1.75e+00 5.55e-16 3.66e-01 0s 7 1.25148363e+03 1.02421855e+03 7.10e-01 4.44e-16 1.59e-01 0s 8 1.20823975e+03 1.13676713e+03 8.38e-02 3.33e-16 4.98e-02 0s 9 1.19523987e+03 1.15603075e+03 2.42e-02 2.22e-16 2.73e-02 0s 10 1.18986641e+03 1.18540209e+03 2.41e-03 2.22e-16 3.11e-03 0s 11 1.18903415e+03 1.18893847e+03 4.19e-12 4.44e-16 6.66e-05 0s 12 1.18900003e+03 1.18899994e+03 2.09e-11 2.22e-16 6.66e-08 0s 13 1.18900000e+03 1.18900000e+03 2.31e-12 3.33e-16 6.73e-14 0s Barrier solved model in 13 iterations and 0.01 seconds Optimal objective 1.18900000e+03 Root relaxation: objective 1.189000e+03, 250 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 1189.0000000 1189.00000 0.0% - 0s Explored 0 nodes (250 simplex iterations) in 0.02 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.189000000000e+03, best bound 1.189000000000e+03, gap 0.0% Preprocessing time: 0.04 seconds Gurobi run time: 0.02 seconds Total run time: 0.07 seconds Objective: 1189 Solution: 26 x [13] 4 x [9, 13] 17 x [13, 47] 16 x [13, 57] 3 x [13, 22, 22] 23 x [10, 10, 13] 23 x [72, 80] 17 x [57, 80] 4 x [52, 80] 53 x [7, 72, 75] 6 x [45] 20 x [1, 45] 4 x [45, 57, 72] 6 x [45, 51, 51] 10 x [39] 7 x [34, 39] 18 x [14, 39] 3 x [14, 39, 57] 1 x [36, 39] 21 x [36, 36, 39] 10 x [21, 66] 33 x [21, 66, 75] 15 x [34, 66] 13 x [43, 56] 1 x [12, 56] 31 x [2, 12] 15 x [27, 43] 53 x [44, 64] 2 x [31, 44] 23 x [15, 42] 6 x [4, 35] 22 x [35, 69] 14 x [5, 35] 8 x [16, 35, 52] 4 x [29, 52, 62] 22 x [29, 50] 42 x [29, 37] 26 x [28, 29] 6 x [55, 58] 12 x [55, 71] 46 x [24, 55] 5 x [3, 43, 55] 42 x [8, 74] 20 x [8, 53] 35 x [6, 26] 11 x [6, 46, 67] 1 x [6, 33, 65] 5 x [6, 18, 64] 3 x [6, 18, 60] 9 x [6, 11, 33] 19 x [3, 6, 42] 26 x [46, 49, 70] 27 x [33, 69, 70] 19 x [3, 63, 70] 25 x [3, 19, 70] 4 x [41, 54] 10 x [3, 54, 61] 2 x [41, 41] 6 x [3, 20, 71] 5 x [17, 46, 74] 30 x [17, 48, 77] 7 x [3, 23, 79] 32 x [23, 42, 71] 38 x [30, 40, 64] 2 x [32, 42, 76] 11 x [11, 58, 76] 14 x [62, 62, 76] 6 x [40, 42, 73] 3 x [16, 61, 73] 1 x [26, 32, 60] 13 x [11, 25, 26] 2 x [16, 26, 61] 9 x [26, 68, 78] 17 x [5, 26, 68] 19 x [59, 59, 60] 7 x [24, 53, 71] 17 x [24, 38, 71] 1 x [24, 24, 71]