Build (method = -2) #dp: 4256 Step-3' Graph: 81 vertices and 1502 arcs (0.01s) Step-4' Graph: 81 vertices and 1502 arcs (0.01s) #V4/#V3 = 1.00 #A4/#A3 = 1.00 Ready! (0.01s) Optimize a model with 162 rows, 1503 columns and 4356 nonzeros Presolve removed 42 rows and 43 columns Presolve time: 0.02s Presolved: 120 rows, 1460 columns, 4214 nonzeros Variable types: 0 continuous, 1460 integer (79 binary) Found heuristic solution: objective 469.0000000 Found heuristic solution: objective 409.0000000 Found heuristic solution: objective 371.0000000 Optimize a model with 120 rows, 1460 columns and 4214 nonzeros Presolved: 120 rows, 1460 columns, 4214 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 2.392e+03 Factor NZ : 4.307e+03 Factor Ops : 2.065e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 5.43408955e+03 -2.24792776e+04 2.66e+04 6.05e-02 6.12e+01 0s 1 1.77645613e+03 -7.23959702e+03 4.61e+03 9.99e-16 1.15e+01 0s 2 6.16085521e+02 -2.51525618e+03 4.36e+02 3.55e-15 1.70e+00 0s 3 4.59454290e+02 -8.07775850e+02 3.36e+01 2.89e-15 4.62e-01 0s 4 3.46655155e+02 -1.32113634e+02 3.41e+00 1.01e-15 1.64e-01 0s 5 3.11458440e+02 8.50761797e+01 1.68e+00 1.22e-15 7.74e-02 0s 6 2.85232655e+02 1.40023146e+02 5.59e-01 1.10e-15 4.93e-02 0s 7 2.67988096e+02 1.91374819e+02 1.41e-01 9.71e-16 2.60e-02 0s 8 2.62752493e+02 2.59216216e+02 6.28e-03 1.13e-15 1.20e-03 0s 9 2.62012044e+02 2.61936975e+02 1.09e-04 1.10e-15 2.54e-05 0s 10 2.62000012e+02 2.61999937e+02 2.08e-12 1.20e-15 2.54e-08 0s 11 2.62000000e+02 2.62000000e+02 1.47e-12 1.34e-15 2.54e-11 0s Barrier solved model in 11 iterations and 0.01 seconds Optimal objective 2.62000000e+02 Root relaxation: objective 2.620000e+02, 525 iterations, 0.02 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 262.0000000 262.00000 0.0% - 0s Explored 0 nodes (525 simplex iterations) in 0.06 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 2.620000000000e+02, best bound 2.620000000000e+02, gap 0.0% Preprocessing time: 0.03 seconds Gurobi run time: 0.06 seconds Total run time: 0.09 seconds Objective: 262 Solution: 4 x [81] 6 x [1, 80] 4 x [79] 6 x [4, 78] 1 x [1, 78] 5 x [5, 77] 11 x [76] 2 x [7, 75] 9 x [6, 75] 1 x [7, 74] 8 x [3, 74] 6 x [9, 73] 5 x [8, 72] 1 x [7, 72] 10 x [10, 71] 2 x [11, 70] 1 x [5, 70] 4 x [13, 69] 7 x [12, 68] 4 x [11, 68] 1 x [15, 67] 2 x [14, 67] 7 x [16, 66] 2 x [16, 65] 2 x [13, 65] 3 x [18, 64] 1 x [17, 64] 1 x [1, 64] 2 x [19, 63] 7 x [15, 63] 5 x [20, 62] 2 x [19, 62] 2 x [21, 61] 3 x [2, 61] 3 x [22, 60] 4 x [21, 60] 3 x [22, 59] 6 x [24, 58] 3 x [25, 57] 7 x [24, 57] 4 x [26, 56] 2 x [25, 56] 1 x [22, 56] 5 x [27, 55] 2 x [28, 54] 1 x [27, 54] 2 x [26, 54] 11 x [29, 53] 1 x [28, 53] 5 x [30, 52] 4 x [31, 51] 3 x [30, 51] 3 x [28, 51] 2 x [50] 7 x [23, 49] 2 x [34, 48] 3 x [18, 48] 3 x [47] 1 x [34, 47] 3 x [36, 46] 3 x [35, 46] 4 x [34, 46] 1 x [28, 46] 2 x [37, 45] 1 x [33, 45] 2 x [32, 45] 3 x [38, 44] 5 x [39, 43] 4 x [40, 42] 1 x [39, 42] 5 x [38, 41] 3 x [39, 40]