Build (method = -2) #dp: 3376 Step-3' Graph: 80 vertices and 1291 arcs (0.01s) Step-4' Graph: 75 vertices and 1281 arcs (0.01s) #V4/#V3 = 0.94 #A4/#A3 = 0.99 Ready! (0.01s) Optimize a model with 149 rows, 1282 columns and 3700 nonzeros Presolve removed 41 rows and 49 columns Presolve time: 0.03s Presolved: 108 rows, 1233 columns, 3531 nonzeros Variable types: 0 continuous, 1233 integer (337 binary) Found heuristic solution: objective 180.0000000 Found heuristic solution: objective 155.0000000 Optimize a model with 108 rows, 1233 columns and 3531 nonzeros Presolved: 108 rows, 1233 columns, 3531 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 1.966e+03 Factor NZ : 3.722e+03 Factor Ops : 1.657e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 2.44740844e+03 -9.45551239e+03 1.28e+04 1.02e-01 3.60e+01 0s 1 6.63997369e+02 -2.86601419e+03 1.28e+03 5.00e-16 4.37e+00 0s 2 2.54985952e+02 -8.29587606e+02 1.06e+02 3.22e-15 6.25e-01 0s 3 1.80279900e+02 -1.31147014e+02 1.23e+01 4.44e-16 1.39e-01 0s 4 1.50882717e+02 -2.66402258e+01 4.32e+00 4.44e-16 7.51e-02 0s 5 1.29525814e+02 4.74470894e+01 1.80e+00 3.33e-16 3.41e-02 0s 6 1.23314557e+02 6.90639473e+01 1.17e+00 2.78e-16 2.24e-02 0s 7 1.17430376e+02 7.64634208e+01 6.76e-01 2.22e-16 1.68e-02 0s 8 1.09792551e+02 9.12757512e+01 1.86e-01 2.44e-16 7.53e-03 0s 9 1.07490074e+02 1.04063916e+02 4.93e-02 2.22e-16 1.40e-03 0s 10 1.07008884e+02 1.06745238e+02 4.06e-04 3.04e-16 1.06e-04 0s 11 1.07000199e+02 1.06999374e+02 2.03e-13 3.62e-16 3.31e-07 0s 12 1.07000000e+02 1.06999999e+02 1.90e-13 3.58e-16 3.31e-10 0s 13 1.07000000e+02 1.07000000e+02 1.63e-13 3.56e-16 3.35e-16 0s Barrier solved model in 13 iterations and 0.01 seconds Optimal objective 1.07000000e+02 Root relaxation: objective 1.070000e+02, 539 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 107.0000000 107.00000 0.0% - 0s Explored 0 nodes (539 simplex iterations) in 0.06 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 1.070000000000e+02, best bound 1.070000000000e+02, gap 0.0% Preprocessing time: 0.02 seconds Gurobi run time: 0.06 seconds Total run time: 0.08 seconds Objective: 107 Solution: 3 x [74] 1 x [1, 74] 2 x [2, 73] 3 x [3, 72] 4 x [71] 1 x [6, 70] 2 x [5, 70] 4 x [4, 69] 3 x [8, 68] 1 x [7, 68] 2 x [9, 67] 1 x [2, 67] 5 x [66] 1 x [10, 66] 2 x [11, 65] 1 x [12, 64] 1 x [11, 64] 3 x [15, 63] 2 x [16, 62] 2 x [14, 62] 1 x [17, 61] 1 x [17, 60] 3 x [17, 59] 1 x [18, 58] 1 x [20, 57] 1 x [17, 57] 1 x [21, 56] 2 x [18, 56] 2 x [20, 55] 2 x [19, 55] 1 x [22, 54] 1 x [19, 54] 2 x [13, 54] 3 x [24, 53] 2 x [25, 52] 2 x [24, 52] 2 x [16, 52] 1 x [51] 2 x [26, 51] 3 x [23, 50] 1 x [28, 49] 2 x [26, 49] 1 x [15, 48] 2 x [29, 47] 1 x [27, 47] 2 x [32, 46] 3 x [31, 46] 2 x [32, 45] 1 x [30, 45] 1 x [3, 12, 45] 1 x [14, 44] 3 x [34, 43] 2 x [42] 1 x [37, 41] 2 x [36, 41] 1 x [33, 41] 2 x [35, 40] 1 x [38, 39]