Build (method = -2) #dp: 11598 Step-3' Graph: 739 vertices and 3316 arcs (0.04s) Step-4' Graph: 443 vertices and 2724 arcs (0.04s) #V4/#V3 = 0.60 #A4/#A3 = 0.82 Ready! (0.04s) Optimize a model with 543 rows, 2725 columns and 7293 nonzeros Presolve removed 222 rows and 247 columns Presolve time: 0.04s Presolved: 321 rows, 2478 columns, 7309 nonzeros Variable types: 0 continuous, 2478 integer (2047 binary) Found heuristic solution: objective 68.0000000 Optimize a model with 321 rows, 2478 columns and 7309 nonzeros Presolved: 321 rows, 2478 columns, 7309 nonzeros Root barrier log... Ordering time: 0.00s Barrier statistics: AA' NZ : 3.716e+03 Factor NZ : 1.104e+04 (roughly 1 MByte of memory) Factor Ops : 5.836e+05 (less than 1 second per iteration) Threads : 1 Objective Residual Iter Primal Dual Primal Dual Compl Time 0 -5.91150431e+02 -3.04094098e+03 1.61e+04 2.34e-01 1.13e+01 0s 1 -2.35938004e+01 -1.63446674e+03 2.97e+03 1.01e-01 2.29e+00 0s 2 1.03865956e+02 -4.82477267e+02 4.22e+02 9.90e-03 3.67e-01 0s 3 7.66090464e+01 -4.82144002e+01 4.36e+01 5.29e-04 4.80e-02 0s 4 6.71739535e+01 3.33078607e+01 8.41e+00 3.68e-05 1.04e-02 0s 5 6.34915778e+01 4.55424736e+01 2.85e+00 2.78e-16 4.64e-03 0s 6 6.03895860e+01 5.14525381e+01 1.07e+00 2.62e-16 2.13e-03 0s 7 5.83498312e+01 5.44712593e+01 3.99e-01 4.44e-16 8.98e-04 0s 8 5.71860882e+01 5.59828823e+01 4.41e-02 2.22e-16 2.56e-04 0s 9 5.70032306e+01 5.69895598e+01 8.53e-05 2.59e-16 2.78e-06 0s 10 5.70000034e+01 5.69999896e+01 8.70e-14 4.44e-16 2.79e-09 0s 11 5.70000000e+01 5.70000000e+01 2.91e-13 3.79e-16 2.79e-15 0s Barrier solved model in 11 iterations and 0.03 seconds Optimal objective 5.70000000e+01 Root relaxation: objective 5.700000e+01, 791 iterations, 0.03 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 57.0000000 57.00000 0.0% - 0s Explored 0 nodes (791 simplex iterations) in 0.10 seconds Thread count was 1 (of 8 available processors) Optimal solution found (tolerance 0.00e+00) Best objective 5.700000000000e+01, best bound 5.700000000000e+01, gap 0.0% Preprocessing time: 0.06 seconds Gurobi run time: 0.10 seconds Total run time: 0.16 seconds Objective: 57 Solution: 1 x [99] 1 x [88] 1 x [83] 1 x [89] 1 x [93] 1 x [94] 1 x [85] 1 x [77] 1 x [66] 1 x [14, 87] 1 x [95] 1 x [64] 1 x [5, 92] 1 x [10, 61] 1 x [100] 1 x [8, 57] 1 x [17, 81] 1 x [16, 72] 1 x [12, 86] 1 x [96] 1 x [44, 51] 1 x [42, 48] 1 x [43, 55] 1 x [30, 41] 1 x [97] 1 x [6, 90] 1 x [40, 53] 1 x [38, 49] 1 x [19, 84] 1 x [58] 1 x [50] 1 x [9, 80] 1 x [35, 62] 1 x [15, 82] 1 x [21, 74] 1 x [32, 45] 1 x [4, 28, 60] 1 x [33, 63] 1 x [22, 76] 1 x [11, 79] 1 x [24, 69] 1 x [31, 67] 1 x [36, 56] 1 x [25, 65] 1 x [3, 98] 1 x [39, 52] 1 x [23, 71] 1 x [18, 73] 1 x [20, 75] 1 x [7, 78] 1 x [29, 68] 1 x [34, 59] 1 x [2, 91] 1 x [37, 47] 1 x [13, 54] 1 x [27, 46] 1 x [1, 26, 70]