
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:40:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1435.43.log"
Using license file /Users/sara/gurobi.lic
Academic license - for non-commercial use only - expires 2025-05-12

Gurobi Optimizer version 11.0.1 build v11.0.1rc0 (mac64[x86] - Darwin 21.6.0 21G651)
Copyright (c) 2024, Gurobi Optimization, LLC

Read LP format model from file ./lp_problems/grafo1435.43.lp
Reading time = 0.30 seconds
: 163310 rows, 2710 columns, 492383 nonzeros

CPU model: Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 163310 rows, 2710 columns and 492383 nonzeros
Model fingerprint: 0x4b959bf9
Variable types: 51 continuous, 2659 integer (2659 binary)
Coefficient statistics:
  Matrix range     [5e-01, 5e+01]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 5e+01]
Presolve removed 58117 rows and 15 columns
Presolve time: 1.26s
Presolved: 105193 rows, 2695 columns, 318750 nonzeros
Variable types: 0 continuous, 2695 integer (2644 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2687 rows, 107880 columns, 321445 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14334    6.0784657e+01   0.000000e+00   2.407973e+05      5s
   31563    5.6669764e+01   0.000000e+00   3.969882e+04     10s
   47943    5.6645716e+01   0.000000e+00   3.548924e+03     15s
   62503    5.6640962e+01   0.000000e+00   1.631810e+03     20s
   65730    5.7000000e+01   0.000000e+00   0.000000e+00     21s
   65730    5.7000000e+01   0.000000e+00   0.000000e+00     21s
   65730    5.7000000e+01   0.000000e+00   0.000000e+00     21s

Root relaxation: objective 5.700000e+01, 65730 iterations, 19.65 seconds (12.05 work units)
Total elapsed time = 42.66s (DegenMoves)
Total elapsed time = 46.00s (DegenMoves)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   57.00000    0  830    9.00000   57.00000   533%     -   48s
H    0     0                      11.0000000   57.00000   418%     -   48s

Cutting planes:
  Cover: 41
  Clique: 21
  MIR: 156
  StrongCG: 3
  GUB cover: 1

Explored 1 nodes (81961 simplex iterations) in 50.08 seconds (40.51 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 9 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.700000000000e+01, gap 418.1818%

Wrote result file './lp_solutions/grafo1435.43.sol'

