
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:45:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo9999.39.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/grafo9999.39.lp
Reading time = 0.10 seconds
: 61087 rows, 2003 columns, 184935 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 61087 rows, 2003 columns and 184935 nonzeros
Model fingerprint: 0x7c92de00
Variable types: 43 continuous, 1960 integer (1960 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 11552 rows and 46 columns
Presolve time: 0.40s
Presolved: 49535 rows, 1957 columns, 150640 nonzeros
Variable types: 0 continuous, 1957 integer (1914 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 28055 rows, 23437 columns, 107680 nonzeros


Root relaxation: objective 4.300000e+01, 1560 iterations, 0.40 seconds (0.36 work units)

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

     0     0   43.00000    0  377    9.00000   43.00000   378%     -    2s
H    0     0                      11.0000000   43.00000   291%     -    3s
     0     0   43.00000    0  686   11.00000   43.00000   291%     -    7s
     0     0   42.00000    0  660   11.00000   42.00000   282%     -    7s
H    0     0                      14.0000000   42.00000   200%     -   11s
H    0     0                      15.0000000   42.00000   180%     -   20s
H    0     0                      16.0000000   42.00000   163%     -   20s
     0     0   42.00000    0  394   16.00000   42.00000   163%     -   20s
     0     0   42.00000    0  378   16.00000   42.00000   163%     -   21s
H    0     0                      17.0000000   42.00000   147%     -   25s
H    0     0                      18.0000000   42.00000   133%     -   25s
     0     0   42.00000    0  407   18.00000   42.00000   133%     -   25s
     0     0   42.00000    0  404   18.00000   42.00000   133%     -   26s
H    0     0                      19.0000000   42.00000   121%     -   45s
     0     0   42.00000    0  488   19.00000   42.00000   121%     -   45s
     0     0   42.00000    0  444   19.00000   42.00000   121%     -   46s
     0     0   42.00000    0  624   19.00000   42.00000   121%     -   50s

Cutting planes:
  Cover: 24
  Clique: 8
  MIR: 117
  StrongCG: 4
  GUB cover: 1
  Zero half: 15
  RLT: 55

Explored 1 nodes (56938 simplex iterations) in 50.06 seconds (44.65 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 19 18 17 ... 9

Time limit reached
Best objective 1.900000000000e+01, best bound 4.200000000000e+01, gap 121.0526%

Wrote result file './lp_solutions/grafo9999.39.sol'

