
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 03:23:35 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11374.33.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/grafo11374.33.lp
Reading time = 0.12 seconds
: 69434 rows, 1531 columns, 209540 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 69434 rows, 1531 columns and 209540 nonzeros
Model fingerprint: 0x39da919f
Variable types: 36 continuous, 1495 integer (1495 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 33808 rows and 50 columns
Presolve time: 0.37s
Presolved: 35626 rows, 1481 columns, 108458 nonzeros
Variable types: 0 continuous, 1481 integer (1445 binary)
Root relaxation presolved: 23030 rows, 14077 columns, 83266 nonzeros


Root relaxation: objective 3.800000e+01, 1522 iterations, 0.47 seconds (0.42 work units)

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

     0     0   38.00000    0  300          -   38.00000      -     -    1s
     0     0   38.00000    0  504          -   38.00000      -     -    4s
     0     0   38.00000    0  494          -   38.00000      -     -    4s
H    0     0                       9.0000000   38.00000   322%     -    7s
     0     0   38.00000    0  366    9.00000   38.00000   322%     -   10s
H    0     0                      10.0000000   38.00000   280%     -   10s
     0     0   38.00000    0  413   10.00000   38.00000   280%     -   11s
     0     0   38.00000    0  365   10.00000   38.00000   280%     -   16s
     0     0   38.00000    0  344   10.00000   38.00000   280%     -   16s
     0     0   38.00000    0  441   10.00000   38.00000   280%     -   22s
     0     0   38.00000    0  428   10.00000   38.00000   280%     -   23s
     0     0   38.00000    0  479   10.00000   38.00000   280%     -   29s
     0     0   38.00000    0  455   10.00000   38.00000   280%     -   30s
     0     0   38.00000    0  385   10.00000   38.00000   280%     -   36s
     0     0   38.00000    0  329   10.00000   38.00000   280%     -   38s
H    0     0                      13.0000000   38.00000   192%     -   42s
H    0     0                      16.0000000   38.00000   137%     -   43s
     0     2   38.00000    0  329   16.00000   38.00000   137%     -   45s
H   29    34                      18.0000000   38.00000   111%   683   49s
    45    50   38.00000    8  354   18.00000   38.00000   111%   552   50s

Cutting planes:
  Cover: 6
  Clique: 20
  MIR: 87
  StrongCG: 2
  Inf proof: 2
  Zero half: 8
  RLT: 78

Explored 49 nodes (80457 simplex iterations) in 50.04 seconds (50.33 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 18 16 13 ... 9

Time limit reached
Best objective 1.800000000000e+01, best bound 3.800000000000e+01, gap 111.1111%

Wrote result file './lp_solutions/grafo11374.33.sol'

