
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:14:38 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5430.41.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/grafo5430.41.lp
Reading time = 0.10 seconds
: 60247 rows, 1897 columns, 182087 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 60247 rows, 1897 columns and 182087 nonzeros
Model fingerprint: 0x9ecb6b13
Variable types: 40 continuous, 1857 integer (1857 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 11028 rows and 29 columns
Presolve time: 0.41s
Presolved: 49219 rows, 1868 columns, 149409 nonzeros
Variable types: 0 continuous, 1868 integer (1828 binary)
Root relaxation presolved: 28679 rows, 22408 columns, 108329 nonzeros


Root relaxation: objective 3.500000e+01, 1547 iterations, 0.44 seconds (0.38 work units)

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

     0     0   35.00000    0  303          -   35.00000      -     -    1s
H    0     0                      12.0000000   35.00000   192%     -    1s
H    0     0                      13.0000000   35.00000   169%     -    1s
     0     0   35.00000    0  611   13.00000   35.00000   169%     -    5s
     0     0   35.00000    0  639   13.00000   35.00000   169%     -    6s
H    0     0                      15.0000000   35.00000   133%     -   18s
     0     0   35.00000    0  429   15.00000   35.00000   133%     -   18s
     0     0   35.00000    0  416   15.00000   35.00000   133%     -   19s
     0     0   35.00000    0  344   15.00000   35.00000   133%     -   27s
     0     0   35.00000    0  382   15.00000   35.00000   133%     -   27s
H    0     0                      16.0000000   35.00000   119%     -   47s
     0     0   35.00000    0  523   16.00000   35.00000   119%     -   47s
     0     0   35.00000    0  446   16.00000   35.00000   119%     -   48s
     0     0          -    0        16.00000   35.00000   119%     -   50s

Cutting planes:
  Cover: 29
  Clique: 8
  MIR: 110
  StrongCG: 1
  GUB cover: 3
  Zero half: 26
  RLT: 49

Explored 1 nodes (56438 simplex iterations) in 50.05 seconds (46.01 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 16 15 13 12 

Time limit reached
Best objective 1.600000000000e+01, best bound 3.500000000000e+01, gap 118.7500%

Wrote result file './lp_solutions/grafo5430.41.sol'

