
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:34:22 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7572.42.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/grafo7572.42.lp
Reading time = 0.11 seconds
: 69983 rows, 1969 columns, 211356 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 69983 rows, 1969 columns and 211356 nonzeros
Model fingerprint: 0x6f70c1d5
Variable types: 41 continuous, 1928 integer (1928 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 14616 rows and 18 columns
Presolve time: 0.47s
Presolved: 55367 rows, 1951 columns, 167824 nonzeros
Variable types: 0 continuous, 1951 integer (1910 binary)
Root relaxation presolved: 1951 rows, 57318 columns, 169775 nonzeros


Root relaxation: objective 3.700000e+01, 1662 iterations, 0.32 seconds (0.28 work units)

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

     0     0   37.00000    0  318          -   37.00000      -     -    3s
H    0     0                       7.0000000   37.00000   429%     -    3s
H    0     0                       8.0000000   37.00000   362%     -    3s
H    0     0                       9.0000000   37.00000   311%     -    4s
H    0     0                      11.0000000   37.00000   236%     -    4s
     0     0   37.00000    0  629   11.00000   37.00000   236%     -    7s
     0     0   37.00000    0  589   11.00000   37.00000   236%     -    9s
     0     0   37.00000    0  469   11.00000   37.00000   236%     -   26s
     0     0   37.00000    0  441   11.00000   37.00000   236%     -   27s
     0     0   37.00000    0  472   11.00000   37.00000   236%     -   39s
     0     0   37.00000    0  392   11.00000   37.00000   236%     -   39s
     0     0   37.00000    0  561   11.00000   37.00000   236%     -   50s

Cutting planes:
  Cover: 36
  Clique: 9
  MIR: 118
  StrongCG: 2
  GUB cover: 1
  Zero half: 28
  RLT: 60

Explored 1 nodes (57076 simplex iterations) in 50.08 seconds (47.84 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 11 9 8 7 

Time limit reached
Best objective 1.100000000000e+01, best bound 3.700000000000e+01, gap 236.3636%

Wrote result file './lp_solutions/grafo7572.42.sol'

