
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 19:11:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2558.34.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/grafo2558.34.lp
Reading time = 0.08 seconds
: 50369 rows, 1551 columns, 152252 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 50369 rows, 1551 columns and 152252 nonzeros
Model fingerprint: 0x4441724f
Variable types: 37 continuous, 1514 integer (1514 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 13369 rows and 10 columns
Presolve time: 0.34s
Presolved: 37000 rows, 1541 columns, 112528 nonzeros
Variable types: 0 continuous, 1541 integer (1504 binary)
Root relaxation presolved: 23246 rows, 15295 columns, 85020 nonzeros


Root relaxation: objective 4.300000e+01, 2450 iterations, 0.87 seconds (0.82 work units)

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

     0     0   43.00000    0  455          -   43.00000      -     -    3s
H    0     0                       4.0000000   43.00000   975%     -    3s
H    0     0                       6.0000000   43.00000   617%     -    3s
     0     0   43.00000    0  601    6.00000   43.00000   617%     -    7s
H    0     0                       7.0000000   43.00000   514%     -    7s
     0     0   43.00000    0  650    7.00000   43.00000   514%     -    8s
H    0     0                      10.0000000   43.00000   330%     -   31s
H    0     0                      11.0000000   43.00000   291%     -   31s
     0     0   43.00000    0  455   11.00000   43.00000   291%     -   32s
     0     0   43.00000    0  412   11.00000   43.00000   291%     -   32s
     0     0   43.00000    0  663   11.00000   43.00000   291%     -   50s

Cutting planes:
  Cover: 39
  Clique: 5
  MIR: 193
  StrongCG: 3
  GUB cover: 2
  Zero half: 117
  RLT: 74

Explored 1 nodes (64045 simplex iterations) in 50.03 seconds (48.13 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 11 10 7 ... 4

Time limit reached
Best objective 1.100000000000e+01, best bound 4.300000000000e+01, gap 290.9091%

Wrote result file './lp_solutions/grafo2558.34.sol'

