
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:19:35 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10049.39.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/grafo10049.39.lp
Reading time = 0.12 seconds
: 75574 rows, 2021 columns, 228376 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 75574 rows, 2021 columns and 228376 nonzeros
Model fingerprint: 0xb22bd09c
Variable types: 42 continuous, 1979 integer (1979 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 20864 rows and 107 columns
Presolve time: 0.54s
Presolved: 54710 rows, 1914 columns, 166032 nonzeros
Variable types: 0 continuous, 1914 integer (1872 binary)
Root relaxation presolved: 1911 rows, 56621 columns, 167946 nonzeros


Root relaxation: objective 4.200000e+01, 1519 iterations, 0.32 seconds (0.30 work units)

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

     0     0   42.00000    0  315          -   42.00000      -     -    2s
H    0     0                      10.0000000   42.00000   320%     -    3s
H    0     0                      12.0000000   42.00000   250%     -    3s
H    0     0                      14.0000000   42.00000   200%     -    7s
     0     0   42.00000    0  575   14.00000   42.00000   200%     -    7s
H    0     0                      15.0000000   42.00000   180%     -    8s
     0     0   42.00000    0  564   15.00000   42.00000   180%     -    8s
H    0     0                      16.0000000   42.00000   162%     -   29s
H    0     0                      17.0000000   42.00000   147%     -   29s
     0     0   42.00000    0  486   17.00000   42.00000   147%     -   29s
     0     0   42.00000    0  467   17.00000   42.00000   147%     -   30s
     0     0   42.00000    0  579   17.00000   42.00000   147%     -   45s
     0     0   42.00000    0  565   17.00000   42.00000   147%     -   46s
     0     0          -    0        17.00000   42.00000   147%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 2
  Cover: 20
  Clique: 11
  MIR: 116
  Zero half: 54
  RLT: 65

Explored 1 nodes (48131 simplex iterations) in 50.07 seconds (45.68 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 17 16 15 ... 10

Time limit reached
Best objective 1.700000000000e+01, best bound 4.200000000000e+01, gap 147.0588%

Wrote result file './lp_solutions/grafo10049.39.sol'

