
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:41:19 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2947.37.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/grafo2947.37.lp
Reading time = 0.09 seconds
: 54134 rows, 1661 columns, 163623 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 54134 rows, 1661 columns and 163623 nonzeros
Model fingerprint: 0x7cc529b6
Variable types: 37 continuous, 1624 integer (1624 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 17041 rows and 50 columns
Presolve time: 0.32s
Presolved: 37093 rows, 1611 columns, 112842 nonzeros
Variable types: 0 continuous, 1611 integer (1574 binary)
Root relaxation presolved: 21553 rows, 17151 columns, 81762 nonzeros


Root relaxation: objective 3.800000e+01, 2380 iterations, 0.88 seconds (0.78 work units)

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

     0     0   38.00000    0  426          -   38.00000      -     -    3s
H    0     0                      10.0000000   38.00000   280%     -    4s
H    0     0                      11.0000000   38.00000   245%     -    7s
     0     0   38.00000    0  622   11.00000   38.00000   245%     -    7s
H    0     0                      12.0000000   38.00000   217%     -    7s
     0     0   38.00000    0  610   12.00000   38.00000   217%     -    7s
H    0     0                      13.0000000   38.00000   192%     -   22s
     0     0   38.00000    0  479   13.00000   38.00000   192%     -   22s
     0     0   38.00000    0  482   13.00000   38.00000   192%     -   22s
H    0     0                      14.0000000   38.00000   171%     -   35s
     0     0   38.00000    0  400   14.00000   38.00000   171%     -   35s
     0     0   38.00000    0  451   14.00000   38.00000   171%     -   35s
H    0     0                      15.0000000   38.00000   153%     -   36s
     0     0   38.00000    0  472   15.00000   38.00000   153%     -   44s
     0     0   38.00000    0  465   15.00000   38.00000   153%     -   45s
     0     0   38.00000    0  551   15.00000   38.00000   153%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 27
  Clique: 2
  MIR: 164
  StrongCG: 5
  GUB cover: 1
  Inf proof: 1
  Zero half: 43
  RLT: 57
  BQP: 1

Explored 1 nodes (71876 simplex iterations) in 50.04 seconds (47.57 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 15 14 13 ... 10

Time limit reached
Best objective 1.500000000000e+01, best bound 3.800000000000e+01, gap 153.3333%

Wrote result file './lp_solutions/grafo2947.37.sol'

