
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 01:51:37 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo9944.41.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/grafo9944.41.lp
Reading time = 0.12 seconds
: 63468 rows, 1982 columns, 191941 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 63468 rows, 1982 columns and 191941 nonzeros
Model fingerprint: 0x47538ddc
Variable types: 40 continuous, 1942 integer (1942 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 14980 rows and 85 columns
Presolve time: 0.46s
Presolved: 48488 rows, 1897 columns, 147309 nonzeros
Variable types: 0 continuous, 1897 integer (1857 binary)
Root relaxation presolved: 27948 rows, 22437 columns, 106229 nonzeros


Root relaxation: objective 3.100000e+01, 1274 iterations, 0.60 seconds (0.34 work units)

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

     0     0   31.00000    0  306          -   31.00000      -     -    2s
H    0     0                       9.0000000   31.00000   244%     -    3s
     0     0   31.00000    0  462    9.00000   31.00000   244%     -    6s
     0     0   31.00000    0  472    9.00000   31.00000   244%     -    6s
     0     0   31.00000    0  469    9.00000   31.00000   244%     -   14s
H    0     0                      10.0000000   31.00000   210%     -   14s
     0     0   31.00000    0  433   10.00000   31.00000   210%     -   15s
     0     0   31.00000    0  500   10.00000   31.00000   210%     -   26s
     0     0   31.00000    0  458   10.00000   31.00000   210%     -   26s
     0     0   31.00000    0  247   10.00000   31.00000   210%     -   31s
H    0     0                      11.0000000   31.00000   182%     -   31s
     0     0   31.00000    0  242   11.00000   31.00000   182%     -   31s
     0     0   31.00000    0  276   11.00000   31.00000   182%     -   36s
     0     0   31.00000    0  343   11.00000   31.00000   182%     -   37s
     0     0   31.00000    0  213   11.00000   31.00000   182%     -   39s
H    0     0                      12.0000000   31.00000   158%     -   40s
     0     0   31.00000    0  329   12.00000   31.00000   158%     -   40s
     0     0   31.00000    0  381   12.00000   31.00000   158%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 20
  Clique: 16
  MIR: 101
  StrongCG: 1
  GUB cover: 1
  Zero half: 74
  RLT: 50
  BQP: 4

Explored 1 nodes (54244 simplex iterations) in 50.10 seconds (34.95 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 12 11 10 9 

Time limit reached
Best objective 1.200000000000e+01, best bound 3.100000000000e+01, gap 158.3333%

Wrote result file './lp_solutions/grafo9944.41.sol'

