
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 03:22:45 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11370.33.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/grafo11370.33.lp
Reading time = 0.13 seconds
: 77488 rows, 1252 columns, 233317 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 77488 rows, 1252 columns and 233317 nonzeros
Model fingerprint: 0xd3de37bc
Variable types: 31 continuous, 1221 integer (1221 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 31007 rows and 5 columns
Presolve time: 0.50s
Presolved: 46481 rows, 1247 columns, 140388 nonzeros
Variable types: 0 continuous, 1247 integer (1216 binary)
Root relaxation presolved: 1245 rows, 47726 columns, 141635 nonzeros


Root relaxation: objective 2.800000e+01, 1273 iterations, 0.33 seconds (0.37 work units)

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

     0     0   28.00000    0  324          -   28.00000      -     -    5s
H    0     0                       8.0000000   28.00000   250%     -    5s
     0     0   28.00000    0  420    8.00000   28.00000   250%     -    7s
H    0     0                       9.0000000   28.00000   211%     -    8s
     0     0   28.00000    0  411    9.00000   28.00000   211%     -    8s
     0     0   27.66667    0  259    9.00000   27.66667   207%     -   20s
     0     0   27.66667    0  253    9.00000   27.66667   207%     -   20s
     0     0   27.66667    0  245    9.00000   27.66667   207%     -   24s
     0     0   27.66667    0  283    9.00000   27.66667   207%     -   25s
H    0     0                      13.0000000   27.66667   113%     -   31s
     0     0   27.66667    0  336   13.00000   27.66667   113%     -   31s
     0     0   27.66667    0  330   13.00000   27.66667   113%     -   31s
     0     0   27.66667    0  275   13.00000   27.66667   113%     -   36s
H    0     0                      14.0000000   27.66667  97.6%     -   37s
     0     0   27.66667    0  289   14.00000   27.66667  97.6%     -   37s
     0     0   27.59848    0  269   14.00000   27.59848  97.1%     -   44s
     0     0   27.59690    0  257   14.00000   27.59690  97.1%     -   45s
     0     0   27.58974    0  308   14.00000   27.58974  97.1%     -   50s

Cutting planes:
  Cover: 3
  Clique: 21
  MIR: 23
  StrongCG: 1
  Zero half: 5
  RLT: 36
  BQP: 1

Explored 1 nodes (49981 simplex iterations) in 50.08 seconds (48.16 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 14 13 9 8 

Time limit reached
Best objective 1.400000000000e+01, best bound 2.700000000000e+01, gap 92.8571%

Wrote result file './lp_solutions/grafo11370.33.sol'

