
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 03:04:18 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11022.32.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/grafo11022.32.lp
Reading time = 0.18 seconds
: 107868 rows, 1157 columns, 324351 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 107868 rows, 1157 columns and 324351 nonzeros
Model fingerprint: 0x6dcc1ca3
Variable types: 29 continuous, 1128 integer (1128 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]
Found heuristic solution: objective 4.0000000
Presolve removed 50864 rows and 8 columns
Presolve time: 0.71s
Presolved: 57004 rows, 1149 columns, 171892 nonzeros
Variable types: 0 continuous, 1149 integer (1120 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 1147 rows, 58151 columns, 173041 nonzeros


Root relaxation: objective 2.300000e+01, 1380 iterations, 0.53 seconds (0.57 work units)

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

     0     0   23.00000    0  264    8.00000   23.00000   187%     -    3s
     0     0   23.00000    0  354    8.00000   23.00000   187%     -    5s
     0     0   23.00000    0  337    8.00000   23.00000   187%     -    6s
     0     0   23.00000    0  252    8.00000   23.00000   187%     -   10s
     0     0   23.00000    0  212    8.00000   23.00000   187%     -   11s
     0     0   22.98667    0  301    8.00000   22.98667   187%     -   16s
     0     0   22.98667    0  269    8.00000   22.98667   187%     -   16s
     0     0   22.98667    0  210    8.00000   22.98667   187%     -   21s
     0     0   22.98667    0  240    8.00000   22.98667   187%     -   22s
     0     0   22.98667    0  226    8.00000   22.98667   187%     -   26s
     0     0   22.98667    0  196    8.00000   22.98667   187%     -   27s
     0     0   22.98667    0  217    8.00000   22.98667   187%     -   30s
     0     0   22.98667    0  199    8.00000   22.98667   187%     -   31s
     0     0   22.93333    0  263    8.00000   22.93333   187%     -   36s
     0     0   22.93333    0  263    8.00000   22.93333   187%     -   38s
     0     2   22.93333    0  191    8.00000   22.93333   187%     -   45s
    27    32   22.93023    8  288    8.00000   22.93333   187%   606   50s

Cutting planes:
  Gomory: 2
  Clique: 27
  MIR: 8
  Zero half: 4
  RLT: 23

Explored 31 nodes (48565 simplex iterations) in 50.10 seconds (54.04 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 4 

Time limit reached
Best objective 8.000000000000e+00, best bound 2.200000000000e+01, gap 175.0000%

Wrote result file './lp_solutions/grafo11022.32.sol'

