
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:52:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11621.40.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/grafo11621.40.lp
Reading time = 0.17 seconds
: 109676 rows, 1982 columns, 330559 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 109676 rows, 1982 columns and 330559 nonzeros
Model fingerprint: 0x23cbe488
Variable types: 42 continuous, 1940 integer (1940 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 37422 rows and 5 columns
Presolve time: 0.64s
Presolved: 72254 rows, 1977 columns, 218543 nonzeros
Variable types: 0 continuous, 1977 integer (1935 binary)
Root relaxation presolved: 1975 rows, 74229 columns, 220520 nonzeros


Root relaxation: objective 4.600000e+01, 1752 iterations, 0.51 seconds (0.48 work units)

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

     0     0   46.00000    0  271          -   46.00000      -     -    4s
H    0     0                      10.0000000   46.00000   360%     -    4s
H    0     0                      11.0000000   46.00000   318%     -    5s
     0     0   46.00000    0  625   11.00000   46.00000   318%     -   11s
H    0     0                      13.0000000   46.00000   254%     -   11s
     0     0   46.00000    0  525   13.00000   46.00000   254%     -   13s
     0     0   46.00000    0  427   13.00000   46.00000   254%     -   36s
     0     0   46.00000    0  417   13.00000   46.00000   254%     -   38s
     0     0   46.00000    0  495   13.00000   46.00000   254%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 32
  Clique: 22
  MIR: 160
  Zero half: 82
  RLT: 74
  BQP: 2

Explored 1 nodes (39620 simplex iterations) in 50.15 seconds (50.55 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 11 10 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.600000000000e+01, gap 253.8462%

Wrote result file './lp_solutions/grafo11621.40.sol'

