
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:31:17 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6826.36.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/grafo6826.36.lp
Reading time = 0.15 seconds
: 90151 rows, 1588 columns, 271616 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 90151 rows, 1588 columns and 271616 nonzeros
Model fingerprint: 0xb2d998d4
Variable types: 36 continuous, 1552 integer (1552 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 38807 rows and 17 columns
Presolve time: 0.60s
Presolved: 51344 rows, 1571 columns, 155549 nonzeros
Variable types: 0 continuous, 1571 integer (1535 binary)
Root relaxation presolved: 1571 rows, 52915 columns, 157120 nonzeros


Root relaxation: objective 3.800000e+01, 1534 iterations, 0.35 seconds (0.34 work units)

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

     0     0   38.00000    0  292          -   38.00000      -     -    4s
H    0     0                      14.0000000   38.00000   171%     -    4s
H    0     0                      15.0000000   38.00000   153%     -    5s
     0     0   38.00000    0  618   15.00000   38.00000   153%     -    9s
     0     0   38.00000    0  617   15.00000   38.00000   153%     -    9s
H    0     0                      16.0000000   38.00000   137%     -   28s
H    0     0                      17.0000000   38.00000   124%     -   28s
     0     0   38.00000    0  382   17.00000   38.00000   124%     -   28s
     0     0   38.00000    0  379   17.00000   38.00000   124%     -   28s
H    0     0                      18.0000000   38.00000   111%     -   39s
H    0     0                      19.0000000   38.00000   100%     -   39s
     0     0   38.00000    0  240   19.00000   38.00000   100%     -   39s
     0     0   38.00000    0  242   19.00000   38.00000   100%     -   39s
     0     0   38.00000    0  350   19.00000   38.00000   100%     -   50s

Cutting planes:
  Cover: 1
  Clique: 14
  MIR: 38
  Zero half: 3
  RLT: 21

Explored 1 nodes (45063 simplex iterations) in 50.09 seconds (42.60 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 19 18 17 ... 14

Time limit reached
Best objective 1.900000000000e+01, best bound 3.800000000000e+01, gap 100.0000%

Wrote result file './lp_solutions/grafo6826.36.sol'

