
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:46:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5988.37.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/grafo5988.37.lp
Reading time = 0.09 seconds
: 56436 rows, 1852 columns, 170859 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 56436 rows, 1852 columns and 170859 nonzeros
Model fingerprint: 0x512c6205
Variable types: 44 continuous, 1808 integer (1808 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 8650 rows and 42 columns
Presolve time: 0.38s
Presolved: 47786 rows, 1810 columns, 145285 nonzeros
Variable types: 0 continuous, 1810 integer (1766 binary)
Root relaxation presolved: 26772 rows, 22824 columns, 103257 nonzeros


Root relaxation: objective 3.500000e+01, 4034 iterations, 1.95 seconds (1.83 work units)

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

     0     0   35.00000    0  368          -   35.00000      -     -    4s
H    0     0                       6.0000000   35.00000   483%     -    4s
H    0     0                       7.0000000   35.00000   400%     -    5s
H    0     0                       8.0000000   35.00000   337%     -    5s
H    0     0                       9.0000000   35.00000   289%     -    5s
H    0     0                      10.0000000   35.00000   250%     -   10s
     0     0   35.00000    0  612   10.00000   35.00000   250%     -   10s
     0     0   35.00000    0  603   10.00000   35.00000   250%     -   10s
H    0     0                      11.0000000   35.00000   218%     -   22s
     0     0   35.00000    0  479   11.00000   35.00000   218%     -   22s
     0     0   35.00000    0  480   11.00000   35.00000   218%     -   22s
     0     0   35.00000    0  352   11.00000   35.00000   218%     -   31s
     0     0   35.00000    0  399   11.00000   35.00000   218%     -   32s
     0     0   35.00000    0  380   11.00000   35.00000   218%     -   44s
     0     0   35.00000    0  428   11.00000   35.00000   218%     -   45s
     0     0   35.00000    0  576   11.00000   35.00000   218%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 25
  Clique: 1
  MIR: 110
  StrongCG: 2
  GUB cover: 4
  Zero half: 35
  RLT: 57

Explored 1 nodes (62908 simplex iterations) in 50.07 seconds (44.61 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 11 10 9 ... 6

Time limit reached
Best objective 1.100000000000e+01, best bound 3.500000000000e+01, gap 218.1818%

Wrote result file './lp_solutions/grafo5988.37.sol'

