
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:01:38 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6908.43.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/grafo6908.43.lp
Reading time = 0.09 seconds
: 53364 rows, 1826 columns, 161210 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 53364 rows, 1826 columns and 161210 nonzeros
Model fingerprint: 0x07504c28
Variable types: 38 continuous, 1788 integer (1788 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 -0.0000000
Presolve removed 7073 rows and 39 columns
Presolve time: 0.34s
Presolved: 46291 rows, 1787 columns, 140431 nonzeros
Variable types: 0 continuous, 1787 integer (1749 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 25514 rows, 22564 columns, 98877 nonzeros


Root relaxation: objective 2.800000e+01, 2911 iterations, 1.25 seconds (1.17 work units)

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

     0     0   28.00000    0  479    4.00000   28.00000   600%     -    5s
H    0     0                       7.0000000   28.00000   300%     -    5s
H    0     0                       8.0000000   28.00000   250%     -    6s
     0     0   28.00000    0  662    8.00000   28.00000   250%     -   11s
H    0     0                       9.0000000   28.00000   211%     -   11s
     0     0   28.00000    0  617    9.00000   28.00000   211%     -   11s
     0     0   28.00000    0  491    9.00000   28.00000   211%     -   24s
     0     0   28.00000    0  432    9.00000   28.00000   211%     -   25s
H    0     0                      10.0000000   28.00000   180%     -   47s
     0     0   28.00000    0  324   10.00000   28.00000   180%     -   47s
     0     0   28.00000    0  304   10.00000   28.00000   180%     -   47s
     0     0   28.00000    0  435   10.00000   28.00000   180%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 21
  MIR: 89
  GUB cover: 6
  Zero half: 37
  RLT: 38

Explored 1 nodes (62133 simplex iterations) in 50.04 seconds (47.11 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 10 9 8 ... -0

Time limit reached
Best objective 1.000000000000e+01, best bound 2.800000000000e+01, gap 180.0000%

Wrote result file './lp_solutions/grafo6908.43.sol'

