
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 00:28:59 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3229.40.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/grafo3229.40.lp
Reading time = 0.29 seconds
: 160661 rows, 1944 columns, 483502 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 160661 rows, 1944 columns and 483502 nonzeros
Model fingerprint: 0x79cef55e
Variable types: 41 continuous, 1903 integer (1903 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 89350 rows and 52 columns
Presolve time: 1.22s
Presolved: 71311 rows, 1892 columns, 215769 nonzeros
Variable types: 0 continuous, 1892 integer (1851 binary)
Root relaxation presolved: 1892 rows, 73203 columns, 217661 nonzeros


Root relaxation: objective 3.200000e+01, 2186 iterations, 0.76 seconds (0.59 work units)
Total elapsed time = 7.80s (DegenMoves)
Total elapsed time = 10.31s (DegenMoves)

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

     0     0   32.00000    0  323          -   32.00000      -     -   12s
H    0     0                       8.0000000   32.00000   300%     -   12s
     0     0   32.00000    0  633    8.00000   32.00000   300%     -   24s
H    0     0                      10.0000000   32.00000   220%     -   24s
     0     0   32.00000    0  619   10.00000   32.00000   220%     -   25s
     0     0   32.00000    0  420   10.00000   32.00000   220%     -   46s
H    0     0                      11.0000000   32.00000   191%     -   46s
     0     0   32.00000    0  436   11.00000   32.00000   191%     -   47s

Cutting planes:
  Cover: 24
  Clique: 11
  MIR: 93
  StrongCG: 2
  GUB cover: 1
  Zero half: 1
  RLT: 12
  BQP: 2

Explored 1 nodes (32338 simplex iterations) in 50.27 seconds (37.09 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 10 8 

Time limit reached
Best objective 1.100000000000e+01, best bound 3.200000000000e+01, gap 190.9091%

Wrote result file './lp_solutions/grafo3229.40.sol'

