
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:57:56 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7304.45.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/grafo7304.45.lp
Reading time = 0.13 seconds
: 80004 rows, 2143 columns, 241543 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 80004 rows, 2143 columns and 241543 nonzeros
Model fingerprint: 0x08f2a290
Variable types: 43 continuous, 2100 integer (2100 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 15200 rows and 34 columns
Presolve time: 0.56s
Presolved: 64804 rows, 2109 columns, 196267 nonzeros
Variable types: 0 continuous, 2109 integer (2066 binary)
Root relaxation presolved: 2109 rows, 66913 columns, 198376 nonzeros


Root relaxation: objective 3.100000e+01, 24431 iterations, 3.51 seconds (2.96 work units)
Total elapsed time = 10.75s (DegenMoves)
Total elapsed time = 22.36s (DegenMoves)

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

     0     0   31.00000    0  357          -   31.00000      -     -   24s
H    0     0                       5.0000000   31.00000   520%     -   24s
H    0     0                       6.0000000   31.00000   417%     -   25s
H    0     0                       8.0000000   31.00000   287%     -   25s
     0     0   31.00000    0  623    8.00000   31.00000   287%     -   32s
H    0     0                      10.0000000   31.00000   210%     -   33s
     0     0   31.00000    0  625   10.00000   31.00000   210%     -   33s
     0     0   31.00000    0  293   10.00000   31.00000   210%     -   43s
     0     0   31.00000    0  283   10.00000   31.00000   210%     -   44s
H    0     0                      11.0000000   31.00000   182%     -   44s
     0     0   31.00000    0  485   11.00000   31.00000   182%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 23
  Clique: 21
  MIR: 124
  StrongCG: 1
  GUB cover: 3
  Zero half: 79
  RLT: 36
  BQP: 1

Explored 1 nodes (73559 simplex iterations) in 50.09 seconds (53.10 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 11 10 8 ... 5

Time limit reached
Best objective 1.100000000000e+01, best bound 3.100000000000e+01, gap 181.8182%

Wrote result file './lp_solutions/grafo7304.45.sol'

