
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 15:52:31 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2853.23.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/grafo2853.23.lp
Reading time = 0.25 seconds
: 155588 rows, 1089 columns, 467696 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 155588 rows, 1089 columns and 467696 nonzeros
Model fingerprint: 0xf3d792a6
Variable types: 32 continuous, 1057 integer (1057 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 77492 rows and 5 columns
Presolve time: 1.05s
Presolved: 78096 rows, 1084 columns, 235377 nonzeros
Variable types: 0 continuous, 1084 integer (1052 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 1079 rows, 79175 columns, 236461 nonzeros


Root relaxation: objective 3.800000e+01, 1336 iterations, 0.51 seconds (0.60 work units)
Total elapsed time = 5.42s (DegenMoves)

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

     0     0   38.00000    0  425    6.00000   38.00000   533%     -    6s
H    0     0                       8.0000000   38.00000   375%     -    6s
     0     0   38.00000    0  569    8.00000   38.00000   375%     -   13s
     0     0   38.00000    0  575    8.00000   38.00000   375%     -   14s
     0     0   38.00000    0  345    8.00000   38.00000   375%     -   30s
     0     0   38.00000    0  291    8.00000   38.00000   375%     -   31s
     0     0   38.00000    0  343    8.00000   38.00000   375%     -   41s
     0     0   38.00000    0  269    8.00000   38.00000   375%     -   42s
     0     0   38.00000    0  432    8.00000   38.00000   375%     -   50s

Cutting planes:
  Cover: 36
  Clique: 42
  MIR: 124
  StrongCG: 5
  Zero half: 55
  RLT: 49
  BQP: 4

Explored 1 nodes (33870 simplex iterations) in 50.03 seconds (64.55 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 6 

Time limit reached
Best objective 8.000000000000e+00, best bound 3.800000000000e+01, gap 375.0000%

Wrote result file './lp_solutions/grafo2853.23.sol'

