
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:12:01 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2504.36.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/grafo2504.36.lp
Reading time = 0.17 seconds
: 99045 rows, 1808 columns, 298580 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 99045 rows, 1808 columns and 298580 nonzeros
Model fingerprint: 0x69e197fa
Variable types: 41 continuous, 1767 integer (1767 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 2.0000000
Presolve removed 35838 rows and 15 columns
Presolve time: 0.78s
Presolved: 63207 rows, 1793 columns, 191389 nonzeros
Variable types: 0 continuous, 1793 integer (1752 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 1793 rows, 65000 columns, 193182 nonzeros


Root relaxation: objective 5.000000e+01, 2129 iterations, 0.64 seconds (0.59 work units)
Total elapsed time = 9.17s (DegenMoves)
Total elapsed time = 10.28s (DegenMoves)

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

     0     0   50.00000    0  463    4.00000   50.00000  1150%     -   10s
H    0     0                       5.0000000   50.00000   900%     -   10s
H    0     0                       8.0000000   50.00000   525%     -   13s
     0     0   50.00000    0  690    8.00000   50.00000   525%     -   29s
     0     0   50.00000    0  691    8.00000   50.00000   525%     -   33s
     0     0          -    0         8.00000   50.00000   525%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 34
  Cover: 20
  Clique: 15
  MIR: 122
  StrongCG: 1
  Zero half: 10
  RLT: 57
  BQP: 2

Explored 1 nodes (19019 simplex iterations) in 50.05 seconds (23.43 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 8 5 4 2 

Time limit reached
Best objective 8.000000000000e+00, best bound 5.000000000000e+01, gap 525.0000%

Wrote result file './lp_solutions/grafo2504.36.sol'

