
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:47:49 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6097.37.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/grafo6097.37.lp
Reading time = 0.09 seconds
: 52932 rows, 1846 columns, 160296 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 52932 rows, 1846 columns and 160296 nonzeros
Model fingerprint: 0xb7ac9ff4
Variable types: 44 continuous, 1802 integer (1802 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 6733 rows and 57 columns
Presolve time: 0.36s
Presolved: 46199 rows, 1789 columns, 140578 nonzeros
Variable types: 0 continuous, 1789 integer (1745 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 25185 rows, 22803 columns, 98550 nonzeros


Root relaxation: objective 3.200000e+01, 2728 iterations, 1.01 seconds (0.89 work units)
Total elapsed time = 5.04s (DegenMoves)

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

     0     0   32.00000    0  409    5.00000   32.00000   540%     -    5s
H    0     0                       6.0000000   32.00000   433%     -    5s
H    0     0                       7.0000000   32.00000   357%     -    6s
H    0     0                       8.0000000   32.00000   300%     -    7s
     0     0   32.00000    0  623    8.00000   32.00000   300%     -   13s
H    0     0                       9.0000000   32.00000   256%     -   13s
     0     0   32.00000    0  621    9.00000   32.00000   256%     -   14s
     0     0   32.00000    0  424    9.00000   32.00000   256%     -   29s
     0     0   32.00000    0  382    9.00000   32.00000   256%     -   29s
     0     0   32.00000    0  420    9.00000   32.00000   256%     -   43s
     0     0   32.00000    0  513    9.00000   32.00000   256%     -   45s
     0     0          -    0         9.00000   32.00000   256%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 1
  Cover: 17
  MIR: 115
  StrongCG: 2
  GUB cover: 5
  Zero half: 40
  RLT: 37

Explored 1 nodes (57369 simplex iterations) in 50.07 seconds (43.75 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 9 8 7 ... -0

Time limit reached
Best objective 9.000000000000e+00, best bound 3.200000000000e+01, gap 255.5556%

Wrote result file './lp_solutions/grafo6097.37.sol'

