
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:14:34 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo9896.38.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/grafo9896.38.lp
Reading time = 0.14 seconds
: 85306 rows, 1937 columns, 257516 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 85306 rows, 1937 columns and 257516 nonzeros
Model fingerprint: 0x68718974
Variable types: 42 continuous, 1895 integer (1895 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 24916 rows and 30 columns
Presolve time: 0.60s
Presolved: 60390 rows, 1907 columns, 183206 nonzeros
Variable types: 0 continuous, 1907 integer (1865 binary)
Root relaxation presolved: 1907 rows, 62297 columns, 185113 nonzeros


Root relaxation: objective 3.400000e+01, 1955 iterations, 0.47 seconds (0.48 work units)
Total elapsed time = 5.61s (DegenMoves)

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

     0     0   34.00000    0  472          -   34.00000      -     -    6s
H    0     0                       8.0000000   34.00000   325%     -    8s
H    0     0                      10.0000000   34.00000   240%     -    8s
     0     0   34.00000    0  538   10.00000   34.00000   240%     -   12s
     0     0   34.00000    0  503   10.00000   34.00000   240%     -   13s
H    0     0                      12.0000000   34.00000   183%     -   32s
     0     0   34.00000    0  477   12.00000   34.00000   183%     -   34s
     0     0   34.00000    0  436   12.00000   34.00000   183%     -   34s
     0     0   34.00000    0  496   12.00000   34.00000   183%     -   50s

Cutting planes:
  Cover: 28
  Clique: 26
  MIR: 82
  StrongCG: 3
  GUB cover: 3
  Zero half: 45
  RLT: 61
  BQP: 5

Explored 1 nodes (44342 simplex iterations) in 50.07 seconds (46.09 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 12 10 8 

Time limit reached
Best objective 1.200000000000e+01, best bound 3.400000000000e+01, gap 183.3333%

Wrote result file './lp_solutions/grafo9896.38.sol'

