
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:59:27 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3617.39.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/grafo3617.39.lp
Reading time = 0.12 seconds
: 72715 rows, 1879 columns, 219629 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 72715 rows, 1879 columns and 219629 nonzeros
Model fingerprint: 0x2e71e0d3
Variable types: 42 continuous, 1837 integer (1837 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 19672 rows and 34 columns
Presolve time: 0.50s
Presolved: 53043 rows, 1845 columns, 161007 nonzeros
Variable types: 0 continuous, 1845 integer (1803 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1842 rows, 54885 columns, 162852 nonzeros


Root relaxation: objective 3.400000e+01, 1981 iterations, 0.44 seconds (0.46 work units)
Total elapsed time = 6.62s (DegenMoves)

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

     0     0   34.00000    0  590    9.00000   34.00000   278%     -   15s
H    0     0                      10.0000000   34.00000   240%     -   15s
     0     0   34.00000    0  718   10.00000   34.00000   240%     -   24s
     0     0   34.00000    0  688   10.00000   34.00000   240%     -   25s
     0     0   34.00000    0  257   10.00000   34.00000   240%     -   38s
     0     0   34.00000    0  256   10.00000   34.00000   240%     -   38s
     0     0   34.00000    0  315   10.00000   34.00000   240%     -   44s
     0     0   34.00000    0  290   10.00000   34.00000   240%     -   44s
     0     0   34.00000    0  457   10.00000   34.00000   240%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 27
  Clique: 8
  MIR: 99
  StrongCG: 1
  GUB cover: 4
  Zero half: 45
  RLT: 49

Explored 1 nodes (54174 simplex iterations) in 50.06 seconds (49.60 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 9 

Time limit reached
Best objective 1.000000000000e+01, best bound 3.400000000000e+01, gap 240.0000%

Wrote result file './lp_solutions/grafo3617.39.sol'

