
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:11:12 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5152.39.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/grafo5152.39.lp
Reading time = 0.13 seconds
: 79779 rows, 1996 columns, 240945 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 79779 rows, 1996 columns and 240945 nonzeros
Model fingerprint: 0xfd447c07
Variable types: 44 continuous, 1952 integer (1952 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 1.0000000
Presolve removed 19847 rows and 34 columns
Presolve time: 0.58s
Presolved: 59932 rows, 1962 columns, 181819 nonzeros
Variable types: 0 continuous, 1962 integer (1918 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1962 rows, 61894 columns, 183781 nonzeros


Root relaxation: objective 4.000000e+01, 2119 iterations, 0.46 seconds (0.50 work units)
Total elapsed time = 6.77s (DegenMoves)

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

     0     0   40.00000    0  544    9.00000   40.00000   344%     -    7s
H    0     0                      10.0000000   40.00000   300%     -    7s
     0     0   40.00000    0  697   10.00000   40.00000   300%     -   16s
     0     0   40.00000    0  664   10.00000   40.00000   300%     -   17s
H    0     0                      11.0000000   40.00000   264%     -   43s
     0     0   40.00000    0  681   11.00000   40.00000   264%     -   43s
     0     0   40.00000    0  655   11.00000   40.00000   264%     -   48s

Cutting planes:
  Gomory: 2
  Lift-and-project: 1
  Cover: 33
  Clique: 7
  MIR: 144
  StrongCG: 1
  GUB cover: 4
  Zero half: 72
  RLT: 59

Explored 1 nodes (40388 simplex iterations) in 50.13 seconds (46.06 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 11 10 9 1 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.000000000000e+01, gap 263.6364%

Wrote result file './lp_solutions/grafo5152.39.sol'

