
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:48:22 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7264.39.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/grafo7264.39.lp
Reading time = 0.17 seconds
: 105964 rows, 2082 columns, 319596 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 105964 rows, 2082 columns and 319596 nonzeros
Model fingerprint: 0x9a7035dd
Variable types: 45 continuous, 2037 integer (2037 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 3.0000000
Presolve removed 33913 rows and 23 columns
Presolve time: 0.83s
Presolved: 72051 rows, 2059 columns, 218136 nonzeros
Variable types: 0 continuous, 2059 integer (2014 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2059 rows, 74110 columns, 220195 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26699    5.3759108e+01   0.000000e+00   1.259885e+02      5s
   27250    5.4000000e+01   0.000000e+00   0.000000e+00      5s
   27250    5.4000000e+01   0.000000e+00   0.000000e+00      5s

Root relaxation: objective 5.400000e+01, 27250 iterations, 4.21 seconds (3.58 work units)
Total elapsed time = 16.13s (DegenMoves)

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

     0     0   54.00000    0  740    6.00000   54.00000   800%     -   20s
H    0     0                      10.0000000   54.00000   440%     -   20s
     0     0   54.00000    0  962   10.00000   54.00000   440%     -   38s
     0     0   54.00000    0  911   10.00000   54.00000   440%     -   41s
     0     0          -    0        10.00000   54.00000   440%     -   50s

Cutting planes:
  Gomory: 5
  Cover: 15
  Clique: 31
  MIR: 178
  GUB cover: 2
  Zero half: 66
  RLT: 99
  BQP: 8

Explored 1 nodes (55196 simplex iterations) in 50.13 seconds (47.83 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 6 3 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.400000000000e+01, gap 440.0000%

Wrote result file './lp_solutions/grafo7264.39.sol'

