
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:57:06 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7288.45.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/grafo7288.45.lp
Reading time = 0.22 seconds
: 141268 rows, 3044 columns, 426649 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 141268 rows, 3044 columns and 426649 nonzeros
Model fingerprint: 0x232e12c2
Variable types: 57 continuous, 2987 integer (2987 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, 6e+01]
Found heuristic solution: objective -0.0000000
Presolve removed 31652 rows and 0 columns
Presolve time: 0.80s
Presolved: 109616 rows, 3044 columns, 332214 nonzeros
Variable types: 0 continuous, 3044 integer (2987 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 3011 rows, 112627 columns, 335258 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18793    6.6979456e+01   0.000000e+00   1.265515e+05      5s
   35564    6.6950599e+01   0.000000e+00   1.879169e+05     10s
   52081    6.6938009e+01   0.000000e+00   2.733679e+04     15s
   68510    6.6930735e+01   0.000000e+00   4.464728e+03     20s
   84603    6.6926410e+01   0.000000e+00   1.069192e+04     25s
  100867    6.6924131e+01   0.000000e+00   1.598901e+03     30s
  117739    6.6923379e+01   0.000000e+00   2.552687e+00     35s
  118554    6.7000000e+01   0.000000e+00   0.000000e+00     35s
  118554    6.7000000e+01   0.000000e+00   0.000000e+00     35s
  118554    6.7000000e+01   0.000000e+00   0.000000e+00     35s

Root relaxation: objective 6.700000e+01, 118554 iterations, 34.47 seconds (30.85 work units)

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

     0     0   67.00000    0 2051    6.00000   67.00000  1017%     -   50s

Explored 1 nodes (125835 simplex iterations) in 50.04 seconds (46.68 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 6 -0 

Time limit reached
Best objective 6.000000000000e+00, best bound 6.700000000000e+01, gap 1016.6667%

Wrote result file './lp_solutions/grafo7288.45.sol'

