
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:46:28 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5496.44.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/grafo5496.44.lp
Reading time = 0.44 seconds
: 238675 rows, 2923 columns, 718784 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 238675 rows, 2923 columns and 718784 nonzeros
Model fingerprint: 0xcdae7ba3
Variable types: 55 continuous, 2868 integer (2868 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 3.0000000
Presolve removed 85955 rows and 32 columns
Presolve time: 2.52s
Presolved: 152720 rows, 2891 columns, 461450 nonzeros
Variable types: 0 continuous, 2891 integer (2836 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 2888 rows, 155608 columns, 464341 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    8844    9.6295682e+01   0.000000e+00   8.346888e+05      5s
   24775    5.2757490e+01   0.000000e+00   1.189567e+05     10s
   38849    5.2687484e+01   0.000000e+00   9.167777e+04     15s
   52838    5.2657509e+01   0.000000e+00   2.652214e+04     20s
   67490    5.2641526e+01   0.000000e+00   1.802108e+04     25s
   81476    5.2634723e+01   0.000000e+00   1.012170e+04     30s
   94796    5.2631393e+01   0.000000e+00   9.919723e+02     35s
  108116    5.2630488e+01   0.000000e+00   3.404587e+01     40s
  109202    5.3000000e+01   0.000000e+00   0.000000e+00     41s
  109202    5.3000000e+01   0.000000e+00   0.000000e+00     41s
  109202    5.3000000e+01   0.000000e+00   0.000000e+00     41s

Root relaxation: objective 5.300000e+01, 109202 iterations, 37.88 seconds (22.82 work units)

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

     0     0   53.00000    0 1683   13.00000   53.00000   308%     -   50s

Explored 1 nodes (112907 simplex iterations) in 50.06 seconds (33.26 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 13 3 

Time limit reached
Best objective 1.300000000000e+01, best bound 5.300000000000e+01, gap 307.6923%

Wrote result file './lp_solutions/grafo5496.44.sol'

