
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:16:58 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6363.48.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/grafo6363.48.lp
Reading time = 0.22 seconds
: 132705 rows, 3076 columns, 400922 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 132705 rows, 3076 columns and 400922 nonzeros
Model fingerprint: 0xe4826c9f
Variable types: 57 continuous, 3019 integer (3019 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]
Presolve removed 22099 rows and 2 columns
Presolve time: 0.83s
Presolved: 110606 rows, 3074 columns, 335021 nonzeros
Variable types: 0 continuous, 3074 integer (3017 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 3029 rows, 113635 columns, 338095 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16603    4.4992239e+01   0.000000e+00   9.334824e+05      5s
   32682    4.4975568e+01   0.000000e+00   8.819340e+04     10s
   48222    4.4966685e+01   0.000000e+00   8.451518e+03     15s
   63762    4.4960643e+01   0.000000e+00   3.331338e+04     20s
   78858    4.4957049e+01   0.000000e+00   5.661401e+03     25s
   93510    4.4954854e+01   0.000000e+00   2.910672e+03     30s
  107718    4.4953738e+01   0.000000e+00   2.365404e+03     35s
  122370    4.4953243e+01   0.000000e+00   1.994793e+03     40s
  137466    4.4953033e+01   0.000000e+00   6.185407e-01     45s
  137908    4.5000000e+01   0.000000e+00   0.000000e+00     45s
  137908    4.5000000e+01   0.000000e+00   0.000000e+00     45s
  137908    4.5000000e+01   0.000000e+00   0.000000e+00     45s

Root relaxation: objective 4.500000e+01, 137908 iterations, 44.26 seconds (32.39 work units)

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

     0     0   45.00000    0 1762    9.00000   45.00000   400%     -   50s

Explored 1 nodes (139387 simplex iterations) in 50.04 seconds (38.09 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.500000000000e+01, gap 400.0000%

Wrote result file './lp_solutions/grafo6363.48.sol'

