
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:49:52 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5900.46.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/grafo5900.46.lp
Reading time = 0.49 seconds
: 256990 rows, 3018 columns, 773700 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 256990 rows, 3018 columns and 773700 nonzeros
Model fingerprint: 0x6a92274d
Variable types: 54 continuous, 2964 integer (2964 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 -0.0000000
Presolve removed 95523 rows and 10 columns
Presolve time: 2.17s
Presolved: 161467 rows, 3008 columns, 487682 nonzeros
Variable types: 0 continuous, 3008 integer (2954 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 3000 rows, 164467 columns, 490690 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   11885    8.3619995e+01   0.000000e+00   2.587515e+05      5s
   26873    5.7821875e+01   0.000000e+00   6.509148e+05     10s
   40960    5.1730897e+01   0.000000e+00   3.136233e+05     15s
   56281    5.1687068e+01   0.000000e+00   5.850777e+04     20s
   70267    5.1671625e+01   0.000000e+00   7.706470e+04     25s
   84919    5.1664043e+01   0.000000e+00   1.094793e+04     30s
   98239    5.1660652e+01   0.000000e+00   3.270067e+03     35s
  112891    5.1659159e+01   0.000000e+00   8.752467e+02     40s
  120993    5.2000000e+01   0.000000e+00   0.000000e+00     43s
  120993    5.2000000e+01   0.000000e+00   0.000000e+00     43s
  120993    5.2000000e+01   0.000000e+00   0.000000e+00     43s

Root relaxation: objective 5.200000e+01, 120993 iterations, 40.92 seconds (23.85 work units)

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

     0     0   52.00000    0 1711   13.00000   52.00000   300%     -   50s

Explored 1 nodes (122792 simplex iterations) in 50.07 seconds (32.10 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 13 -0 

Time limit reached
Best objective 1.300000000000e+01, best bound 5.200000000000e+01, gap 300.0000%

Wrote result file './lp_solutions/grafo5900.46.sol'

