
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:10:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7494.44.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/grafo7494.44.lp
Reading time = 0.30 seconds
: 164460 rows, 2686 columns, 495735 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 164460 rows, 2686 columns and 495735 nonzeros
Model fingerprint: 0xa5dde80d
Variable types: 51 continuous, 2635 integer (2635 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]
Presolve removed 52849 rows and 21 columns
Presolve time: 1.57s
Presolved: 111611 rows, 2665 columns, 337692 nonzeros
Variable types: 0 continuous, 2665 integer (2614 binary)
Root relaxation presolved: 2665 rows, 114276 columns, 340357 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14324    7.0039987e+01   0.000000e+00   3.196744e+05      5s
   30136    5.5826930e+01   0.000000e+00   7.072523e+04     10s
   45816    5.5783000e+01   0.000000e+00   1.543070e+04     15s
   61986    5.5771206e+01   0.000000e+00   2.772026e+03     20s
   76660    5.6000000e+01   0.000000e+00   0.000000e+00     25s
   76660    5.6000000e+01   0.000000e+00   0.000000e+00     25s

Root relaxation: objective 5.600000e+01, 76660 iterations, 23.24 seconds (13.60 work units)

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

     0     0   56.00000    0 1370          -   56.00000      -     -   50s
H    0     0                       3.0000000   56.00000  1767%     -   50s

Explored 1 nodes (89298 simplex iterations) in 50.04 seconds (35.28 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 3 

Time limit reached
Best objective 3.000000000000e+00, best bound 5.600000000000e+01, gap 1766.6667%

Wrote result file './lp_solutions/grafo7494.44.sol'

