
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:37:10 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3603.44.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/grafo3603.44.lp
Reading time = 0.99 seconds
: 501450 rows, 3577 columns, 1508080 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 501450 rows, 3577 columns and 1508080 nonzeros
Model fingerprint: 0x042e7ea8
Variable types: 62 continuous, 3515 integer (3515 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 214226 rows and 14 columns
Presolve time: 4.44s
Presolved: 287224 rows, 3563 columns, 865877 nonzeros
Variable types: 0 continuous, 3563 integer (3501 binary)
Root relaxation presolved: 3553 rows, 290777 columns, 869440 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    1.1594800e+03   0.000000e+00   1.123109e+06      7s
   19940    1.8580766e+02   0.000000e+00   1.077788e+06     10s
   36419    1.5507913e+02   0.000000e+00   1.443145e+06     16s
   47282    1.2966008e+02   0.000000e+00   3.244193e+05     20s
   57508    1.1533695e+02   0.000000e+00   5.695587e+06     25s
   69073    8.6930337e+01   0.000000e+00   5.546680e+05     31s
   79158    8.0865638e+01   0.000000e+00   1.853914e+06     35s
   89936    7.0816402e+01   0.000000e+00   9.910703e+05     40s
  100852    7.0774131e+01   0.000000e+00   1.695456e+05     45s

Root relaxation: time limit, 0 iterations, 44.67 seconds (26.22 work units)

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

H    0     0                       3.0000000  506.00000      -     -   50s

Explored 1 nodes (0 simplex iterations) in 50.11 seconds (30.53 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 3 

Time limit reached
Best objective 3.000000000000e+00, best bound 5.060000000000e+02, gap 16766.6667%

Wrote result file './lp_solutions/grafo3603.44.sol'

