
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:58:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6378.44.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/grafo6378.44.lp
Reading time = 0.30 seconds
: 186731 rows, 3179 columns, 563319 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 186731 rows, 3179 columns and 563319 nonzeros
Model fingerprint: 0xedbfee86
Variable types: 59 continuous, 3120 integer (3120 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 53919 rows and 10 columns
Presolve time: 1.19s
Presolved: 132812 rows, 3169 columns, 402018 nonzeros
Variable types: 0 continuous, 3169 integer (3110 binary)
Root relaxation presolved: 3161 rows, 135973 columns, 405187 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17172    9.2174943e+01   0.000000e+00   1.716938e+05      5s
   33171    7.4970957e+01   0.000000e+00   3.072613e+05     10s
   48776    7.3951642e+01   0.000000e+00   3.630076e+04     15s
   63114    7.3941366e+01   0.000000e+00   4.755044e+04     20s
   78606    7.3933400e+01   0.000000e+00   3.723598e+04     25s
   94165    7.3927601e+01   0.000000e+00   1.053335e+04     30s
  110089    7.3923722e+01   0.000000e+00   2.577505e+04     35s
  125385    7.3921155e+01   0.000000e+00   4.316424e+03     40s
  140146    7.3919548e+01   0.000000e+00   2.485915e+03     45s

Root relaxation: time limit, 0 iterations, 48.53 seconds (39.71 work units)

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

H    0     0                       2.0000000  320.00000      -     -   50s

Explored 1 nodes (0 simplex iterations) in 50.04 seconds (41.29 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 2 

Time limit reached
Best objective 2.000000000000e+00, best bound 3.200000000000e+02, gap 15900.0000%

Wrote result file './lp_solutions/grafo6378.44.sol'

