
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:45:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6297.45.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/grafo6297.45.lp
Reading time = 0.20 seconds
: 127373 rows, 2990 columns, 384911 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 127373 rows, 2990 columns and 384911 nonzeros
Model fingerprint: 0x1840b227
Variable types: 56 continuous, 2934 integer (2934 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 25379 rows and 19 columns
Presolve time: 0.83s
Presolved: 101994 rows, 2971 columns, 309400 nonzeros
Variable types: 0 continuous, 2971 integer (2915 binary)
Root relaxation presolved: 2948 rows, 104942 columns, 312371 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18787    5.5942578e+01   0.000000e+00   7.475089e+04      5s
   37137    5.5917646e+01   0.000000e+00   3.664583e+04     10s
   54254    5.5907845e+01   0.000000e+00   1.225240e+04     15s
   71038    5.5903209e+01   0.000000e+00   1.502355e+04     20s
   88314    5.5900990e+01   0.000000e+00   1.143948e+03     25s
  105369    5.5900254e+01   0.000000e+00   2.065554e+02     30s
  112768    5.6000000e+01   0.000000e+00   0.000000e+00     32s
  112768    5.6000000e+01   0.000000e+00   0.000000e+00     32s
  112768    5.6000000e+01   0.000000e+00   0.000000e+00     32s

Root relaxation: objective 5.600000e+01, 112768 iterations, 31.07 seconds (27.07 work units)

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

     0     0   56.00000    0 1945          -   56.00000      -     -   50s
H    0     0                       3.0000000   56.00000  1767%     -   50s

Explored 1 nodes (121332 simplex iterations) in 50.05 seconds (45.09 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/grafo6297.45.sol'

