
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:09:22 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4024.42.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/grafo4024.42.lp
Reading time = 0.51 seconds
: 194143 rows, 2720 columns, 584979 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 194143 rows, 2720 columns and 584979 nonzeros
Model fingerprint: 0x46c0095f
Variable types: 52 continuous, 2668 integer (2668 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 69798 rows and 25 columns
Presolve time: 2.16s
Presolved: 124345 rows, 2695 columns, 375992 nonzeros
Variable types: 0 continuous, 2695 integer (2643 binary)
Root relaxation presolved: 2688 rows, 127033 columns, 378687 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    7162    1.2328283e+02   0.000000e+00   7.327923e+05      5s
   22298    5.9781170e+01   0.000000e+00   6.625847e+05     10s
   34030    5.6702973e+01   0.000000e+00   1.591858e+05     15s
   50313    5.6659529e+01   0.000000e+00   1.379717e+04     20s
   66588    5.6648077e+01   0.000000e+00   2.773264e+03     25s
   81813    5.6644323e+01   0.000000e+00   7.868035e+02     30s
   91608    5.7000000e+01   0.000000e+00   0.000000e+00     33s
   91608    5.7000000e+01   0.000000e+00   0.000000e+00     33s
   91608    5.7000000e+01   0.000000e+00   0.000000e+00     33s

Root relaxation: objective 5.700000e+01, 91608 iterations, 30.64 seconds (16.87 work units)

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

     0     0   57.00000    0 1499          -   57.00000      -     -   50s
H    0     0                       6.0000000   57.00000   850%     -   50s

Explored 1 nodes (99855 simplex iterations) in 50.06 seconds (32.91 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 5.700000000000e+01, gap 850.0000%

Wrote result file './lp_solutions/grafo4024.42.sol'

