
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 05:27:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6203.42.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/grafo6203.42.lp
Reading time = 0.19 seconds
: 118614 rows, 2928 columns, 358715 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 118614 rows, 2928 columns and 358715 nonzeros
Model fingerprint: 0x66d949c8
Variable types: 58 continuous, 2870 integer (2870 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 20458 rows and 0 columns
Presolve time: 0.64s
Presolved: 98156 rows, 2928 columns, 297802 nonzeros
Variable types: 0 continuous, 2928 integer (2870 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 2889 rows, 101045 columns, 300730 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18298    6.6960804e+01   0.000000e+00   4.276304e+04      5s
   36293    6.6936805e+01   0.000000e+00   4.086324e+04     10s
   53094    6.6925908e+01   0.000000e+00   2.168796e+05     15s
   70148    6.6918505e+01   0.000000e+00   5.125235e+04     20s
   88478    6.6913409e+01   0.000000e+00   3.348618e+03     25s
  107098    6.6910194e+01   0.000000e+00   1.345189e+03     30s
  126229    6.6908073e+01   0.000000e+00   5.534298e+03     35s
  145283    6.6906991e+01   0.000000e+00   5.552019e+02     40s
  164544    6.6906738e+01   0.000000e+00   6.253865e-01     45s
  166360    6.7000000e+01   0.000000e+00   0.000000e+00     45s
  166360    6.7000000e+01   0.000000e+00   0.000000e+00     46s
  166360    6.7000000e+01   0.000000e+00   0.000000e+00     46s

Root relaxation: objective 6.700000e+01, 166360 iterations, 44.70 seconds (37.64 work units)

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

     0     0   67.00000    0 2196    4.00000   67.00000  1575%     -   50s

Explored 1 nodes (167864 simplex iterations) in 50.03 seconds (43.42 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 4 

Time limit reached
Best objective 4.000000000000e+00, best bound 6.700000000000e+01, gap 1575.0000%

Wrote result file './lp_solutions/grafo6203.42.sol'

