
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:27:52 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6303.45.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/grafo6303.45.lp
Reading time = 0.57 seconds
: 287776 rows, 2854 columns, 865921 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 287776 rows, 2854 columns and 865921 nonzeros
Model fingerprint: 0x9bca4b38
Variable types: 52 continuous, 2802 integer (2802 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 122309 rows and 26 columns
Presolve time: 2.62s
Presolved: 165467 rows, 2828 columns, 499492 nonzeros
Variable types: 0 continuous, 2828 integer (2776 binary)
Root relaxation presolved: 2828 rows, 168295 columns, 502320 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    7954    1.0519597e+02   0.000000e+00   1.280871e+06      5s
   25136    6.2937279e+01   0.000000e+00   4.827712e+05     10s
   41094    5.0799363e+01   0.000000e+00   1.055401e+05     15s
   56168    5.0737708e+01   0.000000e+00   1.089991e+05     20s
   71216    5.0715940e+01   0.000000e+00   2.981069e+04     25s
   86948    5.0706876e+01   0.000000e+00   2.432062e+03     30s
  102680    5.0703160e+01   0.000000e+00   2.283104e+03     35s
  113100    5.1000000e+01   0.000000e+00   0.000000e+00     38s
  113100    5.1000000e+01   0.000000e+00   0.000000e+00     39s

Root relaxation: objective 5.100000e+01, 113100 iterations, 35.40 seconds (20.97 work units)

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

     0     0   51.00000    0 1624          -   51.00000      -     -   50s
H    0     0                       6.0000000   51.00000   750%     -   50s

Explored 1 nodes (117637 simplex iterations) in 50.11 seconds (33.21 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 5.100000000000e+01, gap 750.0000%

Wrote result file './lp_solutions/grafo6303.45.sol'

