
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 06:03:22 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6510.49.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/grafo6510.49.lp
Reading time = 0.57 seconds
: 300649 rows, 2903 columns, 904318 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 300649 rows, 2903 columns and 904318 nonzeros
Model fingerprint: 0xa2596aa2
Variable types: 51 continuous, 2852 integer (2852 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 118845 rows and 33 columns
Presolve time: 3.05s
Presolved: 181804 rows, 2870 columns, 548163 nonzeros
Variable types: 0 continuous, 2870 integer (2819 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2867 rows, 184671 columns, 551033 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    5914    1.2535368e+02   0.000000e+00   1.659325e+06      5s
   29031    4.7946275e+01   0.000000e+00   2.819522e+05     10s
   42971    4.4803617e+01   0.000000e+00   8.648072e+04     15s
   59017    4.4723360e+01   0.000000e+00   2.316010e+05     20s
   73385    4.4696849e+01   0.000000e+00   1.027917e+04     25s
   88505    4.4684566e+01   0.000000e+00   2.495232e+04     30s
  103625    4.4677640e+01   0.000000e+00   7.657312e+03     35s
  119508    4.4674611e+01   0.000000e+00   9.820663e+02     40s
  131048    4.5000000e+01   0.000000e+00   0.000000e+00     44s
  131048    4.5000000e+01   0.000000e+00   0.000000e+00     44s
  131048    4.5000000e+01   0.000000e+00   0.000000e+00     44s

Root relaxation: objective 4.500000e+01, 131048 iterations, 40.64 seconds (24.37 work units)

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

     0     0   45.00000    0 1757   10.00000   45.00000   350%     -   50s

Explored 1 nodes (132697 simplex iterations) in 50.07 seconds (32.45 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 10 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.500000000000e+01, gap 350.0000%

Wrote result file './lp_solutions/grafo6510.49.sol'

