
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:47:18 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5554.44.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/grafo5554.44.lp
Reading time = 0.68 seconds
: 354181 rows, 2968 columns, 1065298 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 354181 rows, 2968 columns and 1065298 nonzeros
Model fingerprint: 0xbac4bbbb
Variable types: 53 continuous, 2915 integer (2915 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]
Found heuristic solution: objective 7.0000000
Presolve removed 153840 rows and 11 columns
Presolve time: 3.03s
Presolved: 200341 rows, 2957 columns, 604121 nonzeros
Variable types: 0 continuous, 2957 integer (2904 binary)
Found heuristic solution: objective 18.0000000
Root relaxation presolved: 2954 rows, 203295 columns, 607078 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    5486    2.3102855e+02   0.000000e+00   8.680047e+05      5s
   28901    1.1559499e+02   0.000000e+00   1.414505e+05     11s
   43299    8.0996209e+01   0.000000e+00   3.876743e+05     15s
   57417    6.9431939e+01   0.000000e+00   2.669510e+05     20s
   71445    6.4860627e+01   0.000000e+00   2.809435e+06     25s
   85926    6.4811760e+01   0.000000e+00   1.919281e+04     30s
  100394    6.4793928e+01   0.000000e+00   1.594035e+04     35s
  115714    6.4783476e+01   0.000000e+00   1.021023e+04     40s
  131033    6.4778350e+01   0.000000e+00   3.362497e+03     45s

Root relaxation: time limit, 145824 iterations, 46.59 seconds (28.44 work units)

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

     0     0          -    0        18.00000  436.00000  2322%     -   50s

Explored 1 nodes (145824 simplex iterations) in 50.04 seconds (31.36 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 18 7 

Time limit reached
Best objective 1.800000000000e+01, best bound 4.360000000000e+02, gap 2322.2222%

Wrote result file './lp_solutions/grafo5554.44.sol'

