
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:30:25 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3626.49.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/grafo3626.49.lp
Reading time = 0.28 seconds
: 165202 rows, 2895 columns, 497916 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 165202 rows, 2895 columns and 497916 nonzeros
Model fingerprint: 0x1c52cff1
Variable types: 51 continuous, 2844 integer (2844 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 48955 rows and 18 columns
Presolve time: 1.28s
Presolved: 116247 rows, 2877 columns, 351435 nonzeros
Variable types: 0 continuous, 2877 integer (2826 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2877 rows, 119124 columns, 354312 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16416    6.6905443e+01   0.000000e+00   1.469023e+05      5s
   34903    6.2758247e+01   0.000000e+00   2.601745e+04     10s
   52700    6.2734166e+01   0.000000e+00   5.238757e+03     15s
   69535    6.2728259e+01   0.000000e+00   8.012629e+02     20s
   77590    6.3000000e+01   0.000000e+00   0.000000e+00     23s
   77590    6.3000000e+01   0.000000e+00   0.000000e+00     23s

Root relaxation: objective 6.300000e+01, 77590 iterations, 21.08 seconds (14.82 work units)

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

     0     0   63.00000    0 1532    5.00000   63.00000  1160%     -   50s

Explored 1 nodes (93063 simplex iterations) in 50.04 seconds (40.36 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 5 

Time limit reached
Best objective 5.000000000000e+00, best bound 6.300000000000e+01, gap 1160.0000%

Wrote result file './lp_solutions/grafo3626.49.sol'

