
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:29:52 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7258.46.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/grafo7258.46.lp
Reading time = 0.68 seconds
: 395949 rows, 3673 columns, 1191542 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 395949 rows, 3673 columns and 1191542 nonzeros
Model fingerprint: 0x0da7cb47
Variable types: 63 continuous, 3610 integer (3610 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]
Found heuristic solution: objective 1.0000000
Presolve removed 156089 rows and 10 columns
Presolve time: 2.84s
Presolved: 239860 rows, 3663 columns, 723851 nonzeros
Variable types: 0 continuous, 3663 integer (3600 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 3634 rows, 243494 columns, 727514 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    7545    1.8403098e+02   0.000000e+00   9.788836e+05      5s
   25470    1.4028076e+02   0.000000e+00   5.974476e+05     11s
   36947    1.2525323e+02   0.000000e+00   4.872171e+05     16s
   46363    1.1549374e+02   0.000000e+00   1.492859e+05     20s
   58750    9.5455543e+01   0.000000e+00   9.679742e+05     25s
   69922    8.2912593e+01   0.000000e+00   1.704022e+05     30s
   82669    7.6867274e+01   0.000000e+00   2.476017e+05     35s
   95158    7.4838884e+01   0.000000e+00   1.348341e+05     40s
  107194    7.4821887e+01   0.000000e+00   2.598339e+05     45s

Root relaxation: time limit, 118924 iterations, 46.80 seconds (34.15 work units)

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

     0     0          -    0         9.00000  451.00000  4911%     -   50s

Explored 1 nodes (118924 simplex iterations) in 50.04 seconds (37.40 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 1 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.510000000000e+02, gap 4911.1111%

Wrote result file './lp_solutions/grafo7258.46.sol'

