
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:11:12 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7684.38.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/grafo7684.38.lp
Reading time = 0.84 seconds
: 514718 rows, 2525 columns, 1546542 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 514718 rows, 2525 columns and 1546542 nonzeros
Model fingerprint: 0xe4319b0d
Variable types: 50 continuous, 2475 integer (2475 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 257045 rows and 19 columns
Presolve time: 4.35s
Presolved: 257673 rows, 2506 columns, 775816 nonzeros
Variable types: 0 continuous, 2506 integer (2456 binary)
Root relaxation presolved: 2503 rows, 260176 columns, 778322 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    6.7720833e+02   0.000000e+00   9.758153e+05      6s
   30746    8.2774994e+01   0.000000e+00   1.774881e+05     10s
   51443    6.1944884e+01   0.000000e+00   1.674094e+05     15s
   71780    6.1873623e+01   0.000000e+00   1.674903e+05     20s
   95521    6.1843643e+01   0.000000e+00   2.114713e+04     25s
  118120    6.1831972e+01   0.000000e+00   5.203257e+03     30s
  142117    6.1826227e+01   0.000000e+00   3.601704e+03     35s
  164346    6.1824218e+01   0.000000e+00   8.784787e+01     40s
  177512    6.2000000e+01   0.000000e+00   0.000000e+00     43s
  177512    6.2000000e+01   0.000000e+00   0.000000e+00     43s
  177512    6.2000000e+01   0.000000e+00   0.000000e+00     43s

Root relaxation: objective 6.200000e+01, 177512 iterations, 38.17 seconds (27.65 work units)

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

     0     0   62.00000    0 1546          -   62.00000      -     -   50s
H    0     0                       2.0000000   62.00000  3000%     -   50s

Explored 1 nodes (179288 simplex iterations) in 50.08 seconds (39.38 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 2 

Time limit reached
Best objective 2.000000000000e+00, best bound 6.200000000000e+01, gap 3000.0000%

Wrote result file './lp_solutions/grafo7684.38.sol'

