
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:49:02 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3829.43.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/grafo3829.43.lp
Reading time = 0.51 seconds
: 268789 rows, 3039 columns, 809334 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 268789 rows, 3039 columns and 809334 nonzeros
Model fingerprint: 0x577b8ca4
Variable types: 57 continuous, 2982 integer (2982 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]
Presolve removed 105368 rows and 38 columns
Presolve time: 2.74s
Presolved: 163421 rows, 3001 columns, 493871 nonzeros
Variable types: 0 continuous, 3001 integer (2944 binary)
Root relaxation presolved: 2998 rows, 166419 columns, 496872 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    6299    1.2433830e+02   0.000000e+00   3.771473e+06      5s
   22220    5.9874636e+01   0.000000e+00   3.211366e+06     10s
   35113    5.8771315e+01   0.000000e+00   7.888070e+05     15s
   49144    5.8699787e+01   0.000000e+00   6.875138e+04     20s
   62464    5.8674984e+01   0.000000e+00   8.200025e+04     25s
   75118    5.8663273e+01   0.000000e+00   6.774608e+04     30s
   87772    5.8657676e+01   0.000000e+00   1.644750e+03     35s
  100426    5.8655371e+01   0.000000e+00   2.406193e+02     40s
  107033    5.9000000e+01   0.000000e+00   0.000000e+00     43s
  107033    5.9000000e+01   0.000000e+00   0.000000e+00     43s
  107033    5.9000000e+01   0.000000e+00   0.000000e+00     43s

Root relaxation: objective 5.900000e+01, 107033 iterations, 39.47 seconds (22.71 work units)

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

     0     0   59.00000    0 1548          -   59.00000      -     -   50s
H    0     0                       3.0000000   59.00000  1867%     -   50s

Explored 1 nodes (108913 simplex iterations) in 50.10 seconds (31.69 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 3 

Time limit reached
Best objective 3.000000000000e+00, best bound 5.900000000000e+01, gap 1866.6667%

Wrote result file './lp_solutions/grafo3829.43.sol'

