
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:48:11 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5873.46.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/grafo5873.46.lp
Reading time = 0.51 seconds
: 263522 rows, 2757 columns, 792901 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 263522 rows, 2757 columns and 792901 nonzeros
Model fingerprint: 0x4b43dbe1
Variable types: 50 continuous, 2707 integer (2707 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 113074 rows and 24 columns
Presolve time: 2.46s
Presolved: 150448 rows, 2733 columns, 454203 nonzeros
Variable types: 0 continuous, 2733 integer (2683 binary)
Root relaxation presolved: 2730 rows, 153178 columns, 456936 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    9169    1.0153277e+02   0.000000e+00   2.552398e+05      5s
   26893    5.2857040e+01   0.000000e+00   1.167385e+05     10s
   42445    5.2804200e+01   0.000000e+00   1.100447e+04     15s
   55405    5.2793644e+01   0.000000e+00   4.238513e+03     20s
   66397    5.3000000e+01   0.000000e+00   0.000000e+00     24s
   66397    5.3000000e+01   0.000000e+00   0.000000e+00     24s
   66397    5.3000000e+01   0.000000e+00   0.000000e+00     24s

Root relaxation: objective 5.300000e+01, 66397 iterations, 21.04 seconds (12.42 work units)
Total elapsed time = 44.89s (DegenMoves)
Total elapsed time = 48.59s (DegenMoves)

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

     0     0   53.00000    0  593          -   53.00000      -     -   50s
H    0     0                       3.0000000   53.00000  1667%     -   50s

Explored 1 nodes (80018 simplex iterations) in 50.09 seconds (40.02 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 3 

Time limit reached
Best objective 3.000000000000e+00, best bound 5.300000000000e+01, gap 1666.6667%

Wrote result file './lp_solutions/grafo5873.46.sol'

