
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:32:59 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7443.42.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/grafo7443.42.lp
Reading time = 0.48 seconds
: 249289 rows, 2688 columns, 750350 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 249289 rows, 2688 columns and 750350 nonzeros
Model fingerprint: 0x936daf62
Variable types: 52 continuous, 2636 integer (2636 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 98657 rows and 11 columns
Presolve time: 2.10s
Presolved: 150632 rows, 2677 columns, 454704 nonzeros
Variable types: 0 continuous, 2677 integer (2625 binary)
Root relaxation presolved: 2666 rows, 153298 columns, 457381 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   10382    1.0826636e+02   0.000000e+00   5.172801e+05      5s
   28708    6.4945517e+01   0.000000e+00   1.220736e+05     10s
   44130    5.6842371e+01   0.000000e+00   4.070110e+05     15s
   59478    5.6794957e+01   0.000000e+00   2.067238e+04     20s
   76104    5.6776946e+01   0.000000e+00   1.488874e+05     25s
   92070    5.6769575e+01   0.000000e+00   1.098457e+04     30s
  108719    5.6766766e+01   0.000000e+00   3.438749e+01     35s
  112066    5.7000000e+01   0.000000e+00   0.000000e+00     36s
  112066    5.7000000e+01   0.000000e+00   0.000000e+00     36s
  112066    5.7000000e+01   0.000000e+00   0.000000e+00     36s

Root relaxation: objective 5.700000e+01, 112066 iterations, 33.68 seconds (20.23 work units)

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

     0     0   57.00000    0 1525          -   57.00000      -     -   50s
H    0     0                       2.0000000   57.00000  2750%     -   50s

Explored 1 nodes (117084 simplex iterations) in 50.09 seconds (34.32 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 2 

Time limit reached
Best objective 2.000000000000e+00, best bound 5.700000000000e+01, gap 2750.0000%

Wrote result file './lp_solutions/grafo7443.42.sol'

