
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:49:52 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7702.48.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/grafo7702.48.lp
Reading time = 0.51 seconds
: 268955 rows, 3586 columns, 810313 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 268955 rows, 3586 columns and 810313 nonzeros
Model fingerprint: 0x4d100e8a
Variable types: 61 continuous, 3525 integer (3525 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 90343 rows and 6 columns
Presolve time: 2.25s
Presolved: 178612 rows, 3580 columns, 539794 nonzeros
Variable types: 0 continuous, 3580 integer (3519 binary)
Root relaxation presolved: 3568 rows, 182180 columns, 543374 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    6937    1.7874909e+02   0.000000e+00   9.344048e+06      5s
   21661    1.1982237e+02   0.000000e+00   1.302503e+06     10s
   33118    9.2317230e+01   0.000000e+00   1.834397e+06     15s
   44376    8.4743576e+01   0.000000e+00   3.852839e+05     20s
   55358    8.0692764e+01   0.000000e+00   2.779442e+05     25s
   66285    7.9662860e+01   0.000000e+00   1.130899e+05     30s
   77174    7.9645172e+01   0.000000e+00   3.895373e+04     35s
   88054    7.9632265e+01   0.000000e+00   7.366357e+04     40s
   98256    7.9624035e+01   0.000000e+00   2.402746e+04     45s

Root relaxation: time limit, 0 iterations, 47.22 seconds (27.77 work units)

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

H    0     0                       2.0000000  407.00000      -     -   50s

Explored 1 nodes (0 simplex iterations) in 50.04 seconds (29.95 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 2 

Time limit reached
Best objective 2.000000000000e+00, best bound 4.070000000000e+02, gap 20250.0000%

Wrote result file './lp_solutions/grafo7702.48.sol'

