
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:35:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7118.45.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/grafo7118.45.lp
Reading time = 0.51 seconds
: 276871 rows, 3430 columns, 834007 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 276871 rows, 3430 columns and 834007 nonzeros
Model fingerprint: 0x19cd0444
Variable types: 61 continuous, 3369 integer (3369 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]
Found heuristic solution: objective -0.0000000
Presolve removed 96899 rows and 24 columns
Presolve time: 2.54s
Presolved: 179972 rows, 3406 columns, 543853 nonzeros
Variable types: 0 continuous, 3406 integer (3345 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 3400 rows, 183372 columns, 547259 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    8225    1.5623209e+02   0.000000e+00   9.490897e+06      5s
   25612    7.8023268e+01   0.000000e+00   6.398246e+05     10s
   36781    7.5985013e+01   0.000000e+00   1.136241e+05     15s
   49042    7.3966966e+01   0.000000e+00   2.322056e+05     20s
   60574    7.3957125e+01   0.000000e+00   5.610226e+05     25s
   72842    7.3949673e+01   0.000000e+00   1.360394e+05     30s
   84825    7.3944145e+01   0.000000e+00   4.171319e+04     35s
   95650    7.3939902e+01   0.000000e+00   9.211979e+04     40s
  106843    7.3935781e+01   0.000000e+00   1.280439e+05     45s

Root relaxation: time limit, 118355 iterations, 47.15 seconds (29.32 work units)

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

     0     0          -    0         8.00000  393.00000  4812%     -   50s

Explored 1 nodes (118355 simplex iterations) in 50.03 seconds (31.67 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 -0 

Time limit reached
Best objective 8.000000000000e+00, best bound 3.930000000000e+02, gap 4812.5000%

Wrote result file './lp_solutions/grafo7118.45.sol'

