
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:41:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6851.49.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/grafo6851.49.lp
Reading time = 0.23 seconds
: 133897 rows, 3184 columns, 404513 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 133897 rows, 3184 columns and 404513 nonzeros
Model fingerprint: 0xaf1f8a53
Variable types: 57 continuous, 3127 integer (3127 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 22353 rows and 1 columns
Presolve time: 0.96s
Presolved: 111544 rows, 3183 columns, 337915 nonzeros
Variable types: 0 continuous, 3183 integer (3126 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 3147 rows, 114691 columns, 341098 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18668    6.0006731e+01   0.000000e+00   1.539848e+05      5s
   33926    5.9971815e+01   0.000000e+00   4.161772e+04     10s
   48980    5.9954301e+01   0.000000e+00   9.450678e+04     15s
   63572    5.9944663e+01   0.000000e+00   8.605372e+04     20s
   77755    5.9939136e+01   0.000000e+00   6.506112e+03     25s
   90898    5.9935768e+01   0.000000e+00   9.402297e+03     30s
  104274    5.9934079e+01   0.000000e+00   2.846893e+03     35s
  117957    5.9933486e+01   0.000000e+00   1.366337e+03     40s
  124761    6.0000000e+01   0.000000e+00   0.000000e+00     42s
  124761    6.0000000e+01   0.000000e+00   0.000000e+00     43s
  124761    6.0000000e+01   0.000000e+00   0.000000e+00     43s

Root relaxation: objective 6.000000e+01, 124761 iterations, 41.35 seconds (33.02 work units)

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

     0     0   60.00000    0 1966    7.00000   60.00000   757%     -   50s

Explored 1 nodes (127428 simplex iterations) in 50.04 seconds (41.22 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 6.000000000000e+01, gap 757.1429%

Wrote result file './lp_solutions/grafo6851.49.sol'

