
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 01:44:02 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7469.41.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/grafo7469.41.lp
Reading time = 0.48 seconds
: 241689 rows, 2912 columns, 727899 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 241689 rows, 2912 columns and 727899 nonzeros
Model fingerprint: 0x74c92fb9
Variable types: 56 continuous, 2856 integer (2856 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 1.0000000
Presolve removed 91016 rows and 24 columns
Presolve time: 2.06s
Presolved: 150673 rows, 2888 columns, 455344 nonzeros
Variable types: 0 continuous, 2888 integer (2832 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2882 rows, 153555 columns, 458232 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    9701    1.3313126e+02   0.000000e+00   4.357153e+06      5s
   25791    7.6994010e+01   0.000000e+00   1.885698e+05     10s
   39629    7.3895813e+01   0.000000e+00   1.858265e+05     15s
   52377    6.9856678e+01   0.000000e+00   7.454740e+04     20s
   61186    6.9840225e+01   0.000000e+00   5.087996e+04     25s
   70621    6.9827813e+01   0.000000e+00   3.166603e+04     30s
   81945    6.9817517e+01   0.000000e+00   1.697268e+04     35s
   95787    6.9809420e+01   0.000000e+00   9.812223e+03     40s
  108996    6.9804255e+01   0.000000e+00   3.802650e+03     45s

Root relaxation: time limit, 121098 iterations, 47.64 seconds (25.47 work units)

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

     0     0          -    0         6.00000  352.00000  5767%     -   50s

Explored 1 nodes (121098 simplex iterations) in 50.03 seconds (27.55 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 6 1 

Time limit reached
Best objective 6.000000000000e+00, best bound 3.520000000000e+02, gap 5766.6667%

Wrote result file './lp_solutions/grafo7469.41.sol'

