
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 00:27:18 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3088.40.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/grafo3088.40.lp
Reading time = 0.61 seconds
: 321733 rows, 2763 columns, 967866 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 321733 rows, 2763 columns and 967866 nonzeros
Model fingerprint: 0x51246691
Variable types: 54 continuous, 2709 integer (2709 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]
Found heuristic solution: objective 1.0000000
Presolve removed 136998 rows and 27 columns
Presolve time: 3.44s
Presolved: 184735 rows, 2736 columns, 557400 nonzeros
Variable types: 0 continuous, 2736 integer (2682 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 2730 rows, 187465 columns, 560136 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    3664    1.9773793e+02   0.000000e+00   5.449392e+05      5s
   26052    8.5937470e+01   0.000000e+00   7.738874e+05     11s
   39559    7.1804093e+01   0.000000e+00   2.824216e+05     15s
   52863    6.5742988e+01   0.000000e+00   2.715415e+05     20s
   67173    6.1694502e+01   0.000000e+00   2.152730e+04     25s
   79845    6.1674452e+01   0.000000e+00   1.469969e+04     30s
   93309    6.1662921e+01   0.000000e+00   1.171761e+04     35s
  109941    6.1655613e+01   0.000000e+00   1.046126e+04     40s
  125781    6.1653435e+01   0.000000e+00   1.629080e+02     45s
  139870    6.2000000e+01   0.000000e+00   0.000000e+00     50s
  139870    6.2000000e+01   0.000000e+00   0.000000e+00     50s
  139870    6.2000000e+01   0.000000e+00   0.000000e+00     50s

Root relaxation: objective 6.200000e+01, 139870 iterations, 45.95 seconds (26.38 work units)

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

     0     0  postponed    0        11.00000   62.00000   464%     -   50s

Explored 1 nodes (139921 simplex iterations) in 50.06 seconds (29.43 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 1 

Time limit reached
Best objective 1.100000000000e+01, best bound 6.200000000000e+01, gap 463.6364%

Wrote result file './lp_solutions/grafo3088.40.sol'

