
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:18:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6489.48.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/grafo6489.48.lp
Reading time = 0.46 seconds
: 270339 rows, 3454 columns, 814310 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 270339 rows, 3454 columns and 814310 nonzeros
Model fingerprint: 0x7a1b0dbc
Variable types: 60 continuous, 3394 integer (3394 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 2.0000000
Presolve removed 92070 rows and 12 columns
Presolve time: 1.96s
Presolved: 178269 rows, 3442 columns, 538590 nonzeros
Variable types: 0 continuous, 3442 integer (3382 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 3424 rows, 181693 columns, 542032 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   12789    1.0914725e+02   0.000000e+00   2.148845e+05      5s
   27326    7.0879585e+01   0.000000e+00   2.987924e+06     10s
   40735    6.9772369e+01   0.000000e+00   1.367129e+05     15s
   53995    6.9726303e+01   0.000000e+00   6.193898e+04     20s
   67255    6.9708339e+01   0.000000e+00   7.412834e+03     25s
   79852    6.9699777e+01   0.000000e+00   1.357014e+04     30s
   91786    6.9695963e+01   0.000000e+00   1.305147e+03     35s
  103720    6.9694442e+01   0.000000e+00   2.710412e+02     40s
  105374    7.0000000e+01   0.000000e+00   0.000000e+00     41s
  105374    7.0000000e+01   0.000000e+00   0.000000e+00     41s
  105374    7.0000000e+01   0.000000e+00   0.000000e+00     41s

Root relaxation: objective 7.000000e+01, 105374 iterations, 38.85 seconds (26.79 work units)

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

     0     0   70.00000    0 1806   13.00000   70.00000   438%     -   50s

Explored 1 nodes (107632 simplex iterations) in 50.06 seconds (37.94 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 13 2 

Time limit reached
Best objective 1.300000000000e+01, best bound 7.000000000000e+01, gap 438.4615%

Wrote result file './lp_solutions/grafo6489.48.sol'

