
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:58:19 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6298.44.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/grafo6298.44.lp
Reading time = 0.67 seconds
: 338606 rows, 3175 columns, 1018934 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 338606 rows, 3175 columns and 1018934 nonzeros
Model fingerprint: 0x2e30df47
Variable types: 58 continuous, 3117 integer (3117 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 134410 rows and 24 columns
Presolve time: 3.21s
Presolved: 204196 rows, 3151 columns, 616210 nonzeros
Variable types: 0 continuous, 3151 integer (3093 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 3136 rows, 207332 columns, 619361 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    3881    1.9865053e+02   0.000000e+00   8.084152e+05      5s
   24345    8.2128439e+01   0.000000e+00   4.312151e+05     11s
   35295    6.9996654e+01   0.000000e+00   2.062533e+05     15s
   48075    6.2903373e+01   0.000000e+00   1.714508e+05     20s
   60955    5.9849486e+01   0.000000e+00   2.501595e+05     25s
   74360    5.9801585e+01   0.000000e+00   4.627651e+05     30s
   86900    5.9781494e+01   0.000000e+00   4.663568e+04     35s
   99440    5.9771076e+01   0.000000e+00   3.660278e+04     40s
  111980    5.9764044e+01   0.000000e+00   1.348216e+04     45s

Root relaxation: time limit, 124330 iterations, 46.38 seconds (27.58 work units)

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

     0     0          -    0         9.00000  374.00000  4056%     -   50s

Explored 1 nodes (124330 simplex iterations) in 50.05 seconds (30.51 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 2 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.740000000000e+02, gap 4055.5556%

Wrote result file './lp_solutions/grafo6298.44.sol'

