
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:41:25 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5376.48.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/grafo5376.48.lp
Reading time = 0.61 seconds
: 320005 rows, 3720 columns, 963696 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 320005 rows, 3720 columns and 963696 nonzeros
Model fingerprint: 0xac8e0b23
Variable types: 63 continuous, 3657 integer (3657 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 112669 rows and 13 columns
Presolve time: 2.69s
Presolved: 207336 rows, 3707 columns, 626067 nonzeros
Variable types: 0 continuous, 3707 integer (3644 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 3698 rows, 211034 columns, 629774 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    6025    1.7730929e+02   0.000000e+00   2.345553e+06      5s
   20921    1.3387949e+02   0.000000e+00   6.178822e+05     10s
   31488    1.1278201e+02   0.000000e+00   2.150085e+05     15s
   42510    9.1899207e+01   0.000000e+00   3.532491e+05     20s
   53035    8.2843940e+01   0.000000e+00   2.260805e+05     25s
   63248    8.2790999e+01   0.000000e+00   1.851061e+05     30s
   74258    8.2747853e+01   0.000000e+00   3.011705e+05     35s
   84387    8.2718353e+01   0.000000e+00   1.525892e+05     40s
   94514    8.2702622e+01   0.000000e+00   3.491179e+04     45s

Root relaxation: time limit, 103089 iterations, 46.70 seconds (27.66 work units)

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

     0     0          -    0         4.00000  415.00000      -     -   50s

Explored 1 nodes (103089 simplex iterations) in 50.05 seconds (30.35 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 4 

Time limit reached
Best objective 4.000000000000e+00, best bound 4.150000000000e+02, gap 10275.0000%

Wrote result file './lp_solutions/grafo5376.48.sol'

