
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:02:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7386.46.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/grafo7386.46.lp
Reading time = 0.72 seconds
: 372381 rows, 3461 columns, 1120578 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 372381 rows, 3461 columns and 1120578 nonzeros
Model fingerprint: 0x87ac98c4
Variable types: 61 continuous, 3400 integer (3400 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 145068 rows and 31 columns
Presolve time: 3.51s
Presolved: 227313 rows, 3430 columns, 685876 nonzeros
Variable types: 0 continuous, 3430 integer (3369 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 3424 rows, 230737 columns, 689306 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    1761    3.2347549e+02   0.000000e+00   1.979446e+06      5s
   21586    8.8998369e+01   0.000000e+00   7.666017e+05     11s
   30732    8.0973628e+01   0.000000e+00   7.049366e+05     15s
   41235    6.7894609e+01   0.000000e+00   2.868100e+05     20s
   53151    6.6822152e+01   0.000000e+00   2.190461e+05     25s
   63513    6.6768273e+01   0.000000e+00   1.361667e+05     30s
   74677    6.6734299e+01   0.000000e+00   1.176407e+05     35s
   84973    6.6716610e+01   0.000000e+00   1.134882e+05     40s
   95269    6.6706641e+01   0.000000e+00   1.676302e+04     45s

Root relaxation: time limit, 105643 iterations, 46.10 seconds (26.35 work units)

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

     0     0          -    0         8.00000  385.00000  4712%     -   50s

Explored 1 nodes (105643 simplex iterations) in 50.05 seconds (29.57 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 1 

Time limit reached
Best objective 8.000000000000e+00, best bound 3.850000000000e+02, gap 4712.5000%

Wrote result file './lp_solutions/grafo7386.46.sol'

