
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 06:21:06 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6264.50.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/grafo6264.50.lp
Reading time = 0.80 seconds
: 394939 rows, 4071 columns, 1188925 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 394939 rows, 4071 columns and 1188925 nonzeros
Model fingerprint: 0x453426b3
Variable types: 66 continuous, 4005 integer (4005 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, 7e+01]
Found heuristic solution: objective 1.0000000
Presolve removed 144407 rows and 4 columns
Presolve time: 3.15s
Presolved: 250532 rows, 4067 columns, 756173 nonzeros
Variable types: 0 continuous, 4067 integer (4001 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 4056 rows, 254588 columns, 760240 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    3205    3.3173805e+02   0.000000e+00   3.014496e+06      5s
   20001    1.7600517e+02   0.000000e+00   7.027832e+06     10s
   33825    1.3241858e+02   0.000000e+00   2.071401e+06     16s
   44348    1.0262189e+02   0.000000e+00   2.962761e+06     20s
   55272    9.3823912e+01   0.000000e+00   8.432668e+05     26s
   63590    9.3774260e+01   0.000000e+00   5.109633e+05     30s
   73100    9.3724036e+01   0.000000e+00   3.063735e+05     35s
   81976    9.1687494e+01   0.000000e+00   2.405189e+05     40s
   90443    8.8654459e+01   0.000000e+00   1.975036e+05     45s

Root relaxation: time limit, 98156 iterations, 46.38 seconds (24.94 work units)

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

     0     0          -    0        11.00000  463.00000  4109%     -   50s

Explored 1 nodes (98156 simplex iterations) in 50.05 seconds (28.09 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 4.630000000000e+02, gap 4109.0909%

Wrote result file './lp_solutions/grafo6264.50.sol'

