
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 07:50:38 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6854.49.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/grafo6854.49.lp
Reading time = 0.25 seconds
: 157271 rows, 3158 columns, 474572 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 157271 rows, 3158 columns and 474572 nonzeros
Model fingerprint: 0x7d24b788
Variable types: 56 continuous, 3102 integer (3102 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 37903 rows and 1 columns
Presolve time: 0.94s
Presolved: 119368 rows, 3157 columns, 361326 nonzeros
Variable types: 0 continuous, 3157 integer (3101 binary)
Root relaxation presolved: 3127 rows, 122495 columns, 364483 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17473    7.6483537e+01   0.000000e+00   4.664174e+05      5s
   34534    6.2730665e+01   0.000000e+00   1.351076e+05     10s
   52318    6.2690645e+01   0.000000e+00   1.544559e+04     15s
   68126    6.2677278e+01   0.000000e+00   8.399333e+03     20s
   84922    6.2669852e+01   0.000000e+00   5.004590e+03     25s
  101718    6.2667100e+01   0.000000e+00   9.976714e+02     30s
  111990    6.3000000e+01   0.000000e+00   0.000000e+00     33s
  111990    6.3000000e+01   0.000000e+00   0.000000e+00     33s
  111990    6.3000000e+01   0.000000e+00   0.000000e+00     33s

Root relaxation: objective 6.300000e+01, 111990 iterations, 32.05 seconds (24.37 work units)

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

     0     0   63.00000    0 1928          -   63.00000      -     -   50s
H    0     0                       2.0000000   63.00000  3050%     -   50s

Explored 1 nodes (119605 simplex iterations) in 50.04 seconds (41.33 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 2 

Time limit reached
Best objective 2.000000000000e+00, best bound 6.300000000000e+01, gap 3050.0000%

Wrote result file './lp_solutions/grafo6854.49.sol'

