
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:50:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6740.50.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/grafo6740.50.lp
Reading time = 0.35 seconds
: 211434 rows, 3633 columns, 637775 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 211434 rows, 3633 columns and 637775 nonzeros
Model fingerprint: 0xbfcf6791
Variable types: 62 continuous, 3571 integer (3571 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 54166 rows and 3 columns
Presolve time: 1.43s
Presolved: 157268 rows, 3630 columns, 475789 nonzeros
Variable types: 0 continuous, 3630 integer (3568 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 3594 rows, 160862 columns, 479419 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13849    7.3232560e+01   0.000000e+00   4.000212e+05      5s
   26531    6.6488407e+01   0.000000e+00   1.074968e+05     10s
   38552    6.6461955e+01   0.000000e+00   2.467765e+04     15s
   50137    6.6449799e+01   0.000000e+00   1.876597e+04     20s
   62612    6.6441992e+01   0.000000e+00   3.008681e+04     25s
   74211    6.6436498e+01   0.000000e+00   2.187915e+04     30s
   86508    6.6431780e+01   0.000000e+00   6.618863e+03     35s
   98684    6.6428591e+01   0.000000e+00   1.840825e+04     40s
  110953    6.6426480e+01   0.000000e+00   1.036972e+03     45s

Root relaxation: time limit, 122995 iterations, 48.19 seconds (33.99 work units)

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

     0     0          -    0         6.00000  312.00000  5100%     -   50s

Explored 1 nodes (122995 simplex iterations) in 50.02 seconds (35.77 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 3.120000000000e+02, gap 5100.0000%

Wrote result file './lp_solutions/grafo6740.50.sol'

