
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:42:11 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7353.49.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/grafo7353.49.lp
Reading time = 0.30 seconds
: 177411 rows, 3575 columns, 535643 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 177411 rows, 3575 columns and 535643 nonzeros
Model fingerprint: 0xd6b874f3
Variable types: 62 continuous, 3513 integer (3513 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 37082 rows and 0 columns
Presolve time: 1.16s
Presolved: 140329 rows, 3575 columns, 425008 nonzeros
Variable types: 0 continuous, 3575 integer (3513 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 3521 rows, 143850 columns, 428583 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   12982    6.7560546e+01   0.000000e+00   3.752668e+05      5s
   25749    6.3477024e+01   0.000000e+00   2.805747e+05     10s
   38232    6.3441416e+01   0.000000e+00   2.285758e+05     15s
   50712    6.3420876e+01   0.000000e+00   1.125506e+05     20s
   62672    6.3409979e+01   0.000000e+00   4.016377e+04     25s
   74632    6.3402972e+01   0.000000e+00   5.584623e+03     30s
   86072    6.3398784e+01   0.000000e+00   1.884801e+04     35s
   97512    6.3395835e+01   0.000000e+00   1.372582e+04     40s
  108952    6.3393761e+01   0.000000e+00   6.017250e+03     45s

Root relaxation: time limit, 120647 iterations, 48.62 seconds (35.71 work units)

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

     0     0          -    0         9.00000  304.00000  3278%     -   50s

Explored 1 nodes (120647 simplex iterations) in 50.02 seconds (37.16 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 1 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.040000000000e+02, gap 3277.7778%

Wrote result file './lp_solutions/grafo7353.49.sol'

