
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 06:13:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7743.37.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/grafo7743.37.lp
Reading time = 0.53 seconds
: 313396 rows, 2527 columns, 942691 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 313396 rows, 2527 columns and 942691 nonzeros
Model fingerprint: 0xe3c84b0f
Variable types: 52 continuous, 2475 integer (2475 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, 5e+01]
Presolve removed 136539 rows and 15 columns
Presolve time: 2.46s
Presolved: 176857 rows, 2512 columns, 533434 nonzeros
Variable types: 0 continuous, 2512 integer (2460 binary)
Root relaxation presolved: 2509 rows, 179366 columns, 535946 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   11404    1.2577678e+02   0.000000e+00   5.394568e+05      5s
   38185    7.7995476e+01   0.000000e+00   9.846402e+04     10s
   56675    6.0923645e+01   0.000000e+00   7.367267e+04     15s
   76955    6.0864658e+01   0.000000e+00   2.559516e+04     20s
   98074    6.0845662e+01   0.000000e+00   1.940500e+03     25s
  119188    6.0838703e+01   0.000000e+00   7.162675e+02     30s
  133390    6.1000000e+01   0.000000e+00   0.000000e+00     34s
  133390    6.1000000e+01   0.000000e+00   0.000000e+00     34s
  133390    6.1000000e+01   0.000000e+00   0.000000e+00     34s

Root relaxation: objective 6.100000e+01, 133390 iterations, 30.82 seconds (22.49 work units)

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

     0     0   61.00000    0 1516          -   61.00000      -     -   50s
H    0     0                       3.0000000   61.00000  1933%     -   50s

Explored 1 nodes (139715 simplex iterations) in 50.06 seconds (41.27 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 3 

Time limit reached
Best objective 3.000000000000e+00, best bound 6.100000000000e+01, gap 1933.3333%

Wrote result file './lp_solutions/grafo7743.37.sol'

