
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:42:46 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2506.43.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/grafo2506.43.lp
Reading time = 0.20 seconds
: 127148 rows, 2580 columns, 383695 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 127148 rows, 2580 columns and 383695 nonzeros
Model fingerprint: 0x5cc3704e
Variable types: 50 continuous, 2530 integer (2530 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 36956 rows and 9 columns
Presolve time: 0.79s
Presolved: 90192 rows, 2571 columns, 273382 nonzeros
Variable types: 0 continuous, 2571 integer (2521 binary)
Root relaxation presolved: 2559 rows, 92751 columns, 275953 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24357    5.2986167e+01   0.000000e+00   2.538767e+05      5s
   48717    5.2969545e+01   0.000000e+00   5.115682e+03     10s
   57388    5.3000000e+01   0.000000e+00   0.000000e+00     12s
   57388    5.3000000e+01   0.000000e+00   0.000000e+00     12s
   57388    5.3000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 5.300000e+01, 57388 iterations, 11.01 seconds (9.53 work units)
Total elapsed time = 29.43s (DegenMoves)
Total elapsed time = 30.41s (DegenMoves)

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

     0     0   53.00000    0  597          -   53.00000      -     -   34s
H    0     0                       7.0000000   53.00000   657%     -   34s
H    0     0                      10.0000000   53.00000   430%     -   34s
     0     0   53.00000    0  875   10.00000   53.00000   430%     -   49s

Cutting planes:
  Gomory: 2
  Clique: 7
  MIR: 73
  Zero half: 11
  RLT: 37
  BQP: 3

Explored 1 nodes (84178 simplex iterations) in 50.04 seconds (52.68 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 7 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.300000000000e+01, gap 430.0000%

Wrote result file './lp_solutions/grafo2506.43.sol'

