
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:41:32 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3432.44.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/grafo3432.44.lp
Reading time = 0.19 seconds
: 116966 rows, 2378 columns, 352741 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 116966 rows, 2378 columns and 352741 nonzeros
Model fingerprint: 0xd09fe644
Variable types: 46 continuous, 2332 integer (2332 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 34123 rows and 22 columns
Presolve time: 0.83s
Presolved: 82843 rows, 2356 columns, 250757 nonzeros
Variable types: 0 continuous, 2356 integer (2310 binary)
Root relaxation presolved: 2356 rows, 85199 columns, 253113 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25553    5.2945216e+01   0.000000e+00   1.032762e+04      5s
   49751    5.2941411e+01   0.000000e+00   1.135272e-01     10s
   49957    5.3000000e+01   0.000000e+00   0.000000e+00     10s
   49957    5.3000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 5.300000e+01, 49957 iterations, 9.07 seconds (7.92 work units)
Total elapsed time = 23.63s (DegenMoves)
Total elapsed time = 27.42s (DegenMoves)

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

     0     0   53.00000    0  750          -   53.00000      -     -   28s
H    0     0                       5.0000000   53.00000   960%     -   28s
H    0     0                       7.0000000   53.00000   657%     -   28s
     0     0   53.00000    0  939    7.00000   53.00000   657%     -   49s

Cutting planes:
  Gomory: 2
  Clique: 28
  MIR: 49
  Zero half: 8
  RLT: 22
  BQP: 5

Explored 1 nodes (76162 simplex iterations) in 50.02 seconds (51.12 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 7 5 

Time limit reached
Best objective 7.000000000000e+00, best bound 5.300000000000e+01, gap 657.1429%

Wrote result file './lp_solutions/grafo3432.44.sol'

