
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:28:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7474.43.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/grafo7474.43.lp
Reading time = 0.14 seconds
: 87639 rows, 2330 columns, 264809 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 87639 rows, 2330 columns and 264809 nonzeros
Model fingerprint: 0x69ab97e4
Variable types: 47 continuous, 2283 integer (2283 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]
Found heuristic solution: objective -0.0000000
Presolve removed 17615 rows and 24 columns
Presolve time: 0.58s
Presolved: 70024 rows, 2306 columns, 212470 nonzeros
Variable types: 0 continuous, 2306 integer (2259 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 2306 rows, 72330 columns, 214776 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23959    4.3943761e+01   0.000000e+00   1.890312e+04      5s
   46076    4.3932033e+01   0.000000e+00   1.048329e+03     10s
   58265    4.4000000e+01   0.000000e+00   0.000000e+00     13s
   58265    4.4000000e+01   0.000000e+00   0.000000e+00     13s

Root relaxation: objective 4.400000e+01, 58265 iterations, 12.24 seconds (12.01 work units)
Total elapsed time = 23.20s (DegenMoves)
Total elapsed time = 25.33s (DegenMoves)

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

     0     0   44.00000    0  429   11.00000   44.00000   300%     -   25s
H    0     0                      12.0000000   44.00000   267%     -   25s
     0     0   44.00000    0  718   12.00000   44.00000   267%     -   39s
     0     0   44.00000    0  680   12.00000   44.00000   267%     -   40s
     0     0   44.00000    0  684   12.00000   44.00000   267%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 34
  Cover: 6
  Clique: 7
  MIR: 112
  GUB cover: 3
  Zero half: 18
  RLT: 46
  BQP: 1

Explored 1 nodes (86668 simplex iterations) in 50.09 seconds (46.16 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 12 11 -0 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.400000000000e+01, gap 266.6667%

Wrote result file './lp_solutions/grafo7474.43.sol'

