
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:02:18 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2954.37.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/grafo2954.37.lp
Reading time = 0.16 seconds
: 102024 rows, 2175 columns, 308082 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 102024 rows, 2175 columns and 308082 nonzeros
Model fingerprint: 0xee81e063
Variable types: 48 continuous, 2127 integer (2127 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 28999 rows and 15 columns
Presolve time: 0.71s
Presolved: 73025 rows, 2160 columns, 221499 nonzeros
Variable types: 0 continuous, 2160 integer (2112 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2154 rows, 75179 columns, 223659 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   22570    4.7793533e+01   0.000000e+00   1.394478e+04      5s
   41816    4.8000000e+01   0.000000e+00   0.000000e+00      9s
   41816    4.8000000e+01   0.000000e+00   0.000000e+00      9s
   41816    4.8000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 4.800000e+01, 41816 iterations, 8.27 seconds (6.29 work units)
Total elapsed time = 18.51s (DegenMoves)
Total elapsed time = 20.21s (DegenMoves)

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

     0     0   48.00000    0  544   10.00000   48.00000   380%     -   20s
H    0     0                      11.0000000   48.00000   336%     -   20s
     0     0   48.00000    0  784   11.00000   48.00000   336%     -   36s
     0     0   48.00000    0  756   11.00000   48.00000   336%     -   37s
     0     0          -    0        11.00000   48.00000   336%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 42
  Cover: 11
  Clique: 29
  MIR: 120
  Zero half: 20
  RLT: 66
  BQP: 5

Explored 1 nodes (66509 simplex iterations) in 50.08 seconds (43.47 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 10 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.800000000000e+01, gap 336.3636%

Wrote result file './lp_solutions/grafo2954.37.sol'

