
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:30:14 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3878.45.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/grafo3878.45.lp
Reading time = 0.17 seconds
: 109821 rows, 2250 columns, 331100 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 109821 rows, 2250 columns and 331100 nonzeros
Model fingerprint: 0x184a3d65
Variable types: 43 continuous, 2207 integer (2207 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 31317 rows and 16 columns
Presolve time: 0.76s
Presolved: 78504 rows, 2234 columns, 237550 nonzeros
Variable types: 0 continuous, 2234 integer (2191 binary)
Root relaxation presolved: 2219 rows, 80723 columns, 239784 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24575    3.6815771e+01   0.000000e+00   2.129690e+04      5s
   51066    3.7000000e+01   0.000000e+00   0.000000e+00     10s
   51066    3.7000000e+01   0.000000e+00   0.000000e+00     10s
   51066    3.7000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 3.700000e+01, 51066 iterations, 9.01 seconds (7.04 work units)
Total elapsed time = 10.17s (DegenMoves)
Total elapsed time = 19.05s (DegenMoves)
Total elapsed time = 24.69s (DegenMoves)
Total elapsed time = 25.20s (DegenMoves)

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

     0     0   37.00000    0  301          -   37.00000      -     -   25s
H    0     0                       6.0000000   37.00000   517%     -   25s
H    0     0                       7.0000000   37.00000   429%     -   25s
H    0     0                       9.0000000   37.00000   311%     -   25s
     0     0   37.00000    0  559    9.00000   37.00000   311%     -   30s
H    0     0                      10.0000000   37.00000   270%     -   31s
     0     0   37.00000    0  524   10.00000   37.00000   270%     -   31s
     0     0   37.00000    0  372   10.00000   37.00000   270%     -   42s
     0     0   37.00000    0  376   10.00000   37.00000   270%     -   43s
     0     0   37.00000    0  628   10.00000   37.00000   270%     -   50s

Cutting planes:
  Cover: 28
  Clique: 7
  MIR: 94
  StrongCG: 2
  GUB cover: 5
  Zero half: 56
  RLT: 61
  BQP: 1

Explored 1 nodes (89648 simplex iterations) in 50.03 seconds (56.00 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 10 9 7 6 

Time limit reached
Best objective 1.000000000000e+01, best bound 3.700000000000e+01, gap 270.0000%

Wrote result file './lp_solutions/grafo3878.45.sol'

