
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:25:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5700.36.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/grafo5700.36.lp
Reading time = 0.13 seconds
: 77736 rows, 2089 columns, 235160 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 77736 rows, 2089 columns and 235160 nonzeros
Model fingerprint: 0x5e35db7b
Variable types: 48 continuous, 2041 integer (2041 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 2.0000000
Presolve removed 16664 rows and 35 columns
Presolve time: 0.59s
Presolved: 61072 rows, 2054 columns, 185634 nonzeros
Variable types: 0 continuous, 2054 integer (2006 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2054 rows, 63126 columns, 187688 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24223    4.3721027e+01   0.000000e+00   6.800630e+03      5s
   43029    4.4000000e+01   0.000000e+00   0.000000e+00      9s
   43029    4.4000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 4.400000e+01, 43029 iterations, 8.14 seconds (5.96 work units)
Total elapsed time = 17.73s (DegenMoves)

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

     0     0   44.00000    0  563    8.00000   44.00000   450%     -   19s
H    0     0                       9.0000000   44.00000   389%     -   19s
     0     0   44.00000    0  844    9.00000   44.00000   389%     -   39s
     0     0   44.00000    0  785    9.00000   44.00000   389%     -   43s
     0     0          -    0         9.00000   44.00000   389%     -   50s

Cutting planes:
  Gomory: 4
  Cover: 8
  Clique: 4
  MIR: 125
  Zero half: 174
  RLT: 53

Explored 1 nodes (64769 simplex iterations) in 50.05 seconds (33.66 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 9 8 2 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.400000000000e+01, gap 388.8889%

Wrote result file './lp_solutions/grafo5700.36.sol'

