
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:51:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10756.42.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/grafo10756.42.lp
Reading time = 0.26 seconds
: 163531 rows, 2347 columns, 492528 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 163531 rows, 2347 columns and 492528 nonzeros
Model fingerprint: 0x4c50ce9d
Variable types: 47 continuous, 2300 integer (2300 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 1.0000000
Presolve removed 59382 rows and 18 columns
Presolve time: 1.17s
Presolved: 104149 rows, 2329 columns, 314716 nonzeros
Variable types: 0 continuous, 2329 integer (2282 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2323 rows, 106472 columns, 317045 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   22482    5.2625341e+01   0.000000e+00   1.966296e+05      5s
   46283    5.0910579e+01   0.000000e+00   1.182998e+04     10s
   71528    5.0897932e+01   0.000000e+00   5.426843e+03     15s
   83819    5.1000000e+01   0.000000e+00   0.000000e+00     18s
   83819    5.1000000e+01   0.000000e+00   0.000000e+00     18s
   83819    5.1000000e+01   0.000000e+00   0.000000e+00     18s

Root relaxation: objective 5.100000e+01, 83819 iterations, 16.33 seconds (12.43 work units)
Total elapsed time = 32.49s (DegenMoves)
Total elapsed time = 35.28s (DegenMoves)

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

     0     0   51.00000    0  469    9.00000   51.00000   467%     -   35s
H    0     0                      11.0000000   51.00000   364%     -   36s
     0     0   51.00000    0  799   11.00000   51.00000   364%     -   49s

Cutting planes:
  Gomory: 5
  Cover: 1
  Clique: 16
  MIR: 52
  Zero half: 1
  RLT: 33
  BQP: 3

Explored 1 nodes (104522 simplex iterations) in 50.04 seconds (50.96 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 9 1 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.100000000000e+01, gap 363.6364%

Wrote result file './lp_solutions/grafo10756.42.sol'

