
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 08:18:29 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10046.40.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/grafo10046.40.lp
Reading time = 0.14 seconds
: 86873 rows, 2220 columns, 262545 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 86873 rows, 2220 columns and 262545 nonzeros
Model fingerprint: 0x04dc7dcf
Variable types: 45 continuous, 2175 integer (2175 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 22181 rows and 30 columns
Presolve time: 0.58s
Presolved: 64692 rows, 2190 columns, 196566 nonzeros
Variable types: 0 continuous, 2190 integer (2145 binary)
Root relaxation presolved: 2187 rows, 66879 columns, 198756 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   25770    4.3935118e+01   0.000000e+00   1.372302e+04      5s
   48970    4.3923494e+01   0.000000e+00   2.018322e+03     10s
   55511    4.4000000e+01   0.000000e+00   0.000000e+00     12s
   55511    4.4000000e+01   0.000000e+00   0.000000e+00     12s
   55511    4.4000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 4.400000e+01, 55511 iterations, 10.88 seconds (9.95 work units)
Total elapsed time = 20.15s (DegenMoves)
Total elapsed time = 33.61s (DegenMoves)
Total elapsed time = 36.17s (DegenMoves)

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

     0     0   44.00000    0  428          -   44.00000      -     -   37s
H    0     0                       9.0000000   44.00000   389%     -   38s
     0     0   44.00000    0  624    9.00000   44.00000   389%     -   44s
H    0     0                      11.0000000   44.00000   300%     -   44s
     0     0   44.00000    0  606   11.00000   44.00000   300%     -   45s
     0     0          -    0        11.00000   44.00000   300%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 46
  Cover: 3
  Clique: 24
  MIR: 114
  Zero half: 27
  RLT: 52
  BQP: 3

Explored 1 nodes (90341 simplex iterations) in 50.08 seconds (54.07 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 9 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.400000000000e+01, gap 300.0000%

Wrote result file './lp_solutions/grafo10046.40.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 00:17:11 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10046.40.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/grafo10046.40.lp
Reading time = 0.21 seconds
: 86873 rows, 2220 columns, 262545 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 86873 rows, 2220 columns and 262545 nonzeros
Model fingerprint: 0x04dc7dcf
Variable types: 45 continuous, 2175 integer (2175 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 22181 rows and 30 columns
Presolve time: 0.95s
Presolved: 64692 rows, 2190 columns, 196566 nonzeros
Variable types: 0 continuous, 2190 integer (2145 binary)
Root relaxation presolved: 2187 rows, 66879 columns, 198756 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15923    4.3950560e+01   0.000000e+00   2.607611e+05      5s
   33011    4.3928947e+01   0.000000e+00   1.153898e+04     10s
   48970    4.3923494e+01   0.000000e+00   2.018322e+03     15s
   55511    4.4000000e+01   0.000000e+00   0.000000e+00     17s
   55511    4.4000000e+01   0.000000e+00   0.000000e+00     17s
   55511    4.4000000e+01   0.000000e+00   0.000000e+00     17s

Root relaxation: objective 4.400000e+01, 55511 iterations, 16.25 seconds (9.95 work units)
Total elapsed time = 29.44s (DegenMoves)
Total elapsed time = 47.58s (DegenMoves)

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

     0     0   44.00000    0  502          -   44.00000      -     -   50s
H    0     0                       9.0000000   44.00000   389%     -   50s

Explored 1 nodes (80605 simplex iterations) in 50.05 seconds (42.59 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

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

Wrote result file './lp_solutions/grafo10046.40.sol'

