
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 05:29:44 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2963.40.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/grafo2963.40.lp
Reading time = 0.13 seconds
: 52152 rows, 1932 columns, 157937 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 52152 rows, 1932 columns and 157937 nonzeros
Model fingerprint: 0xb460e548
Variable types: 43 continuous, 1889 integer (1889 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 4767 rows and 43 columns
Presolve time: 0.50s
Presolved: 47385 rows, 1889 columns, 144094 nonzeros
Variable types: 0 continuous, 1889 integer (1846 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 25164 rows, 24110 columns, 99652 nonzeros


Root relaxation: objective 3.300000e+01, 3094 iterations, 1.70 seconds (1.04 work units)
Total elapsed time = 5.80s (DegenMoves)

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

     0     0   33.00000    0  362   10.00000   33.00000   230%     -    8s
H    0     0                      11.0000000   33.00000   200%     -    8s
H    0     0                      12.0000000   33.00000   175%     -   11s
     0     0   33.00000    0  683   12.00000   33.00000   175%     -   18s
H    0     0                      13.0000000   33.00000   154%     -   18s
     0     0   33.00000    0  665   13.00000   33.00000   154%     -   19s
H    0     0                      14.0000000   33.00000   136%     -   41s
H    0     0                      15.0000000   33.00000   120%     -   41s
     0     0   33.00000    0  507   15.00000   33.00000   120%     -   41s
     0     0   33.00000    0  420   15.00000   33.00000   120%     -   42s
     0     0          -    0        15.00000   33.00000   120%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 1
  Cover: 30
  MIR: 100
  StrongCG: 4
  GUB cover: 5
  Zero half: 37
  RLT: 41

Explored 1 nodes (37699 simplex iterations) in 50.10 seconds (29.68 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 15 14 13 ... 2

Time limit reached
Best objective 1.500000000000e+01, best bound 3.300000000000e+01, gap 120.0000%

Wrote result file './lp_solutions/grafo2963.40.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:02:37 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2963.40.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/grafo2963.40.lp
Reading time = 0.08 seconds
: 52152 rows, 1932 columns, 157937 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 52152 rows, 1932 columns and 157937 nonzeros
Model fingerprint: 0xb460e548
Variable types: 43 continuous, 1889 integer (1889 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 4767 rows and 43 columns
Presolve time: 0.34s
Presolved: 47385 rows, 1889 columns, 144094 nonzeros
Variable types: 0 continuous, 1889 integer (1846 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 25164 rows, 24110 columns, 99652 nonzeros


Root relaxation: objective 3.300000e+01, 3094 iterations, 1.08 seconds (1.04 work units)
Total elapsed time = 5.19s (DegenMoves)

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

     0     0   33.00000    0  362   10.00000   33.00000   230%     -    5s
H    0     0                      11.0000000   33.00000   200%     -    5s
H    0     0                      12.0000000   33.00000   175%     -    7s
     0     0   33.00000    0  683   12.00000   33.00000   175%     -   12s
H    0     0                      13.0000000   33.00000   154%     -   12s
     0     0   33.00000    0  665   13.00000   33.00000   154%     -   12s
H    0     0                      14.0000000   33.00000   136%     -   28s
H    0     0                      15.0000000   33.00000   120%     -   28s
     0     0   33.00000    0  507   15.00000   33.00000   120%     -   28s
     0     0   33.00000    0  420   15.00000   33.00000   120%     -   29s
     0     0   33.00000    0  407   15.00000   33.00000   120%     -   45s
     0     0   33.00000    0  481   15.00000   33.00000   120%     -   46s
     0     0          -    0        15.00000   33.00000   120%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 18
  MIR: 102
  StrongCG: 2
  GUB cover: 5
  Zero half: 30
  RLT: 44

Explored 1 nodes (58871 simplex iterations) in 50.05 seconds (45.46 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 15 14 13 ... 2

Time limit reached
Best objective 1.500000000000e+01, best bound 3.300000000000e+01, gap 120.0000%

Wrote result file './lp_solutions/grafo2963.40.sol'

