
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 03:18:31 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1510.48.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/grafo1510.48.lp
Reading time = 0.16 seconds
: 75866 rows, 2502 columns, 229461 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 75866 rows, 2502 columns and 229461 nonzeros
Model fingerprint: 0x4ddb7f51
Variable types: 48 continuous, 2454 integer (2454 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 4297 rows and 0 columns
Presolve time: 0.72s
Presolved: 71569 rows, 2502 columns, 216861 nonzeros
Variable types: 0 continuous, 2502 integer (2454 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2457 rows, 74026 columns, 219363 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17180    3.8954076e+01   0.000000e+00   1.654094e+04      5s
   30797    3.9000000e+01   0.000000e+00   0.000000e+00      9s
   30797    3.9000000e+01   0.000000e+00   0.000000e+00      9s
   30797    3.9000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 3.900000e+01, 30797 iterations, 7.96 seconds (5.51 work units)
Total elapsed time = 18.73s (DegenMoves)
Total elapsed time = 20.51s (DegenMoves)

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

     0     0   39.00000    0  419    9.00000   39.00000   333%     -   21s
H    0     0                      13.0000000   39.00000   200%     -   21s
H    0     0                      14.0000000   39.00000   179%     -   25s
     0     0   39.00000    0  748   14.00000   39.00000   179%     -   32s
     0     0   39.00000    0  745   14.00000   39.00000   179%     -   33s
     0     0   39.00000    0  746   14.00000   39.00000   179%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 3
  Cover: 3
  Clique: 1
  MIR: 101
  Zero half: 93
  RLT: 63

Explored 1 nodes (55901 simplex iterations) in 50.10 seconds (28.59 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 14 13 9 1 

Time limit reached
Best objective 1.400000000000e+01, best bound 3.900000000000e+01, gap 178.5714%

Wrote result file './lp_solutions/grafo1510.48.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 05:17:59 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1510.48.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/grafo1510.48.lp
Reading time = 0.15 seconds
: 75866 rows, 2502 columns, 229461 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 75866 rows, 2502 columns and 229461 nonzeros
Model fingerprint: 0x4ddb7f51
Variable types: 48 continuous, 2454 integer (2454 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 4297 rows and 0 columns
Presolve time: 0.57s
Presolved: 71569 rows, 2502 columns, 216861 nonzeros
Variable types: 0 continuous, 2502 integer (2454 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2457 rows, 74026 columns, 219363 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17520    3.8953846e+01   0.000000e+00   1.196986e+04      5s
   30797    3.9000000e+01   0.000000e+00   0.000000e+00      9s
   30797    3.9000000e+01   0.000000e+00   0.000000e+00      9s
   30797    3.9000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 3.900000e+01, 30797 iterations, 8.13 seconds (5.51 work units)
Total elapsed time = 18.42s (DegenMoves)
Total elapsed time = 20.06s (DegenMoves)

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

     0     0   39.00000    0  419    9.00000   39.00000   333%     -   21s
H    0     0                      13.0000000   39.00000   200%     -   21s
H    0     0                      14.0000000   39.00000   179%     -   25s
     0     0   39.00000    0  748   14.00000   39.00000   179%     -   32s
     0     0   39.00000    0  745   14.00000   39.00000   179%     -   33s
     0     0   39.00000    0  746   14.00000   39.00000   179%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 3
  Cover: 3
  Clique: 1
  MIR: 101
  Zero half: 93
  RLT: 63

Explored 1 nodes (54642 simplex iterations) in 50.14 seconds (27.83 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 14 13 9 1 

Time limit reached
Best objective 1.400000000000e+01, best bound 3.900000000000e+01, gap 178.5714%

Wrote result file './lp_solutions/grafo1510.48.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 20 06:20:47 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1510.48.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/grafo1510.48.lp
Reading time = 0.14 seconds
: 75866 rows, 2502 columns, 229461 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 75866 rows, 2502 columns and 229461 nonzeros
Model fingerprint: 0x4ddb7f51
Variable types: 48 continuous, 2454 integer (2454 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 4297 rows and 0 columns
Presolve time: 0.50s
Presolved: 71569 rows, 2502 columns, 216861 nonzeros
Variable types: 0 continuous, 2502 integer (2454 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2457 rows, 74026 columns, 219363 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19900    3.8952869e+01   0.000000e+00   5.351888e+02      5s
   30797    3.9000000e+01   0.000000e+00   0.000000e+00      8s
   30797    3.9000000e+01   0.000000e+00   0.000000e+00      8s
   30797    3.9000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 3.900000e+01, 30797 iterations, 7.15 seconds (5.51 work units)
Total elapsed time = 16.47s (DegenMoves)

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

     0     0   39.00000    0  419    9.00000   39.00000   333%     -   18s
H    0     0                      13.0000000   39.00000   200%     -   18s
H    0     0                      14.0000000   39.00000   179%     -   22s
     0     0   39.00000    0  748   14.00000   39.00000   179%     -   27s
     0     0   39.00000    0  745   14.00000   39.00000   179%     -   29s
     0     0   39.00000    0  692   14.00000   39.00000   179%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 3
  Cover: 3
  Clique: 1
  MIR: 101
  Zero half: 93
  RLT: 63

Explored 1 nodes (60915 simplex iterations) in 50.08 seconds (34.82 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 14 13 9 1 

Time limit reached
Best objective 1.400000000000e+01, best bound 3.900000000000e+01, gap 178.5714%

Wrote result file './lp_solutions/grafo1510.48.sol'

