
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 14 03:46:37 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11653.37.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/grafo11653.37.lp
Reading time = 0.18 seconds
: 82211 rows, 2144 columns, 248650 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 82211 rows, 2144 columns and 248650 nonzeros
Model fingerprint: 0x62ef158e
Variable types: 48 continuous, 2096 integer (2096 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 18203 rows and 25 columns
Presolve time: 0.89s
Presolved: 64008 rows, 2119 columns, 194475 nonzeros
Variable types: 0 continuous, 2119 integer (2071 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 2113 rows, 66121 columns, 196594 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16223    4.3758878e+01   0.000000e+00   9.916416e+03      5s
   35743    4.3741287e+01   0.000000e+00   3.065530e+02     10s
   41162    4.4000000e+01   0.000000e+00   0.000000e+00     12s
   41162    4.4000000e+01   0.000000e+00   0.000000e+00     12s
   41162    4.4000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 4.400000e+01, 41162 iterations, 10.60 seconds (6.07 work units)
Total elapsed time = 22.98s (DegenMoves)
Total elapsed time = 30.10s (DegenMoves)

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

     0     0   44.00000    0  440   13.00000   44.00000   238%     -   31s
H    0     0                      15.0000000   44.00000   193%     -   34s
     0     0          -    0        15.00000   44.00000   193%     -   50s

Cutting planes:
  Gomory: 31
  Cover: 40
  Clique: 27
  MIR: 100
  GUB cover: 3
  Zero half: 39
  RLT: 53
  BQP: 2

Explored 1 nodes (67291 simplex iterations) in 50.08 seconds (36.08 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 15 13 

Time limit reached
Best objective 1.500000000000e+01, best bound 4.400000000000e+01, gap 193.3333%

Wrote result file './lp_solutions/grafo11653.37.sol'


Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:17:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11653.37.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/grafo11653.37.lp
Reading time = 0.14 seconds
: 82211 rows, 2144 columns, 248650 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 82211 rows, 2144 columns and 248650 nonzeros
Model fingerprint: 0x62ef158e
Variable types: 48 continuous, 2096 integer (2096 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 18203 rows and 25 columns
Presolve time: 0.60s
Presolved: 64008 rows, 2119 columns, 194475 nonzeros
Variable types: 0 continuous, 2119 integer (2071 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 2113 rows, 66121 columns, 196594 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24223    4.3745905e+01   0.000000e+00   1.028683e+04      5s
   41162    4.4000000e+01   0.000000e+00   0.000000e+00      8s
   41162    4.4000000e+01   0.000000e+00   0.000000e+00      8s
   41162    4.4000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 4.400000e+01, 41162 iterations, 7.72 seconds (6.07 work units)
Total elapsed time = 17.45s (DegenMoves)
Total elapsed time = 22.92s (DegenMoves)

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

     0     0   44.00000    0  440   13.00000   44.00000   238%     -   23s
H    0     0                      15.0000000   44.00000   193%     -   25s
     0     0   44.00000    0  895   15.00000   44.00000   193%     -   39s
     0     0   44.00000    0  869   15.00000   44.00000   193%     -   40s
     0     0          -    0        15.00000   44.00000   193%     -   50s

Cutting planes:
  Gomory: 4
  Cover: 5
  Clique: 26
  MIR: 107
  Zero half: 91
  RLT: 51
  BQP: 2

Explored 1 nodes (73551 simplex iterations) in 50.07 seconds (46.33 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 15 13 

Time limit reached
Best objective 1.500000000000e+01, best bound 4.400000000000e+01, gap 193.3333%

Wrote result file './lp_solutions/grafo11653.37.sol'

