Trace number 35228

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerObjective functionCPU timeWall clock time
minisat+ 1.14OPT34 6.43102 6.43619

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/
MIPLIB/miplib/normalized-mps-v2-20-10-bm23.opb
MD5SUM5c5bb330d1cbd0e2ab066594a5d2a4de
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark34
Best CPU time to get the best result obtained on this benchmark0.082986
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 34
Optimality of the best value was proved YES
Number of variables27
Total number of constraints20
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints20
Minimum length of a constraint18
Maximum length of a constraint26
Number of terms in the objective function 27
Biggest coefficient in the objective function 9
Number of bits for the biggest coefficient in the objective function 4
Sum of the numbers in the objective function 124
Number of bits of the sum of numbers in the objective function 7
Biggest number in a constraint 65
Number of bits of the biggest number in a constraint 7
Biggest sum of numbers in a constraint 182
Number of bits of the biggest sum of numbers8
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data (download as text)

0.00	c Parsing PB file...
0.00	c Converting 20 PB-constraints to clauses...
0.00	c   -- Unit propagations: (none)
0.00	c   -- Detecting intervals from adjacent constraints: (none)
0.00	c   -- Clauses(.)/Splits(s): (none)
0.00	c ---[  19]---> Sorter-cost:  678     Base: 2 2
0.00	c ---[  18]---> Sorter-cost:  689     Base: 3 2
0.01	c ---[  17]---> Sorter-cost:  686     Base: 3 2
0.01	c ---[  16]---> Sorter-cost:  475     Base: 3 3
0.01	c ---[  15]---> Sorter-cost:  776     Base: 3 2
0.01	c ---[  14]---> Sorter-cost:  514     Base: 3 2
0.02	c ---[  13]---> Sorter-cost:  494     Base: 2 2
0.02	c ---[  12]---> Sorter-cost:  661     Base: 3 2
0.02	c ---[  11]---> Sorter-cost:  521     Base: 2 3
0.02	c ---[  10]---> Sorter-cost:  165     Base: 2
0.02	c ---[   9]---> Sorter-cost:  587     Base: 2 3
0.03	c ---[   8]---> Sorter-cost:  562     Base: 2 2
0.03	c ---[   7]---> Sorter-cost:  635     Base: 2 2
0.03	c ---[   6]---> Sorter-cost:  470     Base: 3 3
0.03	c ---[   5]---> Sorter-cost:  583     Base: 2 3
0.03	c ---[   4]---> Sorter-cost:  547     Base: 3 2
0.04	c ---[   3]---> Sorter-cost:  323     Base: 3 2
0.04	c ---[   2]---> Sorter-cost:  477     Base: 2 2
0.04	c ---[   1]---> Sorter-cost:  613     Base: 2 2 2
0.04	c ---[   0]---> Sorter-cost:  530     Base: 2 2
0.06	c ==================================[MINISAT+]==================================
0.06	c | Conflicts | Original         | Learnt                           | Progress |
0.06	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.06	c ==============================================================================
0.06	c |         0 |   19873    46623 |    6624       0        0     nan |  0.000 % |
0.11	c |       102 |   19873    46623 |    7286     102     2443    24.0 |  0.232 % |
0.17	c |       252 |   19873    46623 |    8015     252     5446    21.6 |  0.232 % |
0.28	c |       478 |   19873    46623 |    8816     478    10041    21.0 |  0.231 % |
0.42	c |       815 |   19873    46623 |    9698     815    18385    22.6 |  0.231 % |
0.63	c ==============================================================================
0.63	c Found solution: 56
0.63	o 56
0.63	c ---[   0]---> Sorter-cost:  703     Base: 2 2
0.63	c ==================================[MINISAT+]==================================
0.63	c | Conflicts | Original         | Learnt                           | Progress |
0.63	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.63	c ==============================================================================
0.63	c |      1306 |   21179    49678 |    7059    1306    28955    22.2 |  0.231 % |
0.69	c |      1407 |   21179    49678 |    7764    1407    31490    22.4 |  0.228 % |
0.77	c |      1557 |   21179    49678 |    8541    1557    34783    22.3 |  0.228 % |
0.90	c |      1784 |   21179    49678 |    9395    1784    39218    22.0 |  0.229 % |
1.08	c |      2123 |   21179    49678 |   10335    2123    47892    22.6 |  0.228 % |
1.33	c |      2629 |   21179    49678 |   11368    2629    60968    23.2 |  0.228 % |
1.74	c |      3392 |   21179    49678 |   12505    3392    82200    24.2 |  0.228 % |
2.33	c |      4531 |   21179    49678 |   13755    4531   114424    25.3 |  0.228 % |
2.43	c ==============================================================================
2.43	c Found solution: 55
2.43	o 55
2.43	c ---[   0]---> Sorter-cost:    2     Base: 2 2
2.43	c ==================================[MINISAT+]==================================
2.43	c | Conflicts | Original         | Learnt                           | Progress |
2.43	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
2.43	c ==============================================================================
2.43	c |      4689 |   21190    49713 |    7063    4689   118099    25.2 |  0.228 % |
2.48	c |      4789 |   21190    49713 |    7769    4789   120288    25.1 |  0.239 % |
2.56	c |      4940 |   21190    49713 |    8546    4940   124042    25.1 |  0.239 % |
2.67	c |      5165 |   21190    49713 |    9400    5165   129504    25.1 |  0.239 % |
2.85	c |      5505 |   21190    49713 |   10340    5505   136992    24.9 |  0.239 % |
3.10	c ==============================================================================
3.10	c Found solution: 48
3.10	o 48
3.10	c ---[   0]---> Sorter-cost:    2     Base: 2 2
3.11	c ==================================[MINISAT+]==================================
3.11	c | Conflicts | Original         | Learnt                           | Progress |
3.11	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
3.11	c ==============================================================================
3.11	c |      5973 |   21208    49761 |    7069    5973   150436    25.2 |  0.239 % |
3.15	c |      6073 |   21208    49761 |    7775    6073   153259    25.2 |  0.250 % |
3.23	c |      6223 |   21208    49761 |    8553    6223   157315    25.3 |  0.250 % |
3.34	c |      6448 |   21208    49761 |    9408    6448   163986    25.4 |  0.250 % |
3.43	c ==============================================================================
3.43	c Found solution: 45
3.43	o 45
3.43	c ---[   0]---> Sorter-cost:    1     Base: 2 2
3.44	c ==================================[MINISAT+]==================================
3.44	c | Conflicts | Original         | Learnt                           | Progress |
3.44	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
3.44	c ==============================================================================
3.44	c |      6591 |   21213    49775 |    7071    6591   167843    25.5 |  0.250 % |
3.49	c |      6692 |   21213    49775 |    7778    6692   170216    25.4 |  0.261 % |
3.57	c |      6842 |   21213    49775 |    8555    6842   173791    25.4 |  0.261 % |
3.69	c |      7067 |   21213    49775 |    9411    7067   178477    25.3 |  0.261 % |
3.87	c |      7404 |   21213    49775 |   10352    7404   185776    25.1 |  0.261 % |
4.15	c |      7910 |   21213    49775 |   11387    7910   198125    25.0 |  0.260 % |
4.28	c ==============================================================================
4.28	c Found solution: 39
4.28	o 39
4.28	c ---[   0]---> Sorter-cost:    2     Base: 2 2
4.29	c ==================================[MINISAT+]==================================
4.29	c | Conflicts | Original         | Learnt                           | Progress |
4.29	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
4.29	c ==============================================================================
4.29	c |      8134 |   21226    49807 |    7075    8134   204355    25.1 |  0.260 % |
4.35	c |      8235 |   21226    49807 |    7782    4168   100571    24.1 |  0.271 % |
4.42	c |      8385 |   21226    49807 |    8560    4318   104623    24.2 |  0.271 % |
4.44	c ==============================================================================
4.44	c Found solution: 37
4.44	o 37
4.44	c ---[   0]---> Sorter-cost:    1     Base: 2 2
4.44	c ==================================[MINISAT+]==================================
4.44	c | Conflicts | Original         | Learnt                           | Progress |
4.44	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
4.44	c ==============================================================================
4.44	c |      8398 |   21231    49821 |    7077    4331   104903    24.2 |  0.271 % |
4.49	c |      8498 |   21231    49821 |    7784    4431   107306    24.2 |  0.282 % |
4.56	c |      8651 |   21231    49821 |    8563    4584   109439    23.9 |  0.282 % |
4.67	c |      8876 |   21231    49821 |    9419    4809   113165    23.5 |  0.282 % |
4.83	c |      9214 |   21231    49821 |   10361    5147   118064    22.9 |  0.282 % |
5.10	c |      9720 |   21231    49821 |   11397    5653   125121    22.1 |  0.282 % |
5.46	c ==============================================================================
5.46	c Found solution: 34
5.46	o 34
5.46	c ---[   0]---> Sorter-cost:    3     Base: 2 2
5.46	c ==================================[MINISAT+]==================================
5.46	c | Conflicts | Original         | Learnt                           | Progress |
5.46	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
5.46	c ==============================================================================
5.46	c |     10353 |   21236    49838 |    7078    6286   140504    22.4 |  0.282 % |
5.51	c |     10454 |   21236    49838 |    7785    6387   142965    22.4 |  0.293 % |
5.59	c |     10605 |   21236    49838 |    8564    6538   146788    22.5 |  0.293 % |
5.69	c |     10830 |   21236    49838 |    9420    6763   151820    22.4 |  0.293 % |
5.85	c |     11168 |   21236    49838 |   10362    7101   159017    22.4 |  0.292 % |
6.11	c |     11675 |   21236    49838 |   11399    7608   168410    22.1 |  0.292 % |
6.43	c ==============================================================================
6.43	c Optimal solution: 34
6.43	s OPTIMUM FOUND
6.43	v -x1 -x2 x3 -x4 x5 -x6 -x7 -x8 x9 -x10 -x11 -x12 -x13 -x14 x15 -x16 x17 -x18 -x19 x20 -x21 x22 -x23 -x24 -x25 -x26 x27
6.43	c _______________________________________________________________________________
6.43	c 
6.43	c restarts              : 43
6.43	c conflicts             : 12344          (1921 /sec)
6.43	c decisions             : 19824          (3085 /sec)
6.43	c propagations          : 0              (0 /sec)
6.43	c inspects              : 0              (0 /sec)
6.43	c CPU time              : 6.42502 s
6.43	c _______________________________________________________________________________

Verifier Data (download as text)

OK	34

Watcher Data (download as text)

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node35/watcher-35228-1149368762 -o ROOT/results/node35/solver-35228-1149368762 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node35/35228-1149368762/instance-35228-1149368762.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.84 0.94 0.93 2/64 10021
/proc/meminfo: memFree=1415872/2055920 swapFree=4180888/4192956
[pid=10021] ppid=10019 vsize=1048 CPUtime=0
/proc/10021/stat : 10021 (minisat+) R 10019 10021 9975 0 -1 4194304 108 0 0 0 0 0 0 0 19 0 1 0 202540073 1073152 93 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 134618678 0 0 4096 16386 0 0 0 17 1 0 0
/proc/10021/statm: 262 93 74 215 0 44 0

Child status: 30
Real time (s): 6.43619
CPU time (s): 6.43102
CPU user time (s): 6.42602
CPU system time (s): 0.004999
CPU usage (%): 99.9198
Max. virtual memory (cumulated for all children) (Kb): 0

Launcher Data (download as text)

Begin job on node35 on Sat Jun  3 21:06:02 UTC 2006


FILE ID= 35228-1149368762

PBS_JOBID= 312017

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-bm23.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node35/35228-1149368762/instance-35228-1149368762.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node35/watcher-35228-1149368762 -o ROOT/results/node35/solver-35228-1149368762 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node35/35228-1149368762/instance-35228-1149368762.opb

MD5SUM SOLVER= 490d1d4b9bbf010afe7f0af63a5a62db
MD5SUM BENCH=  5c5bb330d1cbd0e2ab066594a5d2a4de

RANDOM SEED= 691934535


/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.210
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.210
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1416080 kB
Buffers:         32572 kB
Cached:         538564 kB
SwapCached:       3872 kB
Active:         109700 kB
Inactive:       470284 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1416080 kB
SwapTotal:     4192956 kB
SwapFree:      4180888 kB
Dirty:             276 kB
Writeback:           0 kB
Mapped:          14936 kB
Slab:            45872 kB
Committed_AS:   397508 kB
PageTables:       1432 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node35 on Sat Jun  3 21:06:08 UTC 2006