Trace number 459676

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
PBS4_v2 2007-03-23OPT2 0.420935 0.422514

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mds/normalized-mds_50_25_4.opb
MD5SUMa45f8d339393416b6aacc4f79e0ac23e
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark2
Best CPU time to get the best result obtained on this benchmark0.198968
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2
Optimality of the best value was proved YES
Number of variables50
Total number of constraints50
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 constraints50
Minimum length of a constraint26
Maximum length of a constraint38
Number of terms in the objective function 50
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 50
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 50
Number of bits of the biggest sum of numbers6
Number of products (including duplicates)1466
Sum of products size (including duplicates)2932
Number of different products1466
Sum of products size2932

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)

0.00/0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/459676-1178658033/instance-459676-1178658033.opb ......
0.00/0.03	c done parsing opb.
0.00/0.03	o 25
0.00/0.03	o 19
0.00/0.03	o 18
0.00/0.03	o 17
0.00/0.03	o 16
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0.00/0.03	o 14
0.00/0.04	o 13
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0.00/0.04	o 11
0.00/0.04	o 10
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0.00/0.04	o 8
0.00/0.04	o 7
0.00/0.04	o 6
0.00/0.04	o 5
0.00/0.04	o 4
0.00/0.05	o 3
0.39/0.41	o 2
0.39/0.41	o 2
0.39/0.41	s OPTIMUM FOUND
0.39/0.41	c Total Run Time					0.384942
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Verifier Data (download as text)

OK	2

Conversion Script Data (download as text)

Linearizing /tmp/evaluation/459676-1178658033/instance-459676-1178658033.opb

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node20/watcher-459676-1178658033 -o ROOT/results/node20/solver-459676-1178658033 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/459676-1178658033/instance-459676-1178658033.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 3600 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.99 0.97 0.97 3/77 23598
/proc/meminfo: memFree=1775208/2055920 swapFree=4154856/4192956
[pid=23598] ppid=23596 vsize=1468 CPUtime=0
/proc/23598/stat : 23598 (PBS4_SAT07v2) R 23596 23598 23360 0 -1 4194304 183 0 0 0 0 0 0 0 18 0 1 0 313720654 1503232 165 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 134530024 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23598/statm: 367 165 86 219 0 144 0

[startup+0.093124 s]
/proc/loadavg: 0.99 0.97 0.97 3/77 23598
/proc/meminfo: memFree=1775208/2055920 swapFree=4154856/4192956
[pid=23598] ppid=23596 vsize=2012 CPUtime=0.08
/proc/23598/stat : 23598 (PBS4_SAT07v2) R 23596 23598 23360 0 -1 4194304 329 0 0 0 8 0 0 0 18 0 1 0 313720654 2060288 311 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23598/statm: 503 311 102 219 0 280 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 2012

[startup+0.101125 s]
/proc/loadavg: 0.99 0.97 0.97 3/77 23598
/proc/meminfo: memFree=1775208/2055920 swapFree=4154856/4192956
[pid=23598] ppid=23596 vsize=2012 CPUtime=0.09
/proc/23598/stat : 23598 (PBS4_SAT07v2) R 23596 23598 23360 0 -1 4194304 330 0 0 0 9 0 0 0 18 0 1 0 313720654 2060288 312 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23598/statm: 503 312 102 219 0 280 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2012

[startup+0.301165 s]
/proc/loadavg: 0.99 0.97 0.97 3/77 23598
/proc/meminfo: memFree=1775208/2055920 swapFree=4154856/4192956
[pid=23598] ppid=23596 vsize=2176 CPUtime=0.29
/proc/23598/stat : 23598 (PBS4_SAT07v2) R 23596 23598 23360 0 -1 4194304 368 0 0 0 29 0 0 0 19 0 1 0 313720654 2228224 350 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 134588758 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23598/statm: 544 350 102 219 0 321 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2176

Solver just ended. Dumping a history of the last processes samples

[startup+0.401185 s]
/proc/loadavg: 0.99 0.97 0.97 3/77 23598
/proc/meminfo: memFree=1775208/2055920 swapFree=4154856/4192956
[pid=23598] ppid=23596 vsize=2176 CPUtime=0.39
/proc/23598/stat : 23598 (PBS4_SAT07v2) R 23596 23598 23360 0 -1 4194304 391 0 0 0 39 0 0 0 19 0 1 0 313720654 2228224 373 18446744073709551615 134512640 135410602 4294956688 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/23598/statm: 544 373 102 219 0 321 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 2176

Child status: 0
Real time (s): 0.422514
CPU time (s): 0.420935
CPU user time (s): 0.413937
CPU system time (s): 0.006998
CPU usage (%): 99.6263
Max. virtual memory (cumulated for all children) (KiB): 2176

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.413937
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 407
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 8
involuntary context switches= 0

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node20 on Tue May  8 21:00:33 UTC 2007

IDJOB= 459676
IDBENCH= 48137
IDSOLVER= 200
FILE ID= node20/459676-1178658033

PBS_JOBID= 5218013

Free space on /tmp= 66562 MiB

SOLVER NAME= PBS4_v2 2007-03-23
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mds/normalized-mds_50_25_4.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/459676-1178658033/instance-459676-1178658033.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node20/convwatcher-459676-1178658033 -o ROOT/results/node20/conversion-459676-1178658033 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/459676-1178658033/instance-459676-1178658033.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node20/watcher-459676-1178658033 -o ROOT/results/node20/solver-459676-1178658033 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/459676-1178658033/instance-459676-1178658033.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  a45f8d339393416b6aacc4f79e0ac23e

RANDOM SEED= 637711906

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node20.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.265
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		: 3000.265
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:       1775616 kB
Buffers:         37904 kB
Cached:         155240 kB
SwapCached:      16228 kB
Active:          97256 kB
Inactive:       118544 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1775616 kB
SwapTotal:     4192956 kB
SwapFree:      4154856 kB
Dirty:            2376 kB
Writeback:           0 kB
Mapped:          29656 kB
Slab:            50060 kB
Committed_AS:  6724328 kB
PageTables:       1744 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66562 MiB

End job on node20 on Tue May  8 21:00:34 UTC 2007