Trace number 1084453

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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 NameAnswerCPU timeWall clock time
casper zitoSAT 1.15182 1.16203

DiagnosticValue
CHECKS6094220

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-19.xml
MD5SUMc3b020e864d23a3e1aa459c4a03e8262
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.030994
Satisfiable
(Un)Satisfiability was proved
Number of variables38
Number of constraints722
Maximum constraint arity2
Maximum domain size38
Number of constraints which are defined in extension0
Number of constraints which are defined in intension722
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.05	c [ This is CaSPERzito (C) mvc@di.fct.unl.pt ]
0.00/0.05	c Parsing = 1
0.00/0.05	c Building = 1
0.00/0.05	c [ NumberOfVariables = 38 ]
0.00/0.05	c [ NumberOfConstraints = 722 ]
0.00/0.05	c [ SizeOfSearchSpace(log2) = 199.421 ]
0.00/0.05	c SymmetrySearch = 1
0.00/0.05	c InitialPropagation = 1
0.00/0.05	c [ SizeOfSearchSpace(log2) = 179.513 ]
0.00/0.05	c InitialSAC = 1
0.00/0.05	c [ SizeOfSearchSpace(log2) = 179.513 ]
0.00/0.05	c Search(SampleFF) : 
1.08/1.16	c [ Sampling domwdeg ]
1.08/1.16	c Search(SampleFF) = 1
1.08/1.16	s SATISFIABLE
1.08/1.16	v 30 31 33 7 29 8 28 4 9 16 14 10 11 3 1 5 6 2 0 32 34 37 12 35 15 36 13 19 27 26 23 25 18 17 22 24 21 20
1.08/1.16	d CHECKS 6094224
1.08/1.16	c [ TotalFails = 1017 ]
1.08/1.16	c [ NumberOfRestarts = 5 ]
1.08/1.16	c [ TotalTime = 1.056 secs ]

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1084453-1215230393/watcher-1084453-1215230393 -o /tmp/evaluation-result-1084453-1215230393/solver-1084453-1215230393 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/casperzito HOME/instance-1084453-1215230393.xml 823815475 

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): 2200 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 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: 1.96 2.04 2.01 4/72 1101
/proc/meminfo: memFree=1253520/2055920 swapFree=4180448/4192956
[pid=1101] ppid=1099 vsize=3704 CPUtime=0
/proc/1101/stat : 1101 (casperzito) D 1099 1101 629 0 -1 4194304 73 0 0 0 0 0 0 0 18 0 1 0 2002013878 3792896 55 996147200 134512640 135472138 4294956224 18446744073709551615 2605860 0 2147483391 4096 0 18446744072099855350 0 0 17 1 0 0
/proc/1101/statm: 926 55 40 234 0 20 0

[startup+0.209657 s]
/proc/loadavg: 1.96 2.04 2.01 4/72 1101
/proc/meminfo: memFree=1253520/2055920 swapFree=4180448/4192956
[pid=1101] ppid=1099 vsize=99436 CPUtime=0.19
/proc/1101/stat : 1101 (casperzito) R 1099 1101 629 0 -1 4194304 788 0 0 0 19 0 0 0 19 0 1 0 2002013878 101822464 739 996147200 134512640 135472138 4294956224 18446744073709551615 135264881 0 0 4096 0 0 0 0 17 1 0 0
/proc/1101/statm: 24859 739 485 234 0 23561 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 99436

[startup+0.301759 s]
/proc/loadavg: 1.96 2.04 2.01 4/72 1101
/proc/meminfo: memFree=1253520/2055920 swapFree=4180448/4192956
[pid=1101] ppid=1099 vsize=99436 CPUtime=0.28
/proc/1101/stat : 1101 (casperzito) R 1099 1101 629 0 -1 4194304 788 0 0 0 28 0 0 0 19 0 1 0 2002013878 101822464 739 996147200 134512640 135472138 4294956224 18446744073709551615 135202788 0 0 4096 0 0 0 0 17 1 0 0
/proc/1101/statm: 24859 739 485 234 0 23561 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 99436

[startup+0.401764 s]
/proc/loadavg: 1.96 2.04 2.01 4/72 1101
/proc/meminfo: memFree=1253520/2055920 swapFree=4180448/4192956
[pid=1101] ppid=1099 vsize=99436 CPUtime=0.38
/proc/1101/stat : 1101 (casperzito) R 1099 1101 629 0 -1 4194304 788 0 0 0 38 0 0 0 20 0 1 0 2002013878 101822464 739 996147200 134512640 135472138 4294956224 18446744073709551615 135262945 0 0 4096 0 0 0 0 17 1 0 0
/proc/1101/statm: 24859 739 485 234 0 23561 0
Current children cumulated CPU time (s) 0.38
Current children cumulated vsize (KiB) 99436

[startup+0.701706 s]
/proc/loadavg: 1.96 2.04 2.01 4/72 1101
/proc/meminfo: memFree=1253520/2055920 swapFree=4180448/4192956
[pid=1101] ppid=1099 vsize=99436 CPUtime=0.68
/proc/1101/stat : 1101 (casperzito) R 1099 1101 629 0 -1 4194304 796 0 0 0 68 0 0 0 23 0 1 0 2002013878 101822464 747 996147200 134512640 135472138 4294956224 18446744073709551615 135263234 0 0 4096 0 0 0 0 17 1 0 0
/proc/1101/statm: 24859 747 485 234 0 23561 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 99436

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

[startup+0.901727 s]
/proc/loadavg: 1.96 2.04 2.01 4/72 1101
/proc/meminfo: memFree=1253520/2055920 swapFree=4180448/4192956
[pid=1101] ppid=1099 vsize=99436 CPUtime=0.88
/proc/1101/stat : 1101 (casperzito) R 1099 1101 629 0 -1 4194304 796 0 0 0 88 0 0 0 25 0 1 0 2002013878 101822464 747 996147200 134512640 135472138 4294956224 18446744073709551615 135265500 0 0 4096 0 0 0 0 17 1 0 0
/proc/1101/statm: 24859 747 485 234 0 23561 0
Current children cumulated CPU time (s) 0.88
Current children cumulated vsize (KiB) 99436

[startup+1.10175 s]
/proc/loadavg: 1.96 2.04 2.01 4/72 1101
/proc/meminfo: memFree=1253520/2055920 swapFree=4180448/4192956
[pid=1101] ppid=1099 vsize=99436 CPUtime=1.08
/proc/1101/stat : 1101 (casperzito) R 1099 1101 629 0 -1 4194304 796 0 0 0 108 0 0 0 25 0 1 0 2002013878 101822464 747 996147200 134512640 135472138 4294956224 18446744073709551615 135262992 0 0 4096 0 0 0 0 17 1 0 0
/proc/1101/statm: 24859 747 485 234 0 23561 0
Current children cumulated CPU time (s) 1.08
Current children cumulated vsize (KiB) 99436

Child status: 0
Real time (s): 1.16203
CPU time (s): 1.15182
CPU user time (s): 1.14283
CPU system time (s): 0.008998
CPU usage (%): 99.1221
Max. virtual memory (cumulated for all children) (KiB): 99436

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.14283
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 799
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= 16
involuntary context switches= 25

runsolver used 0.006998 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node24 at 2008-07-05 05:59:53
IDJOB=1084453
IDBENCH=57558
IDSOLVER=362
FILE ID=node24/1084453-1215230393
PBS_JOBID= 7881902
Free space on /tmp= 66456 MiB

SOLVER NAME= casper zito
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-19.xml
COMMAND LINE= HOME/casperzito BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1084453-1215230393/watcher-1084453-1215230393 -o /tmp/evaluation-result-1084453-1215230393/solver-1084453-1215230393 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/casperzito HOME/instance-1084453-1215230393.xml 823815475 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= c3b020e864d23a3e1aa459c4a03e8262
RANDOM SEED=823815475

node24.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.232
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		: 3000.232
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:       1254000 kB
Buffers:         70960 kB
Cached:         292812 kB
SwapCached:       6556 kB
Active:         546592 kB
Inactive:       185992 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1254000 kB
SwapTotal:     4192956 kB
SwapFree:      4180448 kB
Dirty:            3428 kB
Writeback:           0 kB
Mapped:         376804 kB
Slab:            53800 kB
Committed_AS:  4034276 kB
PageTables:       2544 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= 66452 MiB
End job on node24 at 2008-07-05 05:59:54