Trace number 1043396

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 zaoSAT 0.070988 0.0788941

DiagnosticValue
CHECKS14332

General information on the benchmark

Namecsp/QG4/
normalized-quasigroup4-5.xml
MD5SUM579069250876c3001771c4e5b4baf69a
Bench CategoryGLOBAL (global constraints)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014997
Satisfiable
(Un)Satisfiability was proved
Number of variables80
Number of constraints59
Maximum constraint arity27
Maximum domain size25
Number of constraints which are defined in extension0
Number of constraints which are defined in intension24
Global constraints used (with number of constraints)alldifferent(10),element(25)

Solver Data (download as text)

0.06/0.07	c [ This is CaSPERzao (C) mvc@di.fct.unl.pt ]
0.06/0.07	c Parsing = 1
0.06/0.07	c Building = 1
0.06/0.07	c [ NumberOfVariables = 80 ]
0.06/0.07	c [ NumberOfConstraints = 59 ]
0.06/0.07	c [ SizeOfSearchSpace(log2) = 169.506 ]
0.06/0.07	c SymmetrySearch = 1
0.06/0.07	c [ Found 120 symmetries ]
0.06/0.07	c InitialPropagation = 1
0.06/0.07	c [ SizeOfSearchSpace(log2) = 108.682 ]
0.06/0.07	c InitialSAC = 1
0.06/0.07	c [ SizeOfSearchSpace(log2) = 108.682 ]
0.06/0.07	c Search(SampleFF) : 
0.06/0.07	c [ Sampling domwdeg ]
0.06/0.07	c Search(SampleFF) = 1
0.06/0.07	s SATISFIABLE
0.06/0.07	v 1 3 5 2 4 5 2 4 1 3 4 1 3 5 2 3 5 2 4 1 2 4 1 3 5 1 1 1 23 1 20 1 12 1 9 1 15 2 1 7 2 4 2 21 2 18 2 24 3 16 3 1 13 3 10 3 2 3 8 4 5 4 22 4 1 19 4 11 4 17 5 14 5 6 5 3 5 1 25 5
0.06/0.07	d CHECKS 14332
0.06/0.07	c [ TotalFails = 0 ]
0.06/0.07	c [ NumberOfRestarts = 0 ]
0.06/0.07	c [ TotalTime = 0.0560302 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-1043396-1215028335/watcher-1043396-1215028335 -o /tmp/evaluation-result-1043396-1215028335/solver-1043396-1215028335 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/casperzao HOME/instance-1043396-1215028335.xml 808875731 

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: 2.00 2.00 1.99 4/73 28151
/proc/meminfo: memFree=1431192/2055920 swapFree=4179680/4192956
[pid=28151] ppid=28149 vsize=1056 CPUtime=0
/proc/28151/stat : 28151 (casperzao) R 28149 28151 27456 0 -1 4194304 40 0 0 0 0 0 0 0 19 0 1 0 1981806101 1081344 26 996147200 134512640 135477443 4294956224 18446744073709551615 1819428 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/28151/statm: 264 26 20 235 0 3 0

[startup+0.078052 s]
/proc/loadavg: 2.00 2.00 1.99 4/73 28151
/proc/meminfo: memFree=1431192/2055920 swapFree=4179680/4192956
[pid=28151] ppid=28149 vsize=99448 CPUtime=0.06
/proc/28151/stat : 28151 (casperzao) R 28149 28151 27456 0 -1 4194304 1036 0 0 0 6 0 0 0 18 0 1 0 1981806101 101834752 749 996147200 134512640 135477443 4294956224 18446744073709551615 135218703 0 0 4096 0 0 0 0 17 1 0 0
/proc/28151/statm: 24862 749 542 235 0 23563 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 99448

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

[startup+0.078052 s]
/proc/loadavg: 2.00 2.00 1.99 4/73 28151
/proc/meminfo: memFree=1431192/2055920 swapFree=4179680/4192956
[pid=28151] ppid=28149 vsize=99448 CPUtime=0.06
/proc/28151/stat : 28151 (casperzao) R 28149 28151 27456 0 -1 4194304 1036 0 0 0 6 0 0 0 18 0 1 0 1981806101 101834752 749 996147200 134512640 135477443 4294956224 18446744073709551615 135218703 0 0 4096 0 0 0 0 17 1 0 0
/proc/28151/statm: 24862 749 542 235 0 23563 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 99448

Child status: 0
Real time (s): 0.0788941
CPU time (s): 0.070988
CPU user time (s): 0.067989
CPU system time (s): 0.002999
CPU usage (%): 89.9788
Max. virtual memory (cumulated for all children) (KiB): 99448

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.067989
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1039
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= 2

runsolver used 0.001999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node54 at 2008-07-02 21:52:15
IDJOB=1043396
IDBENCH=53922
IDSOLVER=361
FILE ID=node54/1043396-1215028335
PBS_JOBID= 7874362
Free space on /tmp= 66548 MiB

SOLVER NAME= casper zao
BENCH NAME= CPAI08/csp/QG4/normalized-quasigroup4-5.xml
COMMAND LINE= HOME/casperzao BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1043396-1215028335/watcher-1043396-1215028335 -o /tmp/evaluation-result-1043396-1215028335/solver-1043396-1215028335 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/casperzao HOME/instance-1043396-1215028335.xml 808875731 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 579069250876c3001771c4e5b4baf69a
RANDOM SEED=808875731

node54.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		: 3000.279
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		: 3000.279
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:       1431608 kB
Buffers:         68792 kB
Cached:         464460 kB
SwapCached:       6668 kB
Active:         190296 kB
Inactive:       356520 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1431608 kB
SwapTotal:     4192956 kB
SwapFree:      4179680 kB
Dirty:            3132 kB
Writeback:           0 kB
Mapped:          20220 kB
Slab:            62828 kB
Committed_AS:  3809352 kB
PageTables:       1688 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66544 MiB
End job on node54 at 2008-07-02 21:52:15