Trace number 1095840

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 zaoUNSAT 0.195969 0.208175

DiagnosticValue
CHECKS83701

General information on the benchmark

Namecsp/subs/
normalized-scen07-sub2.xml
MD5SUMde140d245256cc8224c76a3e8205f0ca
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.090985
Satisfiable
(Un)Satisfiability was proved
Number of variables32
Number of constraints369
Maximum constraint arity2
Maximum domain size44
Number of constraints which are defined in extension0
Number of constraints which are defined in intension369
Global constraints used (with number of constraints)

Solver Data (download as text)

0.18/0.20	c [ This is CaSPERzao (C) mvc@di.fct.unl.pt ]
0.18/0.20	c Parsing = 1
0.18/0.20	c Building = 1
0.18/0.20	c [ NumberOfVariables = 32 ]
0.18/0.20	c [ NumberOfConstraints = 369 ]
0.18/0.20	c [ SizeOfSearchSpace(log2) = 173.544 ]
0.18/0.20	c SymmetrySearch = 1
0.18/0.20	c [ Found 24 symmetries ]
0.18/0.20	c InitialPropagation = 1
0.18/0.20	c [ SizeOfSearchSpace(log2) = 173.544 ]
0.18/0.20	c InitialSAC = 0
0.18/0.20	s UNSATISFIABLE
0.18/0.20	d CHECKS 83701
0.18/0.20	c [ TotalFails = 0 ]
0.18/0.20	c [ NumberOfRestarts = 0 ]
0.18/0.20	c [ TotalTime = 0.168497 secs ]

Verifier Data (download as text)

No possible verification on an UNSAT instance

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-1095840-1215280742/watcher-1095840-1215280742 -o /tmp/evaluation-result-1095840-1215280742/solver-1095840-1215280742 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/casperzao HOME/instance-1095840-1215280742.xml 1146754207 

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: 2.15 2.14 2.09 4/72 24976
/proc/meminfo: memFree=1809688/2055920 swapFree=4180540/4192956
[pid=24976] ppid=24974 vsize=1056 CPUtime=0
/proc/24976/stat : 24976 (casperzao) R 24974 24976 21218 0 -1 4194304 40 0 0 0 0 0 0 0 19 0 1 0 2007048604 1081344 26 996147200 134512640 135477443 4294956224 18446744073709551615 7861028 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/24976/statm: 264 26 20 235 0 3 0

[startup+0.133474 s]
/proc/loadavg: 2.15 2.14 2.09 4/72 24976
/proc/meminfo: memFree=1809688/2055920 swapFree=4180540/4192956
[pid=24976] ppid=24974 vsize=286844 CPUtime=0.11
/proc/24976/stat : 24976 (casperzao) R 24974 24976 21218 0 -1 4194304 1480 0 0 0 10 1 0 0 18 0 1 0 2007048604 293728256 732 996147200 134512640 135477443 4294956224 18446744073709551615 135219073 0 0 4096 0 0 0 0 17 1 0 0
/proc/24976/statm: 71711 732 458 235 0 70412 0
Current children cumulated CPU time (s) 0.11
Current children cumulated vsize (KiB) 286844

[startup+0.201479 s]
/proc/loadavg: 2.15 2.14 2.09 4/72 24976
/proc/meminfo: memFree=1809688/2055920 swapFree=4180540/4192956
[pid=24976] ppid=24974 vsize=99712 CPUtime=0.18
/proc/24976/stat : 24976 (casperzao) R 24974 24976 21218 0 -1 4194304 1669 0 0 0 17 1 0 0 18 0 1 0 2007048604 102105088 898 996147200 134512640 135477443 4294956224 18446744073709551615 134921123 0 0 4096 0 0 0 0 17 1 0 0
/proc/24976/statm: 24928 898 508 235 0 23629 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 99712

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

Child status: 0
Real time (s): 0.208175
CPU time (s): 0.195969
CPU user time (s): 0.177972
CPU system time (s): 0.017997
CPU usage (%): 94.1367
Max. virtual memory (cumulated for all children) (KiB): 286844

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.177972
system time used= 0.017997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1673
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= 18
involuntary context switches= 2

runsolver used 0.002999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node18 at 2008-07-05 19:59:02
IDJOB=1095840
IDBENCH=58932
IDSOLVER=361
FILE ID=node18/1095840-1215280742
PBS_JOBID= 7882140
Free space on /tmp= 66556 MiB

SOLVER NAME= casper zao
BENCH NAME= CPAI08/csp/subs/normalized-scen07-sub2.xml
COMMAND LINE= HOME/casperzao BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1095840-1215280742/watcher-1095840-1215280742 -o /tmp/evaluation-result-1095840-1215280742/solver-1095840-1215280742 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/casperzao HOME/instance-1095840-1215280742.xml 1146754207 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= de140d245256cc8224c76a3e8205f0ca
RANDOM SEED=1146754207

node18.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		: 3000.268
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	: 5931.00
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		: 3000.268
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:       1810168 kB
Buffers:         20000 kB
Cached:         138956 kB
SwapCached:       6012 kB
Active:          86024 kB
Inactive:       105804 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1810168 kB
SwapTotal:     4192956 kB
SwapFree:      4180540 kB
Dirty:            3320 kB
Writeback:           0 kB
Mapped:          40540 kB
Slab:            39488 kB
Committed_AS:  3597800 kB
PageTables:       1732 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= 66552 MiB
End job on node18 at 2008-07-05 19:59:02