Trace number 279236

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 NameAnswerCPU timeWall clock time
AbsconMax 109 PFCSAT 0.837871 0.866642

General information on the benchmark

NameMaxCSP/kbtree/kbtree-9-5-3-5/kbtree-9-5-3-5-10/
kbtree-9-5-3-5-10-11_ext.xml
MD5SUM0240748faf11fccbe78eebd68af57859
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best Number of satisfied constraints255
Best CPU time to get the best result obtained on this benchmark0.077987
SatisfiableYES
(Un)Satisfiability was proved
Number of variables40
Number of constraints255
Maximum constraint arity2
Maximum domain size5
Number of constraints which are defined in extension255
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

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)

0.31	   
0.31	Abscon 109 (November, 2006)
0.31	   
0.31	   configuration
0.31	     name=pfc.xml
0.34	   
0.34	   instance
0.34	     name=/tmp/evaluation/279236-1169291823/unknown.xml
0.37	   
0.37	   domains being loaded...
0.38	   
0.38	   variables being loaded...
0.41	     nbVariables=40  nbDomainTypes=1  minDomainSize=5  maxDomainSize=5
0.41	       =>  wckTime=0.102  cpuTime=0.08  mem=6M910
0.41	   
0.41	   relations being loaded...
0.45	   
0.46	   constraints being loaded...
0.56	     nbConstraints=255  nbRelationTypes=175  nbExtensionStructures=175  nbSharedExtensionStructures=80
0.56	     nbConflictsStructures=175  nbSharedConflictsStructures=80  nbSharedBinaryRepresentations=1734  maxDegree=24
0.56	     maxArity=2
0.56	       =>  wckTime=0.246  cpuTime=0.17  mem=8M860
0.60	   
0.60	   solver LocalSearchSolver being built... 
0.64	       =>  wckTime=0.333  cpuTime=0.22  mem=5M565
0.65	
0.65	s SATISFIABLE
0.65	o 236
0.65	c 19
0.65	o 239
0.65	c 16
0.65	o 241
0.65	c 14
0.65	o 243
0.65	c 12
0.65	o 245
0.65	c 10
0.65	o 247
0.65	c 8
0.65	o 248
0.65	c 7
0.65	o 249
0.65	c 6
0.65	o 250
0.65	c 5
0.65	o 251
0.65	c 4
0.65	o 252
0.65	c 3
0.65	o 253
0.65	c 2
0.65	o 254
0.65	c 1
0.66	   
0.66	   search
0.66	     run=0  nbConstraintChecks=3606  nbAssignments=13
0.66	       =>  wckTime=0.014  cpuTime=0.01  mem=5M565
0.66	   
0.66	   global
0.66	     nbConstraintChecks=3606  nbValidityChecks=0  nbPropagations=0  nbRevisions=0  nbUselessRevisions=0
0.66	     solvingWckTime=0.013  solvingCpuTime=0.0  expiredTime=no  totalExploration=no  nbFoundSolutions=0
0.66	     globalCpuTime=0.27
0.66	       =>  wckTime=0.348  cpuTime=0.22  mem=5M565
0.66	   
0.66	   solver IterativeSystematicSolver being built... 
0.79	       =>  wckTime=0.48  cpuTime=0.33  mem=16M514
0.80	   
0.80	   preprocessing
0.80	     nbConstraintChecks=0  nbPropagations=0  nbRevisions=0  nbUselessRevisions=0  nbRemovedValues=0
0.80	     detectedInconsistency=no
0.80	       =>  wckTime=0.0070  cpuTime=0.0  mem=16M514
0.83	o 255
0.83	c 0
0.84	   
0.84	   search
0.84	     run=0  nbConstraintChecks=29576  nbPropagations=0  nbRevisions=0  nbUselessRevisions=0  nbAssignments=40
0.84	     nbFailedAssignments=0  nbBacktracks=40  nbVisitedNodes=77  nbRestartNogoods=0
0.84	       =>  wckTime=0.05  cpuTime=0.03  mem=16M514
0.84	   
0.84	   search
0.84	     run=0  nbConstraintChecks=29576  nbPropagations=0  nbRevisions=0  nbUselessRevisions=0  nbAssignments=40
0.84	     nbFailedAssignments=0  nbBacktracks=40  nbVisitedNodes=77  nbRestartNogoods=0
0.84	       =>  wckTime=0.05  cpuTime=0.03  mem=16M514
0.84	   
0.84	   global
0.84	     nbConstraintChecks=29576  nbRestartNogoods=0  solvingWckTime=0.053  solvingCpuTime=0.03  expiredTime=no
0.84	     totalExploration=yes  nbFoundSolutions=1  globalCpuTime=0.41
0.84	       =>  wckTime=0.534  cpuTime=0.36  mem=16M514
0.85	
0.85	s OPTIMUM FOUND
0.85	v 1 1 0 1 2 0 2 1 0 1 0 0 0 1 1 0 0 2 0 2 0 0 0 1 2 0 2 2 1 2 0 0 0 0 1 0 3 1 0 0 
0.85	   
0.85	   totalWckTime=0.613  totalCpuTime=0.41

Verifier Data (download as text)

0 unsatisfied constraints, 255 satisfied constraints

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node34/watcher-279236-1169291823 -o ROOT/results/node34/solver-279236-1169291823 -C 2400 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar pfc.xml 1 XSax /tmp/evaluation/279236-1169291823/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 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
Current StackSize limit: 10240 KiB

/proc/loadavg: 1.56 1.89 1.91 4/70 22695
/proc/meminfo: memFree=968336/2055920 swapFree=4192812/4192956
[pid=22694] ppid=22691 vsize=18540 CPUtime=0
/proc/22694/stat : 22694 (runsolver) R 22691 22694 22586 0 -1 4194368 17 0 0 0 0 0 0 0 18 0 1 0 277576247 18984960 279 18446744073709551615 4194304 4267372 548682068960 18446744073709551615 254195330343 0 0 4096 24578 0 0 0 17 1 0 0
/proc/22694/statm: 4635 279 244 17 0 2626 0

[startup+0.105548 s]
/proc/loadavg: 1.56 1.89 1.91 4/70 22695
/proc/meminfo: memFree=968336/2055920 swapFree=4192812/4192956
[pid=22694] ppid=22691 vsize=914988 CPUtime=0.08
/proc/22694/stat : 22694 (java) R 22691 22694 22586 0 -1 0 3005 0 1 0 7 1 0 0 17 0 8 0 277576247 936947712 2751 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/22694/statm: 228747 2752 1430 14 0 215242 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 914988

[startup+0.513582 s]
/proc/loadavg: 1.56 1.89 1.91 4/70 22695
/proc/meminfo: memFree=968336/2055920 swapFree=4192812/4192956
[pid=22694] ppid=22691 vsize=915332 CPUtime=0.49
/proc/22694/stat : 22694 (java) R 22691 22694 22586 0 -1 0 6448 0 1 0 46 3 0 0 18 0 8 0 277576247 937299968 6187 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/22694/statm: 228833 6187 2147 14 0 215303 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 915332

Child status: 0
Real time (s): 0.866642
CPU time (s): 0.837871
CPU user time (s): 0.764883
CPU system time (s): 0.072988
CPU usage (%): 96.6802
Max. virtual memory (cumulated for all children) (KiB): 915456

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.764883
system time used= 0.072988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9086
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 787
involuntary context switches= 873

runsolver used 0.005999 s user time and 0.006998 s system time

The end

Launcher Data (download as text)

Begin job on node34 on Sat Jan 20 11:17:04 UTC 2007


IDJOB= 279236
IDBENCH= 9666
IDSOLVER= 69
FILE ID= node34/279236-1169291823

PBS_JOBID= 3609698

Free space on /tmp= 66561 MiB

SOLVER NAME= AbsconMax 109 PFC
BENCH NAME= HOME/pub/bench/CPAI06/MaxCSP/kbtree/kbtree-9-5-3-5/kbtree-9-5-3-5-10/kbtree-9-5-3-5-10-11_ext.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar pfc.xml 1 XSax /tmp/evaluation/279236-1169291823/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node34/watcher-279236-1169291823 -o ROOT/results/node34/solver-279236-1169291823 -C 2400 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar pfc.xml 1 XSax /tmp/evaluation/279236-1169291823/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  0240748faf11fccbe78eebd68af57859

RANDOM SEED= 542168051

TIME LIMIT= 2400 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.227
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		: 3000.227
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:        969216 kB
Buffers:         42432 kB
Cached:         951184 kB
SwapCached:          0 kB
Active:         350216 kB
Inactive:       663540 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        969216 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3816 kB
Writeback:           0 kB
Mapped:          30296 kB
Slab:            58696 kB
Committed_AS:  4590644 kB
PageTables:       1596 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= 66561 MiB



End job on node34 on Sat Jan 20 11:17:06 UTC 2007