Trace number 198668

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
Abscon 109 ESACUNSAT 0.642902 0.656493

DiagnosticValue
CHECKS394
NODES27

General information on the benchmark

Namepigeons/
pigeons-5.xml
MD5SUMaf10b766611f6271db3b862eafd154fe
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 benchmark0.010997
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables5
Number of constraints10
Maximum constraint arity2
Maximum domain size4
Number of constraints which are defined in extension0
Number of constraints which are defined in intension10
Global constraints used (with number of constraints)

Solver Data (download as text)

0.30	   
0.30	Abscon 109 (November, 2006)
0.30	   
0.30	   configuration
0.30	     name=esac.xml
0.33	   
0.33	   instance
0.33	     name=/tmp/evaluation/198668-1168130294/unknown.xml
0.36	   
0.36	   domains being loaded...
0.36	   
0.36	   variables being loaded...
0.39	     nbVariables=5  nbDomainTypes=1  minDomainSize=4  maxDomainSize=4
0.39	       =>  wckTime=0.093  cpuTime=0.08  mem=6M951
0.39	   
0.39	   predicates being loaded...
0.40	   
0.40	   constraints being loaded...
0.43	     nbConstraints=10  nbConvertedConstraints=10  nbConvertConstraintsChecks=16  nbExtensionStructures=1
0.43	     nbSharedExtensionStructures=9  nbConflictsStructures=1  nbSharedConflictsStructures=9
0.43	     nbSharedBinaryRepresentations=4  maxDegree=4  maxArity=2
0.43	       =>  wckTime=0.132  cpuTime=0.11  mem=7M927
0.46	   
0.46	   solver IterativeSystematicSolver being built... 
0.62	       =>  wckTime=0.321  cpuTime=0.25  mem=13M288
0.62	   
0.62	   preprocessing
0.62	     nbConstraintChecks=90  nbPropagations=38  nbRevisions=30  nbUselessRevisions=0  nbSingletonTests=9
0.62	     nbEffectiveSingletonTests=0  nbESACBranches=3  nbRemovedValues=0  detectedInconsistency=no
0.62	       =>  wckTime=0.0030  cpuTime=0.0  mem=13M288
0.63	   
0.63	   search
0.63	     run=0  nbConstraintChecks=198  nbPropagations=121  nbRevisions=114  nbUselessRevisions=1  nbAssignments=19
0.63	     nbFailedAssignments=8  nbBacktracks=11  nbVisitedNodes=36  nbRestartNogoods=0  mapSize=11  nbInferences=0
0.63	     nbTooLargeKeys=0
0.63	       =>  wckTime=0.012  cpuTime=0.01  mem=14M296
0.64	   
0.64	   search
0.64	     run=1  nbConstraintChecks=304  nbPropagations=278  nbRevisions=273  nbUselessRevisions=7  nbAssignments=27
0.64	     nbFailedAssignments=11  nbBacktracks=16  nbVisitedNodes=50  nbRestartNogoods=0  mapSize=15  nbInferences=1
0.64	     nbTooLargeKeys=0
0.64	       =>  wckTime=0.016  cpuTime=0.01  mem=14M296
0.64	   
0.64	   global
0.64	     nbConstraintChecks=394  nbPropagations=316  nbRevisions=303  nbUselessRevisions=7  nbRestartNogoods=0
0.64	     solvingWckTime=0.018  solvingCpuTime=0.01  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.64	     globalCpuTime=0.32
0.64	       =>  wckTime=0.34  cpuTime=0.26  mem=14M296
0.64	   
0.64	s UNSATISFIABLE
0.64	d NODES 27
0.64	d CHECKS 394
0.64	   
0.64	   totalWckTime=0.415  totalCpuTime=0.32

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node18/watcher-198668-1168130294 -o ROOT/results/node18/solver-198668-1168130294 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/198668-1168130294/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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: 1.48 1.87 1.89 4/82 9522
/proc/meminfo: memFree=1548008/2055920 swapFree=4192812/4192956
[pid=9521] ppid=9517 vsize=172 CPUtime=0
/proc/9521/stat : 9521 (java) R 9517 9521 9431 0 -1 0 217 0 0 0 0 0 0 0 21 0 1 0 161424489 176128 24 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 7861028 0 0 4096 0 0 0 0 17 0 0 0
/proc/9521/statm: 43 24 18 14 0 3 0

[startup+0.104865 s]
/proc/loadavg: 1.48 1.87 1.89 4/82 9522
/proc/meminfo: memFree=1548008/2055920 swapFree=4192812/4192956
[pid=9521] ppid=9517 vsize=914988 CPUtime=0.09
/proc/9521/stat : 9521 (java) R 9517 9521 9431 0 -1 0 3048 0 1 0 7 2 0 0 16 0 8 0 161424489 936947712 2794 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/9521/statm: 228747 2795 1447 14 0 215242 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 914988

[startup+0.512901 s]
/proc/loadavg: 1.48 1.87 1.89 4/82 9522
/proc/meminfo: memFree=1548008/2055920 swapFree=4192812/4192956
[pid=9521] ppid=9517 vsize=915444 CPUtime=0.49
/proc/9521/stat : 9521 (java) R 9517 9521 9431 0 -1 0 6789 0 1 0 44 5 0 0 16 0 8 0 161424489 937414656 6527 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/9521/statm: 228861 6527 2487 14 0 215331 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 915444

Child status: 0
Real time (s): 0.656493
CPU time (s): 0.642902
CPU user time (s): 0.571913
CPU system time (s): 0.070989
CPU usage (%): 97.9298
Max. virtual memory (cumulated for all children) (KiB): 915444

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.571913
system time used= 0.070989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8414
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= 367
involuntary context switches= 46

runsolver used 0.001999 s user time and 0.009998 s system time

The end

Launcher Data (download as text)

Begin job on node18 on Sun Jan  7 00:38:16 UTC 2007


IDJOB= 198668
IDBENCH= 3570
FILE ID= node18/198668-1168130294

PBS_JOBID= 3477734

Free space on /tmp= 66287 MiB

BENCH NAME= HOME/pub/bench/CPAI06/pigeons/pigeons-5.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/198668-1168130294/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-198668-1168130294 -o ROOT/results/node18/solver-198668-1168130294 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/198668-1168130294/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  af10b766611f6271db3b862eafd154fe

RANDOM SEED= 271247224

TIME LIMIT= 1800 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		: 3000.231
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		: 3000.231
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:       1548688 kB
Buffers:         36060 kB
Cached:         361992 kB
SwapCached:         20 kB
Active:         222132 kB
Inactive:       236324 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1548688 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2148 kB
Writeback:           0 kB
Mapped:          79372 kB
Slab:            34056 kB
Committed_AS:  4325448 kB
PageTables:       1920 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= 66287 MiB



End job on node18 on Sun Jan  7 00:38:20 UTC 2007