Trace number 198412

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 0.752884 0.845412

DiagnosticValue
CHECKS6706
NODES0

General information on the benchmark

Namepigeons/
pigeons-20-ord.xml
MD5SUM50aabcc3ef01e29d19a6a938b0592422
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 benchmark0.045992
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables20
Number of constraints380
Maximum constraint arity2
Maximum domain size19
Number of constraints which are defined in extension0
Number of constraints which are defined in intension380
Global constraints used (with number of constraints)

Solver Data (download as text)

0.33	   
0.33	Abscon 109 (November, 2006)
0.33	   
0.33	   configuration
0.33	     name=esac.xml
0.36	   
0.36	   instance
0.36	     name=/tmp/evaluation/198412-1168128382/unknown.xml
0.39	   
0.39	   domains being loaded...
0.39	   
0.39	   variables being loaded...
0.43	     nbVariables=20  nbDomainTypes=1  minDomainSize=19  maxDomainSize=19
0.43	       =>  wckTime=0.093  cpuTime=0.08  mem=6M951
0.43	   
0.43	   predicates being loaded...
0.43	   
0.43	   constraints being loaded...
0.59	     nbConstraints=190  nbMergedConstraints=190  nbConvertedConstraints=190  nbConvertConstraintsChecks=361
0.59	     nbExtensionStructures=1  nbSharedExtensionStructures=189  nbConflictsStructures=1  nbSharedConflictsStructures=189
0.59	     nbSharedBinaryRepresentations=1  maxDegree=19  maxArity=2
0.59	       =>  wckTime=0.259  cpuTime=0.2  mem=8M902
0.62	   
0.62	   solver IterativeSystematicSolver being built... 
0.78	       =>  wckTime=0.445  cpuTime=0.31  mem=13M404
0.79	   
0.79	   preprocessing
0.79	     nbConstraintChecks=6706  nbPropagations=19  nbRevisions=532  nbUselessRevisions=324  nbRemovedValues=208
0.79	     detectedInconsistency=yes
0.79	       =>  wckTime=0.01  cpuTime=0.01  mem=13M404
0.79	   
0.79	   global
0.79	     nbConstraintChecks=6706  nbPropagations=19  nbRevisions=532  nbUselessRevisions=324  nbRestartNogoods=0
0.79	     solvingWckTime=0.011  solvingCpuTime=0.01  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.79	     globalCpuTime=0.38
0.79	       =>  wckTime=0.458  cpuTime=0.33  mem=13M404
0.79	   
0.79	s UNSATISFIABLE
0.79	d NODES 0
0.79	d CHECKS 6706
0.79	   
0.79	   totalWckTime=0.535  totalCpuTime=0.38

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/node60/watcher-198412-1168128382 -o ROOT/results/node60/solver-198412-1168128382 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/198412-1168128382/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: 0.92 1.33 1.54 4/68 28379
/proc/meminfo: memFree=1745648/2055920 swapFree=4192812/4192956
[pid=28378] ppid=28376 vsize=168 CPUtime=0
/proc/28378/stat : 28378 (java) R 28376 28378 28235 0 -1 0 39 0 0 0 0 0 0 0 20 0 1 0 161236251 172032 23 18446744073709551615 134512640 134570532 4294956624 18446744073709551615 5533995 0 0 4096 0 0 0 0 17 1 0 0
/proc/28378/statm: 42 23 18 14 0 2 0

[startup+0.10696 s]
/proc/loadavg: 0.92 1.33 1.54 4/68 28379
/proc/meminfo: memFree=1745648/2055920 swapFree=4192812/4192956
[pid=28378] ppid=28376 vsize=911488 CPUtime=0.06
/proc/28378/stat : 28378 (java) R 28376 28378 28235 0 -1 0 2623 0 1 0 5 1 0 0 22 0 8 0 161236251 933363712 2370 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4154100209 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/28378/statm: 227872 2370 1280 14 0 215051 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 911488

[startup+0.519002 s]
/proc/loadavg: 0.92 1.33 1.54 4/68 28379
/proc/meminfo: memFree=1745648/2055920 swapFree=4192812/4192956
[pid=28378] ppid=28376 vsize=915328 CPUtime=0.46
/proc/28378/stat : 28378 (java) R 28376 28378 28235 0 -1 0 6295 0 1 0 42 4 0 0 24 0 8 0 161236251 937295872 6034 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/28378/statm: 228832 6034 2145 14 0 215302 0
Current children cumulated CPU time (s) 0.46
Current children cumulated vsize (KiB) 915328

Child status: 0
Real time (s): 0.845412
CPU time (s): 0.752884
CPU user time (s): 0.686895
CPU system time (s): 0.065989
CPU usage (%): 89.0553
Max. virtual memory (cumulated for all children) (KiB): 915468

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.686895
system time used= 0.065989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8411
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= 722
involuntary context switches= 768

runsolver used 0.004999 s user time and 0.003999 s system time

The end

Launcher Data (download as text)

Begin job on node60 on Sun Jan  7 00:06:22 UTC 2007


IDJOB= 198412
IDBENCH= 3554
FILE ID= node60/198412-1168128382

PBS_JOBID= 3477946

Free space on /tmp= 66552 MiB

BENCH NAME= HOME/pub/bench/CPAI06/pigeons/pigeons-20-ord.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/198412-1168128382/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node60/watcher-198412-1168128382 -o ROOT/results/node60/solver-198412-1168128382 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/198412-1168128382/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  50aabcc3ef01e29d19a6a938b0592422

RANDOM SEED= 615080660

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		: 3000.236
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		: 3000.236
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:       1746248 kB
Buffers:         11388 kB
Cached:         230012 kB
SwapCached:          0 kB
Active:         186612 kB
Inactive:        74792 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1746248 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2248 kB
Writeback:           0 kB
Mapped:          30204 kB
Slab:            33956 kB
Committed_AS:  3508676 kB
PageTables:       1684 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 node60 on Sun Jan  7 00:06:27 UTC 2007