Trace number 200459

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 ACUNSAT 0.922859 0.992319

DiagnosticValue
CHECKS795442
NODES663

General information on the benchmark

NamequeensKnights/
queensKnights-10-5-mul.xml
MD5SUMcbc258ed026c4b607de8e359683e6583
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 benchmark0.382941
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables15
Number of constraints105
Maximum constraint arity2
Maximum domain size100
Number of constraints which are defined in extension0
Number of constraints which are defined in intension105
Global constraints used (with number of constraints)

Solver Data (download as text)

0.32	   
0.32	Abscon 109 (November, 2006)
0.32	   
0.32	   configuration
0.32	     name=mac.xml
0.35	   
0.35	   instance
0.35	     name=/tmp/evaluation/200459-1168072145/unknown.xml
0.39	   
0.39	   domains being loaded...
0.39	   
0.39	   variables being loaded...
0.42	     nbVariables=15  nbDomainTypes=2  minDomainSize=10  maxDomainSize=100
0.42	       =>  wckTime=0.099  cpuTime=0.08  mem=6M951
0.42	   
0.42	   predicates being loaded...
0.43	   
0.43	   constraints being loaded...
0.57	     nbConstraints=105  nbConvertedConstraints=105  nbConvertConstraintsChecks=30900  nbExtensionStructures=21
0.57	     nbSharedExtensionStructures=84  nbConflictsStructures=21  nbSharedConflictsStructures=84
0.57	     nbSharedBinaryRepresentations=1416  maxDegree=14  maxArity=2
0.57	       =>  wckTime=0.25  cpuTime=0.2  mem=8M902
0.61	   
0.61	   solver IterativeSystematicSolver being built... 
0.77	       =>  wckTime=0.444  cpuTime=0.32  mem=13M522
0.77	   
0.77	   preprocessing
0.77	     nbConstraintChecks=0  nbPropagations=15  nbRevisions=0  nbUselessRevisions=0  nbRemovedValues=0
0.77	     detectedInconsistency=no
0.77	       =>  wckTime=0.0010  cpuTime=0.0  mem=13M522
0.84	   
0.84	   search
0.84	     run=0  nbConstraintChecks=159765  nbPropagations=968  nbRevisions=2216  nbUselessRevisions=839  nbAssignments=148
0.84	     nbFailedAssignments=135  nbBacktracks=11  nbVisitedNodes=288  nbRestartNogoods=0  mapSize=6  nbInferences=0
0.84	     nbTooLargeKeys=0
0.84	       =>  wckTime=0.071  cpuTime=0.06  mem=13M522
0.87	   
0.87	   search
0.87	     run=1  nbConstraintChecks=309500  nbPropagations=2781  nbRevisions=6686  nbUselessRevisions=2573  nbAssignments=265
0.87	     nbFailedAssignments=233  nbBacktracks=28  nbVisitedNodes=515  nbRestartNogoods=2  mapSize=18  nbInferences=0
0.87	     nbTooLargeKeys=0
0.87	       =>  wckTime=0.104  cpuTime=0.08  mem=13M522
0.91	   
0.91	   search
0.91	     run=2  nbConstraintChecks=654340  nbPropagations=6537  nbRevisions=15298  nbUselessRevisions=5747
0.91	     nbAssignments=564  nbFailedAssignments=506  nbBacktracks=51  nbVisitedNodes=1093  nbRestartNogoods=5  mapSize=27
0.91	     nbInferences=0  nbTooLargeKeys=0
0.91	       =>  wckTime=0.145  cpuTime=0.12  mem=13M522
0.93	   
0.93	   search
0.93	     run=3  nbConstraintChecks=795442  nbPropagations=11027  nbRevisions=26140  nbUselessRevisions=10213
0.93	     nbAssignments=663  nbFailedAssignments=605  nbBacktracks=52  nbVisitedNodes=1291  nbRestartNogoods=7  mapSize=27
0.93	     nbInferences=0  nbTooLargeKeys=0
0.93	       =>  wckTime=0.161  cpuTime=0.13  mem=13M522
0.93	   
0.93	   global
0.93	     nbConstraintChecks=795442  nbPropagations=11042  nbRevisions=26140  nbUselessRevisions=10213  nbRestartNogoods=7
0.93	     solvingWckTime=0.163  solvingCpuTime=0.13  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.93	     globalCpuTime=0.51
0.93	       =>  wckTime=0.609  cpuTime=0.45  mem=13M522
0.93	   
0.93	s UNSATISFIABLE
0.93	d NODES 663
0.93	d CHECKS 795442
0.93	   
0.93	   totalWckTime=0.69  totalCpuTime=0.52

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/node12/watcher-200459-1168072145 -o ROOT/results/node12/solver-200459-1168072145 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/200459-1168072145/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: 2.01 2.01 1.96 2/93 19172
/proc/meminfo: memFree=1625064/2055920 swapFree=4160348/4192956
[pid=19171] ppid=19169 vsize=18540 CPUtime=0
/proc/19171/stat : 19171 (runsolver) R 19169 19171 18755 0 -1 4194368 17 0 0 0 0 0 0 0 24 0 1 0 155609542 18984960 279 18446744073709551615 4194304 4267372 548682068944 18446744073709551615 252429528359 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/19171/statm: 4635 279 244 17 0 2626 0

[startup+0.103239 s]
/proc/loadavg: 2.01 2.01 1.96 2/93 19172
/proc/meminfo: memFree=1625064/2055920 swapFree=4160348/4192956
[pid=19171] ppid=19169 vsize=913228 CPUtime=0.08
/proc/19171/stat : 19171 (java) S 19169 19171 18755 0 -1 0 2909 0 1 0 6 2 0 0 18 0 8 0 155609542 935145472 2655 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/19171/statm: 228307 2655 1396 14 0 215208 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 913228

[startup+0.515312 s]
/proc/loadavg: 2.01 2.01 1.96 2/93 19172
/proc/meminfo: memFree=1625064/2055920 swapFree=4160348/4192956
[pid=19171] ppid=19169 vsize=915460 CPUtime=0.49
/proc/19171/stat : 19171 (java) R 19169 19171 18755 0 -1 0 6525 0 1 0 45 4 0 0 18 0 8 0 155609542 937431040 6264 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4072926600 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/19171/statm: 228865 6264 2165 14 0 215335 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 915460

Child status: 0
Real time (s): 0.992319
CPU time (s): 0.922859
CPU user time (s): 0.85387
CPU system time (s): 0.068989
CPU usage (%): 93.0002
Max. virtual memory (cumulated for all children) (KiB): 915460

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.85387
system time used= 0.068989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8408
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= 826
involuntary context switches= 886

runsolver used 0.003999 s user time and 0.008998 s system time

The end

Launcher Data (download as text)

Begin job on node12 on Sat Jan  6 08:29:05 UTC 2007


IDJOB= 200459
IDBENCH= 3709
FILE ID= node12/200459-1168072145

PBS_JOBID= 3475713

Free space on /tmp= 66313 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queensKnights/queensKnights-10-5-mul.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/200459-1168072145/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node12/watcher-200459-1168072145 -o ROOT/results/node12/solver-200459-1168072145 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/200459-1168072145/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  cbc258ed026c4b607de8e359683e6583

RANDOM SEED= 14815019

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		: 3000.265
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		: 3000.265
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:       1625480 kB
Buffers:         27016 kB
Cached:         205484 kB
SwapCached:       4684 kB
Active:         158584 kB
Inactive:       190944 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1625480 kB
SwapTotal:     4192956 kB
SwapFree:      4160348 kB
Dirty:            1676 kB
Writeback:           0 kB
Mapped:         136796 kB
Slab:            65708 kB
Committed_AS:  4679652 kB
PageTables:       2288 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= 66313 MiB



End job on node12 on Sat Jan  6 08:29:06 UTC 2007