Trace number 199212

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 2.55161 2.60212

DiagnosticValue
CHECKS38174450
NODES972

General information on the benchmark

Nameknights/
knights-25-9.xml
MD5SUMff6db571c9963ef273115b40e7595a31
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 benchmark2.28265
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables9
Number of constraints36
Maximum constraint arity2
Maximum domain size625
Number of constraints which are defined in extension0
Number of constraints which are defined in intension36
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/199212-1168071373/unknown.xml
0.38	   
0.38	   domains being loaded...
0.38	   
0.39	   variables being loaded...
0.42	     nbVariables=9  nbDomainTypes=1  minDomainSize=625  maxDomainSize=625
0.42	       =>  wckTime=0.098  cpuTime=0.09  mem=6M951
0.42	   
0.42	   predicates being loaded...
0.42	   
0.42	   constraints being loaded...
1.01	     nbConstraints=36  nbConvertedConstraints=36  nbConvertConstraintsChecks=781250  nbExtensionStructures=2
1.01	     nbSharedExtensionStructures=34  nbConflictsStructures=2  nbSharedConflictsStructures=34
1.01	     nbSharedBinaryRepresentations=1250  maxDegree=8  maxArity=2
1.01	       =>  wckTime=0.69  cpuTime=0.65  mem=8M902
1.05	   
1.05	   solver IterativeSystematicSolver being built... 
1.21	       =>  wckTime=0.888  cpuTime=0.78  mem=13M832
1.21	   
1.21	   preprocessing
1.21	     nbConstraintChecks=0  nbPropagations=9  nbRevisions=0  nbUselessRevisions=0  nbRemovedValues=0
1.21	     detectedInconsistency=no
1.21	       =>  wckTime=0.0  cpuTime=0.0  mem=13M832
2.56	   
2.56	   search
2.56	     run=0  nbConstraintChecks=38174450  nbPropagations=10914  nbRevisions=23915  nbUselessRevisions=7769
2.56	     nbAssignments=972  nbFailedAssignments=972  nbBacktracks=1  nbVisitedNodes=1945  nbRestartNogoods=0  mapSize=0
2.56	     nbInferences=0  nbTooLargeKeys=0
2.56	       =>  wckTime=1.35  cpuTime=1.31  mem=13M832
2.57	   
2.57	   global
2.57	     nbConstraintChecks=38174450  nbPropagations=10923  nbRevisions=23915  nbUselessRevisions=7769  nbRestartNogoods=0
2.57	     solvingWckTime=1.353  solvingCpuTime=1.31  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
2.57	     globalCpuTime=2.14
2.57	       =>  wckTime=2.244  cpuTime=2.09  mem=13M832
2.57	   
2.57	s UNSATISFIABLE
2.57	d NODES 972
2.57	d CHECKS 38174450
2.57	   
2.57	   totalWckTime=2.327  totalCpuTime=2.14

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/node20/watcher-199212-1168071373 -o ROOT/results/node20/solver-199212-1168071373 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/199212-1168071373/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: 0.99 1.04 1.29 2/81 22029
/proc/meminfo: memFree=1778168/2055920 swapFree=4170284/4192956
[pid=22028] ppid=22026 vsize=18540 CPUtime=0
/proc/22028/stat : 22028 (runsolver) R 22026 22028 21924 0 -1 4194368 17 0 0 0 0 0 0 0 20 0 1 0 155531884 18984960 279 18446744073709551615 4194304 4267372 548682068960 18446744073709551615 273952599335 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/22028/statm: 4635 279 244 17 0 2626 0

[startup+0.106824 s]
/proc/loadavg: 0.99 1.04 1.29 2/81 22029
/proc/meminfo: memFree=1778168/2055920 swapFree=4170284/4192956
[pid=22028] ppid=22026 vsize=914988 CPUtime=0.08
/proc/22028/stat : 22028 (java) R 22026 22028 21924 0 -1 0 2961 0 1 0 6 2 0 0 17 0 8 0 155531884 936947712 2707 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4152819938 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/22028/statm: 228747 2707 1417 14 0 215242 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 914988

[startup+0.514868 s]
/proc/loadavg: 0.99 1.04 1.29 2/81 22029
/proc/meminfo: memFree=1778168/2055920 swapFree=4170284/4192956
[pid=22028] ppid=22026 vsize=915328 CPUtime=0.49
/proc/22028/stat : 22028 (java) R 22026 22028 21924 0 -1 0 6477 0 1 0 44 5 0 0 18 0 8 0 155531884 937295872 6216 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4073580386 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/22028/statm: 228832 6216 2165 14 0 215302 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 915328

[startup+1.33597 s]
/proc/loadavg: 0.99 1.04 1.29 4/100 22048
/proc/meminfo: memFree=1733408/2055920 swapFree=4170284/4192956
[pid=22028] ppid=22026 vsize=915452 CPUtime=1.31
/proc/22028/stat : 22028 (java) R 22026 22028 21924 0 -1 0 8375 0 1 0 125 6 0 0 25 0 8 0 155531884 937422848 8113 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4073704296 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/22028/statm: 228863 8113 2527 14 0 215333 0
[pid=22028/tid=22035] ppid=22026 vsize=915452 CPUtime=0.02
/proc/22028/task/22035/stat : 22035 (java) S 22026 22028 21924 0 -1 64 185 0 0 0 2 0 0 0 17 0 8 0 155531889 937422848 8113 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 0 0 23759 0 0 0 -1 1 0 0
[pid=22028/tid=22037] ppid=22026 vsize=915452 CPUtime=0
/proc/22028/task/22037/stat : 22037 (java) S 22026 22028 21924 0 -1 64 11 0 0 0 0 0 0 0 16 0 8 0 155531889 937422848 8113 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=22028/tid=22038] ppid=22026 vsize=915452 CPUtime=0
/proc/22028/task/22038/stat : 22038 (java) S 22026 22028 21924 0 -1 64 5 0 0 0 0 0 0 0 16 0 8 0 155531889 937422848 8113 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=22028/tid=22045] ppid=22026 vsize=915452 CPUtime=0
/proc/22028/task/22045/stat : 22045 (java) S 22026 22028 21924 0 -1 64 1 0 0 0 0 0 0 0 18 0 8 0 155531893 937422848 8113 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=22028/tid=22046] ppid=22026 vsize=915452 CPUtime=0.13
/proc/22028/task/22046/stat : 22046 (java) S 22026 22028 21924 0 -1 64 338 0 0 0 13 0 0 0 15 0 8 0 155531893 937422848 8113 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=22028/tid=22047] ppid=22026 vsize=915452 CPUtime=0
/proc/22028/task/22047/stat : 22047 (java) S 22026 22028 21924 0 -1 64 0 0 0 0 0 0 0 0 19 0 8 0 155531893 937422848 8113 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=22028/tid=22048] ppid=22026 vsize=915452 CPUtime=0
/proc/22028/task/22048/stat : 22048 (java) S 22026 22028 21924 0 -1 64 0 0 0 0 0 0 0 0 15 0 8 0 155531893 937422848 8113 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 915452

Child status: 0
Real time (s): 2.60212
CPU time (s): 2.55161
CPU user time (s): 2.48062
CPU system time (s): 0.070989
CPU usage (%): 98.0588
Max. virtual memory (cumulated for all children) (KiB): 915452

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.48062
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= 8482
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= 881
involuntary context switches= 983

runsolver used 0.003999 s user time and 0.015997 s system time

The end

Launcher Data (download as text)

Begin job on node20 on Sat Jan  6 08:16:13 UTC 2007


IDJOB= 199212
IDBENCH= 3600
FILE ID= node20/199212-1168071373

PBS_JOBID= 3475957

Free space on /tmp= 66545 MiB

BENCH NAME= HOME/pub/bench/CPAI06/knights/knights-25-9.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/199212-1168071373/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node20/watcher-199212-1168071373 -o ROOT/results/node20/solver-199212-1168071373 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/199212-1168071373/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  ff6db571c9963ef273115b40e7595a31

RANDOM SEED= 374625378

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		: 3000.216
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		: 3000.216
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:       1778648 kB
Buffers:         35724 kB
Cached:         143712 kB
SwapCached:       2668 kB
Active:          71520 kB
Inactive:       136880 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1778648 kB
SwapTotal:     4192956 kB
SwapFree:      4170284 kB
Dirty:            3612 kB
Writeback:           0 kB
Mapped:          43676 kB
Slab:            53752 kB
Committed_AS:  2814584 kB
PageTables:       2304 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= 66545 MiB



End job on node20 on Sat Jan  6 08:16:17 UTC 2007