Trace number 191978

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 ACSAT 1.16682 1.29653

DiagnosticValue
CHECKS128180
NODES154

General information on the benchmark

Namequeens/
queens-50.xml
MD5SUM5dd13167a8df7fcb5fb19270fa71fe1f
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.079987
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables50
Number of constraints1225
Maximum constraint arity2
Maximum domain size50
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1225
Global constraints used (with number of constraints)

Solver Data (download as text)

0.36	   
0.36	Abscon 109 (November, 2006)
0.36	   
0.36	   configuration
0.36	     name=mac.xml
0.39	   
0.39	   instance
0.39	     name=/tmp/evaluation/191978-1168069100/unknown.xml
0.42	   
0.43	   domains being loaded...
0.43	   
0.43	   variables being loaded...
0.47	     nbVariables=50  nbDomainTypes=1  minDomainSize=50  maxDomainSize=50
0.47	       =>  wckTime=0.1  cpuTime=0.09  mem=6M951
0.47	   
0.47	   predicates being loaded...
0.47	   
0.47	   constraints being loaded...
0.90	     nbConstraints=1225  nbConvertedConstraints=1225  nbConvertConstraintsChecks=122500  nbExtensionStructures=49
0.90	     nbSharedExtensionStructures=1176  nbConflictsStructures=49  nbSharedConflictsStructures=1176
0.90	     nbSharedBinaryRepresentations=3419  maxDegree=49  maxArity=2
0.90	       =>  wckTime=0.537  cpuTime=0.41  mem=16M703
0.95	   
0.95	   solver IterativeSystematicSolver being built... 
1.10	       =>  wckTime=0.733  cpuTime=0.53  mem=14M98
1.11	   
1.11	   preprocessing
1.11	     nbConstraintChecks=0  nbPropagations=50  nbRevisions=0  nbUselessRevisions=0  nbRemovedValues=0
1.11	     detectedInconsistency=no
1.11	       =>  wckTime=0.012  cpuTime=0.01  mem=14M98
1.18	   
1.18	   search
1.18	     run=0  nbConstraintChecks=53303  nbPropagations=1291  nbRevisions=3614  nbUselessRevisions=1568  nbAssignments=43
1.18	     nbFailedAssignments=10  nbBacktracks=10  nbVisitedNodes=62  nbRestartNogoods=0  mapSize=10  nbInferences=0
1.18	     nbTooLargeKeys=0
1.18	       =>  wckTime=0.08  cpuTime=0.06  mem=14M98
1.22	   
1.22	   search
1.22	     run=1  nbConstraintChecks=94002  nbPropagations=3873  nbRevisions=10969  nbUselessRevisions=5255  nbAssignments=102
1.22	     nbFailedAssignments=21  nbBacktracks=25  nbVisitedNodes=140  nbRestartNogoods=4  mapSize=24  nbInferences=0
1.22	     nbTooLargeKeys=0
1.22	       =>  wckTime=0.113  cpuTime=0.08  mem=14M98
1.23	   
1.23	   search
1.24	     run=2  nbConstraintChecks=128180  nbPropagations=7558  nbRevisions=19819  nbUselessRevisions=9348
1.24	     nbAssignments=154  nbFailedAssignments=23  nbBacktracks=25  nbVisitedNodes=194  nbRestartNogoods=7  mapSize=24
1.24	     nbInferences=0  nbTooLargeKeys=0
1.24	       =>  wckTime=0.133  cpuTime=0.1  mem=15M74
1.24	   
1.24	   global
1.24	     nbConstraintChecks=128180  nbPropagations=7608  nbRevisions=19819  nbUselessRevisions=9348  nbRestartNogoods=7
1.24	     solvingWckTime=0.134  solvingCpuTime=0.1  expiredTime=no  totalExploration=no  nbFoundSolutions=1
1.24	     globalCpuTime=0.68
1.24	       =>  wckTime=0.87  cpuTime=0.63  mem=15M74
1.24	   
1.24	s SATISFIABLE
1.24	v 16 14 19 31 15 12 25 46 6 21 45 11 44 27 43 37 42 7 9 13 41 26 40 18 39 49 2 8 10 17 38 23 34 36 30 1 35 47 22 48 5 24 28 32 50 4 33 20 3 29 
1.24	d NODES 154
1.24	d CHECKS 128180
1.24	   
1.24	   totalWckTime=0.946  totalCpuTime=0.68

Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node14/watcher-191978-1168069100 -o ROOT/results/node14/solver-191978-1168069100 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/191978-1168069100/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: 1.39 1.80 1.91 4/86 23213
/proc/meminfo: memFree=1370280/2055920 swapFree=4182236/4192956
[pid=23212] ppid=23210 vsize=18540 CPUtime=0
/proc/23212/stat : 23212 (runsolver) R 23210 23212 23089 0 -1 4194368 17 0 0 0 0 0 0 0 20 0 1 0 155305521 18984960 279 18446744073709551615 4194304 4267372 548682068944 18446744073709551615 212234464551 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/23212/statm: 4635 279 244 17 0 2626 0

[startup+0.102814 s]
/proc/loadavg: 1.39 1.80 1.91 4/86 23213
/proc/meminfo: memFree=1370280/2055920 swapFree=4182236/4192956
[pid=23212] ppid=23210 vsize=906128 CPUtime=0.01
/proc/23212/stat : 23212 (java) R 23210 23212 23089 0 -1 0 2032 0 1 0 1 0 0 0 18 0 1 0 155305521 927875072 1781 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4155069962 0 4 0 7368 0 0 0 17 0 0 0
/proc/23212/statm: 226532 1781 1015 14 0 214115 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 906128

[startup+0.510844 s]
/proc/loadavg: 1.39 1.80 1.91 4/86 23213
/proc/meminfo: memFree=1370280/2055920 swapFree=4182236/4192956
[pid=23212] ppid=23210 vsize=915328 CPUtime=0.42
/proc/23212/stat : 23212 (java) R 23210 23212 23089 0 -1 0 6251 0 1 0 38 4 0 0 25 0 8 0 155305521 937295872 5990 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4154517622 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/23212/statm: 228832 5990 2145 14 0 215302 0
Current children cumulated CPU time (s) 0.42
Current children cumulated vsize (KiB) 915328

Child status: 0
Real time (s): 1.29653
CPU time (s): 1.16682
CPU user time (s): 1.03884
CPU system time (s): 0.12798
CPU usage (%): 89.9956
Max. virtual memory (cumulated for all children) (KiB): 915580

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.03884
system time used= 0.12798
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9481
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= 1172
involuntary context switches= 1222

runsolver used 0.003999 s user time and 0.010998 s system time

The end

Launcher Data (download as text)

Begin job on node14 on Sat Jan  6 07:38:22 UTC 2007


IDJOB= 191978
IDBENCH= 3083
FILE ID= node14/191978-1168069100

PBS_JOBID= 3475694

Free space on /tmp= 66328 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queens/queens-50.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/191978-1168069100/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node14/watcher-191978-1168069100 -o ROOT/results/node14/solver-191978-1168069100 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar mac.xml 1 XSax /tmp/evaluation/191978-1168069100/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  5dd13167a8df7fcb5fb19270fa71fe1f

RANDOM SEED= 251042635

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		: 3000.227
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:       1371784 kB
Buffers:         57128 kB
Cached:         339152 kB
SwapCached:       3696 kB
Active:         243700 kB
Inactive:       340776 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1371784 kB
SwapTotal:     4192956 kB
SwapFree:      4182236 kB
Dirty:            2136 kB
Writeback:           0 kB
Mapped:         201076 kB
Slab:            84332 kB
Committed_AS:  4755820 kB
PageTables:       2480 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= 66328 MiB



End job on node14 on Sat Jan  6 07:38:30 UTC 2007