Trace number 200394

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 1.76173 1.82397

DiagnosticValue
CHECKS9492681
NODES0

General information on the benchmark

NamequeensKnights/
queensKnights-25-5-add.xml
MD5SUMb90f8a45328f6041d4909cc0c2664efa
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 benchmark1.76173
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables30
Number of constraints310
Maximum constraint arity2
Maximum domain size625
Number of constraints which are defined in extension0
Number of constraints which are defined in intension310
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=esac.xml
0.35	   
0.35	   instance
0.35	     name=/tmp/evaluation/200394-1168142417/unknown.xml
0.38	   
0.38	   domains being loaded...
0.39	   
0.39	   variables being loaded...
0.42	     nbVariables=30  nbDomainTypes=2  minDomainSize=25  maxDomainSize=625
0.42	       =>  wckTime=0.102  cpuTime=0.08  mem=6M951
0.42	   
0.42	   predicates being loaded...
0.43	   
0.43	   constraints being loaded...
1.11	     nbConstraints=310  nbConvertedConstraints=310  nbConvertConstraintsChecks=796250  nbExtensionStructures=26
1.11	     nbSharedExtensionStructures=284  nbConflictsStructures=26  nbSharedConflictsStructures=284
1.11	     nbSharedBinaryRepresentations=2075  maxDegree=24  maxArity=2
1.11	       =>  wckTime=0.794  cpuTime=0.71  mem=10M852
1.16	   
1.16	   solver IterativeSystematicSolver being built... 
1.32	       =>  wckTime=1.005  cpuTime=0.84  mem=13M865
1.78	   
1.78	   preprocessing
1.78	     nbConstraintChecks=9492681  nbPropagations=6130  nbRevisions=10041  nbUselessRevisions=2701  nbSingletonTests=678
1.78	     nbEffectiveSingletonTests=624  nbESACBranches=4  nbRemovedValues=3111  detectedInconsistency=yes
1.78	       =>  wckTime=0.45  cpuTime=0.42  mem=13M865
1.78	   
1.78	   global
1.78	     nbConstraintChecks=9492681  nbPropagations=6130  nbRevisions=10041  nbUselessRevisions=2701  nbRestartNogoods=0
1.78	     solvingWckTime=0.452  solvingCpuTime=0.42  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
1.78	     globalCpuTime=1.33
1.78	       =>  wckTime=1.46  cpuTime=1.27  mem=13M865
1.78	   
1.78	s UNSATISFIABLE
1.78	d NODES 0
1.78	d CHECKS 9492681
1.78	   
1.78	   totalWckTime=1.542  totalCpuTime=1.34

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/node9/watcher-200394-1168142417 -o ROOT/results/node9/solver-200394-1168142417 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/200394-1168142417/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: 2.39 2.12 2.07 4/88 8407
/proc/meminfo: memFree=1763168/2055920 swapFree=4191880/4192956
[pid=8406] ppid=8404 vsize=18540 CPUtime=0
/proc/8406/stat : 8406 (runsolver) R 8404 8406 7203 0 -1 4194368 17 0 0 0 0 0 0 0 19 0 1 0 162636812 18984960 279 18446744073709551615 4194304 4267372 548682068944 18446744073709551615 215418989863 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/8406/statm: 4635 279 244 17 0 2626 0

[startup+0.107989 s]
/proc/loadavg: 2.39 2.12 2.07 4/88 8407
/proc/meminfo: memFree=1763168/2055920 swapFree=4191880/4192956
[pid=8406] ppid=8404 vsize=914988 CPUtime=0.08
/proc/8406/stat : 8406 (java) R 8404 8406 7203 0 -1 0 2989 0 1 0 7 1 0 0 17 0 8 0 162636812 936947712 2735 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4072942028 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/8406/statm: 228747 2735 1426 14 0 215242 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 914988

[startup+0.516033 s]
/proc/loadavg: 2.39 2.12 2.07 4/88 8407
/proc/meminfo: memFree=1763168/2055920 swapFree=4191880/4192956
[pid=8406] ppid=8404 vsize=915328 CPUtime=0.48
/proc/8406/stat : 8406 (java) R 8404 8406 7203 0 -1 0 6530 0 1 0 44 4 0 0 18 0 8 0 162636812 937295872 6269 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/8406/statm: 228832 6269 2145 14 0 215302 0
Current children cumulated CPU time (s) 0.48
Current children cumulated vsize (KiB) 915328

[startup+1.33813 s]
/proc/loadavg: 2.44 2.13 2.08 4/95 8414
/proc/meminfo: memFree=1744168/2055920 swapFree=4191880/4192956
[pid=8406] ppid=8404 vsize=915460 CPUtime=1.29
/proc/8406/stat : 8406 (java) R 8404 8406 7203 0 -1 0 8435 0 1 0 122 7 0 0 25 0 8 0 162636812 937431040 8172 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/8406/statm: 228865 8172 2538 14 0 215335 0
[pid=8406/tid=8408] ppid=8404 vsize=915460 CPUtime=0.02
/proc/8406/task/8408/stat : 8408 (java) S 8404 8406 7203 0 -1 64 215 0 0 0 2 0 0 0 16 0 8 0 162636817 937431040 8172 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 0 0 23759 0 0 0 -1 1 0 0
[pid=8406/tid=8409] ppid=8404 vsize=915460 CPUtime=0
/proc/8406/task/8409/stat : 8409 (java) S 8404 8406 7203 0 -1 64 11 0 0 0 0 0 0 0 16 0 8 0 162636817 937431040 8172 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=8406/tid=8410] ppid=8404 vsize=915460 CPUtime=0
/proc/8406/task/8410/stat : 8410 (java) S 8404 8406 7203 0 -1 64 5 0 0 0 0 0 0 0 16 0 8 0 162636817 937431040 8172 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=8406/tid=8411] ppid=8404 vsize=915460 CPUtime=0
/proc/8406/task/8411/stat : 8411 (java) S 8404 8406 7203 0 -1 64 1 0 0 0 0 0 0 0 18 0 8 0 162636821 937431040 8172 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=8406/tid=8412] ppid=8404 vsize=915460 CPUtime=0.15
/proc/8406/task/8412/stat : 8412 (java) R 8404 8406 7203 0 -1 64 350 0 0 0 15 0 0 0 16 0 8 0 162636821 937431040 8172 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4153427011 0 4 0 23759 0 0 0 -1 1 0 0
[pid=8406/tid=8413] ppid=8404 vsize=915460 CPUtime=0
/proc/8406/task/8413/stat : 8413 (java) S 8404 8406 7203 0 -1 64 1 0 0 0 0 0 0 0 19 0 8 0 162636821 937431040 8172 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=8406/tid=8414] ppid=8404 vsize=915460 CPUtime=0
/proc/8406/task/8414/stat : 8414 (java) S 8404 8406 7203 0 -1 64 0 0 0 0 0 0 0 0 15 0 8 0 162636821 937431040 8172 18446744073709551615 134512640 134570532 4294956464 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 915460

Child status: 0
Real time (s): 1.82397
CPU time (s): 1.76173
CPU user time (s): 1.64075
CPU system time (s): 0.120981
CPU usage (%): 96.5879
Max. virtual memory (cumulated for all children) (KiB): 915460

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.64075
system time used= 0.120981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8548
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= 956
involuntary context switches= 966

runsolver used 0.006998 s user time and 0.007998 s system time

The end

Launcher Data (download as text)

Begin job on node9 on Sun Jan  7 04:00:17 UTC 2007


IDJOB= 200394
IDBENCH= 3705
FILE ID= node9/200394-1168142417

PBS_JOBID= 3477820

Free space on /tmp= 66542 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queensKnights/queensKnights-25-5-add.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/200394-1168142417/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node9/watcher-200394-1168142417 -o ROOT/results/node9/solver-200394-1168142417 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/200394-1168142417/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  b90f8a45328f6041d4909cc0c2664efa

RANDOM SEED= 413502960

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:       1763584 kB
Buffers:         30944 kB
Cached:         142140 kB
SwapCached:        316 kB
Active:         148980 kB
Inactive:        77424 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1763584 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:            1700 kB
Writeback:           0 kB
Mapped:          66572 kB
Slab:            50460 kB
Committed_AS:  4269812 kB
PageTables:       2328 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= 66542 MiB



End job on node9 on Sun Jan  7 04:00:19 UTC 2007