Trace number 1081286

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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 112v4 ACUNSAT 0.84887 0.88966

DiagnosticValue
CHECKS24172
NODES52

General information on the benchmark

Namecsp/queensKnights/
normalized-queensKnights-8-5-add.xml
MD5SUM975c174ddd3fe86ae18e7a03c329b104
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 benchmark0.272957
Satisfiable
(Un)Satisfiability was proved
Number of variables13
Number of constraints38
Maximum constraint arity2
Maximum domain size64
Number of constraints which are defined in extension0
Number of constraints which are defined in intension38
Global constraints used (with number of constraints)

Solver Data (download as text)

0.02/0.09	
0.02/0.09	Abscon 112 (May, 2008)
0.18/0.24	
0.18/0.24	   configuration
0.18/0.24	     name=mac.xml
0.27/0.32	   
0.27/0.32	   instance
0.27/0.32	     name=HOME/instance-1081286-1215216276.xml
0.27/0.35	   
0.27/0.35	   domains being loaded...
0.27/0.36	   
0.27/0.36	   variables being loaded...
0.27/0.38	     nbVariables=13  nbDomainTypes=2  minDomainSize=8  maxDomainSize=64  nbTotalValues=384
0.27/0.38	       =>  wckTime=0.145  cpuTime=0.11  mem=7M919
0.27/0.38	   
0.27/0.38	   predicates being loaded...
0.37/0.45	   
0.37/0.45	   constraints being loaded...
0.57/0.62	     nbConstraints=43  nbGlobalConstraints=5  nbConvertedConstraints=38  nbConvertConstraintsChecks=16896
0.57/0.62	     nbExtensionStructures=12  nbSharedExtensionStructures=26  nbConflictsStructures=12  nbSharedConflictsStructures=26
0.57/0.62	     nbSharedBinaryRepresentations=201  minDegree=6  maxDegree=9  minArity=2  avgArity=2.47  maxArity=8  nbGenerators=3
0.57/0.62	     nbFusions=3  symmetryWckTime=0.048  symmetryCpuTime=0.03  nbCliques=2
0.57/0.62	       =>  wckTime=0.376  cpuTime=0.29  mem=13M811
0.57/0.67	   
0.57/0.67	   solver IterativeSystematicSolver being built... 
0.67/0.74	   
0.67/0.74	   INFO : Forward propagation technique limited 
0.67/0.80	       =>  wckTime=0.557  cpuTime=0.4  mem=19M459
0.76/0.80	   
0.76/0.80	   preprocessing
0.76/0.80	     nbConstraintChecks=580  nbPropagations=16  nbRevisions=11  nbUselessRevisions=4  nbRemovedValues=28
0.76/0.80	     nbRemovedTuples=2211  detectedInconsistency=no
0.76/0.80	       =>  wckTime=0.0040  cpuTime=0.0  mem=19M459
0.76/0.85	   
0.76/0.85	   search
0.76/0.85	     run=3  nbConstraintChecks=23592  minDepth=0  maxDepth=0  nbPropagations=978  nbRevisions=1975
0.76/0.85	     nbUselessRevisions=800  nbAssignments=52  nbFailedAssignments=52  nbBacktracks=1  nbVisitedNodes=105
0.76/0.85	     nbRestartNogoods=0  mapSize=0  nbInferences=0  nbTooLargeKeys=0  nbSEliminables=?  nbREliminables=?
0.76/0.85	     nbIEliminables=?  nbDEliminables=?  nbPEliminables=?
0.76/0.85	       =>  wckTime=0.053  cpuTime=0.03  mem=20M451
0.76/0.85	   
0.76/0.85	   global
0.76/0.85	     nbConstraintChecks=24172  nbPropagations=994  nbRevisions=1986  nbUselessRevisions=804  nbRestartNogoods=0
0.76/0.85	     solvingWckTime=0.055  solvingCpuTime=0.04  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.76/0.85	     globalCpuTime=0.49
0.76/0.85	       =>  wckTime=0.615  cpuTime=0.44  mem=20M451
0.76/0.85	   
0.76/0.85	s UNSATISFIABLE
0.76/0.85	d NODES 52
0.76/0.85	d CHECKS 24172
0.76/0.86	   
0.76/0.86	   totalWckTime=0.671  totalCpuTime=0.49

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1081286-1215216276/watcher-1081286-1215216276 -o /tmp/evaluation-result-1081286-1215216276/solver-1081286-1215216276 -C 1800 -W 2200 -M 900 --output-limit 1,15 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax HOME/instance-1081286-1215216276.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2200 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.92 1.98 1.99 4/73 9413
/proc/meminfo: memFree=1515848/2055920 swapFree=4095852/4192956
[pid=9413] ppid=9411 vsize=10616 CPUtime=0
/proc/9413/stat : 9413 (java) S 9411 9413 7095 0 -1 0 676 0 0 0 0 0 0 0 18 0 2 0 1551295272 10870784 472 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/9413/statm: 2654 472 209 9 0 1184 0
[pid=9413/tid=9414] ppid=9411 vsize=10616 CPUtime=0
/proc/9413/task/9414/stat : 9414 (java) R 9411 9413 7095 0 -1 64 0 0 0 0 0 0 0 0 19 0 2 0 1551295273 10870784 472 996147200 134512640 134550740 4294955968 18446744073709551615 7757784 0 0 4096 0 0 0 0 -1 1 0 0

[startup+0.0435381 s]
/proc/loadavg: 1.92 1.98 1.99 4/73 9413
/proc/meminfo: memFree=1515848/2055920 swapFree=4095852/4192956
[pid=9413] ppid=9411 vsize=861876 CPUtime=0.02
/proc/9413/stat : 9413 (java) S 9411 9413 7095 0 -1 0 2256 0 1 0 1 1 0 0 18 0 5 0 1551295272 882561024 1865 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800971 18446744073709551615 0 0 17 1 0 0
/proc/9413/statm: 215469 1881 860 9 0 210448 0
[pid=9413/tid=9414] ppid=9411 vsize=861876 CPUtime=0.01
/proc/9413/task/9414/stat : 9414 (java) D 9411 9413 7095 0 -1 64 1580 0 1 0 1 0 0 0 17 0 5 0 1551295273 882561024 1881 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 2147483391 0 16800971 18446744072099781622 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 861876

[startup+0.108559 s]
/proc/loadavg: 1.92 1.98 1.99 4/73 9413
/proc/meminfo: memFree=1515848/2055920 swapFree=4095852/4192956
[pid=9413] ppid=9411 vsize=865884 CPUtime=0.09
/proc/9413/stat : 9413 (java) S 9411 9413 7095 0 -1 0 3845 0 1 0 7 2 0 0 18 0 9 0 1551295272 886665216 3288 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/9413/statm: 216471 3288 1734 9 0 211026 0
[pid=9413/tid=9414] ppid=9411 vsize=865884 CPUtime=0.07
/proc/9413/task/9414/stat : 9414 (java) R 9411 9413 7095 0 -1 64 2942 0 1 0 6 1 0 0 18 0 9 0 1551295273 886665216 3288 996147200 134512640 134550740 4294955968 18446744073709551615 102805359 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 865884

[startup+0.301583 s]
/proc/loadavg: 1.92 1.98 1.99 4/73 9413
/proc/meminfo: memFree=1515848/2055920 swapFree=4095852/4192956
[pid=9413] ppid=9411 vsize=866196 CPUtime=0.27
/proc/9413/stat : 9413 (java) S 9411 9413 7095 0 -1 0 5618 0 1 0 24 3 0 0 18 0 9 0 1551295272 886984704 5032 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/9413/statm: 216549 5032 1902 9 0 211097 0
[pid=9413/tid=9414] ppid=9411 vsize=866196 CPUtime=0.24
/proc/9413/task/9414/stat : 9414 (java) R 9411 9413 7095 0 -1 64 4661 0 1 0 21 3 0 0 19 0 9 0 1551295273 886984704 5032 996147200 134512640 134550740 4294955968 18446744073709551615 6910756 0 2147483391 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 866196

[startup+0.701634 s]
/proc/loadavg: 1.92 1.98 1.99 4/73 9413
/proc/meminfo: memFree=1515848/2055920 swapFree=4095852/4192956
[pid=9413] ppid=9411 vsize=867284 CPUtime=0.67
/proc/9413/stat : 9413 (java) S 9411 9413 7095 0 -1 0 11424 273 1 0 61 6 0 0 18 0 9 0 1551295272 888098816 8151 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/9413/statm: 216821 8151 2627 9 0 211327 0
[pid=9413/tid=9414] ppid=9411 vsize=867284 CPUtime=0.51
/proc/9413/task/9414/stat : 9414 (java) R 9411 9413 7095 0 -1 64 7984 273 1 0 47 4 0 0 19 0 9 0 1551295273 888098816 8151 996147200 134512640 134550740 4294955968 18446744073709551615 102226578 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 867284

Solver just ended. Dumping a history of the last processes samples

[startup+0.801641 s]
/proc/loadavg: 1.92 1.98 1.99 4/73 9413
/proc/meminfo: memFree=1515848/2055920 swapFree=4095852/4192956
[pid=9413] ppid=9411 vsize=867284 CPUtime=0.76
/proc/9413/stat : 9413 (java) S 9411 9413 7095 0 -1 0 14859 273 1 0 69 7 0 0 18 0 9 0 1551295272 888098816 9819 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/9413/statm: 216821 9819 2628 9 0 211327 0
[pid=9413/tid=9414] ppid=9411 vsize=867284 CPUtime=0.6
/proc/9413/task/9414/stat : 9414 (java) R 9411 9413 7095 0 -1 64 11409 273 1 0 54 6 0 0 20 0 9 0 1551295273 888098816 9819 996147200 134512640 134550740 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.76
Current children cumulated vsize (KiB) 867284

Child status: 0
Real time (s): 0.88966
CPU time (s): 0.84887
CPU user time (s): 0.753885
CPU system time (s): 0.094985
CPU usage (%): 95.4151
Max. virtual memory (cumulated for all children) (KiB): 867284

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.753885
system time used= 0.094985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15592
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= 448
involuntary context switches= 514

runsolver used 0.003999 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node40 at 2008-07-05 02:04:36
IDJOB=1081286
IDBENCH=57088
IDSOLVER=363
FILE ID=node40/1081286-1215216276
PBS_JOBID= 7881716
Free space on /tmp= 66524 MiB

SOLVER NAME= Abscon 112v4 AC
BENCH NAME= CPAI08/csp/queensKnights/normalized-queensKnights-8-5-add.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax BENCHNAME
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1081286-1215216276/watcher-1081286-1215216276 -o /tmp/evaluation-result-1081286-1215216276/solver-1081286-1215216276 -C 1800 -W 2200 -M 900 --output-limit 1,15  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax HOME/instance-1081286-1215216276.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 975c174ddd3fe86ae18e7a03c329b104
RANDOM SEED=126466482

node40.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.209
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		: 3000.209
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:       1516328 kB
Buffers:         78572 kB
Cached:         310304 kB
SwapCached:      91204 kB
Active:         369396 kB
Inactive:       121252 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1516328 kB
SwapTotal:     4192956 kB
SwapFree:      4095852 kB
Dirty:            2168 kB
Writeback:           0 kB
Mapped:         108868 kB
Slab:            34148 kB
Committed_AS:  3067856 kB
PageTables:       2032 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= 66520 MiB
End job on node40 at 2008-07-05 02:04:37