Trace number 2097285

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 1.11483 1.13497

DiagnosticValue
CHECKS757757
NODES206

General information on the benchmark

Namecsp/queensKnights/
normalized-queensKnights-15-5-add.xml
MD5SUMf79a29efc9f65a8d195d10c1647254fc
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 benchmark1.00785
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints115
Maximum constraint arity2
Maximum domain size225
Number of constraints which are defined in extension0
Number of constraints which are defined in intension115
Global constraints used (with number of constraints)

Solver Data

0.03/0.09	
0.03/0.09	Abscon 112 (May, 2008)
0.19/0.24	
0.19/0.24	   configuration
0.19/0.24	     name=mac.xml
0.29/0.32	   
0.29/0.32	   instance
0.29/0.32	     name=HOME/instance-2097285-1247412024.xml
0.29/0.35	   
0.29/0.35	   domains being loaded...
0.29/0.36	   
0.29/0.36	   variables being loaded...
0.29/0.39	     nbVariables=20  nbDomainTypes=2  minDomainSize=15  maxDomainSize=225  nbTotalValues=1350
0.29/0.39	       =>  wckTime=0.146  cpuTime=0.11  mem=7M892
0.29/0.39	   
0.29/0.39	   predicates being loaded...
0.38/0.46	   
0.38/0.46	   constraints being loaded...
0.68/0.79	     nbConstraints=120  nbGlobalConstraints=5  nbConvertedConstraints=115  nbConvertConstraintsChecks=205875
0.68/0.79	     nbExtensionStructures=19  nbSharedExtensionStructures=96  nbConflictsStructures=19  nbSharedConflictsStructures=96
0.68/0.79	     nbSharedBinaryRepresentations=733  minDegree=6  maxDegree=16  minArity=2  avgArity=2.28  maxArity=15
0.68/0.79	     nbGenerators=3  nbFusions=3  symmetryWckTime=0.088  symmetryCpuTime=0.06  nbCliques=2
0.68/0.79	       =>  wckTime=0.553  cpuTime=0.41  mem=15M721
0.77/0.85	   
0.77/0.85	   solver IterativeSystematicSolver being built... 
0.87/0.91	   
0.87/0.91	   INFO : Forward propagation technique limited 
0.87/0.97	       =>  wckTime=0.734  cpuTime=0.52  mem=19M696
0.87/0.98	   
0.87/0.98	   preprocessing
0.87/0.98	     nbConstraintChecks=3705  nbPropagations=23  nbRevisions=11  nbUselessRevisions=4  nbRemovedValues=49
0.87/0.98	     nbRemovedTuples=26032  detectedInconsistency=no
0.87/0.98	       =>  wckTime=0.0080  cpuTime=0.01  mem=19M696
1.07/1.12	   
1.07/1.12	   search
1.07/1.12	     run=6  nbConstraintChecks=754052  minDepth=0  maxDepth=0  nbPropagations=5326  nbRevisions=10567
1.07/1.12	     nbUselessRevisions=4285  nbAssignments=206  nbFailedAssignments=206  nbBacktracks=1  nbVisitedNodes=413
1.07/1.12	     nbRestartNogoods=0  mapSize=0  nbInferences=0  nbTooLargeKeys=0  nbSEliminables=?  nbREliminables=?
1.07/1.12	     nbIEliminables=?  nbDEliminables=?  nbPEliminables=?
1.07/1.12	       =>  wckTime=0.14  cpuTime=0.1  mem=21M646
1.07/1.12	   
1.07/1.12	   global
1.07/1.12	     nbConstraintChecks=757757  nbPropagations=5349  nbRevisions=10578  nbUselessRevisions=4289  nbRestartNogoods=0
1.07/1.12	     solvingWckTime=0.142  solvingCpuTime=0.11  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
1.07/1.12	     globalCpuTime=0.68
1.07/1.12	       =>  wckTime=0.878  cpuTime=0.63  mem=21M646
1.07/1.12	   
1.07/1.12	s UNSATISFIABLE
1.07/1.12	d NODES 206
1.07/1.12	d CHECKS 757757
1.07/1.12	   
1.07/1.12	   totalWckTime=0.934  totalCpuTime=0.68

Verifier Data

No possible verification on an UNSAT instance

Watcher Data

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2097285-1247412024/watcher-2097285-1247412024 -o /tmp/evaluation-result-2097285-1247412024/solver-2097285-1247412024 -C 1800 -W 2000 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax HOME/instance-2097285-1247412024.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): 2000 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


[startup+0 s]
/proc/loadavg: 2.08 2.08 2.03 3/80 27755
/proc/meminfo: memFree=1746776/2055920 swapFree=4192812/4192956
[pid=27755] ppid=27753 vsize=1616 CPUtime=0
/proc/27755/stat : 27755 (java) D 27753 27755 27079 0 -1 0 177 0 0 0 0 0 0 0 18 0 1 0 28270095 1654784 145 996147200 134512640 134550932 4294956128 18446744073709551615 4294960144 0 2147483391 4096 0 18446744072099781622 0 0 17 0 0 0
/proc/27755/statm: 404 145 119 9 0 46 0

[startup+0.0427569 s]
/proc/loadavg: 2.08 2.08 2.03 3/80 27755
/proc/meminfo: memFree=1746776/2055920 swapFree=4192812/4192956
[pid=27755] ppid=27753 vsize=861936 CPUtime=0.03
/proc/27755/stat : 27755 (java) S 27753 27755 27079 0 -1 0 2276 0 1 0 1 2 0 0 18 0 5 0 28270095 882622464 1879 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800971 18446744073709551615 0 0 17 1 0 0
/proc/27755/statm: 215484 1879 861 9 0 210399 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 861936

[startup+0.102283 s]
/proc/loadavg: 2.08 2.08 2.03 3/80 27755
/proc/meminfo: memFree=1746776/2055920 swapFree=4192812/4192956
[pid=27755] ppid=27753 vsize=865984 CPUtime=0.09
/proc/27755/stat : 27755 (java) S 27753 27755 27079 0 -1 0 3775 0 1 0 6 3 0 0 18 0 9 0 28270095 886767616 3229 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/27755/statm: 216496 3229 1703 9 0 210981 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 865984

[startup+0.302324 s]
/proc/loadavg: 2.08 2.08 2.03 3/80 27755
/proc/meminfo: memFree=1746776/2055920 swapFree=4192812/4192956
[pid=27755] ppid=27753 vsize=866296 CPUtime=0.29
/proc/27755/stat : 27755 (java) S 27753 27755 27079 0 -1 0 5700 0 1 0 24 5 0 0 18 0 9 0 28270095 887087104 5103 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/27755/statm: 216574 5103 1927 9 0 211052 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 866296

[startup+0.701393 s]
/proc/loadavg: 2.08 2.08 2.03 3/80 27755
/proc/meminfo: memFree=1746776/2055920 swapFree=4192812/4192956
[pid=27755] ppid=27753 vsize=866728 CPUtime=0.68
/proc/27755/stat : 27755 (java) S 27753 27755 27079 0 -1 0 7856 0 1 0 62 6 0 0 18 0 9 0 28270095 887529472 7208 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/27755/statm: 216682 7208 2035 9 0 211118 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 866728

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

[startup+1.10647 s]
/proc/loadavg: 2.08 2.08 2.03 4/89 27768
/proc/meminfo: memFree=1715664/2055920 swapFree=4192812/4192956
[pid=27755] ppid=27753 vsize=867376 CPUtime=1.07
/proc/27755/stat : 27755 (java) S 27753 27755 27079 0 -1 0 15722 281 1 0 97 10 0 0 18 0 9 0 28270095 888193024 10355 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/27755/statm: 216844 10355 2656 9 0 211280 0
[pid=27755/tid=27757] ppid=27753 vsize=867376 CPUtime=0.83
/proc/27755/task/27757/stat : 27757 (java) R 27753 27755 27079 0 -1 64 12004 281 1 0 76 7 0 0 23 0 9 0 28270096 888193024 10355 996147200 134512640 134550932 4294955968 18446744073709551615 4126835401 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=27755/tid=27758] ppid=27753 vsize=867376 CPUtime=0.03
/proc/27755/task/27758/stat : 27758 (java) S 27753 27755 27079 0 -1 64 2304 281 0 0 3 0 0 0 16 0 9 0 28270098 888193024 10355 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 1 0 0
[pid=27755/tid=27759] ppid=27753 vsize=867376 CPUtime=0
/proc/27755/task/27759/stat : 27759 (java) S 27753 27755 27079 0 -1 64 18 281 0 0 0 0 0 0 16 0 9 0 28270098 888193024 10355 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=27755/tid=27760] ppid=27753 vsize=867376 CPUtime=0
/proc/27755/task/27760/stat : 27760 (java) S 27753 27755 27079 0 -1 64 11 281 0 0 0 0 0 0 15 0 9 0 28270098 888193024 10355 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=27755/tid=27761] ppid=27753 vsize=867376 CPUtime=0
/proc/27755/task/27761/stat : 27761 (java) S 27753 27755 27079 0 -1 64 1 281 0 0 0 0 0 0 18 0 9 0 28270100 888193024 10355 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=27755/tid=27762] ppid=27753 vsize=867376 CPUtime=0.17
/proc/27755/task/27762/stat : 27762 (java) S 27753 27755 27079 0 -1 64 570 281 0 0 17 0 0 0 15 0 9 0 28270100 888193024 10355 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=27755/tid=27763] ppid=27753 vsize=867376 CPUtime=0
/proc/27755/task/27763/stat : 27763 (java) S 27753 27755 27079 0 -1 64 1 281 0 0 0 0 0 0 19 0 9 0 28270100 888193024 10355 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=27755/tid=27764] ppid=27753 vsize=867376 CPUtime=0
/proc/27755/task/27764/stat : 27764 (java) S 27753 27755 27079 0 -1 64 6 281 0 0 0 0 0 0 15 0 9 0 28270100 888193024 10355 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 1.07
Current children cumulated vsize (KiB) 867376

Child status: 0
Real time (s): 1.13497
CPU time (s): 1.11483
CPU user time (s): 0.996848
CPU system time (s): 0.117982
CPU usage (%): 98.2253
Max. virtual memory (cumulated for all children) (KiB): 867376

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.996848
system time used= 0.117982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16122
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= 719
involuntary context switches= 732

runsolver used 0.006998 second user time and 0.009998 second system time

The end

Launcher Data

Begin job on node2 at 2009-07-12 17:20:24
IDJOB=2097285
IDBENCH=57096
IDSOLVER=773
FILE ID=node2/2097285-1247412024
PBS_JOBID= 9510639
Free space on /tmp= 66332 MiB

SOLVER NAME= Abscon 112v4 AC
BENCH NAME= CPAI08/csp/queensKnights/normalized-queensKnights-15-5-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= BIN/runsolver --timestamp -w /tmp/evaluation-result-2097285-1247412024/watcher-2097285-1247412024 -o /tmp/evaluation-result-2097285-1247412024/solver-2097285-1247412024 -C 1800 -W 2000 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution mac.xml 1 XSax HOME/instance-2097285-1247412024.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= f79a29efc9f65a8d195d10c1647254fc
RANDOM SEED=900099569

node2.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		: 3000.265
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:       1747256 kB
Buffers:         32640 kB
Cached:         121176 kB
SwapCached:          0 kB
Active:         190652 kB
Inactive:        66588 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1747256 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2056 kB
Writeback:           0 kB
Mapped:         123908 kB
Slab:            36536 kB
Committed_AS:   991592 kB
PageTables:       2068 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= 66332 MiB
End job on node2 at 2009-07-12 17:20:25