Trace number 2097369

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 0.71589 0.736215

DiagnosticValue
CHECKS744
NODES1

General information on the benchmark

Namecsp/langford3/
normalized-langford-3-4.xml
MD5SUM42fac16323cec98ca95c8d9d36800d13
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 benchmark0.008998
Satisfiable
(Un)Satisfiability was proved
Number of variables12
Number of constraints74
Maximum constraint arity2
Maximum domain size12
Number of constraints which are defined in extension0
Number of constraints which are defined in intension74
Global constraints used (with number of constraints)

Solver Data 

0.06/0.09	
0.06/0.09	Abscon 112 (May, 2008)
0.18/0.24	
0.18/0.25	   configuration
0.18/0.25	     name=mac.xml
0.18/0.28	   
0.18/0.28	   instance
0.18/0.28	     name=HOME/instance-2097369-1247412205.xml
0.29/0.31	   
0.29/0.31	   domains being loaded...
0.29/0.32	   
0.29/0.32	   variables being loaded...
0.29/0.35	     nbVariables=12  nbDomainTypes=1  minDomainSize=12  maxDomainSize=12  nbTotalValues=144
0.29/0.35	       =>  wckTime=0.101  cpuTime=0.09  mem=7M892
0.29/0.35	   
0.29/0.35	   predicates being loaded...
0.38/0.41	   
0.38/0.41	   constraints being loaded...
0.48/0.53	     nbConstraints=67  nbGlobalConstraints=1  nbMergedConstraints=8  nbConvertedConstraints=66
0.48/0.53	     nbConvertConstraintsChecks=720  nbExtensionStructures=5  nbSharedExtensionStructures=61  nbConflictsStructures=5
0.48/0.53	     nbSharedConflictsStructures=61  nbSharedBinaryRepresentations=95  minDegree=12  maxDegree=12  minArity=2
0.48/0.53	     avgArity=2.15  maxArity=12  nbGenerators=0  nbFusions=0  symmetryWckTime=0.041  symmetryCpuTime=0.02  nbCliques=1
0.48/0.53	       =>  wckTime=0.281  cpuTime=0.22  mem=14M754
0.48/0.58	   
0.48/0.58	   solver IterativeSystematicSolver being built... 
0.57/0.64	   
0.57/0.64	   INFO : Forward propagation technique limited 
0.67/0.70	       =>  wckTime=0.45  cpuTime=0.32  mem=19M464
0.67/0.70	   
0.67/0.70	   preprocessing
0.67/0.70	     nbConstraintChecks=212  nbPropagations=20  nbRevisions=20  nbUselessRevisions=0  nbRemovedValues=84
0.67/0.70	     detectedInconsistency=no
0.67/0.70	       =>  wckTime=0.0050  cpuTime=0.01  mem=19M464
0.67/0.72	   
0.67/0.72	   search
0.67/0.72	     run=0  nbConstraintChecks=532  minDepth=0  maxDepth=0  nbPropagations=40  nbRevisions=163  nbUselessRevisions=102
0.67/0.72	     nbAssignments=1  nbFailedAssignments=1  nbBacktracks=1  nbVisitedNodes=3  nbRestartNogoods=0  mapSize=0
0.67/0.72	     nbInferences=0  nbTooLargeKeys=0  nbSEliminables=?  nbREliminables=?  nbIEliminables=?  nbDEliminables=?
0.67/0.72	     nbPEliminables=?
0.67/0.72	       =>  wckTime=0.019  cpuTime=0.01  mem=20M505
0.67/0.72	   
0.67/0.72	   global
0.67/0.72	     nbConstraintChecks=744  nbPropagations=60  nbRevisions=183  nbUselessRevisions=102  nbRestartNogoods=0
0.67/0.72	     solvingWckTime=0.021  solvingCpuTime=0.02  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
0.67/0.72	     globalCpuTime=0.39
0.67/0.72	       =>  wckTime=0.473  cpuTime=0.34  mem=20M505
0.67/0.72	   
0.67/0.72	s UNSATISFIABLE
0.67/0.72	d NODES 1
0.67/0.72	d CHECKS 744
0.67/0.72	   
0.67/0.72	   totalWckTime=0.539  totalCpuTime=0.4

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-2097369-1247412205/watcher-2097369-1247412205 -o /tmp/evaluation-result-2097369-1247412205/solver-2097369-1247412205 -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-2097369-1247412205.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: 1.99 1.98 1.99 3/81 31203
/proc/meminfo: memFree=1725608/2055920 swapFree=4192812/4192956
[pid=31203] ppid=31201 vsize=18576 CPUtime=0
/proc/31203/stat : 31203 (runsolver) R 31201 31203 28467 0 -1 4194368 16 0 0 0 0 0 0 0 21 0 1 0 28287716 19021824 285 996147200 4194304 4302564 548682068384 18446744073709551615 228706544935 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/31203/statm: 4644 285 249 26 0 2626 0

[startup+0.076764 s]
/proc/loadavg: 1.99 1.98 1.99 3/81 31203
/proc/meminfo: memFree=1725608/2055920 swapFree=4192812/4192956
[pid=31203] ppid=31201 vsize=864144 CPUtime=0.06
/proc/31203/stat : 31203 (java) S 31201 31203 28467 0 -1 0 3129 0 1 0 5 1 0 0 22 0 9 0 28287716 884883456 2614 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/31203/statm: 216036 2614 1241 9 0 210929 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 864144

[startup+0.101765 s]
/proc/loadavg: 1.99 1.98 1.99 3/81 31203
/proc/meminfo: memFree=1725608/2055920 swapFree=4192812/4192956
[pid=31203] ppid=31201 vsize=865980 CPUtime=0.08
/proc/31203/stat : 31203 (java) S 31201 31203 28467 0 -1 0 3739 0 1 0 7 1 0 0 22 0 9 0 28287716 886763520 3207 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/31203/statm: 216495 3207 1700 9 0 210980 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 865980

[startup+0.301785 s]
/proc/loadavg: 1.99 1.98 1.99 3/81 31203
/proc/meminfo: memFree=1725608/2055920 swapFree=4192812/4192956
[pid=31203] ppid=31201 vsize=866380 CPUtime=0.29
/proc/31203/stat : 31203 (java) S 31201 31203 28467 0 -1 0 5976 0 1 0 26 3 0 0 22 0 9 0 28287716 887173120 5342 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/31203/statm: 216595 5342 1984 9 0 211053 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 866380

[startup+0.701826 s]
/proc/loadavg: 1.99 1.98 1.99 3/81 31203
/proc/meminfo: memFree=1725608/2055920 swapFree=4192812/4192956
[pid=31203] ppid=31201 vsize=867040 CPUtime=0.67
/proc/31203/stat : 31203 (java) S 31201 31203 28467 0 -1 0 15004 267 1 0 60 7 0 0 22 0 9 0 28287716 887848960 9887 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/31203/statm: 216760 9887 2653 9 0 211196 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 867040

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

Child status: 0
Real time (s): 0.736215
CPU time (s): 0.71589
CPU user time (s): 0.628904
CPU system time (s): 0.086986
CPU usage (%): 97.2392
Max. virtual memory (cumulated for all children) (KiB): 867040

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.628904
system time used= 0.086986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15720
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= 607
involuntary context switches= 661

runsolver used 0.002999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node8 at 2009-07-12 17:23:25
IDJOB=2097369
IDBENCH=57197
IDSOLVER=773
FILE ID=node8/2097369-1247412205
PBS_JOBID= 9510628
Free space on /tmp= 66288 MiB

SOLVER NAME= Abscon 112v4 AC
BENCH NAME= CPAI08/csp/langford3/normalized-langford-3-4.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-2097369-1247412205/watcher-2097369-1247412205 -o /tmp/evaluation-result-2097369-1247412205/solver-2097369-1247412205 -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-2097369-1247412205.xml

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

MD5SUM BENCH= 42fac16323cec98ca95c8d9d36800d13
RANDOM SEED=1957946077

node8.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		: 3000.213
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		: 3000.213
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1726024 kB
Buffers:         42152 kB
Cached:         145256 kB
SwapCached:          0 kB
Active:         174664 kB
Inactive:        97468 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1726024 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2288 kB
Writeback:           0 kB
Mapped:         105128 kB
Slab:            42684 kB
Committed_AS:   988708 kB
PageTables:       1904 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66284 MiB
End job on node8 at 2009-07-12 17:23:25