Trace number 2093331

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 ACSAT 0.665898 0.685163

DiagnosticValue
CHECKS242
NODES8

General information on the benchmark

Namecsp/langford/
normalized-langford-2-4-ext.xml
MD5SUM44ab68d9c3df9bda125b0db430afe12c
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.006998
Satisfiable
(Un)Satisfiability was proved
Number of variables8
Number of constraints32
Maximum constraint arity2
Maximum domain size8
Number of constraints which are defined in extension32
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.07/0.09	
0.07/0.09	Abscon 112 (May, 2008)
0.19/0.25	
0.19/0.25	   configuration
0.19/0.25	     name=mac.xml
0.19/0.29	   
0.19/0.29	   instance
0.19/0.29	     name=HOME/instance-2093331-1247401160.xml
0.29/0.33	   
0.29/0.33	   domains being loaded...
0.29/0.34	   
0.29/0.34	   variables being loaded...
0.29/0.36	     nbVariables=8  nbDomainTypes=1  minDomainSize=8  maxDomainSize=8  nbTotalValues=64
0.29/0.36	       =>  wckTime=0.106  cpuTime=0.1  mem=7M892
0.29/0.36	   
0.29/0.36	   relations being loaded...
0.29/0.36	   
0.29/0.37	   constraints being loaded...
0.39/0.44	     nbConstraints=29  nbRelationTypes=5  nbGlobalConstraints=1  nbMergedConstraints=4  nbExtensionStructures=5
0.39/0.44	     nbSharedExtensionStructures=23  nbConflictsStructures=5  nbSharedConflictsStructures=23
0.39/0.44	     nbSharedBinaryRepresentations=63  minDegree=8  maxDegree=8  minArity=2  avgArity=2.21  maxArity=8  nbGenerators=0
0.39/0.44	     nbFusions=0  symmetryWckTime=0.029  symmetryCpuTime=0.02  nbCliques=1
0.39/0.44	       =>  wckTime=0.187  cpuTime=0.16  mem=12M842
0.39/0.50	   
0.39/0.50	   solver IterativeSystematicSolver being built... 
0.48/0.57	   
0.48/0.57	   INFO : Forward propagation technique limited 
0.59/0.64	       =>  wckTime=0.382  cpuTime=0.28  mem=18M448
0.59/0.64	   
0.59/0.64	   preprocessing
0.59/0.64	     nbConstraintChecks=64  nbPropagations=12  nbRevisions=8  nbUselessRevisions=0  nbRemovedValues=28
0.59/0.64	     detectedInconsistency=no
0.59/0.64	       =>  wckTime=0.0030  cpuTime=0.0  mem=19M456
0.59/0.65	   
0.59/0.65	   search
0.59/0.65	     run=0  nbConstraintChecks=178  minDepth=9  maxDepth=8  nbPropagations=36  nbRevisions=68  nbUselessRevisions=44
0.59/0.65	     nbAssignments=8  nbFailedAssignments=0  nbBacktracks=0  nbVisitedNodes=9  nbRestartNogoods=0  nbFoundSolutions=1
0.59/0.65	     mapSize=0  nbInferences=0  nbTooLargeKeys=0  nbSEliminables=0  nbREliminables=0  nbIEliminables=6.29
0.59/0.65	     nbDEliminables=0  nbPEliminables=0
0.59/0.65	       =>  wckTime=0.015  cpuTime=0.01  mem=20M480
0.59/0.66	   
0.59/0.66	   global
0.59/0.66	     nbConstraintChecks=242  nbPropagations=48  nbRevisions=76  nbUselessRevisions=44  nbRestartNogoods=0
0.59/0.66	     solvingWckTime=0.018  solvingCpuTime=0.01  expiredTime=no  totalExploration=no  nbFoundSolutions=1
0.59/0.66	     firstSolutionCpuTime=0.29  globalCpuTime=0.33
0.59/0.66	       =>  wckTime=0.401  cpuTime=0.29  mem=20M480
0.59/0.66	   
0.59/0.66	s SATISFIABLE
0.59/0.66	v 1 4 2 0 3 7 6 5 
0.59/0.66	d NODES 8
0.59/0.66	d CHECKS 242
0.59/0.66	   
0.59/0.66	   totalWckTime=0.471  totalCpuTime=0.34

Verifier Data 

OK

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2093331-1247401160/watcher-2093331-1247401160 -o /tmp/evaluation-result-2093331-1247401160/solver-2093331-1247401160 -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-2093331-1247401160.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: 0.08 0.03 0.09 4/80 31388
/proc/meminfo: memFree=1696528/2055920 swapFree=4192812/4192956
[pid=31388] ppid=31386 vsize=10676 CPUtime=0
/proc/31388/stat : 31388 (java) S 31386 31388 31177 0 -1 0 678 0 0 0 0 0 0 0 18 0 2 0 27182008 10932224 474 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/31388/statm: 2669 474 207 9 0 1184 0
[pid=31388/tid=31389] ppid=31386 vsize=10676 CPUtime=0
/proc/31388/task/31389/stat : 31389 (java) R 31386 31388 31177 0 -1 64 0 0 0 0 0 0 0 0 19 0 2 0 27182009 10932224 474 996147200 134512640 134550932 4294955968 18446744073709551615 8568792 0 0 4096 0 0 0 0 -1 1 0 0

[startup+0.08866 s]
/proc/loadavg: 0.08 0.03 0.09 4/80 31388
/proc/meminfo: memFree=1696528/2055920 swapFree=4192812/4192956
[pid=31388] ppid=31386 vsize=865956 CPUtime=0.07
/proc/31388/stat : 31388 (java) S 31386 31388 31177 0 -1 0 3552 0 1 0 6 1 0 0 18 0 9 0 27182008 886738944 3037 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/31388/statm: 216489 3037 1602 9 0 210981 0
[pid=31388/tid=31389] ppid=31386 vsize=865956 CPUtime=0.06
/proc/31388/task/31389/stat : 31389 (java) R 31386 31388 31177 0 -1 64 2636 0 1 0 5 1 0 0 20 0 9 0 27182009 886738944 3037 996147200 134512640 134550932 4294955968 18446744073709551615 4159514095 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 865956

[startup+0.101659 s]
/proc/loadavg: 0.08 0.03 0.09 4/80 31388
/proc/meminfo: memFree=1696528/2055920 swapFree=4192812/4192956
[pid=31388] ppid=31386 vsize=865984 CPUtime=0.08
/proc/31388/stat : 31388 (java) S 31386 31388 31177 0 -1 0 3732 0 1 0 7 1 0 0 18 0 9 0 27182008 886767616 3200 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/31388/statm: 216496 3200 1695 9 0 210981 0
[pid=31388/tid=31389] ppid=31386 vsize=865984 CPUtime=0.07
/proc/31388/task/31389/stat : 31389 (java) R 31386 31388 31177 0 -1 64 2815 0 1 0 6 1 0 0 18 0 9 0 27182009 886767616 3200 996147200 134512640 134550932 4294955968 18446744073709551615 102829218 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 865984

[startup+0.301672 s]
/proc/loadavg: 0.08 0.03 0.09 4/80 31388
/proc/meminfo: memFree=1696528/2055920 swapFree=4192812/4192956
[pid=31388] ppid=31386 vsize=866380 CPUtime=0.29
/proc/31388/stat : 31388 (java) S 31386 31388 31177 0 -1 0 5895 0 1 0 26 3 0 0 18 0 9 0 27182008 887173120 5261 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/31388/statm: 216595 5261 1983 9 0 211053 0
[pid=31388/tid=31389] ppid=31386 vsize=866380 CPUtime=0.24
/proc/31388/task/31389/stat : 31389 (java) R 31386 31388 31177 0 -1 64 4913 0 1 0 21 3 0 0 18 0 9 0 27182009 887173120 5261 996147200 134512640 134550932 4294955968 18446744073709551615 102241870 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 866380

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

[startup+0.501688 s]
/proc/loadavg: 0.08 0.03 0.09 4/80 31388
/proc/meminfo: memFree=1696528/2055920 swapFree=4192812/4192956
[pid=31388] ppid=31386 vsize=867364 CPUtime=0.48
/proc/31388/stat : 31388 (java) S 31386 31388 31177 0 -1 0 10402 142 1 0 43 5 0 0 18 0 10 0 27182008 888180736 7672 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/31388/statm: 216841 7672 2650 9 0 211277 0
[pid=31388/tid=31389] ppid=31386 vsize=867364 CPUtime=0.36
/proc/31388/task/31389/stat : 31389 (java) R 31386 31388 31177 0 -1 64 7024 142 1 0 32 4 0 0 18 0 10 0 27182009 888180736 7672 996147200 134512640 134550932 4294955968 18446744073709551615 4125963252 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.48
Current children cumulated vsize (KiB) 867364

[startup+0.601701 s]
/proc/loadavg: 0.08 0.03 0.09 4/80 31388
/proc/meminfo: memFree=1696528/2055920 swapFree=4192812/4192956
[pid=31388] ppid=31386 vsize=867364 CPUtime=0.59
/proc/31388/stat : 31388 (java) S 31386 31388 31177 0 -1 0 12487 142 1 0 53 6 0 0 18 0 10 0 27182008 888180736 7797 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/31388/statm: 216841 7797 2651 9 0 211277 0
[pid=31388/tid=31389] ppid=31386 vsize=867364 CPUtime=0.43
/proc/31388/task/31389/stat : 31389 (java) R 31386 31388 31177 0 -1 64 9091 142 1 0 39 4 0 0 18 0 10 0 27182009 888180736 7797 996147200 134512640 134550932 4294955968 18446744073709551615 4159724129 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 867364

Child status: 0
Real time (s): 0.685163
CPU time (s): 0.665898
CPU user time (s): 0.581911
CPU system time (s): 0.083987
CPU usage (%): 97.1883
Max. virtual memory (cumulated for all children) (KiB): 867364

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.581911
system time used= 0.083987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15089
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= 543
involuntary context switches= 613

runsolver used 0.003999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node34 at 2009-07-12 14:19:20
IDJOB=2093331
IDBENCH=53519
IDSOLVER=773
FILE ID=node34/2093331-1247401160
PBS_JOBID= 9510576
Free space on /tmp= 66324 MiB

SOLVER NAME= Abscon 112v4 AC
BENCH NAME= CPAI08/csp/langford/normalized-langford-2-4-ext.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-2093331-1247401160/watcher-2093331-1247401160 -o /tmp/evaluation-result-2093331-1247401160/solver-2093331-1247401160 -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-2093331-1247401160.xml

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

MD5SUM BENCH= 44ab68d9c3df9bda125b0db430afe12c
RANDOM SEED=775737270

node34.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		: 3000.232
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		: 3000.232
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:       1697208 kB
Buffers:         65964 kB
Cached:         201208 kB
SwapCached:          0 kB
Active:         184292 kB
Inactive:       106912 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1697208 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4552 kB
Writeback:           0 kB
Mapped:          41424 kB
Slab:            52888 kB
Committed_AS:  1001200 kB
PageTables:       1792 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= 66320 MiB
End job on node34 at 2009-07-12 14:19:21