Trace number 2097367

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 1.12283 1.15259

DiagnosticValue
CHECKS122460
NODES439

General information on the benchmark

Namecsp/langford3/
normalized-langford-3-9.xml
MD5SUM4946dac57d3a5f718abc011f73dae562
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.030994
Satisfiable
(Un)Satisfiability was proved
Number of variables27
Number of constraints369
Maximum constraint arity2
Maximum domain size27
Number of constraints which are defined in extension0
Number of constraints which are defined in intension369
Global constraints used (with number of constraints)

Solver Data 

0.00/0.09	
0.00/0.09	Abscon 112 (May, 2008)
0.18/0.22	
0.18/0.22	   configuration
0.18/0.22	     name=mac.xml
0.18/0.27	   
0.18/0.27	   instance
0.18/0.27	     name=HOME/instance-2097367-1247412203.xml
0.28/0.31	   
0.28/0.31	   domains being loaded...
0.28/0.32	   
0.28/0.32	   variables being loaded...
0.28/0.35	     nbVariables=27  nbDomainTypes=1  minDomainSize=27  maxDomainSize=27  nbTotalValues=729
0.28/0.35	       =>  wckTime=0.122  cpuTime=0.11  mem=7M892
0.28/0.35	   
0.28/0.35	   predicates being loaded...
0.38/0.44	   
0.38/0.44	   constraints being loaded...
0.69/0.76	     nbConstraints=352  nbGlobalConstraints=1  nbMergedConstraints=18  nbConvertedConstraints=351
0.69/0.76	     nbConvertConstraintsChecks=7290  nbExtensionStructures=10  nbSharedExtensionStructures=341
0.69/0.76	     nbConflictsStructures=10  nbSharedConflictsStructures=341  nbSharedBinaryRepresentations=485  minDegree=27
0.69/0.76	     maxDegree=27  minArity=2  avgArity=2.07  maxArity=27  nbGenerators=0  nbFusions=0  symmetryWckTime=0.064
0.69/0.76	     symmetryCpuTime=0.03  nbCliques=1
0.69/0.76	       =>  wckTime=0.533  cpuTime=0.37  mem=15M800
0.77/0.81	   
0.77/0.81	   solver IterativeSystematicSolver being built... 
0.77/0.87	   
0.77/0.87	   INFO : Forward propagation technique limited 
0.87/0.93	       =>  wckTime=0.708  cpuTime=0.48  mem=19M783
0.87/0.95	   
0.87/0.95	   preprocessing
0.87/0.95	     nbConstraintChecks=1107  nbPropagations=45  nbRevisions=45  nbUselessRevisions=0  nbRemovedValues=324
0.87/0.95	     detectedInconsistency=no
0.87/0.95	       =>  wckTime=0.014  cpuTime=0.01  mem=19M783
1.07/1.12	   
1.07/1.12	   search
1.07/1.12	     run=4  nbConstraintChecks=121353  minDepth=3  maxDepth=27  nbPropagations=11801  nbRevisions=66953
1.07/1.12	     nbUselessRevisions=51651  nbAssignments=439  nbFailedAssignments=100  nbBacktracks=285  nbVisitedNodes=610
1.07/1.12	     nbRestartNogoods=8  nbFoundSolutions=1  mapSize=94  nbInferences=0  nbTooLargeKeys=0  nbSEliminables=0
1.07/1.12	     nbREliminables=0  nbIEliminables=23.59  nbDEliminables=0  nbPEliminables=0
1.07/1.12	       =>  wckTime=0.183  cpuTime=0.13  mem=21M750
1.07/1.12	   
1.07/1.12	   global
1.07/1.12	     nbConstraintChecks=122460  nbPropagations=11846  nbRevisions=66998  nbUselessRevisions=51651  nbRestartNogoods=8
1.07/1.12	     solvingWckTime=0.185  solvingCpuTime=0.14  expiredTime=no  totalExploration=no  nbFoundSolutions=1
1.07/1.12	     firstSolutionCpuTime=0.61  globalCpuTime=0.67
1.07/1.12	       =>  wckTime=0.895  cpuTime=0.62  mem=21M750
1.07/1.12	   
1.07/1.12	s SATISFIABLE
1.07/1.12	v 0 6 18 15 7 3 8 5 1 2 9 22 20 13 10 16 14 11 4 12 26 25 19 17 24 23 21 
1.07/1.12	d NODES 439
1.07/1.12	d CHECKS 122460
1.07/1.12	   
1.07/1.12	   totalWckTime=0.944  totalCpuTime=0.67

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-2097367-1247412203/watcher-2097367-1247412203 -o /tmp/evaluation-result-2097367-1247412203/solver-2097367-1247412203 -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-2097367-1247412203.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 5/81 31164
/proc/meminfo: memFree=1725672/2055920 swapFree=4192812/4192956
[pid=31164] ppid=31162 vsize=18576 CPUtime=0
/proc/31164/stat : 31164 (runsolver) R 31162 31164 28467 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 28287560 19021824 284 996147200 4194304 4302564 548682068384 18446744073709551615 228706544935 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/31164/statm: 4644 284 249 26 0 2626 0

[startup+0.019868 s]
/proc/loadavg: 1.99 1.98 1.99 5/81 31164
/proc/meminfo: memFree=1725672/2055920 swapFree=4192812/4192956
[pid=31164] ppid=31162 vsize=860568 CPUtime=0
/proc/31164/stat : 31164 (java) S 31162 31164 28467 0 -1 0 1012 0 1 0 0 0 0 0 21 0 2 0 28287560 881221632 764 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 0 0 0
/proc/31164/statm: 215142 764 381 9 0 213525 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 860568

[startup+0.101877 s]
/proc/loadavg: 1.99 1.98 1.99 5/81 31164
/proc/meminfo: memFree=1725672/2055920 swapFree=4192812/4192956
[pid=31164] ppid=31162 vsize=866696 CPUtime=0.08
/proc/31164/stat : 31164 (java) S 31162 31164 28467 0 -1 0 3741 0 1 0 6 2 0 0 21 0 9 0 28287560 887496704 3207 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/31164/statm: 216674 3207 1695 9 0 211159 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 866696

[startup+0.301899 s]
/proc/loadavg: 1.99 1.98 1.99 5/81 31164
/proc/meminfo: memFree=1725672/2055920 swapFree=4192812/4192956
[pid=31164] ppid=31162 vsize=867036 CPUtime=0.28
/proc/31164/stat : 31164 (java) S 31162 31164 28467 0 -1 0 5961 0 1 0 24 4 0 0 21 0 9 0 28287560 887844864 5327 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/31164/statm: 216759 5327 1985 9 0 211217 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 867036

[startup+0.701935 s]
/proc/loadavg: 1.99 1.98 1.99 5/81 31164
/proc/meminfo: memFree=1725672/2055920 swapFree=4192812/4192956
[pid=31164] ppid=31162 vsize=868148 CPUtime=0.69
/proc/31164/stat : 31164 (java) S 31162 31164 28467 0 -1 0 8250 0 1 0 62 7 0 0 21 0 9 0 28287560 888983552 7602 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/31164/statm: 217037 7602 2036 9 0 211473 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 868148

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

[startup+1.10697 s]
/proc/loadavg: 1.99 1.98 1.99 4/90 31177
/proc/meminfo: memFree=1693600/2055920 swapFree=4192812/4192956
[pid=31164] ppid=31162 vsize=868796 CPUtime=1.07
/proc/31164/stat : 31164 (java) S 31162 31164 28467 0 -1 0 16100 294 1 0 98 9 0 0 21 0 9 0 28287560 889647104 10563 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/31164/statm: 217199 10563 2656 9 0 211635 0
[pid=31164/tid=31166] ppid=31162 vsize=868796 CPUtime=0.8
/proc/31164/task/31166/stat : 31166 (java) R 31162 31164 28467 0 -1 64 12046 294 1 0 73 7 0 0 24 0 9 0 28287562 889647104 10563 996147200 134512640 134550932 4294955968 18446744073709551615 4126994752 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=31164/tid=31167] ppid=31162 vsize=868796 CPUtime=0.03
/proc/31164/task/31167/stat : 31167 (java) S 31162 31164 28467 0 -1 64 2429 294 0 0 3 0 0 0 16 0 9 0 28287563 889647104 10563 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 0 0 0
[pid=31164/tid=31168] ppid=31162 vsize=868796 CPUtime=0
/proc/31164/task/31168/stat : 31168 (java) S 31162 31164 28467 0 -1 64 19 294 0 0 0 0 0 0 16 0 9 0 28287563 889647104 10563 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=31164/tid=31169] ppid=31162 vsize=868796 CPUtime=0
/proc/31164/task/31169/stat : 31169 (java) S 31162 31164 28467 0 -1 64 11 294 0 0 0 0 0 0 15 0 9 0 28287563 889647104 10563 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=31164/tid=31170] ppid=31162 vsize=868796 CPUtime=0
/proc/31164/task/31170/stat : 31170 (java) S 31162 31164 28467 0 -1 64 1 294 0 0 0 0 0 0 25 0 9 0 28287565 889647104 10563 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=31164/tid=31171] ppid=31162 vsize=868796 CPUtime=0.21
/proc/31164/task/31171/stat : 31171 (java) S 31162 31164 28467 0 -1 64 776 294 0 0 21 0 0 0 16 0 9 0 28287565 889647104 10563 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=31164/tid=31172] ppid=31162 vsize=868796 CPUtime=0
/proc/31164/task/31172/stat : 31172 (java) S 31162 31164 28467 0 -1 64 0 294 0 0 0 0 0 0 25 0 9 0 28287565 889647104 10563 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=31164/tid=31173] ppid=31162 vsize=868796 CPUtime=0
/proc/31164/task/31173/stat : 31173 (java) S 31162 31164 28467 0 -1 64 8 294 0 0 0 0 0 0 15 0 9 0 28287565 889647104 10563 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) 868796

Child status: 0
Real time (s): 1.15259
CPU time (s): 1.12283
CPU user time (s): 1.01085
CPU system time (s): 0.111982
CPU usage (%): 97.4181
Max. virtual memory (cumulated for all children) (KiB): 868796

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.01085
system time used= 0.111982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16520
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= 831
involuntary context switches= 895

runsolver used 0.004999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node8 at 2009-07-12 17:23:23
IDJOB=2097367
IDBENCH=57196
IDSOLVER=773
FILE ID=node8/2097367-1247412203
PBS_JOBID= 9510628
Free space on /tmp= 66288 MiB

SOLVER NAME= Abscon 112v4 AC
BENCH NAME= CPAI08/csp/langford3/normalized-langford-3-9.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-2097367-1247412203/watcher-2097367-1247412203 -o /tmp/evaluation-result-2097367-1247412203/solver-2097367-1247412203 -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-2097367-1247412203.xml

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

MD5SUM BENCH= 4946dac57d3a5f718abc011f73dae562
RANDOM SEED=1262238737

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:       1726088 kB
Buffers:         42124 kB
Cached:         145284 kB
SwapCached:          0 kB
Active:         174668 kB
Inactive:        97448 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1726088 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2320 kB
Writeback:           0 kB
Mapped:         105128 kB
Slab:            42672 kB
Committed_AS:   988648 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 17:23:24