Trace number 2094065

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 0.919859 0.941807

DiagnosticValue
CHECKS931
NODES52

General information on the benchmark

Namecsp/QG3/
normalized-quasigroup3-4.xml
MD5SUMca22e2230a62e25984fb143194eff8d1
Bench CategoryAlldiff+Elt+WSum (alldiff,element,weightedsum)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.010997
Satisfiable
(Un)Satisfiability was proved
Number of variables52
Number of constraints39
Maximum constraint arity18
Maximum domain size16
Number of constraints which are defined in extension0
Number of constraints which are defined in intension15
Global constraints used (with number of constraints)alldifferent(8),element(16)

Solver Data 

0.03/0.08	
0.03/0.08	Abscon 112 (May, 2008)
0.19/0.24	
0.19/0.24	   configuration
0.19/0.24	     name=mac.xml
0.19/0.27	   
0.19/0.27	   instance
0.19/0.27	     name=HOME/instance-2094065-1247402362.xml
0.29/0.30	   
0.29/0.30	   domains being loaded...
0.29/0.31	   
0.29/0.31	   variables being loaded...
0.29/0.34	     nbVariables=52  nbDomainTypes=12  minDomainSize=1  maxDomainSize=16  nbTotalValues=349
0.29/0.34	       =>  wckTime=0.107  cpuTime=0.09  mem=7M892
0.29/0.34	   
0.29/0.34	   predicates being loaded...
0.39/0.40	   
0.39/0.41	   constraints being loaded...
0.59/0.64	     nbConstraints=279  nbUnaryConstraints=3  nbGlobalConstraints=11  nbSingletonDomainVariables=23  nbPurgedValues=45
0.59/0.64	     nbDisconnectedVariables=4  nbConflictsStructures=86  nbSharedConflictsStructures=182
0.59/0.64	     nbSharedBinaryRepresentations=0  nbEvaluationManagers=86  nbSharedEvaluationManagers=182  minDegree=1  maxDegree=20
0.59/0.64	     minArity=2  avgArity=2.99  maxArity=3  nbGenerators=3  nbFusions=0  symmetryWckTime=0.065  symmetryCpuTime=0.04
0.59/0.64	       =>  wckTime=0.403  cpuTime=0.29  mem=16M704
0.68/0.71	   
0.68/0.71	   solver IterativeSystematicSolver being built... 
0.68/0.78	   
0.68/0.79	   INFO : Forward propagation technique limited 
0.78/0.85	       =>  wckTime=0.612  cpuTime=0.43  mem=22M685
0.78/0.87	   
0.78/0.87	   preprocessing
0.78/0.87	     nbConstraintChecks=522  nbValidityChecks=24  nbPropagations=52  nbRevisions=152  nbUselessRevisions=24
0.78/0.87	     nbRemovedValues=176  detectedInconsistency=no
0.78/0.87	       =>  wckTime=0.017  cpuTime=0.01  mem=22M685
0.88/0.90	   
0.88/0.90	   search
0.88/0.90	     run=0  nbConstraintChecks=409  nbValidityChecks=88  minDepth=53  maxDepth=52  nbPropagations=129  nbRevisions=794
0.88/0.90	     nbUselessRevisions=649  nbAssignments=52  nbFailedAssignments=0  nbBacktracks=0  nbVisitedNodes=53
0.88/0.90	     nbRestartNogoods=0  nbFoundSolutions=1  mapSize=0  nbInferences=0  nbTooLargeKeys=0  nbSEliminables=0
0.88/0.90	     nbREliminables=28.49  nbIEliminables=19.29  nbDEliminables=0  nbPEliminables=0
0.88/0.90	       =>  wckTime=0.05  cpuTime=0.04  mem=23M661
0.88/0.90	   
0.88/0.90	   global
0.88/0.90	     nbConstraintChecks=931  nbValidityChecks=112  nbPropagations=181  nbRevisions=946  nbUselessRevisions=673
0.88/0.90	     nbRestartNogoods=0  solvingWckTime=0.052  solvingCpuTime=0.04  expiredTime=no  totalExploration=no
0.88/0.90	     nbFoundSolutions=1  firstSolutionCpuTime=0.46  globalCpuTime=0.52
0.88/0.90	       =>  wckTime=0.665  cpuTime=0.47  mem=23M661
0.88/0.90	   
0.88/0.90	s SATISFIABLE
0.88/0.90	v 1 3 4 2 4 2 1 3 2 4 3 1 3 1 2 4 1 1 1 12 1 14 1 7 1 15 2 1 6 2 4 2 9 2 8 3 13 3 1 11 3 2 3 10 4 3 4 5 4 1 16 4 
0.88/0.90	d NODES 52
0.88/0.90	d CHECKS 931
0.88/0.91	   
0.88/0.91	   totalWckTime=0.731  totalCpuTime=0.52

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-2094065-1247402362/watcher-2094065-1247402362 -o /tmp/evaluation-result-2094065-1247402362/solver-2094065-1247402362 -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-2094065-1247402362.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 2.00 1.48 4/80 2528
/proc/meminfo: memFree=1804560/2055920 swapFree=4192812/4192956
[pid=2528] ppid=2526 vsize=272 CPUtime=0
/proc/2528/stat : 2528 (java) R 2526 2528 32688 0 -1 0 217 0 0 0 0 0 0 0 18 0 1 0 27299682 278528 37 996147200 134512640 134550932 4294955968 18446744073709551615 2621530 0 0 4096 0 0 0 0 17 0 0 0
/proc/2528/statm: 68 37 28 9 0 6 0

[startup+0.044691 s]
/proc/loadavg: 2.08 2.00 1.48 4/80 2528
/proc/meminfo: memFree=1804560/2055920 swapFree=4192812/4192956
[pid=2528] ppid=2526 vsize=863616 CPUtime=0.03
/proc/2528/stat : 2528 (java) S 2526 2528 32688 0 -1 0 2434 0 1 0 2 1 0 0 18 0 9 0 27299682 884342784 2004 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/2528/statm: 215904 2004 911 9 0 210819 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 863616

[startup+0.10132 s]
/proc/loadavg: 2.08 2.00 1.48 4/80 2528
/proc/meminfo: memFree=1804560/2055920 swapFree=4192812/4192956
[pid=2528] ppid=2526 vsize=865980 CPUtime=0.09
/proc/2528/stat : 2528 (java) S 2526 2528 32688 0 -1 0 3818 0 1 0 7 2 0 0 18 0 9 0 27299682 886763520 3265 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/2528/statm: 216495 3265 1722 9 0 210980 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 865980

[startup+0.301337 s]
/proc/loadavg: 2.08 2.00 1.48 4/80 2528
/proc/meminfo: memFree=1804560/2055920 swapFree=4192812/4192956
[pid=2528] ppid=2526 vsize=866500 CPUtime=0.29
/proc/2528/stat : 2528 (java) S 2526 2528 32688 0 -1 0 6120 0 1 0 25 4 0 0 18 0 9 0 27299682 887296000 5486 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/2528/statm: 216625 5486 1987 9 0 211083 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 866500

[startup+0.701381 s]
/proc/loadavg: 2.08 2.00 1.48 4/80 2528
/proc/meminfo: memFree=1804560/2055920 swapFree=4192812/4192956
[pid=2528] ppid=2526 vsize=867328 CPUtime=0.68
/proc/2528/stat : 2528 (java) S 2526 2528 32688 0 -1 0 12310 175 1 0 61 7 0 0 18 0 10 0 27299682 888143872 8978 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/2528/statm: 216832 8978 2650 9 0 211268 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 867328

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

[startup+0.901399 s]
/proc/loadavg: 2.08 2.00 1.48 4/80 2528
/proc/meminfo: memFree=1804560/2055920 swapFree=4192812/4192956
[pid=2528] ppid=2526 vsize=868352 CPUtime=0.88
/proc/2528/stat : 2528 (java) S 2526 2528 32688 0 -1 0 16684 298 1 0 79 9 0 0 18 0 9 0 27299682 889192448 11078 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/2528/statm: 217088 11078 2657 9 0 211524 0
Current children cumulated CPU time (s) 0.88
Current children cumulated vsize (KiB) 868352

Child status: 0
Real time (s): 0.941807
CPU time (s): 0.919859
CPU user time (s): 0.815875
CPU system time (s): 0.103984
CPU usage (%): 97.6696
Max. virtual memory (cumulated for all children) (KiB): 868352

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.815875
system time used= 0.103984
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 17107
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= 863
involuntary context switches= 893

runsolver used 0.002999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node51 at 2009-07-12 14:39:22
IDJOB=2094065
IDBENCH=53931
IDSOLVER=773
FILE ID=node51/2094065-1247402362
PBS_JOBID= 9510543
Free space on /tmp= 66204 MiB

SOLVER NAME= Abscon 112v4 AC
BENCH NAME= CPAI08/csp/QG3/normalized-quasigroup3-4.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-2094065-1247402362/watcher-2094065-1247402362 -o /tmp/evaluation-result-2094065-1247402362/solver-2094065-1247402362 -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-2094065-1247402362.xml

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

MD5SUM BENCH= ca22e2230a62e25984fb143194eff8d1
RANDOM SEED=947591752

node51.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		: 3000.225
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		: 3000.225
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:       1805040 kB
Buffers:         40032 kB
Cached:         100456 kB
SwapCached:          0 kB
Active:         144364 kB
Inactive:        47556 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1805040 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2164 kB
Writeback:           0 kB
Mapped:          71876 kB
Slab:            44156 kB
Committed_AS:  1019708 kB
PageTables:       1876 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= 66204 MiB
End job on node51 at 2009-07-12 14:39:23