Trace number 2097606

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 ESACSAT 0.968852 1.0101

DiagnosticValue
CHECKS14634
NODES26

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-12.xml
MD5SUMd6c891b9ac0cbf4d59d1582e9ae13767
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 benchmark0.014997
Satisfiable
(Un)Satisfiability was proved
Number of variables24
Number of constraints288
Maximum constraint arity2
Maximum domain size24
Number of constraints which are defined in extension0
Number of constraints which are defined in intension288
Global constraints used (with number of constraints)

Solver Data 

0.04/0.09	
0.04/0.09	Abscon 112 (May, 2008)
0.18/0.26	
0.18/0.26	   configuration
0.18/0.26	     name=esac.xml
0.18/0.30	   
0.18/0.30	   instance
0.29/0.30	     name=HOME/instance-2097606-1247413592.xml
0.29/0.33	   
0.29/0.33	   domains being loaded...
0.29/0.34	   
0.29/0.34	   variables being loaded...
0.29/0.37	     nbVariables=24  nbDomainTypes=1  minDomainSize=24  maxDomainSize=24  nbTotalValues=576
0.29/0.37	       =>  wckTime=0.11  cpuTime=0.1  mem=7M892
0.29/0.37	   
0.29/0.37	   predicates being loaded...
0.38/0.44	   
0.38/0.44	   constraints being loaded...
0.68/0.71	     nbConstraints=277  nbGlobalConstraints=1  nbMergedConstraints=12  nbConvertedConstraints=276
0.68/0.71	     nbConvertConstraintsChecks=7488  nbExtensionStructures=13  nbSharedExtensionStructures=263
0.68/0.71	     nbConflictsStructures=13  nbSharedConflictsStructures=263  nbSharedBinaryRepresentations=575  minDegree=24
0.68/0.71	     maxDegree=24  minArity=2  avgArity=2.08  maxArity=24  nbGenerators=0  nbFusions=0  symmetryWckTime=0.068
0.68/0.71	     symmetryCpuTime=0.02  nbCliques=1
0.68/0.71	       =>  wckTime=0.445  cpuTime=0.32  mem=15M768
0.68/0.76	   
0.68/0.76	   solver IterativeSystematicSolver being built... 
0.77/0.83	   
0.77/0.83	   INFO : Forward propagation technique limited 
0.77/0.89	       =>  wckTime=0.633  cpuTime=0.44  mem=19M648
0.87/0.94	   
0.87/0.94	   preprocessing
0.87/0.94	     nbConstraintChecks=9448  nbPropagations=342  nbRevisions=894  nbUselessRevisions=590  nbSingletonTests=26
0.87/0.94	     nbEffectiveSingletonTests=0  nbACRemovals=180  nbFoundSingletons=0  nbRemovedValues=180  detectedInconsistency=no
0.87/0.94	       =>  wckTime=0.04  cpuTime=0.02  mem=20M688
0.87/0.96	   
0.87/0.96	   search
0.87/0.96	     run=0  nbConstraintChecks=5186  minDepth=14  maxDepth=24  nbPropagations=556  nbRevisions=1498
0.87/0.96	     nbUselessRevisions=1006  nbAssignments=26  nbFailedAssignments=2  nbBacktracks=0  nbVisitedNodes=29
0.87/0.96	     nbRestartNogoods=0  nbFoundSolutions=1  mapSize=0  nbInferences=0  nbTooLargeKeys=0  nbSEliminables=0
0.87/0.96	     nbREliminables=0  nbIEliminables=18.13  nbDEliminables=0  nbPEliminables=0
0.87/0.96	       =>  wckTime=0.065  cpuTime=0.04  mem=21M729
0.87/0.96	   
0.87/0.96	   global
0.87/0.96	     nbConstraintChecks=14634  nbPropagations=898  nbRevisions=2392  nbUselessRevisions=1596  nbRestartNogoods=0
0.87/0.96	     solvingWckTime=0.067  solvingCpuTime=0.04  expiredTime=no  totalExploration=no  nbFoundSolutions=1
0.87/0.96	     firstSolutionCpuTime=0.48  globalCpuTime=0.53
0.87/0.97	       =>  wckTime=0.702  cpuTime=0.49  mem=21M729
0.87/0.97	   
0.87/0.97	s SATISFIABLE
0.87/0.97	v 19 20 18 7 3 4 8 1 5 6 2 0 21 23 22 12 9 11 16 10 15 17 14 13 
0.87/0.97	d NODES 26
0.87/0.97	d CHECKS 14634
0.87/0.97	   
0.87/0.97	   totalWckTime=0.774  totalCpuTime=0.53

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-2097606-1247413592/watcher-2097606-1247413592 -o /tmp/evaluation-result-2097606-1247413592/solver-2097606-1247413592 -C 1800 -W 2000 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution esac.xml 1 XSax HOME/instance-2097606-1247413592.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: 2.09 2.02 2.00 4/80 722
/proc/meminfo: memFree=1459456/2055920 swapFree=4192812/4192956
[pid=722] ppid=720 vsize=10676 CPUtime=0
/proc/722/stat : 722 (java) S 720 722 29967 0 -1 0 678 0 0 0 0 0 0 0 18 0 2 0 28426775 10932224 474 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 4096 0 18446744073709551615 0 0 17 1 0 0
/proc/722/statm: 2669 474 207 9 0 1184 0
[pid=722/tid=723] ppid=720 vsize=10676 CPUtime=0
/proc/722/task/723/stat : 723 (java) R 720 722 29967 0 -1 64 0 0 0 0 0 0 0 0 19 0 2 0 28426776 10932224 474 996147200 134512640 134550932 4294955968 18446744073709551615 11771864 0 0 4096 0 0 0 0 -1 1 0 0

[startup+0.0566859 s]
/proc/loadavg: 2.09 2.02 2.00 4/80 722
/proc/meminfo: memFree=1459456/2055920 swapFree=4192812/4192956
[pid=722] ppid=720 vsize=863776 CPUtime=0.04
/proc/722/stat : 722 (java) S 720 722 29967 0 -1 0 2593 0 1 0 3 1 0 0 18 0 9 0 28426775 884506624 2158 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/722/statm: 215944 2158 1024 9 0 210859 0
[pid=722/tid=723] ppid=720 vsize=863776 CPUtime=0.02
/proc/722/task/723/stat : 723 (java) R 720 722 29967 0 -1 64 1734 0 1 0 2 0 0 0 20 0 9 0 28426776 884506624 2158 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 863776

[startup+0.101693 s]
/proc/loadavg: 2.09 2.02 2.00 4/80 722
/proc/meminfo: memFree=1459456/2055920 swapFree=4192812/4192956
[pid=722] ppid=720 vsize=865984 CPUtime=0.08
/proc/722/stat : 722 (java) S 720 722 29967 0 -1 0 3731 0 1 0 7 1 0 0 18 0 9 0 28426775 886767616 3199 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/722/statm: 216496 3199 1700 9 0 210981 0
[pid=722/tid=723] ppid=720 vsize=865984 CPUtime=0.06
/proc/722/task/723/stat : 723 (java) R 720 722 29967 0 -1 64 2810 0 1 0 5 1 0 0 20 0 9 0 28426776 886767616 3199 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 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+0.301722 s]
/proc/loadavg: 2.09 2.02 2.00 4/80 722
/proc/meminfo: memFree=1459456/2055920 swapFree=4192812/4192956
[pid=722] ppid=720 vsize=866380 CPUtime=0.29
/proc/722/stat : 722 (java) S 720 722 29967 0 -1 0 5845 0 1 0 26 3 0 0 18 0 9 0 28426775 887173120 5211 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/722/statm: 216595 5211 1981 9 0 211053 0
[pid=722/tid=723] ppid=720 vsize=866380 CPUtime=0.22
/proc/722/task/723/stat : 723 (java) R 720 722 29967 0 -1 64 4864 0 1 0 20 2 0 0 21 0 9 0 28426776 887173120 5211 996147200 134512640 134550932 4294955968 18446744073709551615 4125960326 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

[startup+0.701792 s]
/proc/loadavg: 2.09 2.02 2.00 4/80 722
/proc/meminfo: memFree=1459456/2055920 swapFree=4192812/4192956
[pid=722] ppid=720 vsize=867820 CPUtime=0.68
/proc/722/stat : 722 (java) S 720 722 29967 0 -1 0 9187 161 1 0 61 7 0 0 18 0 10 0 28426775 888647680 7707 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/722/statm: 216955 7707 2049 9 0 211391 0
[pid=722/tid=723] ppid=720 vsize=867820 CPUtime=0.51
/proc/722/task/723/stat : 723 (java) R 720 722 29967 0 -1 64 7801 161 1 0 46 5 0 0 24 0 10 0 28426776 888647680 7707 996147200 134512640 134550932 4294955968 18446744073709551615 104183322 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 867820

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

[startup+0.901822 s]
/proc/loadavg: 2.09 2.02 2.00 4/80 722
/proc/meminfo: memFree=1459456/2055920 swapFree=4192812/4192956
[pid=722] ppid=720 vsize=867948 CPUtime=0.87
/proc/722/stat : 722 (java) S 720 722 29967 0 -1 0 15482 161 1 0 78 9 0 0 18 0 10 0 28426775 888778752 10174 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/722/statm: 216987 10174 2654 9 0 211423 0
[pid=722/tid=723] ppid=720 vsize=867948 CPUtime=0.64
/proc/722/task/723/stat : 723 (java) R 720 722 29967 0 -1 64 11596 161 1 0 57 7 0 0 17 0 10 0 28426776 888778752 10174 996147200 134512640 134550932 4294955968 18446744073709551615 4126662756 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 0.87
Current children cumulated vsize (KiB) 867948

[startup+1.00199 s]
/proc/loadavg: 2.09 2.02 2.00 3/82 735
/proc/meminfo: memFree=1446824/2055920 swapFree=4192812/4192956
[pid=722] ppid=720 vsize=0 CPUtime=0.95
/proc/722/stat : 722 (java) Z 720 722 29967 0 -1 12 15957 286 1 0 85 10 0 0 16 0 2 0 28426775 0 0 996147200 0 0 0 0 0 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/722/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 0.95
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 1.0101
CPU time (s): 0.968852
CPU user time (s): 0.85287
CPU system time (s): 0.115982
CPU usage (%): 95.9167
Max. virtual memory (cumulated for all children) (KiB): 867948

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.85287
system time used= 0.115982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16243
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= 969
involuntary context switches= 1042

runsolver used 0.001999 second user time and 0.015997 second system time

The end

Launcher Data 

Begin job on node3 at 2009-07-12 17:46:32
IDJOB=2097606
IDBENCH=57561
IDSOLVER=774
FILE ID=node3/2097606-1247413592
PBS_JOBID= 9510638
Free space on /tmp= 66408 MiB

SOLVER NAME= Abscon 112v4 ESAC
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-12.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution esac.xml 1 XSax BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2097606-1247413592/watcher-2097606-1247413592 -o /tmp/evaluation-result-2097606-1247413592/solver-2097606-1247413592 -C 1800 -W 2000 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -cp abscon112V4.jar abscon.Resolution esac.xml 1 XSax HOME/instance-2097606-1247413592.xml

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

MD5SUM BENCH= d6c891b9ac0cbf4d59d1582e9ae13767
RANDOM SEED=355147232

node3.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		: 3000.259
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		: 3000.259
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:       1459936 kB
Buffers:         43296 kB
Cached:         130648 kB
SwapCached:          0 kB
Active:         276648 kB
Inactive:       257276 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1459936 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2688 kB
Writeback:           0 kB
Mapped:         220684 kB
Slab:            47040 kB
Committed_AS:  1004724 kB
PageTables:       2120 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= 66404 MiB
End job on node3 at 2009-07-12 17:46:33