Trace number 2097179

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 0.911861 0.939901

DiagnosticValue
CHECKS27423
NODES63

General information on the benchmark

Namecsp/travellingSalesman-20/
normalized-tsp-20-68_ext.xml
MD5SUM078c82a6b82eec1c7c103c61b38fbabf
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.068988
Satisfiable
(Un)Satisfiability was proved
Number of variables61
Number of constraints230
Maximum constraint arity3
Maximum domain size1001
Number of constraints which are defined in extension230
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.02/0.08	
0.02/0.08	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-2097179-1247411889.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=61  nbDomainTypes=5  minDomainSize=1  maxDomainSize=1001  nbTotalValues=22398
0.28/0.35	       =>  wckTime=0.111  cpuTime=0.1  mem=8M867
0.28/0.35	   
0.28/0.35	   relations being loaded...
0.28/0.39	   
0.28/0.39	   constraints being loaded...
0.49/0.59	     nbConstraints=231  nbRelationTypes=23  nbGlobalConstraints=21  nbSingletonDomainVariables=2
0.49/0.59	     nbExtensionStructures=24  nbSharedExtensionStructures=206  nbConflictsStructures=24
0.49/0.59	     nbSharedConflictsStructures=206  nbSharedBinaryRepresentations=20290  minDegree=1  maxDegree=21  minArity=2
0.49/0.59	     avgArity=2.16  maxArity=20  nbGenerators=0  nbFusions=0  symmetryWckTime=0.069  symmetryCpuTime=0.04  nbCliques=1
0.49/0.59	       =>  wckTime=0.348  cpuTime=0.26  mem=17M703
0.58/0.64	   
0.58/0.64	   solver IterativeSystematicSolver being built... 
0.68/0.71	   
0.68/0.71	   INFO : Forward propagation technique limited 
0.68/0.78	       =>  wckTime=0.534  cpuTime=0.37  mem=21M478
0.78/0.83	   
0.78/0.83	   preprocessing
0.78/0.83	     nbConstraintChecks=23231  nbValidityChecks=111323  nbPropagations=132  nbRevisions=75  nbUselessRevisions=18
0.78/0.83	     nbRemovedValues=21769  detectedInconsistency=no
0.78/0.83	       =>  wckTime=0.05  cpuTime=0.03  mem=21M478
0.78/0.89	   
0.78/0.89	   search
0.78/0.89	     run=0  nbConstraintChecks=4192  nbValidityChecks=5160  minDepth=2  maxDepth=61  nbPropagations=522  nbRevisions=848
0.78/0.89	     nbUselessRevisions=626  nbAssignments=63  nbFailedAssignments=2  nbBacktracks=0  nbVisitedNodes=66
0.78/0.89	     nbRestartNogoods=0  nbFoundSolutions=1  mapSize=0  nbInferences=0  nbTooLargeKeys=0  nbSEliminables=0
0.78/0.89	     nbREliminables=2  nbIEliminables=54.27  nbDEliminables=0  nbPEliminables=0
0.78/0.89	       =>  wckTime=0.114  cpuTime=0.07  mem=22M453
0.78/0.90	   
0.78/0.90	   global
0.78/0.90	     nbConstraintChecks=27423  nbValidityChecks=116483  nbPropagations=654  nbRevisions=923  nbUselessRevisions=644
0.78/0.90	     nbRestartNogoods=0  solvingWckTime=0.117  solvingCpuTime=0.07  expiredTime=no  totalExploration=no
0.78/0.90	     nbFoundSolutions=1  firstSolutionCpuTime=0.44  globalCpuTime=0.49
0.78/0.90	       =>  wckTime=0.654  cpuTime=0.45  mem=22M453
0.88/0.90	   
0.88/0.90	s SATISFIABLE
0.88/0.90	v 18 5 10 4 19 2 15 3 6 6 14 3 12 2 1 13 11 9 20 10 5 16 9 3 16 0 2 7 13 9 3 6 4 5 7 0 8 0 17 0 9 11 14 20 23 25 38 47 57 73 76 76 83 92 98 103 103 103 103 103 0 
0.88/0.90	d NODES 63
0.88/0.90	d CHECKS 27423
0.88/0.90	   
0.88/0.90	   totalWckTime=0.724  totalCpuTime=0.49

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-2097179-1247411889/watcher-2097179-1247411889 -o /tmp/evaluation-result-2097179-1247411889/solver-2097179-1247411889 -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-2097179-1247411889.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: 2.02 2.04 2.00 4/80 30165
/proc/meminfo: memFree=1768360/2055920 swapFree=4192812/4192956
[pid=30165] ppid=30163 vsize=152 CPUtime=0
/proc/30165/stat : 30165 (java) R 30163 30165 26976 0 -1 0 205 0 0 0 0 0 0 0 18 0 1 0 28252224 155648 26 996147200 134512640 134550932 4294955968 18446744073709551615 6849316 0 0 4096 0 0 0 0 17 0 0 0
/proc/30165/statm: 50 26 19 9 0 4 0

[startup+0.0293621 s]
/proc/loadavg: 2.02 2.04 2.00 4/80 30165
/proc/meminfo: memFree=1768360/2055920 swapFree=4192812/4192956
[pid=30165] ppid=30163 vsize=861936 CPUtime=0.02
/proc/30165/stat : 30165 (java) S 30163 30165 26976 0 -1 0 2084 0 1 0 1 1 0 0 18 0 5 0 28252224 882622464 1736 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16784584 18446744073709551615 0 0 17 0 0 0
/proc/30165/statm: 215484 1738 798 9 0 210399 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 861936

[startup+0.101373 s]
/proc/loadavg: 2.02 2.04 2.00 4/80 30165
/proc/meminfo: memFree=1768360/2055920 swapFree=4192812/4192956
[pid=30165] ppid=30163 vsize=865980 CPUtime=0.09
/proc/30165/stat : 30165 (java) S 30163 30165 26976 0 -1 0 3797 0 1 0 7 2 0 0 18 0 9 0 28252224 886763520 3250 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/30165/statm: 216495 3251 1716 9 0 210980 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 865980

[startup+0.301389 s]
/proc/loadavg: 2.02 2.04 2.00 4/80 30165
/proc/meminfo: memFree=1768360/2055920 swapFree=4192812/4192956
[pid=30165] ppid=30163 vsize=866380 CPUtime=0.28
/proc/30165/stat : 30165 (java) S 30163 30165 26976 0 -1 0 6080 0 1 0 25 3 0 0 18 0 9 0 28252224 887173120 5446 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/30165/statm: 216595 5447 1986 9 0 211053 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 866380

[startup+0.701427 s]
/proc/loadavg: 2.02 2.04 2.00 4/80 30165
/proc/meminfo: memFree=1768360/2055920 swapFree=4192812/4192956
[pid=30165] ppid=30163 vsize=867028 CPUtime=0.68
/proc/30165/stat : 30165 (java) S 30163 30165 26976 0 -1 0 13454 283 1 0 62 6 0 0 18 0 9 0 28252224 887836672 9451 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/30165/statm: 216757 9451 2652 9 0 211193 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 867028

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

[startup+0.901446 s]
/proc/loadavg: 2.02 2.04 2.00 4/80 30165
/proc/meminfo: memFree=1768360/2055920 swapFree=4192812/4192956
[pid=30165] ppid=30163 vsize=867152 CPUtime=0.88
/proc/30165/stat : 30165 (java) S 30163 30165 26976 0 -1 0 16636 283 1 0 81 7 0 0 18 0 9 0 28252224 887963648 10724 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/30165/statm: 216788 10724 2656 9 0 211224 0
Current children cumulated CPU time (s) 0.88
Current children cumulated vsize (KiB) 867152

Child status: 0
Real time (s): 0.939901
CPU time (s): 0.911861
CPU user time (s): 0.820875
CPU system time (s): 0.090986
CPU usage (%): 97.0167
Max. virtual memory (cumulated for all children) (KiB): 867152

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.820875
system time used= 0.090986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 17033
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= 960
involuntary context switches= 1009

runsolver used 0.006998 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node55 at 2009-07-12 17:18:09
IDJOB=2097179
IDBENCH=56970
IDSOLVER=773
FILE ID=node55/2097179-1247411889
PBS_JOBID= 9510535
Free space on /tmp= 66392 MiB

SOLVER NAME= Abscon 112v4 AC
BENCH NAME= CPAI08/csp/travellingSalesman-20/normalized-tsp-20-68_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-2097179-1247411889/watcher-2097179-1247411889 -o /tmp/evaluation-result-2097179-1247411889/solver-2097179-1247411889 -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-2097179-1247411889.xml

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

MD5SUM BENCH= 078c82a6b82eec1c7c103c61b38fbabf
RANDOM SEED=1455999348

node55.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		: 3000.231
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		: 3000.231
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:       1768840 kB
Buffers:         36940 kB
Cached:         110144 kB
SwapCached:          0 kB
Active:         171660 kB
Inactive:        57964 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1768840 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2380 kB
Writeback:           0 kB
Mapped:         102972 kB
Slab:            42648 kB
Committed_AS:   998332 kB
PageTables:       1880 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= 66388 MiB
End job on node55 at 2009-07-12 17:18:10