Trace number 2097562

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 ESACUNSAT 1.88671 1.93615

DiagnosticValue
CHECKS100
NODES0

General information on the benchmark

Namecsp/super-queens/
normalized-super-queens-12.xml
MD5SUM12cac64112c90184707842af1dca4fb5
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.277957
Satisfiable
(Un)Satisfiability was proved
Number of variables100
Number of constraints3725
Maximum constraint arity2
Maximum domain size50
Number of constraints which are defined in extension0
Number of constraints which are defined in intension3725
Global constraints used (with number of constraints)

Solver Data 

0.03/0.09	
0.03/0.09	Abscon 112 (May, 2008)
0.18/0.25	
0.18/0.25	   configuration
0.18/0.25	     name=esac.xml
0.18/0.28	   
0.18/0.28	   instance
0.18/0.28	     name=HOME/instance-2097562-1247413538.xml
0.28/0.32	   
0.28/0.32	   domains being loaded...
0.28/0.33	   
0.28/0.33	   variables being loaded...
0.28/0.37	     nbVariables=100  nbDomainTypes=1  minDomainSize=50  maxDomainSize=50  nbTotalValues=5000
0.28/0.37	       =>  wckTime=0.118  cpuTime=0.09  mem=7M892
0.28/0.37	   
0.28/0.37	   predicates being loaded...
0.39/0.42	   
0.39/0.43	   constraints being loaded...
1.58/1.61	     nbConstraints=3727  nbGlobalConstraints=2  nbConvertedConstraints=3725  nbConvertConstraintsChecks=127500
1.58/1.61	     nbExtensionStructures=51  nbSharedExtensionStructures=3674  nbConflictsStructures=51
1.58/1.61	     nbSharedConflictsStructures=3674  nbSharedBinaryRepresentations=3517  minDegree=51  maxDegree=101  minArity=2
1.58/1.61	     avgArity=2.04  maxArity=100  nbGenerators=1  nbFusions=1  symmetryWckTime=0.252  symmetryCpuTime=0.16  nbCliques=1
1.58/1.61	       =>  wckTime=1.357  cpuTime=1.06  mem=43M214
1.68/1.73	   
1.68/1.73	   solver IterativeSystematicSolver being built... 
1.78/1.80	   
1.78/1.81	   INFO : Forward propagation technique limited 
1.78/1.87	       =>  wckTime=1.619  cpuTime=1.18  mem=25M30
1.78/1.87	   
1.78/1.87	   preprocessing
1.78/1.87	     nbConstraintChecks=100  nbPropagations=1  nbRevisions=2  nbUselessRevisions=0  nbRemovedValues=2
1.78/1.87	     nbRemovedTuples=1224  detectedInconsistency=yes
1.78/1.87	       =>  wckTime=0.0030  cpuTime=0.0  mem=25M30
1.78/1.88	   
1.78/1.88	   global
1.78/1.88	     nbConstraintChecks=100  nbPropagations=1  nbRevisions=2  nbUselessRevisions=0  nbRestartNogoods=0
1.78/1.88	     solvingWckTime=0.0060  solvingCpuTime=0.0  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
1.78/1.88	     globalCpuTime=1.23
1.78/1.88	       =>  wckTime=1.626  cpuTime=1.18  mem=25M980
1.78/1.88	   
1.78/1.88	s UNSATISFIABLE
1.78/1.88	d NODES 0
1.78/1.88	d CHECKS 100
1.78/1.88	   
1.78/1.88	   totalWckTime=1.696  totalCpuTime=1.24

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2097562-1247413538/watcher-2097562-1247413538 -o /tmp/evaluation-result-2097562-1247413538/solver-2097562-1247413538 -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-2097562-1247413538.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: 2.00 2.00 2.00 4/80 32626
/proc/meminfo: memFree=1675864/2055920 swapFree=4192812/4192956
[pid=32626] ppid=32624 vsize=152 CPUtime=0
/proc/32626/stat : 32626 (java) R 32624 32626 31096 0 -1 0 205 0 0 0 0 0 0 0 18 0 1 0 28420217 155648 26 996147200 134512640 134550932 4294955968 18446744073709551615 1462571 0 0 4096 0 0 0 0 17 0 0 0
/proc/32626/statm: 38 26 19 9 0 4 0

[startup+0.0444601 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 32626
/proc/meminfo: memFree=1675864/2055920 swapFree=4192812/4192956
[pid=32626] ppid=32624 vsize=861936 CPUtime=0.03
/proc/32626/stat : 32626 (java) S 32624 32626 31096 0 -1 0 2365 0 1 0 2 1 0 0 18 0 5 0 28420217 882622464 1948 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800971 18446744073709551615 0 0 17 0 0 0
/proc/32626/statm: 215484 1948 894 9 0 210399 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 861936

[startup+0.102463 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 32626
/proc/meminfo: memFree=1675864/2055920 swapFree=4192812/4192956
[pid=32626] ppid=32624 vsize=865980 CPUtime=0.08
/proc/32626/stat : 32626 (java) S 32624 32626 31096 0 -1 0 3738 0 1 0 7 1 0 0 18 0 9 0 28420217 886763520 3206 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/32626/statm: 216495 3206 1700 9 0 210980 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 865980

[startup+0.301484 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 32626
/proc/meminfo: memFree=1675864/2055920 swapFree=4192812/4192956
[pid=32626] ppid=32624 vsize=866380 CPUtime=0.28
/proc/32626/stat : 32626 (java) S 32624 32626 31096 0 -1 0 5951 0 1 0 25 3 0 0 18 0 9 0 28420217 887173120 5317 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/32626/statm: 216595 5317 1983 9 0 211053 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 866380

[startup+0.701527 s]
/proc/loadavg: 2.00 2.00 2.00 4/80 32626
/proc/meminfo: memFree=1675864/2055920 swapFree=4192812/4192956
[pid=32626] ppid=32624 vsize=867772 CPUtime=0.68
/proc/32626/stat : 32626 (java) S 32624 32626 31096 0 -1 0 9244 0 1 0 63 5 0 0 18 0 9 0 28420217 888598528 8598 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/32626/statm: 216943 8599 2037 9 0 211379 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 867772

[startup+1.50267 s]
/proc/loadavg: 2.00 2.00 2.00 3/89 32635
/proc/meminfo: memFree=1641040/2055920 swapFree=4192812/4192956
[pid=32626] ppid=32624 vsize=868096 CPUtime=1.48
/proc/32626/stat : 32626 (java) S 32624 32626 31096 0 -1 0 15122 394 1 0 120 22 5 1 18 0 10 0 28420217 888930304 14320 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/32626/statm: 217024 14320 2045 9 0 211460 0
[pid=32626/tid=32628] ppid=32624 vsize=868096 CPUtime=1.22
/proc/32626/task/32628/stat : 32628 (java) S 32624 32626 31096 0 -1 64 13605 394 1 0 96 20 5 1 17 0 10 0 28420218 888930304 14320 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=32626/tid=32629] ppid=32624 vsize=868096 CPUtime=0.06
/proc/32626/task/32629/stat : 32629 (java) S 32624 32626 31096 0 -1 64 3 394 0 0 0 0 5 1 16 0 10 0 28420219 888930304 14320 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 0 0 0
[pid=32626/tid=32630] ppid=32624 vsize=868096 CPUtime=0.06
/proc/32626/task/32630/stat : 32630 (java) S 32624 32626 31096 0 -1 64 11 394 0 0 0 0 5 1 21 0 10 0 28420220 888930304 14320 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=32626/tid=32631] ppid=32624 vsize=868096 CPUtime=0.06
/proc/32626/task/32631/stat : 32631 (java) S 32624 32626 31096 0 -1 64 3 394 0 0 0 0 5 1 22 0 10 0 28420220 888930304 14320 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=32626/tid=32632] ppid=32624 vsize=868096 CPUtime=0.06
/proc/32626/task/32632/stat : 32632 (java) S 32624 32626 31096 0 -1 64 1 394 0 0 0 0 5 1 23 0 10 0 28420222 888930304 14320 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=32626/tid=32633] ppid=32624 vsize=868096 CPUtime=0.29
/proc/32626/task/32633/stat : 32633 (java) S 32624 32626 31096 0 -1 64 736 394 0 0 23 0 5 1 15 0 10 0 28420222 888930304 14320 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=32626/tid=32634] ppid=32624 vsize=868096 CPUtime=0.06
/proc/32626/task/32634/stat : 32634 (java) S 32624 32626 31096 0 -1 64 1 394 0 0 0 0 5 1 24 0 10 0 28420222 888930304 14320 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=32626/tid=32635] ppid=32624 vsize=868096 CPUtime=0.06
/proc/32626/task/32635/stat : 32635 (java) S 32624 32626 31096 0 -1 64 8 394 0 0 0 0 5 1 15 0 10 0 28420222 888930304 14320 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 868096

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

[startup+1.90265 s]
/proc/loadavg: 2.00 2.00 2.00 3/89 32635
/proc/meminfo: memFree=1641040/2055920 swapFree=4192812/4192956
[pid=32626] ppid=32624 vsize=868208 CPUtime=1.86
/proc/32626/stat : 32626 (java) S 32624 32626 31096 0 -1 0 27540 517 1 0 155 25 5 1 18 0 9 0 28420217 889044992 16903 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 0 0 0
/proc/32626/statm: 217052 16903 2658 9 0 211488 0
[pid=32626/tid=32628] ppid=32624 vsize=868208 CPUtime=1.44
/proc/32626/task/32628/stat : 32628 (java) S 32624 32626 31096 0 -1 64 19834 517 1 0 117 21 5 1 17 0 9 0 28420218 889044992 16903 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=32626/tid=32629] ppid=32624 vsize=868208 CPUtime=0.17
/proc/32626/task/32629/stat : 32629 (java) S 32624 32626 31096 0 -1 64 5936 517 0 0 10 1 5 1 18 0 9 0 28420219 889044992 16903 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 1 0 0
[pid=32626/tid=32630] ppid=32624 vsize=868208 CPUtime=0.06
/proc/32626/task/32630/stat : 32630 (java) S 32624 32626 31096 0 -1 64 19 517 0 0 0 0 5 1 16 0 9 0 28420220 889044992 16903 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=32626/tid=32631] ppid=32624 vsize=868208 CPUtime=0.06
/proc/32626/task/32631/stat : 32631 (java) S 32624 32626 31096 0 -1 64 9 517 0 0 0 0 5 1 16 0 9 0 28420220 889044992 16903 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=32626/tid=32632] ppid=32624 vsize=868208 CPUtime=0.06
/proc/32626/task/32632/stat : 32632 (java) S 32624 32626 31096 0 -1 64 1 517 0 0 0 0 5 1 23 0 9 0 28420222 889044992 16903 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=32626/tid=32633] ppid=32624 vsize=868208 CPUtime=0.33
/proc/32626/task/32633/stat : 32633 (java) S 32624 32626 31096 0 -1 64 924 517 0 0 26 1 5 1 15 0 9 0 28420222 889044992 16903 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=32626/tid=32634] ppid=32624 vsize=868208 CPUtime=0.06
/proc/32626/task/32634/stat : 32634 (java) S 32624 32626 31096 0 -1 64 1 517 0 0 0 0 5 1 24 0 9 0 28420222 889044992 16903 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=32626/tid=32635] ppid=32624 vsize=868208 CPUtime=0.06
/proc/32626/task/32635/stat : 32635 (java) S 32624 32626 31096 0 -1 64 15 517 0 0 0 0 5 1 15 0 9 0 28420222 889044992 16903 996147200 134512640 134550932 4294955968 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 1.86
Current children cumulated vsize (KiB) 868208

Child status: 0
Real time (s): 1.93615
CPU time (s): 1.88671
CPU user time (s): 1.60276
CPU system time (s): 0.283956
CPU usage (%): 97.4464
Max. virtual memory (cumulated for all children) (KiB): 868244

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.60276
system time used= 0.283956
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 28086
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= 1348
involuntary context switches= 1334

runsolver used 0.006998 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node35 at 2009-07-12 17:45:38
IDJOB=2097562
IDBENCH=57521
IDSOLVER=774
FILE ID=node35/2097562-1247413538
PBS_JOBID= 9510573
Free space on /tmp= 66300 MiB

SOLVER NAME= Abscon 112v4 ESAC
BENCH NAME= CPAI08/csp/super-queens/normalized-super-queens-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-2097562-1247413538/watcher-2097562-1247413538 -o /tmp/evaluation-result-2097562-1247413538/solver-2097562-1247413538 -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-2097562-1247413538.xml

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

MD5SUM BENCH= 12cac64112c90184707842af1dca4fb5
RANDOM SEED=905317907

node35.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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1676344 kB
Buffers:         39348 kB
Cached:         131944 kB
SwapCached:          0 kB
Active:         248364 kB
Inactive:        77168 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1676344 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2452 kB
Writeback:           0 kB
Mapped:         174676 kB
Slab:            39080 kB
Committed_AS:  1034532 kB
PageTables:       2080 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= 66296 MiB
End job on node35 at 2009-07-12 17:45:40