Trace number 200293

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, and are wall clock time (not CPU 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 109 ESACUNSAT 1.9547 2.0286

DiagnosticValue
CHECKS9716849
NODES0

General information on the benchmark

NamequeensKnights/
queensKnights-25-5-mul.xml
MD5SUM42327fd25269bd930b82a3618da7d3e1
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 benchmark1.9547
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables30
Number of constraints435
Maximum constraint arity2
Maximum domain size625
Number of constraints which are defined in extension0
Number of constraints which are defined in intension435
Global constraints used (with number of constraints)

Solver Data (download as text)

0.32	   
0.32	Abscon 109 (November, 2006)
0.32	   
0.32	   configuration
0.32	     name=esac.xml
0.35	   
0.35	   instance
0.35	     name=/tmp/evaluation/200293-1168142064/unknown.xml
0.38	   
0.38	   domains being loaded...
0.38	   
0.38	   variables being loaded...
0.42	     nbVariables=30  nbDomainTypes=2  minDomainSize=25  maxDomainSize=625
0.42	       =>  wckTime=0.097  cpuTime=0.07  mem=6M951
0.42	   
0.42	   predicates being loaded...
0.42	   
0.42	   constraints being loaded...
1.28	     nbConstraints=435  nbConvertedConstraints=435  nbConvertConstraintsChecks=1186875  nbExtensionStructures=51
1.28	     nbSharedExtensionStructures=384  nbConflictsStructures=51  nbSharedConflictsStructures=384
1.28	     nbSharedBinaryRepresentations=18322  maxDegree=29  maxArity=2
1.28	       =>  wckTime=0.961  cpuTime=0.86  mem=12M803
1.32	   
1.32	   solver IterativeSystematicSolver being built... 
1.47	       =>  wckTime=1.154  cpuTime=0.99  mem=13M878
1.98	   
1.98	   preprocessing
1.98	     nbConstraintChecks=9716849  nbPropagations=6808  nbRevisions=26450  nbUselessRevisions=18196  nbSingletonTests=678
1.98	     nbEffectiveSingletonTests=624  nbESACBranches=4  nbRemovedValues=3112  detectedInconsistency=yes
1.98	       =>  wckTime=0.499  cpuTime=0.47  mem=14M853
1.98	   
1.98	   global
1.98	     nbConstraintChecks=9716849  nbPropagations=6808  nbRevisions=26450  nbUselessRevisions=18196  nbRestartNogoods=0
1.98	     solvingWckTime=0.501  solvingCpuTime=0.47  expiredTime=no  totalExploration=yes  nbFoundSolutions=0
1.98	     globalCpuTime=1.53
1.98	       =>  wckTime=1.658  cpuTime=1.47  mem=14M853
1.98	   
1.98	s UNSATISFIABLE
1.98	d NODES 0
1.98	d CHECKS 9716849
1.98	   
1.98	   totalWckTime=1.735  totalCpuTime=1.53

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node56/watcher-200293-1168142064 -o ROOT/results/node56/solver-200293-1168142064 -C 1800 -M 900 java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/200293-1168142064/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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

/proc/loadavg: 1.14 1.03 1.01 3/68 28395
/proc/meminfo: memFree=1683936/2055920 swapFree=4184772/4192956
[pid=28394] ppid=28390 vsize=1784 CPUtime=0
/proc/28394/stat : 28394 (java) D 28390 28394 28287 0 -1 0 169 0 0 0 0 0 0 0 18 0 1 0 162604679 1826816 140 18446744073709551615 134512640 134570532 4294956624 18446744073709551615 4294960144 0 2147483391 4096 0 18446744072099781622 0 0 17 1 0 0
/proc/28394/statm: 446 140 106 14 0 91 0

[startup+0.106431 s]
/proc/loadavg: 1.14 1.03 1.01 3/68 28395
/proc/meminfo: memFree=1683936/2055920 swapFree=4184772/4192956
[pid=28394] ppid=28390 vsize=912760 CPUtime=0.07
/proc/28394/stat : 28394 (java) R 28390 28394 28287 0 -1 0 2780 0 1 0 6 1 0 0 23 0 8 0 162604679 934666240 2526 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/28394/statm: 228190 2526 1387 14 0 215091 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 912760

[startup+0.514475 s]
/proc/loadavg: 1.14 1.03 1.01 3/68 28395
/proc/meminfo: memFree=1683936/2055920 swapFree=4184772/4192956
[pid=28394] ppid=28390 vsize=915328 CPUtime=0.46
/proc/28394/stat : 28394 (java) R 28390 28394 28287 0 -1 0 6639 0 1 0 43 3 0 0 16 0 8 0 162604679 937295872 6378 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4072942731 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/28394/statm: 228832 6378 2145 14 0 215302 0
Current children cumulated CPU time (s) 0.46
Current children cumulated vsize (KiB) 915328

[startup+1.33655 s]
/proc/loadavg: 1.14 1.03 1.01 2/75 28402
/proc/meminfo: memFree=1664424/2055920 swapFree=4184772/4192956
[pid=28394] ppid=28390 vsize=915560 CPUtime=1.29
/proc/28394/stat : 28394 (java) R 28390 28394 28287 0 -1 0 8043 0 1 0 123 6 0 0 16 0 8 0 162604679 937533440 7780 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4155582796 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/28394/statm: 228890 7780 2391 14 0 215360 0
[pid=28394/tid=28396] ppid=28390 vsize=915560 CPUtime=0.03
/proc/28394/task/28396/stat : 28396 (java) S 28390 28394 28287 0 -1 64 263 0 0 0 3 0 0 0 16 0 8 0 162604684 937533440 7780 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 0 0 23759 0 0 0 -1 1 0 0
[pid=28394/tid=28397] ppid=28390 vsize=915560 CPUtime=0
/proc/28394/task/28397/stat : 28397 (java) S 28390 28394 28287 0 -1 64 11 0 0 0 0 0 0 0 16 0 8 0 162604685 937533440 7780 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=28394/tid=28398] ppid=28390 vsize=915560 CPUtime=0
/proc/28394/task/28398/stat : 28398 (java) S 28390 28394 28287 0 -1 64 5 0 0 0 0 0 0 0 16 0 8 0 162604685 937533440 7780 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=28394/tid=28399] ppid=28390 vsize=915560 CPUtime=0
/proc/28394/task/28399/stat : 28399 (java) S 28390 28394 28287 0 -1 64 0 0 0 0 0 0 0 0 21 0 8 0 162604688 937533440 7780 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=28394/tid=28400] ppid=28390 vsize=915560 CPUtime=0.12
/proc/28394/task/28400/stat : 28400 (java) S 28390 28394 28287 0 -1 64 348 0 0 0 12 0 0 0 16 0 8 0 162604688 937533440 7780 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=28394/tid=28401] ppid=28390 vsize=915560 CPUtime=0
/proc/28394/task/28401/stat : 28401 (java) S 28390 28394 28287 0 -1 64 1 0 0 0 0 0 0 0 22 0 8 0 162604688 937533440 7780 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=28394/tid=28402] ppid=28390 vsize=915560 CPUtime=0
/proc/28394/task/28402/stat : 28402 (java) S 28390 28394 28287 0 -1 64 1 0 0 0 0 0 0 0 15 0 8 0 162604688 937533440 7780 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 915560

Child status: 0
Real time (s): 2.0286
CPU time (s): 1.9547
CPU user time (s): 1.85072
CPU system time (s): 0.103984
CPU usage (%): 96.3572
Max. virtual memory (cumulated for all children) (KiB): 915564

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.85072
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= 8618
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= 818
involuntary context switches= 197

runsolver used 0.003999 s user time and 0.009998 s system time

The end

Launcher Data (download as text)

Begin job on node56 on Sun Jan  7 03:54:25 UTC 2007


IDJOB= 200293
IDBENCH= 3700
FILE ID= node56/200293-1168142064

PBS_JOBID= 3478093

Free space on /tmp= 66552 MiB

BENCH NAME= HOME/pub/bench/CPAI06/queensKnights/queensKnights-25-5-mul.xml
COMMAND LINE= java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/200293-1168142064/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node56/watcher-200293-1168142064 -o ROOT/results/node56/solver-200293-1168142064 -C 1800 -M 900  java -Xms756M -Xmx756M -XX:PermSize=10m -XX:MaxPermSize=10m -jar abscon109.jar esac.xml 1 XSax /tmp/evaluation/200293-1168142064/unknown.xml

META MD5SUM SOLVER= 9b91398c18c9fe54a6c4cfb50dadce08
MD5SUM BENCH=  42327fd25269bd930b82a3618da7d3e1

RANDOM SEED= 135879863

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.232
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		: 3000.232
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:       1684280 kB
Buffers:         25560 kB
Cached:         261268 kB
SwapCached:       2104 kB
Active:         115484 kB
Inactive:       185408 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1684280 kB
SwapTotal:     4192956 kB
SwapFree:      4184772 kB
Dirty:            5416 kB
Writeback:           0 kB
Mapped:          20984 kB
Slab:            56272 kB
Committed_AS:  3030364 kB
PageTables:       1776 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= 66552 MiB



End job on node56 on Sun Jan  7 03:54:28 UTC 2007