Trace number 2080495

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
Concrete DC 2009-07-14UNSAT 1.68174 1.72315

DiagnosticValue
CHECKS833015
NODES0

General information on the benchmark

Namecsp/queensKnights/
normalized-queensKnights-15-5-add.xml
MD5SUMf79a29efc9f65a8d195d10c1647254fc
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 benchmark1.00785
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints115
Maximum constraint arity2
Maximum domain size225
Number of constraints which are defined in extension0
Number of constraints which are defined in intension115
Global constraints used (with number of constraints)

Solver Data 

1.38/1.43	c CPU-LOAD 0.67
1.38/1.43	c LOADED 20 V (225 E), 115 ExtensionConstraint2D, arity 2, 0.67 cpu
1.58/1.68	s UNSATISFIABLE
1.58/1.68	d NODES 0
1.58/1.68	d CHECKS 833015
1.58/1.68	c CDC-added-constraints: 0
1.58/1.68	c CDC-nbsingletontests: 450
1.58/1.68	c CDC-nogoods: 0
1.58/1.68	c prepro-constraint-ccks: 0
1.58/1.68	c prepro-constraint-presenceccks: 0
1.58/1.68	c prepro-cpu: 0.14000002
1.58/1.68	c prepro-matrix2d-ccks: 833015
1.58/1.68	c prepro-matrix2d-presenceccks: 310036
1.58/1.68	c prepro-removed: 225
1.58/1.68	c total-assgn: 0
1.58/1.68	c total-constraint-ccks: 0
1.58/1.68	c total-constraint-presence-ccks: 0
1.58/1.68	c total-cpu: 0.18
1.58/1.68	c total-matrix2d-ccks: 833015
1.58/1.68	c total-matrix2d-presence-ccks: 310036
1.58/1.68	c TOTAL-NODES 0
1.58/1.68	c TOTAL-CPU 0.18

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-2080495-1247717805/watcher-2080495-1247717805 -o /tmp/evaluation-result-2080495-1247717805/solver-2080495-1247717805 -C 1800 -W 2000 -M 900 HOME/concrete.sh -c -p cspfj.filter.DC2 -parameter cdc.addConstraints=BIN HOME/instance-2080495-1247717805.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: 2.31 2.16 2.07 4/81 16815
/proc/meminfo: memFree=496672/2055920 swapFree=4192812/4192956
[pid=16815] ppid=16813 vsize=18576 CPUtime=0
/proc/16815/stat : 16815 (runsolver) R 16813 16815 14580 0 -1 4194368 15 0 0 0 0 0 0 0 22 0 1 0 58847995 19021824 284 996147200 4194304 4302564 548682068432 18446744073709551615 226913479975 0 0 4096 24578 0 0 0 17 1 0 0
/proc/16815/statm: 4644 284 249 26 0 2626 0

[startup+0.0939051 s]
/proc/loadavg: 2.31 2.16 2.07 4/81 16815
/proc/meminfo: memFree=496672/2055920 swapFree=4192812/4192956
[pid=16815] ppid=16813 vsize=5356 CPUtime=0
/proc/16815/stat : 16815 (concrete.sh) S 16813 16815 14580 0 -1 4194304 341 294 0 0 0 0 0 0 23 0 1 0 58847995 5484544 244 996147200 4194304 4889804 548682068736 18446744073709551615 226913477444 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/16815/statm: 1339 244 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.101907 s]
/proc/loadavg: 2.31 2.16 2.07 4/81 16815
/proc/meminfo: memFree=496672/2055920 swapFree=4192812/4192956
[pid=16815] ppid=16813 vsize=5356 CPUtime=0
/proc/16815/stat : 16815 (concrete.sh) S 16813 16815 14580 0 -1 4194304 341 294 0 0 0 0 0 0 23 0 1 0 58847995 5484544 244 996147200 4194304 4889804 548682068736 18446744073709551615 226913477444 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/16815/statm: 1339 244 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.301949 s]
/proc/loadavg: 2.31 2.16 2.07 4/81 16815
/proc/meminfo: memFree=496672/2055920 swapFree=4192812/4192956
[pid=16815] ppid=16813 vsize=5356 CPUtime=0
/proc/16815/stat : 16815 (concrete.sh) S 16813 16815 14580 0 -1 4194304 341 294 0 0 0 0 0 0 23 0 1 0 58847995 5484544 244 996147200 4194304 4889804 548682068736 18446744073709551615 226913477444 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/16815/statm: 1339 244 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.702022 s]
/proc/loadavg: 2.31 2.16 2.07 4/81 16815
/proc/meminfo: memFree=496672/2055920 swapFree=4192812/4192956
[pid=16815] ppid=16813 vsize=5356 CPUtime=0
/proc/16815/stat : 16815 (concrete.sh) S 16813 16815 14580 0 -1 4194304 341 294 0 0 0 0 0 0 23 0 1 0 58847995 5484544 244 996147200 4194304 4889804 548682068736 18446744073709551615 226913477444 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/16815/statm: 1339 244 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+1.50217 s]
/proc/loadavg: 2.31 2.16 2.07 3/92 16829
/proc/meminfo: memFree=482184/2055920 swapFree=4192812/4192956
[pid=16815] ppid=16813 vsize=5356 CPUtime=0
/proc/16815/stat : 16815 (concrete.sh) S 16813 16815 14580 0 -1 4194304 341 294 0 0 0 0 0 0 23 0 1 0 58847995 5484544 244 996147200 4194304 4889804 548682068736 18446744073709551615 226913477444 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/16815/statm: 1339 244 201 169 0 50 0
[pid=16820] ppid=16815 vsize=849744 CPUtime=1.48
/proc/16820/stat : 16820 (java) S 16815 16815 14580 0 -1 0 7719 0 1 0 142 6 0 0 18 0 10 0 58847996 870137856 6742 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 0 0 25189583 18446744073709551615 0 0 17 1 0 0
/proc/16820/statm: 212436 6742 2632 9 0 206914 0
[pid=16820/tid=16821] ppid=16815 vsize=849744 CPUtime=0.94
/proc/16820/task/16821/stat : 16821 (java) R 16815 16815 14580 0 -1 64 4135 0 1 0 90 4 0 0 23 0 10 0 58847997 870137856 6742 996147200 134512640 134550932 4294955344 18446744073709551615 103842098 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=16820/tid=16822] ppid=16815 vsize=849744 CPUtime=0.1
/proc/16820/task/16822/stat : 16822 (java) S 16815 16815 14580 0 -1 64 1420 0 0 0 10 0 0 0 16 0 10 0 58847998 870137856 6742 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 0 0 25189583 0 0 0 -1 1 0 0
[pid=16820/tid=16823] ppid=16815 vsize=849744 CPUtime=0
/proc/16820/task/16823/stat : 16823 (java) S 16815 16815 14580 0 -1 64 13 0 0 0 0 0 0 0 16 0 10 0 58847998 870137856 6742 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=16820/tid=16824] ppid=16815 vsize=849744 CPUtime=0
/proc/16820/task/16824/stat : 16824 (java) S 16815 16815 14580 0 -1 64 4 0 0 0 0 0 0 0 15 0 10 0 58847998 870137856 6742 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=16820/tid=16825] ppid=16815 vsize=849744 CPUtime=0
/proc/16820/task/16825/stat : 16825 (java) S 16815 16815 14580 0 -1 64 1 0 0 0 0 0 0 0 18 0 10 0 58848001 870137856 6742 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=16820/tid=16826] ppid=16815 vsize=849744 CPUtime=0.41
/proc/16820/task/16826/stat : 16826 (java) S 16815 16815 14580 0 -1 64 1463 0 0 0 41 0 0 0 16 0 10 0 58848004 870137856 6742 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=16820/tid=16827] ppid=16815 vsize=849744 CPUtime=0
/proc/16820/task/16827/stat : 16827 (java) S 16815 16815 14580 0 -1 64 0 0 0 0 0 0 0 0 20 0 10 0 58848004 870137856 6742 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=16820/tid=16828] ppid=16815 vsize=849744 CPUtime=0
/proc/16820/task/16828/stat : 16828 (java) S 16815 16815 14580 0 -1 64 0 0 0 0 0 0 0 0 15 0 10 0 58848004 870137856 6742 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 855100

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

[startup+1.70221 s]
/proc/loadavg: 2.31 2.16 2.07 3/92 16829
/proc/meminfo: memFree=482184/2055920 swapFree=4192812/4192956
[pid=16815] ppid=16813 vsize=5356 CPUtime=0
/proc/16815/stat : 16815 (concrete.sh) S 16813 16815 14580 0 -1 4194304 341 294 0 0 0 0 0 0 23 0 1 0 58847995 5484544 244 996147200 4194304 4889804 548682068736 18446744073709551615 226913477444 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/16815/statm: 1339 244 201 169 0 50 0
[pid=16820] ppid=16815 vsize=849744 CPUtime=1.66
/proc/16820/stat : 16820 (java) S 16815 16815 14580 0 -1 0 7749 0 1 0 160 6 0 0 18 0 9 0 58847996 870137856 6769 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 0 0 25189583 18446744073709551615 0 0 17 1 0 0
/proc/16820/statm: 212436 6769 2632 9 0 206914 0
[pid=16820/tid=16821] ppid=16815 vsize=849744 CPUtime=1.07
/proc/16820/task/16821/stat : 16821 (java) S 16815 16815 14580 0 -1 64 4143 0 1 0 103 4 0 0 24 0 9 0 58847997 870137856 6769 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=16820/tid=16822] ppid=16815 vsize=849744 CPUtime=0.1
/proc/16820/task/16822/stat : 16822 (java) S 16815 16815 14580 0 -1 64 1420 0 0 0 10 0 0 0 16 0 9 0 58847998 870137856 6769 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 0 0 25189583 0 0 0 -1 1 0 0
[pid=16820/tid=16823] ppid=16815 vsize=849744 CPUtime=0
/proc/16820/task/16823/stat : 16823 (java) S 16815 16815 14580 0 -1 64 13 0 0 0 0 0 0 0 16 0 9 0 58847998 870137856 6769 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=16820/tid=16824] ppid=16815 vsize=849744 CPUtime=0
/proc/16820/task/16824/stat : 16824 (java) S 16815 16815 14580 0 -1 64 4 0 0 0 0 0 0 0 15 0 9 0 58847998 870137856 6769 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=16820/tid=16825] ppid=16815 vsize=849744 CPUtime=0
/proc/16820/task/16825/stat : 16825 (java) S 16815 16815 14580 0 -1 64 1 0 0 0 0 0 0 0 18 0 9 0 58848001 870137856 6769 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=16820/tid=16826] ppid=16815 vsize=849744 CPUtime=0.45
/proc/16820/task/16826/stat : 16826 (java) S 16815 16815 14580 0 -1 64 1485 0 0 0 45 0 0 0 15 0 9 0 58848004 870137856 6769 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=16820/tid=16827] ppid=16815 vsize=849744 CPUtime=0
/proc/16820/task/16827/stat : 16827 (java) S 16815 16815 14580 0 -1 64 0 0 0 0 0 0 0 0 20 0 9 0 58848004 870137856 6769 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=16820/tid=16828] ppid=16815 vsize=849744 CPUtime=0
/proc/16820/task/16828/stat : 16828 (java) S 16815 16815 14580 0 -1 64 0 0 0 0 0 0 0 0 15 0 9 0 58848004 870137856 6769 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.66
Current children cumulated vsize (KiB) 855100

Child status: 0
Real time (s): 1.72315
CPU time (s): 1.68174
CPU user time (s): 1.60876
CPU system time (s): 0.072988
CPU usage (%): 97.5971
Max. virtual memory (cumulated for all children) (KiB): 855100

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.60875
system time used= 0.072988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8395
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= 1690
involuntary context switches= 1696

runsolver used 0.008998 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node5 at 2009-07-16 06:16:45
IDJOB=2080495
IDBENCH=57096
IDSOLVER=736
FILE ID=node5/2080495-1247717805
PBS_JOBID= 9521368
Free space on /tmp= 66316 MiB

SOLVER NAME= Concrete DC 2009-06-10
BENCH NAME= CPAI08/csp/queensKnights/normalized-queensKnights-15-5-add.xml
COMMAND LINE= HOME/concrete.sh -c -p cspfj.filter.DC2 -parameter cdc.addConstraints=BIN BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2080495-1247717805/watcher-2080495-1247717805 -o /tmp/evaluation-result-2080495-1247717805/solver-2080495-1247717805 -C 1800 -W 2000 -M 900  HOME/concrete.sh -c -p cspfj.filter.DC2 -parameter cdc.addConstraints=BIN HOME/instance-2080495-1247717805.xml

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

MD5SUM BENCH= f79a29efc9f65a8d195d10c1647254fc
RANDOM SEED=1500544744

node5.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		: 3000.258
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		: 3000.258
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:        497152 kB
Buffers:         89192 kB
Cached:         623312 kB
SwapCached:          0 kB
Active:         966364 kB
Inactive:       518204 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        497152 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1216 kB
Writeback:           0 kB
Mapped:         792516 kB
Slab:            57956 kB
Committed_AS:  1387028 kB
PageTables:       3312 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= 66312 MiB
End job on node5 at 2009-07-16 06:16:47