Trace number 2082376

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 1.20282 1.14343

DiagnosticValue
CHECKS6215
NODES0

General information on the benchmark

Namecsp/langford2/
normalized-langford-2-5.xml
MD5SUM42a251b4e5e78e8baab98daca83f50dd
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 benchmark0.006998
Satisfiable
(Un)Satisfiability was proved
Number of variables10
Number of constraints50
Maximum constraint arity2
Maximum domain size10
Number of constraints which are defined in extension0
Number of constraints which are defined in intension50
Global constraints used (with number of constraints)

Solver Data 

1.07/1.02	c CPU-LOAD 0.48
1.07/1.02	c LOADED 10 V (10 E), 45 ExtensionConstraint2D, arity 2, 0.48 cpu
1.17/1.11	s UNSATISFIABLE
1.17/1.11	d NODES 0
1.17/1.11	d CHECKS 6215
1.17/1.11	c CDC-added-constraints: 0
1.17/1.11	c CDC-nbsingletontests: 34
1.17/1.11	c CDC-nogoods: 400
1.17/1.11	c prepro-constraint-ccks: 0
1.17/1.11	c prepro-constraint-presenceccks: 0
1.17/1.11	c prepro-cpu: 0.020000001
1.17/1.11	c prepro-matrix2d-ccks: 6215
1.17/1.11	c prepro-matrix2d-presenceccks: 0
1.17/1.11	c prepro-removed: 70
1.17/1.11	c total-assgn: 0
1.17/1.11	c total-constraint-ccks: 0
1.17/1.11	c total-constraint-presence-ccks: 0
1.17/1.11	c total-cpu: 0.05
1.17/1.11	c total-matrix2d-ccks: 6215
1.17/1.11	c total-matrix2d-presence-ccks: 0
1.17/1.11	c TOTAL-NODES 0
1.17/1.11	c TOTAL-CPU 0.05

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-2082376-1247720996/watcher-2082376-1247720996 -o /tmp/evaluation-result-2082376-1247720996/solver-2082376-1247720996 -C 1800 -W 2000 -M 900 HOME/concrete.sh -c -p cspfj.filter.DC2 -parameter cdc.addConstraints=BIN HOME/instance-2082376-1247720996.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 2.02 2.00 4/72 19961
/proc/meminfo: memFree=1160388/2055920 swapFree=4192812/4192956
[pid=19961] ppid=19959 vsize=5356 CPUtime=0
/proc/19961/stat : 19961 (concrete.sh) S 19959 19961 17142 0 -1 4194304 271 0 0 0 0 0 0 0 18 0 1 0 59164306 5484544 230 996147200 4194304 4889804 548682068736 18446744073709551615 256365002834 0 0 4100 65536 18446744071563648864 0 0 17 0 0 0
/proc/19961/statm: 1339 230 191 169 0 50 0
[pid=19962] ppid=19961 vsize=5356 CPUtime=0
/proc/19962/stat : 19962 (concrete.sh) R 19961 19961 17142 0 -1 4194368 20 0 0 0 0 0 0 0 19 0 1 0 59164306 5484544 232 996147200 4194304 4889804 548682068736 18446744073709551615 4323611 0 0 4096 65538 0 0 0 17 0 0 0
/proc/19962/statm: 1339 232 193 169 0 50 0

[startup+0.0100139 s]
/proc/loadavg: 2.02 2.02 2.00 4/72 19961
/proc/meminfo: memFree=1160388/2055920 swapFree=4192812/4192956
[pid=19961] ppid=19959 vsize=5356 CPUtime=0
/proc/19961/stat : 19961 (concrete.sh) S 19959 19961 17142 0 -1 4194304 341 294 0 0 0 0 0 0 18 0 1 0 59164306 5484544 244 996147200 4194304 4889804 548682068736 18446744073709551615 256364831556 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/19961/statm: 1339 244 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.101746 s]
/proc/loadavg: 2.02 2.02 2.00 4/72 19961
/proc/meminfo: memFree=1160388/2055920 swapFree=4192812/4192956
[pid=19961] ppid=19959 vsize=5356 CPUtime=0
/proc/19961/stat : 19961 (concrete.sh) S 19959 19961 17142 0 -1 4194304 341 294 0 0 0 0 0 0 18 0 1 0 59164306 5484544 244 996147200 4194304 4889804 548682068736 18446744073709551615 256364831556 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/19961/statm: 1339 244 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.302777 s]
/proc/loadavg: 2.02 2.02 2.00 4/72 19961
/proc/meminfo: memFree=1160388/2055920 swapFree=4192812/4192956
[pid=19961] ppid=19959 vsize=5356 CPUtime=0
/proc/19961/stat : 19961 (concrete.sh) S 19959 19961 17142 0 -1 4194304 341 294 0 0 0 0 0 0 18 0 1 0 59164306 5484544 244 996147200 4194304 4889804 548682068736 18446744073709551615 256364831556 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/19961/statm: 1339 244 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.70181 s]
/proc/loadavg: 2.02 2.02 2.00 4/72 19961
/proc/meminfo: memFree=1160388/2055920 swapFree=4192812/4192956
[pid=19961] ppid=19959 vsize=5356 CPUtime=0
/proc/19961/stat : 19961 (concrete.sh) S 19959 19961 17142 0 -1 4194304 341 294 0 0 0 0 0 0 18 0 1 0 59164306 5484544 244 996147200 4194304 4889804 548682068736 18446744073709551615 256364831556 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/19961/statm: 1339 244 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

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

[startup+1.10685 s]
/proc/loadavg: 2.02 2.02 2.00 3/83 19975
/proc/meminfo: memFree=1143340/2055920 swapFree=4192812/4192956
[pid=19961] ppid=19959 vsize=5356 CPUtime=0
/proc/19961/stat : 19961 (concrete.sh) S 19959 19961 17142 0 -1 4194304 341 294 0 0 0 0 0 0 18 0 1 0 59164306 5484544 244 996147200 4194304 4889804 548682068736 18446744073709551615 256364831556 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/19961/statm: 1339 244 201 169 0 50 0
[pid=19966] ppid=19961 vsize=849128 CPUtime=1.17
/proc/19966/stat : 19966 (java) S 19961 19961 17142 0 -1 0 7723 0 1 0 111 6 0 0 21 0 10 0 59164307 869507072 6555 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 0 0 25189583 18446744073709551615 0 0 17 1 0 0
/proc/19966/statm: 212282 6555 2629 9 0 206760 0
[pid=19966/tid=19967] ppid=19961 vsize=849128 CPUtime=0.78
/proc/19966/task/19967/stat : 19967 (java) R 19961 19961 17142 0 -1 64 4201 0 1 0 75 3 0 0 21 0 10 0 59164308 869507072 6555 996147200 134512640 134550932 4294955344 18446744073709551615 4126627281 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=19966/tid=19968] ppid=19961 vsize=849128 CPUtime=0.07
/proc/19966/task/19968/stat : 19968 (java) S 19961 19961 17142 0 -1 64 1353 0 0 0 7 0 0 0 16 0 10 0 59164309 869507072 6555 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 0 0 25189583 0 0 0 -1 1 0 0
[pid=19966/tid=19969] ppid=19961 vsize=849128 CPUtime=0
/proc/19966/task/19969/stat : 19969 (java) S 19961 19961 17142 0 -1 64 13 0 0 0 0 0 0 0 16 0 10 0 59164309 869507072 6555 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=19966/tid=19970] ppid=19961 vsize=849128 CPUtime=0
/proc/19966/task/19970/stat : 19970 (java) S 19961 19961 17142 0 -1 64 4 0 0 0 0 0 0 0 15 0 10 0 59164309 869507072 6555 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=19966/tid=19971] ppid=19961 vsize=849128 CPUtime=0
/proc/19966/task/19971/stat : 19971 (java) S 19961 19961 17142 0 -1 64 1 0 0 0 0 0 0 0 18 0 10 0 59164311 869507072 6555 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=19966/tid=19972] ppid=19961 vsize=849128 CPUtime=0.28
/proc/19966/task/19972/stat : 19972 (java) S 19961 19961 17142 0 -1 64 1468 0 0 0 28 0 0 0 16 0 10 0 59164315 869507072 6555 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=19966/tid=19973] ppid=19961 vsize=849128 CPUtime=0
/proc/19966/task/19973/stat : 19973 (java) S 19961 19961 17142 0 -1 64 0 0 0 0 0 0 0 0 20 0 10 0 59164315 869507072 6555 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=19966/tid=19974] ppid=19961 vsize=849128 CPUtime=0
/proc/19966/task/19974/stat : 19974 (java) S 19961 19961 17142 0 -1 64 0 0 0 0 0 0 0 0 15 0 10 0 59164315 869507072 6555 996147200 134512640 134550932 4294955344 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.17
Current children cumulated vsize (KiB) 854484

Child status: 0
Real time (s): 1.14343
CPU time (s): 1.20282
CPU user time (s): 1.12983
CPU system time (s): 0.072988
CPU usage (%): 105.194
Max. virtual memory (cumulated for all children) (KiB): 854484

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.12983
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= 8378
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= 989
involuntary context switches= 954

runsolver used 0.005999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node90 at 2009-07-16 07:09:56
IDJOB=2082376
IDBENCH=57579
IDSOLVER=736
FILE ID=node90/2082376-1247720996
PBS_JOBID= 9521331
Free space on /tmp= 66096 MiB

SOLVER NAME= Concrete DC 2009-06-10
BENCH NAME= CPAI08/csp/langford2/normalized-langford-2-5.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-2082376-1247720996/watcher-2082376-1247720996 -o /tmp/evaluation-result-2082376-1247720996/solver-2082376-1247720996 -C 1800 -W 2000 -M 900  HOME/concrete.sh -c -p cspfj.filter.DC2 -parameter cdc.addConstraints=BIN HOME/instance-2082376-1247720996.xml

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

MD5SUM BENCH= 42a251b4e5e78e8baab98daca83f50dd
RANDOM SEED=927142916

node90.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		: 3000.212
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		: 3000.212
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1160868 kB
Buffers:         95076 kB
Cached:         318772 kB
SwapCached:          0 kB
Active:         410572 kB
Inactive:       378936 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1160868 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1864 kB
Writeback:           0 kB
Mapped:         381016 kB
Slab:            90272 kB
Committed_AS:   978300 kB
PageTables:       2488 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= 66096 MiB
End job on node90 at 2009-07-16 07:09:58