Trace number 2080505

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 2009-07-14UNSAT 1.47078 1.55278

DiagnosticValue
CHECKS617967
NODES858

General information on the benchmark

Namecsp/queensKnights/
normalized-queensKnights-10-5-add.xml
MD5SUM7f40f39ce18aac0954c703f625811a4a
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 benchmark0.822874
Satisfiable
(Un)Satisfiability was proved
Number of variables15
Number of constraints55
Maximum constraint arity2
Maximum domain size100
Number of constraints which are defined in extension0
Number of constraints which are defined in intension55
Global constraints used (with number of constraints)

Solver Data 

1.16/1.27	c CPU-LOAD 0.57
1.16/1.27	c LOADED 15 V (100 E), 55 ExtensionConstraint2D, arity 2, 0.57 cpu
1.36/1.49	s UNSATISFIABLE
1.36/1.49	d NODES 858
1.36/1.49	d CHECKS 617967
1.36/1.49	c heuristic-cpu: 0.0
1.36/1.49	c prepro-constraint-ccks: 0
1.36/1.49	c prepro-constraint-presenceccks: 0
1.36/1.49	c prepro-cpu: 0.010000002
1.36/1.49	c prepro-matrix2d-ccks: 0
1.36/1.49	c prepro-matrix2d-presenceccks: 0
1.36/1.49	c prepro-removed: 0
1.36/1.49	c search-cpu: 0.13000001
1.36/1.49	c search-nps: 6599.9995
1.36/1.49	c total-assgn: 858
1.36/1.49	c total-constraint-ccks: 0
1.36/1.49	c total-constraint-presence-ccks: 0
1.36/1.49	c total-cpu: 0.18
1.36/1.49	c total-matrix2d-ccks: 617967
1.36/1.49	c total-matrix2d-presence-ccks: 0
1.36/1.49	c TOTAL-NODES 858
1.36/1.49	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-2080505-1247717808/watcher-2080505-1247717808 -o /tmp/evaluation-result-2080505-1247717808/solver-2080505-1247717808 -C 1800 -W 2000 -M 900 HOME/concrete.sh -c HOME/instance-2080505-1247717808.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: 2.12 2.16 2.10 4/72 15970
/proc/meminfo: memFree=1378936/2055920 swapFree=4192812/4192956
[pid=15970] ppid=15968 vsize=5356 CPUtime=0
/proc/15970/stat : 15970 (concrete.sh) S 15968 15970 15132 0 -1 4194304 270 0 0 0 0 0 0 0 20 0 1 0 58843509 5484544 230 996147200 4194304 4889804 548682068816 18446744073709551615 237947813970 0 0 4100 65536 18446744071563648864 0 0 17 1 0 0
/proc/15970/statm: 1339 230 191 169 0 50 0
[pid=15971] ppid=15970 vsize=5356 CPUtime=0
/proc/15971/stat : 15971 (concrete.sh) R 15970 15970 15132 0 -1 4194368 1 0 0 0 0 0 0 0 21 0 1 0 58843510 5484544 230 996147200 4194304 4889804 548682068816 18446744073709551615 237947644575 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/15971/statm: 1339 230 191 169 0 50 0

[startup+0.063849 s]
/proc/loadavg: 2.12 2.16 2.10 4/72 15970
/proc/meminfo: memFree=1378936/2055920 swapFree=4192812/4192956
[pid=15970] ppid=15968 vsize=5356 CPUtime=0
/proc/15970/stat : 15970 (concrete.sh) S 15968 15970 15132 0 -1 4194304 341 291 0 0 0 0 0 0 18 0 1 0 58843509 5484544 244 996147200 4194304 4889804 548682068816 18446744073709551615 237947642692 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/15970/statm: 1339 244 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.102934 s]
/proc/loadavg: 2.12 2.16 2.10 4/72 15970
/proc/meminfo: memFree=1378936/2055920 swapFree=4192812/4192956
[pid=15970] ppid=15968 vsize=5356 CPUtime=0
/proc/15970/stat : 15970 (concrete.sh) S 15968 15970 15132 0 -1 4194304 341 291 0 0 0 0 0 0 18 0 1 0 58843509 5484544 244 996147200 4194304 4889804 548682068816 18446744073709551615 237947642692 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/15970/statm: 1339 244 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.301953 s]
/proc/loadavg: 2.12 2.16 2.10 4/72 15970
/proc/meminfo: memFree=1378936/2055920 swapFree=4192812/4192956
[pid=15970] ppid=15968 vsize=5356 CPUtime=0
/proc/15970/stat : 15970 (concrete.sh) S 15968 15970 15132 0 -1 4194304 341 291 0 0 0 0 0 0 18 0 1 0 58843509 5484544 244 996147200 4194304 4889804 548682068816 18446744073709551615 237947642692 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/15970/statm: 1339 244 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+0.702981 s]
/proc/loadavg: 2.12 2.16 2.10 4/72 15970
/proc/meminfo: memFree=1378936/2055920 swapFree=4192812/4192956
[pid=15970] ppid=15968 vsize=5356 CPUtime=0
/proc/15970/stat : 15970 (concrete.sh) S 15968 15970 15132 0 -1 4194304 341 291 0 0 0 0 0 0 18 0 1 0 58843509 5484544 244 996147200 4194304 4889804 548682068816 18446744073709551615 237947642692 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/15970/statm: 1339 244 201 169 0 50 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5356

[startup+1.50204 s]
/proc/loadavg: 2.12 2.16 2.10 3/83 15984
/proc/meminfo: memFree=1363552/2055920 swapFree=4192812/4192956
[pid=15970] ppid=15968 vsize=5356 CPUtime=0
/proc/15970/stat : 15970 (concrete.sh) S 15968 15970 15132 0 -1 4194304 341 291 0 0 0 0 0 0 18 0 1 0 58843509 5484544 244 996147200 4194304 4889804 548682068816 18446744073709551615 237947642692 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/15970/statm: 1339 244 201 169 0 50 0
[pid=15975] ppid=15970 vsize=848680 CPUtime=1.45
/proc/15975/stat : 15975 (java) S 15970 15970 15132 0 -1 0 7974 0 1 0 138 7 0 0 18 0 9 0 58843511 869048320 6776 996147200 134512640 134550932 4294955408 18446744073709551615 4294960144 0 0 0 25189583 18446744073709551615 0 0 17 1 0 0
/proc/15975/statm: 212170 6776 2631 9 0 206648 0
[pid=15975/tid=15976] ppid=15970 vsize=848680 CPUtime=0.94
/proc/15975/task/15976/stat : 15976 (java) S 15970 15970 15132 0 -1 64 4145 0 1 0 90 4 0 0 23 0 9 0 58843512 869048320 6776 996147200 134512640 134550932 4294955408 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=15975/tid=15977] ppid=15970 vsize=848680 CPUtime=0.09
/proc/15975/task/15977/stat : 15977 (java) S 15970 15970 15132 0 -1 64 1513 0 0 0 9 0 0 0 16 0 9 0 58843513 869048320 6776 996147200 134512640 134550932 4294955408 18446744073709551615 4294960144 0 0 0 25189583 0 0 0 -1 1 0 0
[pid=15975/tid=15978] ppid=15970 vsize=848680 CPUtime=0
/proc/15975/task/15978/stat : 15978 (java) S 15970 15970 15132 0 -1 64 13 0 0 0 0 0 0 0 15 0 9 0 58843513 869048320 6776 996147200 134512640 134550932 4294955408 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=15975/tid=15979] ppid=15970 vsize=848680 CPUtime=0
/proc/15975/task/15979/stat : 15979 (java) S 15970 15970 15132 0 -1 64 4 0 0 0 0 0 0 0 15 0 9 0 58843513 869048320 6776 996147200 134512640 134550932 4294955408 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=15975/tid=15980] ppid=15970 vsize=848680 CPUtime=0
/proc/15975/task/15980/stat : 15980 (java) S 15970 15970 15132 0 -1 64 1 0 0 0 0 0 0 0 18 0 9 0 58843516 869048320 6776 996147200 134512640 134550932 4294955408 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=15975/tid=15981] ppid=15970 vsize=848680 CPUtime=0.38
/proc/15975/task/15981/stat : 15981 (java) S 15970 15970 15132 0 -1 64 1614 0 0 0 37 1 0 0 15 0 9 0 58843519 869048320 6776 996147200 134512640 134550932 4294955408 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=15975/tid=15982] ppid=15970 vsize=848680 CPUtime=0
/proc/15975/task/15982/stat : 15982 (java) S 15970 15970 15132 0 -1 64 1 0 0 0 0 0 0 0 20 0 9 0 58843519 869048320 6776 996147200 134512640 134550932 4294955408 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
[pid=15975/tid=15983] ppid=15970 vsize=848680 CPUtime=0
/proc/15975/task/15983/stat : 15983 (java) S 15970 15970 15132 0 -1 64 0 0 0 0 0 0 0 0 15 0 9 0 58843519 869048320 6776 996147200 134512640 134550932 4294955408 18446744073709551615 4294960144 0 4 0 25189583 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.45
Current children cumulated vsize (KiB) 854036

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

Child status: 0
Real time (s): 1.55278
CPU time (s): 1.47078
CPU user time (s): 1.38579
CPU system time (s): 0.084987
CPU usage (%): 94.7187
Max. virtual memory (cumulated for all children) (KiB): 854036

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.38579
system time used= 0.084987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8619
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= 1683
involuntary context switches= 1601

runsolver used 0.003999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node69 at 2009-07-16 06:16:48
IDJOB=2080505
IDBENCH=57099
IDSOLVER=735
FILE ID=node69/2080505-1247717808
PBS_JOBID= 9521472
Free space on /tmp= 66420 MiB

SOLVER NAME= Concrete 2009-06-10
BENCH NAME= CPAI08/csp/queensKnights/normalized-queensKnights-10-5-add.xml
COMMAND LINE= HOME/concrete.sh -c BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2080505-1247717808/watcher-2080505-1247717808 -o /tmp/evaluation-result-2080505-1247717808/solver-2080505-1247717808 -C 1800 -W 2000 -M 900  HOME/concrete.sh -c HOME/instance-2080505-1247717808.xml

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

MD5SUM BENCH= 7f40f39ce18aac0954c703f625811a4a
RANDOM SEED=1656657162

node69.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		: 3000.211
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		: 3000.211
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:       1379416 kB
Buffers:         82704 kB
Cached:         436408 kB
SwapCached:          0 kB
Active:         189756 kB
Inactive:       406420 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1379416 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1316 kB
Writeback:           0 kB
Mapped:          88556 kB
Slab:            65576 kB
Committed_AS:   617088 kB
PageTables:       1984 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= 66416 MiB
End job on node69 at 2009-07-16 06:16:50