Trace number 2080621

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
Mistral 1.545UNSAT 22.1836 22.1943

DiagnosticValue
ASSIGNMENTS15005
CHECKS3318100
NODES15005

General information on the benchmark

Namecsp/knights/
normalized-knights-80-9.xml
MD5SUMdcac56c0e48723f8c0ddbfc8ec2d0014
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 benchmark22.1836
Satisfiable
(Un)Satisfiability was proved
Number of variables9
Number of constraints36
Maximum constraint arity2
Maximum domain size6400
Number of constraints which are defined in extension0
Number of constraints which are defined in intension36
Global constraints used (with number of constraints)

Solver Data 

0.00/0.00	c mistral version 1.545
22.08/22.18	s UNSATISFIABLE
22.08/22.18	d CHECKS 3318105
22.08/22.18	d ASSIGNMENTS 15005
22.08/22.18	d NODES 15005 BACKTRACKS 14847 FAILURES 14848 RUNTIME 22.17 TOTALTIME 22.17 NODES/s 676.816 CHECKS/s 149666

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-2080621-1247370294/watcher-2080621-1247370294 -o /tmp/evaluation-result-2080621-1247370294/solver-2080621-1247370294 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2080621-1247370294.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: 1.98 1.98 1.99 4/82 25921
/proc/meminfo: memFree=1177712/2055920 swapFree=4192812/4192956
[pid=25921] ppid=25919 vsize=4804 CPUtime=0
/proc/25921/stat : 25921 (ld-linux.so.2) R 25919 25921 19118 0 -1 4194304 181 0 0 0 0 0 0 0 18 0 1 0 24096016 4919296 162 996147200 1448431616 1448550632 4294956208 18446744073709551615 1448480482 0 0 4096 0 0 0 0 17 0 0 0
/proc/25921/statm: 1201 162 137 29 0 16 0

[startup+0.0261671 s]
/proc/loadavg: 1.98 1.98 1.99 4/82 25921
/proc/meminfo: memFree=1177712/2055920 swapFree=4192812/4192956
[pid=25921] ppid=25919 vsize=9040 CPUtime=0.01
/proc/25921/stat : 25921 (ld-linux.so.2) R 25919 25921 19118 0 -1 4194304 1511 0 0 0 1 0 0 0 18 0 1 0 24096016 9256960 1490 996147200 1448431616 1448550632 4294956208 18446744073709551615 134832102 0 0 4096 0 0 0 0 17 0 0 0
/proc/25921/statm: 2260 1490 427 29 0 1075 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 9040

[startup+0.101173 s]
/proc/loadavg: 1.98 1.98 1.99 4/82 25921
/proc/meminfo: memFree=1177712/2055920 swapFree=4192812/4192956
[pid=25921] ppid=25919 vsize=9040 CPUtime=0.09
/proc/25921/stat : 25921 (ld-linux.so.2) R 25919 25921 19118 0 -1 4194304 1519 0 0 0 9 0 0 0 18 0 1 0 24096016 9256960 1498 996147200 1448431616 1448550632 4294956208 18446744073709551615 134832102 0 0 4096 0 0 0 0 17 0 0 0
/proc/25921/statm: 2260 1498 433 29 0 1075 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9040

[startup+0.301193 s]
/proc/loadavg: 1.98 1.98 1.99 4/82 25921
/proc/meminfo: memFree=1177712/2055920 swapFree=4192812/4192956
[pid=25921] ppid=25919 vsize=9040 CPUtime=0.29
/proc/25921/stat : 25921 (ld-linux.so.2) R 25919 25921 19118 0 -1 4194304 1522 0 0 0 29 0 0 0 19 0 1 0 24096016 9256960 1501 996147200 1448431616 1448550632 4294956208 18446744073709551615 135117584 0 0 4096 0 0 0 0 17 0 0 0
/proc/25921/statm: 2260 1501 434 29 0 1075 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9040

[startup+0.701236 s]
/proc/loadavg: 1.98 1.98 1.99 4/82 25921
/proc/meminfo: memFree=1177712/2055920 swapFree=4192812/4192956
[pid=25921] ppid=25919 vsize=9040 CPUtime=0.68
/proc/25921/stat : 25921 (ld-linux.so.2) R 25919 25921 19118 0 -1 4194304 1522 0 0 0 68 0 0 0 23 0 1 0 24096016 9256960 1501 996147200 1448431616 1448550632 4294956208 18446744073709551615 135117584 0 0 4096 0 0 0 0 17 0 0 0
/proc/25921/statm: 2260 1501 434 29 0 1075 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 9040

[startup+1.50132 s]
/proc/loadavg: 1.98 1.98 1.99 3/83 25922
/proc/meminfo: memFree=1173480/2055920 swapFree=4192812/4192956
[pid=25921] ppid=25919 vsize=9040 CPUtime=1.48
/proc/25921/stat : 25921 (ld-linux.so.2) R 25919 25921 19118 0 -1 4194304 1523 0 0 0 148 0 0 0 25 0 1 0 24096016 9256960 1502 996147200 1448431616 1448550632 4294956208 18446744073709551615 135117584 0 0 4096 0 0 0 0 17 0 0 0
/proc/25921/statm: 2260 1502 434 29 0 1075 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 9040

[startup+3.1015 s]
/proc/loadavg: 1.98 1.98 1.99 3/83 25922
/proc/meminfo: memFree=1173352/2055920 swapFree=4192812/4192956
[pid=25921] ppid=25919 vsize=9040 CPUtime=3.08
/proc/25921/stat : 25921 (ld-linux.so.2) R 25919 25921 19118 0 -1 4194304 1525 0 0 0 308 0 0 0 25 0 1 0 24096016 9256960 1504 996147200 1448431616 1448550632 4294956208 18446744073709551615 135117584 0 0 4096 0 0 0 0 17 0 0 0
/proc/25921/statm: 2260 1504 434 29 0 1075 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 9040

[startup+6.30184 s]
/proc/loadavg: 1.98 1.98 1.99 3/83 25922
/proc/meminfo: memFree=1173288/2055920 swapFree=4192812/4192956
[pid=25921] ppid=25919 vsize=9040 CPUtime=6.28
/proc/25921/stat : 25921 (ld-linux.so.2) R 25919 25921 19118 0 -1 4194304 1525 0 0 0 628 0 0 0 25 0 1 0 24096016 9256960 1504 996147200 1448431616 1448550632 4294956208 18446744073709551615 135117584 0 0 4096 0 0 0 0 17 0 0 0
/proc/25921/statm: 2260 1504 434 29 0 1075 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 9040

[startup+12.7015 s]
/proc/loadavg: 1.98 1.98 1.99 3/83 25922
/proc/meminfo: memFree=1173168/2055920 swapFree=4192812/4192956
[pid=25921] ppid=25919 vsize=9040 CPUtime=12.68
/proc/25921/stat : 25921 (ld-linux.so.2) R 25919 25921 19118 0 -1 4194304 1525 0 0 0 1268 0 0 0 25 0 1 0 24096016 9256960 1504 996147200 1448431616 1448550632 4294956208 18446744073709551615 135263984 0 0 4096 0 0 0 0 17 0 0 0
/proc/25921/statm: 2260 1504 434 29 0 1075 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 9040

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

[startup+19.1012 s]
/proc/loadavg: 1.98 1.98 1.99 3/83 25922
/proc/meminfo: memFree=1173168/2055920 swapFree=4192812/4192956
[pid=25921] ppid=25919 vsize=9040 CPUtime=19.08
/proc/25921/stat : 25921 (ld-linux.so.2) R 25919 25921 19118 0 -1 4194304 1525 0 0 0 1908 0 0 0 25 0 1 0 24096016 9256960 1504 996147200 1448431616 1448550632 4294956208 18446744073709551615 134843024 0 0 4096 0 0 0 0 17 0 0 0
/proc/25921/statm: 2260 1504 434 29 0 1075 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 9040

[startup+20.7014 s]
/proc/loadavg: 1.98 1.98 1.99 3/83 25922
/proc/meminfo: memFree=1173168/2055920 swapFree=4192812/4192956
[pid=25921] ppid=25919 vsize=9040 CPUtime=20.68
/proc/25921/stat : 25921 (ld-linux.so.2) R 25919 25921 19118 0 -1 4194304 1525 0 0 0 2068 0 0 0 25 0 1 0 24096016 9256960 1504 996147200 1448431616 1448550632 4294956208 18446744073709551615 135304898 0 0 4096 0 0 0 0 17 0 0 0
/proc/25921/statm: 2260 1504 434 29 0 1075 0
Current children cumulated CPU time (s) 20.68
Current children cumulated vsize (KiB) 9040

[startup+21.5015 s]
/proc/loadavg: 1.98 1.98 1.99 3/83 25922
/proc/meminfo: memFree=1173168/2055920 swapFree=4192812/4192956
[pid=25921] ppid=25919 vsize=9040 CPUtime=21.48
/proc/25921/stat : 25921 (ld-linux.so.2) R 25919 25921 19118 0 -1 4194304 1525 0 0 0 2148 0 0 0 25 0 1 0 24096016 9256960 1504 996147200 1448431616 1448550632 4294956208 18446744073709551615 135117584 0 0 4096 0 0 0 0 17 0 0 0
/proc/25921/statm: 2260 1504 434 29 0 1075 0
Current children cumulated CPU time (s) 21.48
Current children cumulated vsize (KiB) 9040

[startup+21.9025 s]
/proc/loadavg: 1.98 1.98 1.99 3/83 25922
/proc/meminfo: memFree=1173168/2055920 swapFree=4192812/4192956
[pid=25921] ppid=25919 vsize=9040 CPUtime=21.88
/proc/25921/stat : 25921 (ld-linux.so.2) R 25919 25921 19118 0 -1 4194304 1525 0 0 0 2188 0 0 0 25 0 1 0 24096016 9256960 1504 996147200 1448431616 1448550632 4294956208 18446744073709551615 134831475 0 0 4096 0 0 0 0 17 0 0 0
/proc/25921/statm: 2260 1504 434 29 0 1075 0
Current children cumulated CPU time (s) 21.88
Current children cumulated vsize (KiB) 9040

[startup+22.1025 s]
/proc/loadavg: 1.98 1.98 1.99 3/83 25922
/proc/meminfo: memFree=1173168/2055920 swapFree=4192812/4192956
[pid=25921] ppid=25919 vsize=9040 CPUtime=22.08
/proc/25921/stat : 25921 (ld-linux.so.2) R 25919 25921 19118 0 -1 4194304 1525 0 0 0 2208 0 0 0 25 0 1 0 24096016 9256960 1504 996147200 1448431616 1448550632 4294956208 18446744073709551615 135269010 0 0 4096 0 0 0 0 17 0 0 0
/proc/25921/statm: 2260 1504 434 29 0 1075 0
Current children cumulated CPU time (s) 22.08
Current children cumulated vsize (KiB) 9040

Child status: 0
Real time (s): 22.1943
CPU time (s): 22.1836
CPU user time (s): 22.1736
CPU system time (s): 0.009998
CPU usage (%): 99.9519
Max. virtual memory (cumulated for all children) (KiB): 9040

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 22.1736
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1561
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 24
involuntary context switches= 512

runsolver used 0.024996 second user time and 0.075988 second system time

The end

Launcher Data 

Begin job on node19 at 2009-07-12 05:44:54
IDJOB=2080621
IDBENCH=57115
IDSOLVER=769
FILE ID=node19/2080621-1247370294
PBS_JOBID= 9506981
Free space on /tmp= 66432 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/knights/normalized-knights-80-9.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2080621-1247370294/watcher-2080621-1247370294 -o /tmp/evaluation-result-2080621-1247370294/solver-2080621-1247370294 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2080621-1247370294.xml

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

MD5SUM BENCH= dcac56c0e48723f8c0ddbfc8ec2d0014
RANDOM SEED=550313354

node19.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:       1178192 kB
Buffers:         51064 kB
Cached:         289820 kB
SwapCached:          0 kB
Active:         612384 kB
Inactive:       187732 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1178192 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1172 kB
Writeback:           0 kB
Mapped:         479516 kB
Slab:            61804 kB
Committed_AS:   654796 kB
PageTables:       2784 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= 66432 MiB
End job on node19 at 2009-07-12 05:45:16