Trace number 2090884

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 2.89456 2.91225

DiagnosticValue
ASSIGNMENTS5160
CHECKS1351690
NODES5160

General information on the benchmark

Namecsp/tightness0.9/
normalized-rand-2-40-180-84-900-2_ext.xml
MD5SUM3f54aac156e01bc9d1a303b6d2aeb902
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.89456
Satisfiable
(Un)Satisfiability was proved
Number of variables40
Number of constraints84
Maximum constraint arity2
Maximum domain size180
Number of constraints which are defined in extension84
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.08/0.10	c mistral version 1.545
2.77/2.89	s UNSATISFIABLE
2.77/2.89	d CHECKS 1351693
2.77/2.89	d ASSIGNMENTS 5160
2.77/2.89	d NODES 5160 BACKTRACKS 5160 FAILURES 5161 RUNTIME 2.64 TOTALTIME 2.86 NODES/s 1954.55 CHECKS/s 512005

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-2090884-1247391522/watcher-2090884-1247391522 -o /tmp/evaluation-result-2090884-1247391522/solver-2090884-1247391522 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2090884-1247391522.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: 1.99 2.03 2.00 4/81 28701
/proc/meminfo: memFree=1788240/2055920 swapFree=4192812/4192956
[pid=28701] ppid=28699 vsize=18576 CPUtime=0
/proc/28701/stat : 28701 (runsolver) R 28699 28701 25500 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 26216695 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 231882681639 0 2147483391 4096 24578 0 0 0 17 0 0 0
/proc/28701/statm: 4644 284 249 26 0 2626 0

[startup+0.054891 s]
/proc/loadavg: 1.99 2.03 2.00 4/81 28701
/proc/meminfo: memFree=1788240/2055920 swapFree=4192812/4192956
[pid=28701] ppid=28699 vsize=6000 CPUtime=0.04
/proc/28701/stat : 28701 (ld-linux.so.2) R 28699 28701 25500 0 -1 4194304 700 0 0 0 4 0 0 0 20 0 1 0 26216695 6144000 679 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157379616 0 0 4096 0 0 0 0 17 0 0 0
/proc/28701/statm: 1500 679 358 29 0 315 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 6000

[startup+0.101895 s]
/proc/loadavg: 1.99 2.03 2.00 4/81 28701
/proc/meminfo: memFree=1788240/2055920 swapFree=4192812/4192956
[pid=28701] ppid=28699 vsize=7196 CPUtime=0.08
/proc/28701/stat : 28701 (ld-linux.so.2) R 28699 28701 25500 0 -1 4194304 999 0 0 0 8 0 0 0 20 0 1 0 26216695 7368704 978 996147200 1448431616 1448550632 4294956208 18446744073709551615 134671439 0 0 4096 0 0 0 0 17 0 0 0
/proc/28701/statm: 1799 978 358 29 0 614 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 7196

[startup+0.301921 s]
/proc/loadavg: 1.99 2.03 2.00 4/81 28701
/proc/meminfo: memFree=1788240/2055920 swapFree=4192812/4192956
[pid=28701] ppid=28699 vsize=11964 CPUtime=0.28
/proc/28701/stat : 28701 (ld-linux.so.2) R 28699 28701 25500 0 -1 4194304 2230 0 0 0 28 0 0 0 22 0 1 0 26216695 12251136 2209 996147200 1448431616 1448550632 4294956208 18446744073709551615 135264259 0 0 4096 0 0 0 0 17 0 0 0
/proc/28701/statm: 2991 2209 412 29 0 1806 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 11964

[startup+0.701964 s]
/proc/loadavg: 1.99 2.03 2.00 4/81 28701
/proc/meminfo: memFree=1788240/2055920 swapFree=4192812/4192956
[pid=28701] ppid=28699 vsize=11964 CPUtime=0.68
/proc/28701/stat : 28701 (ld-linux.so.2) R 28699 28701 25500 0 -1 4194304 2230 0 0 0 68 0 0 0 25 0 1 0 26216695 12251136 2209 996147200 1448431616 1448550632 4294956208 18446744073709551615 135264232 0 0 4096 0 0 0 0 17 0 0 0
/proc/28701/statm: 2991 2209 412 29 0 1806 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 11964

[startup+1.50106 s]
/proc/loadavg: 1.99 2.03 2.00 3/82 28702
/proc/meminfo: memFree=1780936/2055920 swapFree=4192812/4192956
[pid=28701] ppid=28699 vsize=11964 CPUtime=1.47
/proc/28701/stat : 28701 (ld-linux.so.2) R 28699 28701 25500 0 -1 4194304 2230 0 0 0 147 0 0 0 25 0 1 0 26216695 12251136 2209 996147200 1448431616 1448550632 4294956208 18446744073709551615 135161202 0 0 4096 0 0 0 0 17 0 0 0
/proc/28701/statm: 2991 2209 412 29 0 1806 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 11964

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

[startup+2.30115 s]
/proc/loadavg: 1.99 2.03 2.00 3/82 28702
/proc/meminfo: memFree=1780808/2055920 swapFree=4192812/4192956
[pid=28701] ppid=28699 vsize=11964 CPUtime=2.27
/proc/28701/stat : 28701 (ld-linux.so.2) R 28699 28701 25500 0 -1 4194304 2230 0 0 0 227 0 0 0 25 0 1 0 26216695 12251136 2209 996147200 1448431616 1448550632 4294956208 18446744073709551615 135264232 0 0 4096 0 0 0 0 17 0 0 0
/proc/28701/statm: 2991 2209 412 29 0 1806 0
Current children cumulated CPU time (s) 2.27
Current children cumulated vsize (KiB) 11964

[startup+2.7012 s]
/proc/loadavg: 1.99 2.03 2.00 3/82 28702
/proc/meminfo: memFree=1780808/2055920 swapFree=4192812/4192956
[pid=28701] ppid=28699 vsize=11964 CPUtime=2.67
/proc/28701/stat : 28701 (ld-linux.so.2) R 28699 28701 25500 0 -1 4194304 2230 0 0 0 267 0 0 0 25 0 1 0 26216695 12251136 2209 996147200 1448431616 1448550632 4294956208 18446744073709551615 135264279 0 0 4096 0 0 0 0 17 0 0 0
/proc/28701/statm: 2991 2209 412 29 0 1806 0
Current children cumulated CPU time (s) 2.67
Current children cumulated vsize (KiB) 11964

[startup+2.90123 s]
/proc/loadavg: 1.99 2.03 2.00 3/82 28702
/proc/meminfo: memFree=1780808/2055920 swapFree=4192812/4192956
[pid=28701] ppid=28699 vsize=11968 CPUtime=2.87
/proc/28701/stat : 28701 (ld-linux.so.2) R 28699 28701 25500 0 -1 4194304 2265 0 0 0 287 0 0 0 25 0 1 0 26216695 12255232 2244 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157378112 0 0 4096 0 0 0 0 17 0 0 0
/proc/28701/statm: 2992 2244 446 29 0 1807 0
Current children cumulated CPU time (s) 2.87
Current children cumulated vsize (KiB) 11968

Child status: 0
Real time (s): 2.91225
CPU time (s): 2.89456
CPU user time (s): 2.88356
CPU system time (s): 0.010998
CPU usage (%): 99.3926
Max. virtual memory (cumulated for all children) (KiB): 11968

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.88356
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2266
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= 53

runsolver used 0.001999 second user time and 0.016997 second system time

The end

Launcher Data 

Begin job on node75 at 2009-07-12 11:38:42
IDJOB=2090884
IDBENCH=59928
IDSOLVER=769
FILE ID=node75/2090884-1247391522
PBS_JOBID= 9507168
Free space on /tmp= 66292 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/tightness0.9/normalized-rand-2-40-180-84-900-2_ext.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2090884-1247391522/watcher-2090884-1247391522 -o /tmp/evaluation-result-2090884-1247391522/solver-2090884-1247391522 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2090884-1247391522.xml

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

MD5SUM BENCH= 3f54aac156e01bc9d1a303b6d2aeb902
RANDOM SEED=721542893

node75.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		: 3000.232
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1788656 kB
Buffers:         22576 kB
Cached:         142460 kB
SwapCached:          0 kB
Active:         157896 kB
Inactive:        58356 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1788656 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2988 kB
Writeback:           0 kB
Mapped:          63876 kB
Slab:            36124 kB
Committed_AS:   272512 kB
PageTables:       1904 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= 66292 MiB
End job on node75 at 2009-07-12 11:38:45