Trace number 2091998

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
pcs 0.3.2UNSAT 0.082986 0.0888409

DiagnosticValue
ASSIGNMENTS12

General information on the benchmark

Namecsp/composed-75-1-80/
normalized-composed-75-1-80-9_ext.xml
MD5SUM05c5b6d7b550641ccdfb1a4c4ad95714
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 benchmark0.045992
Satisfiable
(Un)Satisfiability was proved
Number of variables83
Number of constraints702
Maximum constraint arity2
Maximum domain size10
Number of constraints which are defined in extension702
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.04/0.08	c Seed is 1048442299
0.04/0.08	c Constructing HOME/instance-2091998-1247733662.xml  with 5058 constraints
0.04/0.08	c Solving 12 backtracks
0.04/0.08	s UNSATISFIABLE
0.04/0.08	d ASSIGNMENTS 12

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-2091998-1247733662/watcher-2091998-1247733662 -o /tmp/evaluation-result-2091998-1247733662/solver-2091998-1247733662 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1048442299 HOME/instance-2091998-1247733662.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: 2.06 2.05 2.01 4/72 15901
/proc/meminfo: memFree=1494736/2055920 swapFree=4192812/4192956
[pid=15901] ppid=15899 vsize=18576 CPUtime=0
/proc/15901/stat : 15901 (runsolver) R 15899 15901 14544 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 60432726 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 221236489511 0 0 4096 24578 0 0 0 17 1 0 0
/proc/15901/statm: 4644 284 249 26 0 2626 0

[startup+0.07063 s]
/proc/loadavg: 2.06 2.05 2.01 4/72 15901
/proc/meminfo: memFree=1494736/2055920 swapFree=4192812/4192956
[pid=15901] ppid=15899 vsize=5692 CPUtime=0.04
/proc/15901/stat : 15901 (pcs.small) R 15899 15901 14544 0 -1 4194304 1074 822 0 0 4 0 0 0 18 0 1 0 60432726 5828608 683 996147200 134512640 135095119 4294956304 18446744073709551615 134608641 0 0 4096 0 0 0 0 17 1 0 0
/proc/15901/statm: 1423 683 367 142 0 377 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 5692

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

[startup+0.07063 s]
/proc/loadavg: 2.06 2.05 2.01 4/72 15901
/proc/meminfo: memFree=1494736/2055920 swapFree=4192812/4192956
[pid=15901] ppid=15899 vsize=5692 CPUtime=0.04
/proc/15901/stat : 15901 (pcs.small) R 15899 15901 14544 0 -1 4194304 1074 822 0 0 4 0 0 0 18 0 1 0 60432726 5828608 683 996147200 134512640 135095119 4294956304 18446744073709551615 134608641 0 0 4096 0 0 0 0 17 1 0 0
/proc/15901/statm: 1423 683 367 142 0 377 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 5692

Child status: 0
Real time (s): 0.0888409
CPU time (s): 0.082986
CPU user time (s): 0.068989
CPU system time (s): 0.013997
CPU usage (%): 93.4097
Max. virtual memory (cumulated for all children) (KiB): 5692

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.068989
system time used= 0.013997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1969
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= 22
involuntary context switches= 8

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node21 at 2009-07-16 10:41:03
IDJOB=2091998
IDBENCH=60232
IDSOLVER=733
FILE ID=node21/2091998-1247733662
PBS_JOBID= 9521534
Free space on /tmp= 66324 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/composed-75-1-80/normalized-composed-75-1-80-9_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2091998-1247733662/watcher-2091998-1247733662 -o /tmp/evaluation-result-2091998-1247733662/solver-2091998-1247733662 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1048442299 HOME/instance-2091998-1247733662.xml

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

MD5SUM BENCH= 05c5b6d7b550641ccdfb1a4c4ad95714
RANDOM SEED=1048442299

node21.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		: 3000.240
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		: 3000.240
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:       1495216 kB
Buffers:         80320 kB
Cached:         318228 kB
SwapCached:          0 kB
Active:         169468 kB
Inactive:       315028 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1495216 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2092 kB
Writeback:           0 kB
Mapped:          97348 kB
Slab:            61560 kB
Committed_AS:   536036 kB
PageTables:       1888 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= 66324 MiB
End job on node21 at 2009-07-16 10:41:03