Trace number 2069140

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 0.881865 0.893072

DiagnosticValue
ASSIGNMENTS48

General information on the benchmark

Namecsp/pseudo/uclid/
normalized-elf-rf7.xml
MD5SUMb303ec0d2b2de0b17f32c17f63378707
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.364943
Satisfiable
(Un)Satisfiability was proved
Number of variables1328
Number of constraints3348
Maximum constraint arity11
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension3348
Global constraints used (with number of constraints)

Solver Data 

0.00/0.02	c has operations which may create big domains
0.00/0.02	c big-domain mode
0.00/0.02	c Seed is 1134300743
0.00/0.02	c Constructing HOME/instance-2069140-1247707830.xml  with 10725 constraints
0.17/0.25	c Solving 48 backtracks 2 restarts
0.77/0.89	s UNSATISFIABLE
0.77/0.89	d ASSIGNMENTS 48

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-2069140-1247707830/watcher-2069140-1247707830 -o /tmp/evaluation-result-2069140-1247707830/solver-2069140-1247707830 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1134300743 HOME/instance-2069140-1247707830.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 2.09 2.08 4/82 15241
/proc/meminfo: memFree=493976/2055920 swapFree=4192812/4192956
[pid=15241] ppid=15239 vsize=5356 CPUtime=0
/proc/15241/stat : 15241 (pcssolve) R 15239 15241 13851 0 -1 4194304 266 0 0 0 0 0 0 0 20 0 1 0 57850291 5484544 234 996147200 4194304 4889804 548682068800 18446744073709551615 4365152 0 0 4100 65536 0 0 0 17 1 0 0
/proc/15241/statm: 1339 234 195 169 0 50 0

[startup+0.109805 s]
/proc/loadavg: 1.98 2.09 2.08 4/82 15241
/proc/meminfo: memFree=493976/2055920 swapFree=4192812/4192956
[pid=15241] ppid=15239 vsize=5824 CPUtime=0.08
/proc/15241/stat : 15241 (pcs.big) R 15239 15241 13851 0 -1 4194304 1118 826 0 0 8 0 0 0 25 0 1 0 57850291 5963776 727 996147200 134512640 135215973 4294956304 18446744073709551615 3300992 0 0 4096 0 0 0 0 17 1 0 0
/proc/15241/statm: 1456 727 385 171 0 381 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5824

[startup+0.202815 s]
/proc/loadavg: 1.98 2.09 2.08 4/82 15241
/proc/meminfo: memFree=493976/2055920 swapFree=4192812/4192956
[pid=15241] ppid=15239 vsize=6980 CPUtime=0.17
/proc/15241/stat : 15241 (pcs.big) R 15239 15241 13851 0 -1 4194304 1506 826 0 0 17 0 0 0 25 0 1 0 57850291 7147520 989 996147200 134512640 135215973 4294956304 18446744073709551615 134583586 0 0 4096 0 0 0 0 17 1 0 0
/proc/15241/statm: 1745 989 385 171 0 670 0
Current children cumulated CPU time (s) 0.17
Current children cumulated vsize (KiB) 6980

[startup+0.302831 s]
/proc/loadavg: 1.98 2.09 2.08 4/82 15241
/proc/meminfo: memFree=493976/2055920 swapFree=4192812/4192956
[pid=15241] ppid=15239 vsize=10628 CPUtime=0.28
/proc/15241/stat : 15241 (pcs.big) R 15239 15241 13851 0 -1 4194304 2657 826 0 0 26 2 0 0 25 0 1 0 57850291 10883072 1733 996147200 134512640 135215973 4294956304 18446744073709551615 134599825 0 0 4096 0 0 0 0 17 1 0 0
/proc/15241/statm: 2657 1733 406 171 0 1582 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 10628

[startup+0.702874 s]
/proc/loadavg: 1.98 2.09 2.08 4/82 15241
/proc/meminfo: memFree=493976/2055920 swapFree=4192812/4192956
[pid=15241] ppid=15239 vsize=12528 CPUtime=0.67
/proc/15241/stat : 15241 (pcs.big) R 15239 15241 13851 0 -1 4194304 3299 826 0 0 65 2 0 0 25 0 1 0 57850291 12828672 2166 996147200 134512640 135215973 4294956304 18446744073709551615 134590104 0 0 4096 0 0 0 0 17 1 0 0
/proc/15241/statm: 3132 2166 409 171 0 2057 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 12528

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

[startup+0.802884 s]
/proc/loadavg: 1.98 2.09 2.08 4/82 15241
/proc/meminfo: memFree=493976/2055920 swapFree=4192812/4192956
[pid=15241] ppid=15239 vsize=12660 CPUtime=0.77
/proc/15241/stat : 15241 (pcs.big) R 15239 15241 13851 0 -1 4194304 3326 826 0 0 75 2 0 0 25 0 1 0 57850291 12963840 2193 996147200 134512640 135215973 4294956304 18446744073709551615 134591685 0 0 4096 0 0 0 0 17 1 0 0
/proc/15241/statm: 3165 2193 409 171 0 2090 0
Current children cumulated CPU time (s) 0.77
Current children cumulated vsize (KiB) 12660

Child status: 0
Real time (s): 0.893072
CPU time (s): 0.881865
CPU user time (s): 0.844871
CPU system time (s): 0.036994
CPU usage (%): 98.7451
Max. virtual memory (cumulated for all children) (KiB): 12660

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.844871
system time used= 0.036994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4157
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= 46

runsolver used 0.001999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node17 at 2009-07-16 03:30:30
IDJOB=2069140
IDBENCH=54992
IDSOLVER=733
FILE ID=node17/2069140-1247707830
PBS_JOBID= 9521274
Free space on /tmp= 66356 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/pseudo/uclid/normalized-elf-rf7.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2069140-1247707830/watcher-2069140-1247707830 -o /tmp/evaluation-result-2069140-1247707830/solver-2069140-1247707830 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1134300743 HOME/instance-2069140-1247707830.xml

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

MD5SUM BENCH= b303ec0d2b2de0b17f32c17f63378707
RANDOM SEED=1134300743

node17.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		: 3000.213
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		: 3000.213
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:        494456 kB
Buffers:         89572 kB
Cached:         621708 kB
SwapCached:          0 kB
Active:         812156 kB
Inactive:       669116 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        494456 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2236 kB
Writeback:           0 kB
Mapped:         790412 kB
Slab:            63736 kB
Committed_AS:  1302488 kB
PageTables:       3416 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= 66356 MiB
End job on node17 at 2009-07-16 03:30:31