Trace number 2081197

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-restart 0.3.2UNSAT 0.050991 0.0569179

DiagnosticValue
ASSIGNMENTS8

General information on the benchmark

Namecsp/super-os/super-os-taillard-4/
normalized-super-os-taillard-4-29.xml
MD5SUM0465ef974d209ace9541959fe3731315
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 benchmark0.015997
Satisfiable
(Un)Satisfiability was proved
Number of variables32
Number of constraints160
Maximum constraint arity2
Maximum domain size238
Number of constraints which are defined in extension0
Number of constraints which are defined in intension160
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c has big domains
0.00/0.01	c big-domain mode
0.00/0.02	c Seed is 985449716
0.00/0.02	c Constructing HOME/instance-2081197-1247719430.xml  with 1024 constraints
0.00/0.03	c Solving 8 backtracks
0.03/0.05	s UNSATISFIABLE
0.03/0.05	d ASSIGNMENTS 8

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-2081197-1247719430/watcher-2081197-1247719430 -o /tmp/evaluation-result-2081197-1247719430/solver-2081197-1247719430 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 985449716 HOME/instance-2081197-1247719430.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: 2.08 2.12 2.04 4/72 10360
/proc/meminfo: memFree=1179720/2055920 swapFree=4192812/4192956
[pid=10360] ppid=10358 vsize=5356 CPUtime=0
/proc/10360/stat : 10360 (pcssolve) R 10358 10360 8940 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 59006334 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 251255122591 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/10360/statm: 1339 241 200 169 0 50 0
[pid=10361] ppid=10360 vsize=3676 CPUtime=0
/proc/10361/stat : 10361 (fgrep) R 10360 10360 8940 0 -1 4194304 149 0 0 0 0 0 0 0 22 0 1 0 59006335 3764224 116 996147200 4194304 4274172 548682068976 18446744073709551615 251254944432 0 0 4096 0 0 0 0 17 1 0 0
/proc/10361/statm: 919 116 90 19 0 43 0
[pid=10362] ppid=10360 vsize=5356 CPUtime=0
/proc/10362/stat : 10362 (pcssolve) R 10360 10360 8940 0 -1 4194368 0 0 0 0 0 0 0 0 21 0 1 0 59006335 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 251255122591 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/10362/statm: 1339 241 200 169 0 50 0

[startup+0.052667 s]
/proc/loadavg: 2.08 2.12 2.04 4/72 10360
/proc/meminfo: memFree=1179720/2055920 swapFree=4192812/4192956
[pid=10360] ppid=10358 vsize=5096 CPUtime=0.03
/proc/10360/stat : 10360 (pcs.big) R 10358 10360 8940 0 -1 4194304 971 653 0 0 3 0 0 0 23 0 1 0 59006334 5218304 602 996147200 134512640 135215973 4294956304 18446744073709551615 134532946 0 0 4096 0 0 0 0 17 1 0 0
/proc/10360/statm: 1274 602 406 171 0 199 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 5096

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

[startup+0.052667 s]
/proc/loadavg: 2.08 2.12 2.04 4/72 10360
/proc/meminfo: memFree=1179720/2055920 swapFree=4192812/4192956
[pid=10360] ppid=10358 vsize=5096 CPUtime=0.03
/proc/10360/stat : 10360 (pcs.big) R 10358 10360 8940 0 -1 4194304 971 653 0 0 3 0 0 0 23 0 1 0 59006334 5218304 602 996147200 134512640 135215973 4294956304 18446744073709551615 134532946 0 0 4096 0 0 0 0 17 1 0 0
/proc/10360/statm: 1274 602 406 171 0 199 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 5096

Child status: 0
Real time (s): 0.0569179
CPU time (s): 0.050991
CPU user time (s): 0.039993
CPU system time (s): 0.010998
CPU usage (%): 89.5869
Max. virtual memory (cumulated for all children) (KiB): 5096

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.039993
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= 1627
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= 19
involuntary context switches= 14

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node64 at 2009-07-16 06:43:50
IDJOB=2081197
IDBENCH=57365
IDSOLVER=734
FILE ID=node64/2081197-1247719430
PBS_JOBID= 9521357
Free space on /tmp= 66332 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/super-os/super-os-taillard-4/normalized-super-os-taillard-4-29.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2081197-1247719430/watcher-2081197-1247719430 -o /tmp/evaluation-result-2081197-1247719430/solver-2081197-1247719430 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 985449716 HOME/instance-2081197-1247719430.xml

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

MD5SUM BENCH= 0465ef974d209ace9541959fe3731315
RANDOM SEED=985449716

node64.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		: 3000.220
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		: 3000.220
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:       1180200 kB
Buffers:         84360 kB
Cached:         341864 kB
SwapCached:          0 kB
Active:         427892 kB
Inactive:       360228 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1180200 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2136 kB
Writeback:           0 kB
Mapped:         373436 kB
Slab:            72088 kB
Committed_AS:   835408 kB
PageTables:       2452 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66328 MiB
End job on node64 at 2009-07-16 06:43:50