Trace number 2081175

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 2.10468 2.1294

DiagnosticValue
ASSIGNMENTS832

General information on the benchmark

Namecsp/super-os/super-os-taillard-4/
normalized-super-os-taillard-4-7.xml
MD5SUMd038744e5a425fa56f3a89105458cb67
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 benchmark0.024996
Satisfiable
(Un)Satisfiability was proved
Number of variables32
Number of constraints160
Maximum constraint arity2
Maximum domain size197
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
0.18/0.22	c Seed is 704325749
0.18/0.22	c Constructing HOME/instance-2081175-1247719423.xml  with 1024 constraints
0.18/0.22	c Solving 832 backtracks 8 restarts
2.06/2.12	s UNSATISFIABLE
2.06/2.12	d ASSIGNMENTS 832

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-2081175-1247719423/watcher-2081175-1247719423 -o /tmp/evaluation-result-2081175-1247719423/solver-2081175-1247719423 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 704325749 HOME/instance-2081175-1247719423.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: 2.00 2.11 2.04 4/72 10256
/proc/meminfo: memFree=1181448/2055920 swapFree=4192812/4192956
[pid=10256] ppid=10254 vsize=18576 CPUtime=0
/proc/10256/stat : 10256 (runsolver) R 10254 10256 8940 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 59005638 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 251255123239 0 0 4096 24578 0 0 0 17 1 0 0
/proc/10256/statm: 4644 284 249 26 0 2626 0

[startup+0.087396 s]
/proc/loadavg: 2.00 2.11 2.04 4/72 10256
/proc/meminfo: memFree=1181448/2055920 swapFree=4192812/4192956
[pid=10256] ppid=10254 vsize=5276 CPUtime=0.06
/proc/10256/stat : 10256 (pcs.big) R 10254 10256 8940 0 -1 4194304 998 652 0 0 6 0 0 0 18 0 1 0 59005638 5402624 629 996147200 134512640 135215973 4294956304 18446744073709551615 134600376 0 0 4096 0 0 0 0 17 1 0 0
/proc/10256/statm: 1319 629 406 171 0 244 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 5276

[startup+0.102392 s]
/proc/loadavg: 2.00 2.11 2.04 4/72 10256
/proc/meminfo: memFree=1181448/2055920 swapFree=4192812/4192956
[pid=10256] ppid=10254 vsize=5276 CPUtime=0.08
/proc/10256/stat : 10256 (pcs.big) R 10254 10256 8940 0 -1 4194304 998 652 0 0 8 0 0 0 18 0 1 0 59005638 5402624 629 996147200 134512640 135215973 4294956304 18446744073709551615 134583493 0 0 4096 0 0 0 0 17 1 0 0
/proc/10256/statm: 1319 629 406 171 0 244 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5276

[startup+0.301415 s]
/proc/loadavg: 2.00 2.11 2.04 4/72 10256
/proc/meminfo: memFree=1181448/2055920 swapFree=4192812/4192956
[pid=10256] ppid=10254 vsize=5488 CPUtime=0.28
/proc/10256/stat : 10256 (pcs.big) R 10254 10256 8940 0 -1 4194304 1055 652 0 0 28 0 0 0 19 0 1 0 59005638 5619712 686 996147200 134512640 135215973 4294956304 18446744073709551615 134583387 0 0 4096 0 0 0 0 17 1 0 0
/proc/10256/statm: 1372 686 406 171 0 297 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5488

[startup+0.702458 s]
/proc/loadavg: 2.00 2.11 2.04 4/72 10256
/proc/meminfo: memFree=1181448/2055920 swapFree=4192812/4192956
[pid=10256] ppid=10254 vsize=6144 CPUtime=0.67
/proc/10256/stat : 10256 (pcs.big) R 10254 10256 8940 0 -1 4194304 1187 652 0 0 67 0 0 0 23 0 1 0 59005638 6291456 818 996147200 134512640 135215973 4294956304 18446744073709551615 134597469 0 0 4096 0 0 0 0 17 1 0 0
/proc/10256/statm: 1536 818 406 171 0 461 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6144

[startup+1.50155 s]
/proc/loadavg: 2.00 2.11 2.04 3/73 10261
/proc/meminfo: memFree=1179136/2055920 swapFree=4192812/4192956
[pid=10256] ppid=10254 vsize=7052 CPUtime=1.46
/proc/10256/stat : 10256 (pcs.big) R 10254 10256 8940 0 -1 4194304 1449 652 0 0 146 0 0 0 25 0 1 0 59005638 7221248 1047 996147200 134512640 135215973 4294956304 18446744073709551615 134599825 0 0 4096 0 0 0 0 17 1 0 0
/proc/10256/statm: 1763 1047 406 171 0 688 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 7052

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

[startup+1.90159 s]
/proc/loadavg: 2.00 2.11 2.04 3/73 10261
/proc/meminfo: memFree=1179136/2055920 swapFree=4192812/4192956
[pid=10256] ppid=10254 vsize=7444 CPUtime=1.86
/proc/10256/stat : 10256 (pcs.big) R 10254 10256 8940 0 -1 4194304 1574 652 0 0 186 0 0 0 25 0 1 0 59005638 7622656 1172 996147200 134512640 135215973 4294956304 18446744073709551615 4158960056 0 0 4096 0 0 0 0 17 1 0 0
/proc/10256/statm: 1861 1172 406 171 0 786 0
Current children cumulated CPU time (s) 1.86
Current children cumulated vsize (KiB) 7444

[startup+2.10161 s]
/proc/loadavg: 2.00 2.11 2.04 3/73 10261
/proc/meminfo: memFree=1177472/2055920 swapFree=4192812/4192956
[pid=10256] ppid=10254 vsize=7704 CPUtime=2.06
/proc/10256/stat : 10256 (pcs.big) R 10254 10256 8940 0 -1 4194304 1613 652 0 0 206 0 0 0 25 0 1 0 59005638 7888896 1211 996147200 134512640 135215973 4294956304 18446744073709551615 4158960136 0 0 4096 0 0 0 0 17 1 0 0
/proc/10256/statm: 1926 1211 406 171 0 851 0
Current children cumulated CPU time (s) 2.06
Current children cumulated vsize (KiB) 7704

Child status: 0
Real time (s): 2.1294
CPU time (s): 2.10468
CPU user time (s): 2.09168
CPU system time (s): 0.012998
CPU usage (%): 98.8393
Max. virtual memory (cumulated for all children) (KiB): 7704

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.09168
system time used= 0.012998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2271
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= 56

runsolver used 0.006998 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node64 at 2009-07-16 06:43:43
IDJOB=2081175
IDBENCH=57359
IDSOLVER=734
FILE ID=node64/2081175-1247719423
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-4-7.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2081175-1247719423/watcher-2081175-1247719423 -o /tmp/evaluation-result-2081175-1247719423/solver-2081175-1247719423 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 704325749 HOME/instance-2081175-1247719423.xml

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

MD5SUM BENCH= d038744e5a425fa56f3a89105458cb67
RANDOM SEED=704325749

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:       1181928 kB
Buffers:         84180 kB
Cached:         341908 kB
SwapCached:          0 kB
Active:         420132 kB
Inactive:       366368 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1181928 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1744 kB
Writeback:           0 kB
Mapped:         372008 kB
Slab:            72020 kB
Committed_AS:   834292 kB
PageTables:       2448 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 06:43:46