Trace number 2081174

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 2.31765 2.34522

DiagnosticValue
ASSIGNMENTS975

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
0.08/0.15	c Seed is 370829481
0.08/0.15	c Constructing HOME/instance-2081174-1247719423.xml  with 1024 constraints
0.08/0.15	c Solving 975 backtracks 8 restarts
2.26/2.34	s UNSATISFIABLE
2.26/2.34	d ASSIGNMENTS 975

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-2081174-1247719423/watcher-2081174-1247719423 -o /tmp/evaluation-result-2081174-1247719423/solver-2081174-1247719423 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 370829481 HOME/instance-2081174-1247719423.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 2.00 2.00 4/82 17426
/proc/meminfo: memFree=1411528/2055920 swapFree=4192812/4192956
[pid=17426] ppid=17424 vsize=18576 CPUtime=0
/proc/17426/stat : 17426 (runsolver) R 17424 17426 16829 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 59008320 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 254195330343 0 0 4096 24578 0 0 0 17 1 0 0
/proc/17426/statm: 4644 284 249 26 0 2626 0

[startup+0.09814 s]
/proc/loadavg: 2.00 2.00 2.00 4/82 17426
/proc/meminfo: memFree=1411528/2055920 swapFree=4192812/4192956
[pid=17426] ppid=17424 vsize=5272 CPUtime=0.08
/proc/17426/stat : 17426 (pcs.big) R 17424 17426 16829 0 -1 4194304 992 652 0 0 8 0 0 0 18 0 1 0 59008320 5398528 623 996147200 134512640 135215973 4294956304 18446744073709551615 8187526 0 0 4096 0 0 0 0 17 1 0 0
/proc/17426/statm: 1318 623 406 171 0 243 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5272

[startup+0.102139 s]
/proc/loadavg: 2.00 2.00 2.00 4/82 17426
/proc/meminfo: memFree=1411528/2055920 swapFree=4192812/4192956
[pid=17426] ppid=17424 vsize=5272 CPUtime=0.08
/proc/17426/stat : 17426 (pcs.big) R 17424 17426 16829 0 -1 4194304 992 652 0 0 8 0 0 0 18 0 1 0 59008320 5398528 623 996147200 134512640 135215973 4294956304 18446744073709551615 134591917 0 0 4096 0 0 0 0 17 1 0 0
/proc/17426/statm: 1318 623 406 171 0 243 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5272

[startup+0.302154 s]
/proc/loadavg: 2.00 2.00 2.00 4/82 17426
/proc/meminfo: memFree=1411528/2055920 swapFree=4192812/4192956
[pid=17426] ppid=17424 vsize=5748 CPUtime=0.28
/proc/17426/stat : 17426 (pcs.big) R 17424 17426 16829 0 -1 4194304 1104 652 0 0 28 0 0 0 20 0 1 0 59008320 5885952 735 996147200 134512640 135215973 4294956304 18446744073709551615 134583607 0 0 4096 0 0 0 0 17 1 0 0
/proc/17426/statm: 1437 735 406 171 0 362 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5748

[startup+0.702181 s]
/proc/loadavg: 2.00 2.00 2.00 4/82 17426
/proc/meminfo: memFree=1411528/2055920 swapFree=4192812/4192956
[pid=17426] ppid=17424 vsize=6008 CPUtime=0.67
/proc/17426/stat : 17426 (pcs.big) R 17424 17426 16829 0 -1 4194304 1181 652 0 0 67 0 0 0 23 0 1 0 59008320 6152192 812 996147200 134512640 135215973 4294956304 18446744073709551615 4158960089 0 0 4096 0 0 0 0 17 1 0 0
/proc/17426/statm: 1502 812 406 171 0 427 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 6008

[startup+1.50124 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 17431
/proc/meminfo: memFree=1409472/2055920 swapFree=4192812/4192956
[pid=17426] ppid=17424 vsize=6920 CPUtime=1.46
/proc/17426/stat : 17426 (pcs.big) R 17424 17426 16829 0 -1 4194304 1393 652 0 0 146 0 0 0 25 0 1 0 59008320 7086080 1024 996147200 134512640 135215973 4294956304 18446744073709551615 134591259 0 0 4096 0 0 0 0 17 1 0 0
/proc/17426/statm: 1730 1024 406 171 0 655 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 6920

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

[startup+1.90127 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 17431
/proc/meminfo: memFree=1409472/2055920 swapFree=4192812/4192956
[pid=17426] ppid=17424 vsize=7432 CPUtime=1.86
/proc/17426/stat : 17426 (pcs.big) R 17424 17426 16829 0 -1 4194304 1509 652 0 0 186 0 0 0 25 0 1 0 59008320 7610368 1140 996147200 134512640 135215973 4294956304 18446744073709551615 134592108 0 0 4096 0 0 0 0 17 1 0 0
/proc/17426/statm: 1858 1140 406 171 0 783 0
Current children cumulated CPU time (s) 1.86
Current children cumulated vsize (KiB) 7432

[startup+2.3013 s]
/proc/loadavg: 2.00 2.00 2.00 3/83 17431
/proc/meminfo: memFree=1408128/2055920 swapFree=4192812/4192956
[pid=17426] ppid=17424 vsize=7816 CPUtime=2.26
/proc/17426/stat : 17426 (pcs.big) R 17424 17426 16829 0 -1 4194304 1622 652 0 0 225 1 0 0 25 0 1 0 59008320 8003584 1253 996147200 134512640 135215973 4294956304 18446744073709551615 134585776 0 0 4096 0 0 0 0 17 1 0 0
/proc/17426/statm: 1954 1253 406 171 0 879 0
Current children cumulated CPU time (s) 2.26
Current children cumulated vsize (KiB) 7816

Child status: 0
Real time (s): 2.34522
CPU time (s): 2.31765
CPU user time (s): 2.30065
CPU system time (s): 0.016997
CPU usage (%): 98.8244
Max. virtual memory (cumulated for all children) (KiB): 7816

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.30065
system time used= 0.016997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2288
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= 107

runsolver used 0.009998 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node34 at 2009-07-16 06:43:43
IDJOB=2081174
IDBENCH=57359
IDSOLVER=733
FILE ID=node34/2081174-1247719423
PBS_JOBID= 9521418
Free space on /tmp= 66308 MiB

SOLVER NAME= pcs 0.2
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-2081174-1247719423/watcher-2081174-1247719423 -o /tmp/evaluation-result-2081174-1247719423/solver-2081174-1247719423 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 370829481 HOME/instance-2081174-1247719423.xml

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

MD5SUM BENCH= d038744e5a425fa56f3a89105458cb67
RANDOM SEED=370829481

node34.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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1412008 kB
Buffers:        100808 kB
Cached:         318480 kB
SwapCached:          0 kB
Active:         167672 kB
Inactive:       380272 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1412008 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1756 kB
Writeback:           0 kB
Mapped:         149060 kB
Slab:            80932 kB
Committed_AS:   698624 kB
PageTables:       2060 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= 66308 MiB
End job on node34 at 2009-07-16 06:43:45