Trace number 2058591

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 0.440932 0.443669

DiagnosticValue
ASSIGNMENTS5345

General information on the benchmark

Namecsp/BH-4-4/
normalized-BlackHole-4-4-e-1_ext.xml
MD5SUM365329399fa1841ce8a99aa93f11dc01
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 benchmark0.017997
Satisfiable
(Un)Satisfiability was proved
Number of variables64
Number of constraints431
Maximum constraint arity2
Maximum domain size16
Number of constraints which are defined in extension431
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
0.18/0.20	c Seed is 2004563463
0.18/0.20	c Constructing HOME/instance-2058591-1247694266.xml  with 2495 constraints
0.18/0.20	c Solving 5345 backtracks 12 restarts
0.38/0.44	s UNSATISFIABLE
0.38/0.44	d ASSIGNMENTS 5345

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-2058591-1247694266/watcher-2058591-1247694266 -o /tmp/evaluation-result-2058591-1247694266/solver-2058591-1247694266 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 2004563463 HOME/instance-2058591-1247694266.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: 0.75 0.18 0.06 4/72 10404
/proc/meminfo: memFree=1315424/2055920 swapFree=4192812/4192956
[pid=10404] ppid=10402 vsize=5356 CPUtime=0
/proc/10404/stat : 10404 (pcssolve) S 10402 10404 10131 0 -1 4194304 305 155 0 0 0 0 0 0 19 0 1 0 56492830 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 233588712260 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/10404/statm: 1339 242 201 169 0 50 0
[pid=10406] ppid=10404 vsize=5356 CPUtime=0
/proc/10406/stat : 10406 (pcssolve) R 10404 10404 10131 0 -1 4194368 22 0 0 0 0 0 0 0 20 0 1 0 56492831 5484544 244 996147200 4194304 4889804 548682068800 18446744073709551615 233588714791 0 0 4096 0 0 0 0 17 1 0 0
/proc/10406/statm: 1339 244 203 169 0 50 0

[startup+0.0862441 s]
/proc/loadavg: 0.75 0.18 0.06 4/72 10404
/proc/meminfo: memFree=1315424/2055920 swapFree=4192812/4192956
[pid=10404] ppid=10402 vsize=4924 CPUtime=0.07
/proc/10404/stat : 10404 (pcs.small) R 10402 10404 10131 0 -1 4194304 940 823 0 0 7 0 0 0 18 0 1 0 56492830 5042176 549 996147200 134512640 135095119 4294956304 18446744073709551615 11122299 0 0 4096 0 0 0 0 17 0 0 0
/proc/10404/statm: 1231 549 378 142 0 185 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 4924

[startup+0.102246 s]
/proc/loadavg: 0.75 0.18 0.06 4/72 10404
/proc/meminfo: memFree=1315424/2055920 swapFree=4192812/4192956
[pid=10404] ppid=10402 vsize=4924 CPUtime=0.08
/proc/10404/stat : 10404 (pcs.small) R 10402 10404 10131 0 -1 4194304 956 823 0 0 8 0 0 0 18 0 1 0 56492830 5042176 565 996147200 134512640 135095119 4294956304 18446744073709551615 134642872 0 0 4096 0 0 0 0 17 0 0 0
/proc/10404/statm: 1231 565 378 142 0 185 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 4924

[startup+0.301282 s]
/proc/loadavg: 0.75 0.18 0.06 4/72 10404
/proc/meminfo: memFree=1315424/2055920 swapFree=4192812/4192956
[pid=10404] ppid=10402 vsize=5572 CPUtime=0.28
/proc/10404/stat : 10404 (pcs.small) R 10402 10404 10131 0 -1 4194304 1139 823 0 0 28 0 0 0 19 0 1 0 56492830 5705728 682 996147200 134512640 135095119 4294956304 18446744073709551615 134616992 0 0 4096 0 0 0 0 17 0 0 0
/proc/10404/statm: 1393 682 378 142 0 347 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5572

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

[startup+0.402301 s]
/proc/loadavg: 0.75 0.18 0.06 4/72 10404
/proc/meminfo: memFree=1315424/2055920 swapFree=4192812/4192956
[pid=10404] ppid=10402 vsize=5704 CPUtime=0.38
/proc/10404/stat : 10404 (pcs.small) R 10402 10404 10131 0 -1 4194304 1185 823 0 0 38 0 0 0 20 0 1 0 56492830 5840896 728 996147200 134512640 135095119 4294956304 18446744073709551615 134636931 0 0 4096 0 0 0 0 17 0 0 0
/proc/10404/statm: 1426 728 378 142 0 380 0
Current children cumulated CPU time (s) 0.38
Current children cumulated vsize (KiB) 5704

Child status: 0
Real time (s): 0.443669
CPU time (s): 0.440932
CPU user time (s): 0.426935
CPU system time (s): 0.013997
CPU usage (%): 99.3831
Max. virtual memory (cumulated for all children) (KiB): 5704

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.426935
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= 2026
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= 23
involuntary context switches= 14

runsolver used 0.004999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node27 at 2009-07-15 23:44:26
IDJOB=2058591
IDBENCH=53505
IDSOLVER=733
FILE ID=node27/2058591-1247694266
PBS_JOBID= 9521256
Free space on /tmp= 66244 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/BH-4-4/normalized-BlackHole-4-4-e-1_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2058591-1247694266/watcher-2058591-1247694266 -o /tmp/evaluation-result-2058591-1247694266/solver-2058591-1247694266 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 2004563463 HOME/instance-2058591-1247694266.xml

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

MD5SUM BENCH= 365329399fa1841ce8a99aa93f11dc01
RANDOM SEED=2004563463

node27.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		: 2800.239
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	: 5521.40
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		: 2800.239
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:       1315840 kB
Buffers:         72768 kB
Cached:         552016 kB
SwapCached:          0 kB
Active:         258608 kB
Inactive:       408032 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1315840 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4272 kB
Writeback:           0 kB
Mapped:          53200 kB
Slab:            58784 kB
Committed_AS:   580524 kB
PageTables:       1744 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264948 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66244 MiB
End job on node27 at 2009-07-15 23:44:26