Trace number 2085608

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 2.01869 2.03033

DiagnosticValue
ASSIGNMENTS22024

General information on the benchmark

Namecsp/graphColoring/insertion/full-insertion/
normalized-3-fullins-4-6.xml
MD5SUM2550f96fb44e3f12a4ac823881cfa598
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 benchmark2.01869
Satisfiable
(Un)Satisfiability was proved
Number of variables405
Number of constraints3524
Maximum constraint arity2
Maximum domain size6
Number of constraints which are defined in extension0
Number of constraints which are defined in intension3524
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.18/0.20	c Seed is 1013182534
0.18/0.20	c Constructing HOME/instance-2085608-1247726200.xml  with 3524 constraints
0.18/0.20	c Solving 22024 backtracks 16 restarts
1.97/2.02	s UNSATISFIABLE
1.97/2.02	d ASSIGNMENTS 22024

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-2085608-1247726200/watcher-2085608-1247726200 -o /tmp/evaluation-result-2085608-1247726200/solver-2085608-1247726200 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1013182534 HOME/instance-2085608-1247726200.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: 1.92 1.98 1.99 4/73 14776
/proc/meminfo: memFree=1429000/2055920 swapFree=4192812/4192956
[pid=14776] ppid=14774 vsize=5356 CPUtime=0
/proc/14776/stat : 14776 (pcssolve) S 14774 14776 14707 0 -1 4194304 339 474 0 0 0 0 0 0 19 0 1 0 59685416 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 243665527620 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/14776/statm: 1339 242 201 169 0 50 0
[pid=14780] ppid=14776 vsize=3676 CPUtime=0
/proc/14780/stat : 14780 (grep) R 14776 14776 14707 0 -1 4194304 158 0 0 0 0 0 0 0 21 0 1 0 59685417 3764224 125 996147200 4194304 4274172 548682068976 18446744073709551615 243665698898 0 0 4096 0 0 0 0 17 0 0 0
/proc/14780/statm: 919 125 101 19 0 43 0

[startup+0.0963471 s]
/proc/loadavg: 1.92 1.98 1.99 4/73 14776
/proc/meminfo: memFree=1429000/2055920 swapFree=4192812/4192956
[pid=14776] ppid=14774 vsize=5040 CPUtime=0.07
/proc/14776/stat : 14776 (pcs.small) R 14774 14776 14707 0 -1 4194304 952 822 0 0 7 0 0 0 18 0 1 0 59685416 5160960 561 996147200 134512640 135095119 4294956304 18446744073709551615 7221889 0 0 4096 0 0 0 0 17 0 0 0
/proc/14776/statm: 1260 561 373 142 0 214 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5040

[startup+0.101345 s]
/proc/loadavg: 1.92 1.98 1.99 4/73 14776
/proc/meminfo: memFree=1429000/2055920 swapFree=4192812/4192956
[pid=14776] ppid=14774 vsize=5040 CPUtime=0.08
/proc/14776/stat : 14776 (pcs.small) R 14774 14776 14707 0 -1 4194304 960 822 0 0 8 0 0 0 18 0 1 0 59685416 5160960 569 996147200 134512640 135095119 4294956304 18446744073709551615 134706762 0 0 4096 0 0 0 0 17 0 0 0
/proc/14776/statm: 1260 569 373 142 0 214 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5040

[startup+0.301382 s]
/proc/loadavg: 1.92 1.98 1.99 4/73 14776
/proc/meminfo: memFree=1429000/2055920 swapFree=4192812/4192956
[pid=14776] ppid=14774 vsize=5620 CPUtime=0.28
/proc/14776/stat : 14776 (pcs.small) R 14774 14776 14707 0 -1 4194304 1174 822 0 0 28 0 0 0 19 0 1 0 59685416 5754880 726 996147200 134512640 135095119 4294956304 18446744073709551615 134643061 0 0 4096 0 0 0 0 17 0 0 0
/proc/14776/statm: 1405 726 385 142 0 359 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 5620

[startup+0.701453 s]
/proc/loadavg: 1.92 1.98 1.99 4/73 14776
/proc/meminfo: memFree=1429000/2055920 swapFree=4192812/4192956
[pid=14776] ppid=14774 vsize=6780 CPUtime=0.69
/proc/14776/stat : 14776 (pcs.small) R 14774 14776 14707 0 -1 4194304 1569 822 0 0 68 1 0 0 23 0 1 0 59685416 6942720 991 996147200 134512640 135095119 4294956304 18446744073709551615 134590348 0 0 4096 0 0 0 0 17 0 0 0
/proc/14776/statm: 1695 991 385 142 0 649 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6780

[startup+1.50161 s]
/proc/loadavg: 1.92 1.98 1.99 3/74 14782
/proc/meminfo: memFree=1425472/2055920 swapFree=4192812/4192956
[pid=14776] ppid=14774 vsize=10124 CPUtime=1.47
/proc/14776/stat : 14776 (pcs.small) R 14774 14776 14707 0 -1 4194304 2611 822 0 0 146 1 0 0 25 0 1 0 59685416 10366976 1518 996147200 134512640 135095119 4294956304 18446744073709551615 134603390 0 0 4096 0 0 0 0 17 0 0 0
/proc/14776/statm: 2531 1518 385 142 0 1485 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 10124

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

[startup+1.90168 s]
/proc/loadavg: 1.92 1.98 1.99 3/74 14782
/proc/meminfo: memFree=1425472/2055920 swapFree=4192812/4192956
[pid=14776] ppid=14774 vsize=10636 CPUtime=1.87
/proc/14776/stat : 14776 (pcs.small) R 14774 14776 14707 0 -1 4194304 2852 822 0 0 186 1 0 0 25 0 1 0 59685416 10891264 1759 996147200 134512640 135095119 4294956304 18446744073709551615 134642970 0 0 4096 0 0 0 0 17 0 0 0
/proc/14776/statm: 2659 1759 385 142 0 1613 0
Current children cumulated CPU time (s) 1.87
Current children cumulated vsize (KiB) 10636

[startup+2.00169 s]
/proc/loadavg: 1.92 1.98 1.99 3/74 14782
/proc/meminfo: memFree=1425472/2055920 swapFree=4192812/4192956
[pid=14776] ppid=14774 vsize=10892 CPUtime=1.97
/proc/14776/stat : 14776 (pcs.small) R 14774 14776 14707 0 -1 4194304 2913 822 0 0 196 1 0 0 25 0 1 0 59685416 11153408 1820 996147200 134512640 135095119 4294956304 18446744073709551615 134617027 0 0 4096 0 0 0 0 17 0 0 0
/proc/14776/statm: 2723 1820 385 142 0 1677 0
Current children cumulated CPU time (s) 1.97
Current children cumulated vsize (KiB) 10892

Child status: 0
Real time (s): 2.03033
CPU time (s): 2.01869
CPU user time (s): 1.9937
CPU system time (s): 0.024996
CPU usage (%): 99.4268
Max. virtual memory (cumulated for all children) (KiB): 10892

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.9937
system time used= 0.024996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3744
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= 54

runsolver used 0.002999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node84 at 2009-07-16 08:36:40
IDJOB=2085608
IDBENCH=58460
IDSOLVER=734
FILE ID=node84/2085608-1247726200
PBS_JOBID= 9521598
Free space on /tmp= 66180 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/graphColoring/insertion/full-insertion/normalized-3-fullins-4-6.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2085608-1247726200/watcher-2085608-1247726200 -o /tmp/evaluation-result-2085608-1247726200/solver-2085608-1247726200 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1013182534 HOME/instance-2085608-1247726200.xml

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

MD5SUM BENCH= 2550f96fb44e3f12a4ac823881cfa598
RANDOM SEED=1013182534

node84.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		: 3000.259
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		: 3000.259
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1429352 kB
Buffers:         74768 kB
Cached:         215184 kB
SwapCached:          0 kB
Active:         332084 kB
Inactive:       205948 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1429352 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2504 kB
Writeback:           0 kB
Mapped:         259456 kB
Slab:            73476 kB
Committed_AS:   715124 kB
PageTables:       2152 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= 66180 MiB
End job on node84 at 2009-07-16 08:36:43