Trace number 2088556

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 4.32534 4.33173

DiagnosticValue
ASSIGNMENTS2

General information on the benchmark

Namecsp/subs/
normalized-scen06-sub1.xml
MD5SUM1791315634aef7f4a4e226b1dec10f47
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 benchmark0.076987
Satisfiable
(Un)Satisfiability was proved
Number of variables28
Number of constraints314
Maximum constraint arity2
Maximum domain size44
Number of constraints which are defined in extension0
Number of constraints which are defined in intension314
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
0.28/0.30	c Seed is 812850086
0.28/0.30	c Constructing HOME/instance-2088556-1247729447.xml  with 928 constraints
0.28/0.30	c Solving 2 backtracks
4.29/4.32	s UNSATISFIABLE
4.29/4.32	d ASSIGNMENTS 2

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-2088556-1247729447/watcher-2088556-1247729447 -o /tmp/evaluation-result-2088556-1247729447/solver-2088556-1247729447 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 812850086 HOME/instance-2088556-1247729447.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 4/73 17553
/proc/meminfo: memFree=1474336/2055920 swapFree=4192812/4192956
[pid=17553] ppid=17551 vsize=5356 CPUtime=0
/proc/17553/stat : 17553 (pcssolve) S 17551 17553 17055 0 -1 4194304 305 155 0 0 0 0 0 0 19 0 1 0 60009635 5484544 242 996147200 4194304 4889804 548682068800 18446744073709551615 224264774468 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/17553/statm: 1339 242 201 169 0 50 0
[pid=17555] ppid=17553 vsize=1332 CPUtime=0
/proc/17555/stat : 17555 (grep) R 17553 17553 17055 0 -1 4194304 55 0 0 0 0 0 0 0 20 0 1 0 60009636 1363968 33 996147200 4194304 4274172 548682069040 18446744073709551615 224262157705 0 0 4096 0 0 0 0 17 0 0 0
/proc/17555/statm: 333 33 25 19 0 4 0

[startup+0.0860729 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 17553
/proc/meminfo: memFree=1474336/2055920 swapFree=4192812/4192956
[pid=17553] ppid=17551 vsize=5308 CPUtime=0.07
/proc/17553/stat : 17553 (pcs.big) R 17551 17553 17055 0 -1 4194304 1022 662 0 0 7 0 0 0 17 0 1 0 60009635 5435392 653 996147200 134512640 135215973 4294956304 18446744073709551615 4158960033 0 0 4096 0 0 0 0 17 0 0 0
/proc/17553/statm: 1327 653 401 171 0 252 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5308

[startup+0.102074 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 17553
/proc/meminfo: memFree=1474336/2055920 swapFree=4192812/4192956
[pid=17553] ppid=17551 vsize=5440 CPUtime=0.08
/proc/17553/stat : 17553 (pcs.big) R 17551 17553 17055 0 -1 4194304 1040 662 0 0 8 0 0 0 17 0 1 0 60009635 5570560 671 996147200 134512640 135215973 4294956304 18446744073709551615 6985285 0 0 4096 0 0 0 0 17 0 0 0
/proc/17553/statm: 1360 671 401 171 0 285 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5440

[startup+0.302115 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 17553
/proc/meminfo: memFree=1474336/2055920 swapFree=4192812/4192956
[pid=17553] ppid=17551 vsize=7072 CPUtime=0.28
/proc/17553/stat : 17553 (pcs.big) R 17551 17553 17055 0 -1 4194304 1454 662 0 0 28 0 0 0 18 0 1 0 60009635 7241728 1085 996147200 134512640 135215973 4294956304 18446744073709551615 6985339 0 0 4096 0 0 0 0 17 0 0 0
/proc/17553/statm: 1768 1085 401 171 0 693 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 7072

[startup+0.701186 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 17553
/proc/meminfo: memFree=1474336/2055920 swapFree=4192812/4192956
[pid=17553] ppid=17551 vsize=8988 CPUtime=0.68
/proc/17553/stat : 17553 (pcs.big) R 17551 17553 17055 0 -1 4194304 1938 662 0 0 68 0 0 0 22 0 1 0 60009635 9203712 1569 996147200 134512640 135215973 4294956304 18446744073709551615 134583640 0 0 4096 0 0 0 0 17 0 0 0
/proc/17553/statm: 2247 1569 401 171 0 1172 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 8988

[startup+1.50134 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 17558
/proc/meminfo: memFree=1469464/2055920 swapFree=4192812/4192956
[pid=17553] ppid=17551 vsize=8988 CPUtime=1.48
/proc/17553/stat : 17553 (pcs.big) R 17551 17553 17055 0 -1 4194304 1941 662 0 0 148 0 0 0 25 0 1 0 60009635 9203712 1572 996147200 134512640 135215973 4294956304 18446744073709551615 4158960683 0 0 4096 0 0 0 0 17 0 0 0
/proc/17553/statm: 2247 1572 401 171 0 1172 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 8988

[startup+3.10163 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 17558
/proc/meminfo: memFree=1469272/2055920 swapFree=4192812/4192956
[pid=17553] ppid=17551 vsize=9912 CPUtime=3.08
/proc/17553/stat : 17553 (pcs.big) R 17551 17553 17055 0 -1 4194304 2177 662 0 0 308 0 0 0 25 0 1 0 60009635 10149888 1808 996147200 134512640 135215973 4294956304 18446744073709551615 134585786 0 0 4096 0 0 0 0 17 0 0 0
/proc/17553/statm: 2478 1808 404 171 0 1403 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 9912

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

[startup+3.90178 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 17558
/proc/meminfo: memFree=1468376/2055920 swapFree=4192812/4192956
[pid=17553] ppid=17551 vsize=14612 CPUtime=3.88
/proc/17553/stat : 17553 (pcs.big) R 17551 17553 17055 0 -1 4194304 3328 662 0 0 387 1 0 0 25 0 1 0 60009635 14962688 2959 996147200 134512640 135215973 4294956304 18446744073709551615 134583640 0 0 4096 0 0 0 0 17 0 0 0
/proc/17553/statm: 3653 2959 404 171 0 2578 0
Current children cumulated CPU time (s) 3.88
Current children cumulated vsize (KiB) 14612

[startup+4.30186 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 17558
/proc/meminfo: memFree=1463776/2055920 swapFree=4192812/4192956
[pid=17553] ppid=17551 vsize=14612 CPUtime=4.29
/proc/17553/stat : 17553 (pcs.big) R 17551 17553 17055 0 -1 4194304 3331 662 0 0 428 1 0 0 25 0 1 0 60009635 14962688 2962 996147200 134512640 135215973 4294956304 18446744073709551615 134583640 0 0 4096 0 0 0 0 17 0 0 0
/proc/17553/statm: 3653 2962 404 171 0 2578 0
Current children cumulated CPU time (s) 4.29
Current children cumulated vsize (KiB) 14612

Child status: 0
Real time (s): 4.33173
CPU time (s): 4.32534
CPU user time (s): 4.30535
CPU system time (s): 0.019996
CPU usage (%): 99.8524
Max. virtual memory (cumulated for all children) (KiB): 14612

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.30534
system time used= 0.019996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3995
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= 18
involuntary context switches= 36

runsolver used 0.005999 second user time and 0.020996 second system time

The end

Launcher Data 

Begin job on node82 at 2009-07-16 09:30:47
IDJOB=2088556
IDBENCH=58938
IDSOLVER=734
FILE ID=node82/2088556-1247729447
PBS_JOBID= 9521613
Free space on /tmp= 66308 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/subs/normalized-scen06-sub1.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2088556-1247729447/watcher-2088556-1247729447 -o /tmp/evaluation-result-2088556-1247729447/solver-2088556-1247729447 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 812850086 HOME/instance-2088556-1247729447.xml

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

MD5SUM BENCH= 1791315634aef7f4a4e226b1dec10f47
RANDOM SEED=812850086

node82.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		: 3000.265
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		: 3000.265
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:       1474816 kB
Buffers:         81460 kB
Cached:         370468 kB
SwapCached:          0 kB
Active:          94880 kB
Inactive:       399720 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1474816 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1880 kB
Writeback:           0 kB
Mapped:          54148 kB
Slab:            71972 kB
Committed_AS:   556380 kB
PageTables:       1804 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= 66308 MiB
End job on node82 at 2009-07-16 09:30:51