Trace number 2066390

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 3.84941 3.8955

DiagnosticValue
ASSIGNMENTS572

General information on the benchmark

Namecsp/pseudo/ssa/
normalized-ssa-2670-130.xml
MD5SUMb5993597be648f09433dc31824ccc5b5
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.85172
Satisfiable
(Un)Satisfiability was proved
Number of variables2718
Number of constraints4676
Maximum constraint arity5
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension4676
Global constraints used (with number of constraints)

Solver Data 

0.00/0.02	c has operations which may create big domains
0.00/0.02	c big-domain mode
0.00/0.03	c Seed is 341724797
0.00/0.03	c Constructing HOME/instance-2066390-1247704882.xml  with 13043 constraints
0.27/0.31	c Solving 572 backtracks 7 restarts
3.74/3.89	s UNSATISFIABLE
3.74/3.89	d ASSIGNMENTS 572

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-2066390-1247704882/watcher-2066390-1247704882 -o /tmp/evaluation-result-2066390-1247704882/solver-2066390-1247704882 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 341724797 HOME/instance-2066390-1247704882.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: 2.09 2.24 2.25 4/81 9425
/proc/meminfo: memFree=1300056/2055920 swapFree=4192812/4192956
[pid=9425] ppid=9423 vsize=18576 CPUtime=0
/proc/9425/stat : 9425 (runsolver) R 9423 9425 8351 0 -1 4194368 15 0 0 0 0 0 0 0 18 0 1 0 57554870 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 227848809767 0 0 4096 24578 0 0 0 17 1 0 0
/proc/9425/statm: 4644 284 249 26 0 2626 0

[startup+0.0455721 s]
/proc/loadavg: 2.09 2.24 2.25 4/81 9425
/proc/meminfo: memFree=1300056/2055920 swapFree=4192812/4192956
[pid=9425] ppid=9423 vsize=4764 CPUtime=0.01
/proc/9425/stat : 9425 (pcs.big) R 9423 9425 8351 0 -1 4194304 876 826 0 0 1 0 0 0 21 0 1 0 57554870 4878336 485 996147200 134512640 135215973 4294956304 18446744073709551615 134583589 0 0 4096 0 0 0 0 17 0 0 0
/proc/9425/statm: 1191 485 361 171 0 116 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 4764

[startup+0.101538 s]
/proc/loadavg: 2.09 2.24 2.25 4/81 9425
/proc/meminfo: memFree=1300056/2055920 swapFree=4192812/4192956
[pid=9425] ppid=9423 vsize=6196 CPUtime=0.06
/proc/9425/stat : 9425 (pcs.big) R 9423 9425 8351 0 -1 4194304 1205 826 0 0 6 0 0 0 21 0 1 0 57554870 6344704 773 996147200 134512640 135215973 4294956304 18446744073709551615 4160505719 0 0 4096 0 0 0 0 17 0 0 0
/proc/9425/statm: 1549 773 385 171 0 474 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 6196

[startup+0.301559 s]
/proc/loadavg: 2.09 2.24 2.25 4/81 9425
/proc/meminfo: memFree=1300056/2055920 swapFree=4192812/4192956
[pid=9425] ppid=9423 vsize=8700 CPUtime=0.27
/proc/9425/stat : 9425 (pcs.big) R 9423 9425 8351 0 -1 4194304 2047 826 0 0 26 1 0 0 23 0 1 0 57554870 8908800 1382 996147200 134512640 135215973 4294956304 18446744073709551615 134524420 0 0 4096 0 0 0 0 17 0 0 0
/proc/9425/statm: 2175 1382 385 171 0 1100 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 8700

[startup+0.701601 s]
/proc/loadavg: 2.09 2.24 2.25 4/81 9425
/proc/meminfo: memFree=1300056/2055920 swapFree=4192812/4192956
[pid=9425] ppid=9423 vsize=13228 CPUtime=0.66
/proc/9425/stat : 9425 (pcs.big) R 9423 9425 8351 0 -1 4194304 3642 826 0 0 65 1 0 0 25 0 1 0 57554870 13545472 2380 996147200 134512640 135215973 4294956304 18446744073709551615 134532922 0 0 4096 0 0 0 0 17 0 0 0
/proc/9425/statm: 3307 2380 409 171 0 2232 0
Current children cumulated CPU time (s) 0.66
Current children cumulated vsize (KiB) 13228

[startup+1.50168 s]
/proc/loadavg: 2.09 2.24 2.25 3/82 9431
/proc/meminfo: memFree=1291216/2055920 swapFree=4192812/4192956
[pid=9425] ppid=9423 vsize=16032 CPUtime=1.45
/proc/9425/stat : 9425 (pcs.big) R 9423 9425 8351 0 -1 4194304 4336 826 0 0 144 1 0 0 25 0 1 0 57554870 16416768 3074 996147200 134512640 135215973 4294956304 18446744073709551615 134583488 0 0 4096 0 0 0 0 17 0 0 0
/proc/9425/statm: 4008 3074 409 171 0 2933 0
Current children cumulated CPU time (s) 1.45
Current children cumulated vsize (KiB) 16032

[startup+3.10183 s]
/proc/loadavg: 2.09 2.24 2.25 3/82 9431
/proc/meminfo: memFree=1286864/2055920 swapFree=4192812/4192956
[pid=9425] ppid=9423 vsize=20448 CPUtime=3.04
/proc/9425/stat : 9425 (pcs.big) R 9423 9425 8351 0 -1 4194304 5431 826 0 0 302 2 0 0 25 0 1 0 57554870 20938752 4169 996147200 134512640 135215973 4294956304 18446744073709551615 4158960146 0 0 4096 0 0 0 0 17 0 0 0
/proc/9425/statm: 5112 4169 409 171 0 4037 0
Current children cumulated CPU time (s) 3.04
Current children cumulated vsize (KiB) 20448

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

[startup+3.50187 s]
/proc/loadavg: 2.09 2.24 2.25 3/82 9431
/proc/meminfo: memFree=1283984/2055920 swapFree=4192812/4192956
[pid=9425] ppid=9423 vsize=22396 CPUtime=3.43
/proc/9425/stat : 9425 (pcs.big) R 9423 9425 8351 0 -1 4194304 5930 826 0 0 341 2 0 0 25 0 1 0 57554870 22933504 4668 996147200 134512640 135215973 4294956304 18446744073709551615 134532946 0 0 4096 0 0 0 0 17 0 0 0
/proc/9425/statm: 5599 4668 409 171 0 4524 0
Current children cumulated CPU time (s) 3.43
Current children cumulated vsize (KiB) 22396

[startup+3.70189 s]
/proc/loadavg: 2.09 2.24 2.25 3/82 9431
/proc/meminfo: memFree=1283984/2055920 swapFree=4192812/4192956
[pid=9425] ppid=9423 vsize=23268 CPUtime=3.64
/proc/9425/stat : 9425 (pcs.big) R 9423 9425 8351 0 -1 4194304 6151 826 0 0 361 3 0 0 25 0 1 0 57554870 23826432 4889 996147200 134512640 135215973 4294956304 18446744073709551615 134600149 0 0 4096 0 0 0 0 17 0 0 0
/proc/9425/statm: 5817 4889 409 171 0 4742 0
Current children cumulated CPU time (s) 3.64
Current children cumulated vsize (KiB) 23268

[startup+3.8019 s]
/proc/loadavg: 2.09 2.24 2.25 3/82 9431
/proc/meminfo: memFree=1283984/2055920 swapFree=4192812/4192956
[pid=9425] ppid=9423 vsize=23688 CPUtime=3.74
/proc/9425/stat : 9425 (pcs.big) R 9423 9425 8351 0 -1 4194304 6265 826 0 0 371 3 0 0 25 0 1 0 57554870 24256512 5003 996147200 134512640 135215973 4294956304 18446744073709551615 134590630 0 0 4096 0 0 0 0 17 0 0 0
/proc/9425/statm: 5922 5003 409 171 0 4847 0
Current children cumulated CPU time (s) 3.74
Current children cumulated vsize (KiB) 23688

Child status: 0
Real time (s): 3.8955
CPU time (s): 3.84941
CPU user time (s): 3.80642
CPU system time (s): 0.042993
CPU usage (%): 98.817
Max. virtual memory (cumulated for all children) (KiB): 23688

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.80642
system time used= 0.042993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7187
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= 22
involuntary context switches= 95

runsolver used 0.006998 second user time and 0.016997 second system time

The end

Launcher Data 

Begin job on node18 at 2009-07-16 02:41:22
IDJOB=2066390
IDBENCH=54515
IDSOLVER=733
FILE ID=node18/2066390-1247704882
PBS_JOBID= 9521273
Free space on /tmp= 66320 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/pseudo/ssa/normalized-ssa-2670-130.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2066390-1247704882/watcher-2066390-1247704882 -o /tmp/evaluation-result-2066390-1247704882/solver-2066390-1247704882 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 341724797 HOME/instance-2066390-1247704882.xml

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

MD5SUM BENCH= b5993597be648f09433dc31824ccc5b5
RANDOM SEED=341724797

node18.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		: 3000.243
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		: 3000.243
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:       1300536 kB
Buffers:         94220 kB
Cached:         530972 kB
SwapCached:          0 kB
Active:         279500 kB
Inactive:       393056 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1300536 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2472 kB
Writeback:           0 kB
Mapped:          67832 kB
Slab:            68068 kB
Committed_AS:   531240 kB
PageTables:       1884 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= 66320 MiB
End job on node18 at 2009-07-16 02:41:26