Trace number 2065345

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 25.4141 25.6624

DiagnosticValue
ASSIGNMENTS786

General information on the benchmark

Namecsp/rand-10-20-10/
normalized-rand-10-20-10-5-10000-11_ext.xml
MD5SUMbf445b0edc5f252db310d539684109ce
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.61175
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints5
Maximum constraint arity10
Maximum domain size10
Number of constraints which are defined in extension5
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.02	c small-domain mode
0.00/0.03	c Seed is 340158479
0.00/0.03	c Constructing HOME/instance-2065345-1247703540.xml  with 5 constraints
0.26/0.34	c Solving 786 backtracks 7 restarts
25.32/25.66	s UNSATISFIABLE
25.32/25.66	d ASSIGNMENTS 786

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-2065345-1247703540/watcher-2065345-1247703540 -o /tmp/evaluation-result-2065345-1247703540/solver-2065345-1247703540 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 340158479 HOME/instance-2065345-1247703540.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: 2.79 2.47 2.19 4/81 5743
/proc/meminfo: memFree=1273552/2055920 swapFree=4192812/4192956
[pid=5743] ppid=5741 vsize=18576 CPUtime=0
/proc/5743/stat : 5743 (runsolver) R 5741 5743 4895 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 57420596 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 273952599335 0 0 4096 24578 0 0 0 17 1 0 0
/proc/5743/statm: 4644 284 249 26 0 2626 0

[startup+0.058742 s]
/proc/loadavg: 2.79 2.47 2.19 4/81 5743
/proc/meminfo: memFree=1273552/2055920 swapFree=4192812/4192956
[pid=5743] ppid=5741 vsize=4924 CPUtime=0.03
/proc/5743/stat : 5743 (pcs.small) R 5741 5743 4895 0 -1 4194304 945 1169 0 0 3 0 0 0 24 0 1 0 57420596 5042176 554 996147200 134512640 135095119 4294956304 18446744073709551615 134681635 0 0 4096 0 0 0 0 17 1 0 0
/proc/5743/statm: 1231 554 362 142 0 185 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 4924

[startup+0.10175 s]
/proc/loadavg: 2.79 2.47 2.19 4/81 5743
/proc/meminfo: memFree=1273552/2055920 swapFree=4192812/4192956
[pid=5743] ppid=5741 vsize=5632 CPUtime=0.07
/proc/5743/stat : 5743 (pcs.small) R 5741 5743 4895 0 -1 4194304 1083 1169 0 0 7 0 0 0 24 0 1 0 57420596 5767168 692 996147200 134512640 135095119 4294956304 18446744073709551615 134741332 0 0 4096 0 0 0 0 17 1 0 0
/proc/5743/statm: 1408 692 375 142 0 362 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5632

[startup+0.301772 s]
/proc/loadavg: 2.79 2.47 2.19 4/81 5743
/proc/meminfo: memFree=1273552/2055920 swapFree=4192812/4192956
[pid=5743] ppid=5741 vsize=7716 CPUtime=0.26
/proc/5743/stat : 5743 (pcs.small) R 5741 5743 4895 0 -1 4194304 1449 1169 0 0 26 0 0 0 25 0 1 0 57420596 7901184 1058 996147200 134512640 135095119 4294956304 18446744073709551615 134803172 0 0 4096 0 0 0 0 17 1 0 0
/proc/5743/statm: 1929 1058 375 142 0 883 0
Current children cumulated CPU time (s) 0.26
Current children cumulated vsize (KiB) 7716

[startup+0.701817 s]
/proc/loadavg: 2.79 2.47 2.19 4/81 5743
/proc/meminfo: memFree=1273552/2055920 swapFree=4192812/4192956
[pid=5743] ppid=5741 vsize=7624 CPUtime=0.66
/proc/5743/stat : 5743 (pcs.small) R 5741 5743 4895 0 -1 4194304 1588 1169 0 0 66 0 0 0 25 0 1 0 57420596 7806976 1192 996147200 134512640 135095119 4294956304 18446744073709551615 134926990 0 0 4096 0 0 0 0 17 1 0 0
/proc/5743/statm: 1906 1192 389 142 0 860 0
Current children cumulated CPU time (s) 0.66
Current children cumulated vsize (KiB) 7624

[startup+1.50191 s]
/proc/loadavg: 2.79 2.47 2.19 3/82 5749
/proc/meminfo: memFree=1270280/2055920 swapFree=4192812/4192956
[pid=5743] ppid=5741 vsize=7624 CPUtime=1.45
/proc/5743/stat : 5743 (pcs.small) R 5741 5743 4895 0 -1 4194304 1588 1169 0 0 145 0 0 0 25 0 1 0 57420596 7806976 1192 996147200 134512640 135095119 4294956304 18446744073709551615 134927011 0 0 4096 0 0 0 0 17 1 0 0
/proc/5743/statm: 1906 1192 389 142 0 860 0
Current children cumulated CPU time (s) 1.45
Current children cumulated vsize (KiB) 7624

[startup+3.10109 s]
/proc/loadavg: 2.79 2.47 2.19 3/82 5749
/proc/meminfo: memFree=1270152/2055920 swapFree=4192812/4192956
[pid=5743] ppid=5741 vsize=7624 CPUtime=3.04
/proc/5743/stat : 5743 (pcs.small) R 5741 5743 4895 0 -1 4194304 1588 1169 0 0 304 0 0 0 25 0 1 0 57420596 7806976 1192 996147200 134512640 135095119 4294956304 18446744073709551615 134918241 0 0 4096 0 0 0 0 17 1 0 0
/proc/5743/statm: 1906 1192 389 142 0 860 0
Current children cumulated CPU time (s) 3.04
Current children cumulated vsize (KiB) 7624

[startup+6.30148 s]
/proc/loadavg: 2.72 2.46 2.19 3/82 5749
/proc/meminfo: memFree=1269960/2055920 swapFree=4192812/4192956
[pid=5743] ppid=5741 vsize=7624 CPUtime=6.21
/proc/5743/stat : 5743 (pcs.small) R 5741 5743 4895 0 -1 4194304 1588 1169 0 0 621 0 0 0 25 0 1 0 57420596 7806976 1192 996147200 134512640 135095119 4294956304 18446744073709551615 134927011 0 0 4096 0 0 0 0 17 1 0 0
/proc/5743/statm: 1906 1192 389 142 0 860 0
Current children cumulated CPU time (s) 6.21
Current children cumulated vsize (KiB) 7624

[startup+12.7012 s]
/proc/loadavg: 2.67 2.45 2.18 3/82 5749
/proc/meminfo: memFree=1269960/2055920 swapFree=4192812/4192956
[pid=5743] ppid=5741 vsize=7624 CPUtime=12.55
/proc/5743/stat : 5743 (pcs.small) R 5741 5743 4895 0 -1 4194304 1588 1169 0 0 1255 0 0 0 25 0 1 0 57420596 7806976 1192 996147200 134512640 135095119 4294956304 18446744073709551615 134918266 0 0 4096 0 0 0 0 17 1 0 0
/proc/5743/statm: 1906 1192 389 142 0 860 0
Current children cumulated CPU time (s) 12.55
Current children cumulated vsize (KiB) 7624

[startup+25.5017 s]
/proc/loadavg: 2.52 2.43 2.18 3/82 5749
/proc/meminfo: memFree=1270088/2055920 swapFree=4192812/4192956
[pid=5743] ppid=5741 vsize=7624 CPUtime=25.22
/proc/5743/stat : 5743 (pcs.small) R 5741 5743 4895 0 -1 4194304 1592 1169 0 0 2522 0 0 0 25 0 1 0 57420596 7806976 1196 996147200 134512640 135095119 4294956304 18446744073709551615 134918159 0 0 4096 0 0 0 0 17 1 0 0
/proc/5743/statm: 1906 1196 389 142 0 860 0
Current children cumulated CPU time (s) 25.22
Current children cumulated vsize (KiB) 7624

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

[startup+25.6017 s]
/proc/loadavg: 2.52 2.43 2.18 3/82 5749
/proc/meminfo: memFree=1270088/2055920 swapFree=4192812/4192956
[pid=5743] ppid=5741 vsize=7624 CPUtime=25.32
/proc/5743/stat : 5743 (pcs.small) R 5741 5743 4895 0 -1 4194304 1592 1169 0 0 2532 0 0 0 25 0 1 0 57420596 7806976 1196 996147200 134512640 135095119 4294956304 18446744073709551615 134927008 0 0 4096 0 0 0 0 17 1 0 0
/proc/5743/statm: 1906 1196 389 142 0 860 0
Current children cumulated CPU time (s) 25.32
Current children cumulated vsize (KiB) 7624

Child status: 0
Real time (s): 25.6624
CPU time (s): 25.4141
CPU user time (s): 25.3971
CPU system time (s): 0.016997
CPU usage (%): 99.0326
Max. virtual memory (cumulated for all children) (KiB): 7716

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 25.3971
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= 2764
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= 579

runsolver used 0.037994 second user time and 0.082987 second system time

The end

Launcher Data 

Begin job on node20 at 2009-07-16 02:19:00
IDJOB=2065345
IDBENCH=54352
IDSOLVER=733
FILE ID=node20/2065345-1247703540
PBS_JOBID= 9521268
Free space on /tmp= 66292 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/rand-10-20-10/normalized-rand-10-20-10-5-10000-11_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2065345-1247703540/watcher-2065345-1247703540 -o /tmp/evaluation-result-2065345-1247703540/solver-2065345-1247703540 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 340158479 HOME/instance-2065345-1247703540.xml

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

MD5SUM BENCH= bf445b0edc5f252db310d539684109ce
RANDOM SEED=340158479

node20.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		: 3000.236
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		: 3000.236
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:       1274032 kB
Buffers:         80840 kB
Cached:         550948 kB
SwapCached:          0 kB
Active:         208000 kB
Inactive:       484528 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1274032 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2732 kB
Writeback:           0 kB
Mapped:          81164 kB
Slab:            74420 kB
Committed_AS:   528248 kB
PageTables:       1940 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= 66288 MiB
End job on node20 at 2009-07-16 02:19:26