Trace number 2074332

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 10.6374 10.7011

DiagnosticValue
ASSIGNMENTS41496

General information on the benchmark

Namecsp/chessboardColoration/
normalized-cc-10-10-2.xml
MD5SUM242a13254f0897334325ad0c36acff97
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 benchmark1.47578
Satisfiable
(Un)Satisfiability was proved
Number of variables100
Number of constraints2025
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension2025
Global constraints used (with number of constraints)

Solver Data 

0.00/0.02	c small-domain mode
0.00/0.02	c Seed is 969214369
0.00/0.02	c Constructing HOME/instance-2074332-1247712354.xml  with 36225 constraints
0.16/0.24	c Solving 41496 backtracks 17 restarts
10.51/10.70	s UNSATISFIABLE
10.51/10.70	d ASSIGNMENTS 41496

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-2074332-1247712354/watcher-2074332-1247712354 -o /tmp/evaluation-result-2074332-1247712354/solver-2074332-1247712354 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 969214369 HOME/instance-2074332-1247712354.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: 2.17 2.07 2.02 4/81 16940
/proc/meminfo: memFree=1515880/2055920 swapFree=4192812/4192956
[pid=16940] ppid=16938 vsize=18576 CPUtime=0
/proc/16940/stat : 16940 (runsolver) R 16938 16940 15134 0 -1 4194368 15 0 0 0 0 0 0 0 18 0 1 0 58298904 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 246406507815 0 0 4096 24578 0 0 0 17 1 0 0
/proc/16940/statm: 4644 284 249 26 0 2626 0

[startup+0.0417009 s]
/proc/loadavg: 2.17 2.07 2.02 4/81 16940
/proc/meminfo: memFree=1515880/2055920 swapFree=4192812/4192956
[pid=16940] ppid=16938 vsize=4928 CPUtime=0.01
/proc/16940/stat : 16940 (pcs.small) R 16938 16940 15134 0 -1 4194304 924 822 0 0 1 0 0 0 22 0 1 0 58298904 5046272 533 996147200 134512640 135095119 4294956304 18446744073709551615 10818070 0 0 4096 0 0 0 0 17 0 0 0
/proc/16940/statm: 1232 533 374 142 0 186 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 4928

[startup+0.102711 s]
/proc/loadavg: 2.17 2.07 2.02 4/81 16940
/proc/meminfo: memFree=1515880/2055920 swapFree=4192812/4192956
[pid=16940] ppid=16938 vsize=6580 CPUtime=0.07
/proc/16940/stat : 16940 (pcs.small) R 16938 16940 15134 0 -1 4194304 1437 822 0 0 7 0 0 0 22 0 1 0 58298904 6737920 948 996147200 134512640 135095119 4294956304 18446744073709551615 134802169 0 0 4096 0 0 0 0 17 0 0 0
/proc/16940/statm: 1645 948 374 142 0 599 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 6580

[startup+0.302736 s]
/proc/loadavg: 2.17 2.07 2.02 4/81 16940
/proc/meminfo: memFree=1515880/2055920 swapFree=4192812/4192956
[pid=16940] ppid=16938 vsize=12640 CPUtime=0.26
/proc/16940/stat : 16940 (pcs.small) R 16938 16940 15134 0 -1 4194304 3175 822 0 0 25 1 0 0 24 0 1 0 58298904 12943360 2165 996147200 134512640 135095119 4294956304 18446744073709551615 134597966 0 0 4096 0 0 0 0 17 0 0 0
/proc/16940/statm: 3160 2165 386 142 0 2114 0
Current children cumulated CPU time (s) 0.26
Current children cumulated vsize (KiB) 12640

[startup+0.70278 s]
/proc/loadavg: 2.17 2.07 2.02 4/81 16940
/proc/meminfo: memFree=1515880/2055920 swapFree=4192812/4192956
[pid=16940] ppid=16938 vsize=13012 CPUtime=0.66
/proc/16940/stat : 16940 (pcs.small) R 16938 16940 15134 0 -1 4194304 3269 822 0 0 65 1 0 0 25 0 1 0 58298904 13324288 2259 996147200 134512640 135095119 4294956304 18446744073709551615 134615496 0 0 4096 0 0 0 0 17 0 0 0
/proc/16940/statm: 3253 2259 387 142 0 2207 0
Current children cumulated CPU time (s) 0.66
Current children cumulated vsize (KiB) 13012

[startup+1.50184 s]
/proc/loadavg: 2.17 2.07 2.02 3/82 16946
/proc/meminfo: memFree=1508256/2055920 swapFree=4192812/4192956
[pid=16940] ppid=16938 vsize=13196 CPUtime=1.45
/proc/16940/stat : 16940 (pcs.small) R 16938 16940 15134 0 -1 4194304 3341 822 0 0 144 1 0 0 25 0 1 0 58298904 13512704 2331 996147200 134512640 135095119 4294956304 18446744073709551615 134642798 0 0 4096 0 0 0 0 17 0 0 0
/proc/16940/statm: 3299 2331 387 142 0 2253 0
Current children cumulated CPU time (s) 1.45
Current children cumulated vsize (KiB) 13196

[startup+3.102 s]
/proc/loadavg: 2.17 2.07 2.02 3/82 16946
/proc/meminfo: memFree=1507488/2055920 swapFree=4192812/4192956
[pid=16940] ppid=16938 vsize=13948 CPUtime=3.05
/proc/16940/stat : 16940 (pcs.small) R 16938 16940 15134 0 -1 4194304 3574 822 0 0 304 1 0 0 25 0 1 0 58298904 14282752 2564 996147200 134512640 135095119 4294956304 18446744073709551615 134642947 0 0 4096 0 0 0 0 17 0 0 0
/proc/16940/statm: 3487 2564 387 142 0 2441 0
Current children cumulated CPU time (s) 3.05
Current children cumulated vsize (KiB) 13948

[startup+6.3013 s]
/proc/loadavg: 2.16 2.07 2.02 3/82 16946
/proc/meminfo: memFree=1505376/2055920 swapFree=4192812/4192956
[pid=16940] ppid=16938 vsize=15612 CPUtime=6.24
/proc/16940/stat : 16940 (pcs.small) R 16938 16940 15134 0 -1 4194304 4101 822 0 0 622 2 0 0 25 0 1 0 58298904 15986688 3091 996147200 134512640 135095119 4294956304 18446744073709551615 134617070 0 0 4096 0 0 0 0 17 0 0 0
/proc/16940/statm: 3903 3091 387 142 0 2857 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 15612

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

[startup+7.90145 s]
/proc/loadavg: 2.14 2.07 2.02 3/82 16946
/proc/meminfo: memFree=1503776/2055920 swapFree=4192812/4192956
[pid=16940] ppid=16938 vsize=16640 CPUtime=7.83
/proc/16940/stat : 16940 (pcs.small) R 16938 16940 15134 0 -1 4194304 4446 822 0 0 781 2 0 0 25 0 1 0 58298904 17039360 3403 996147200 134512640 135095119 4294956304 18446744073709551615 134617043 0 0 4096 0 0 0 0 17 0 0 0
/proc/16940/statm: 4160 3403 387 142 0 3114 0
Current children cumulated CPU time (s) 7.83
Current children cumulated vsize (KiB) 16640

[startup+9.50161 s]
/proc/loadavg: 2.14 2.07 2.02 3/82 16946
/proc/meminfo: memFree=1501664/2055920 swapFree=4192812/4192956
[pid=16940] ppid=16938 vsize=20720 CPUtime=9.42
/proc/16940/stat : 16940 (pcs.small) R 16938 16940 15134 0 -1 4194304 5517 822 0 0 940 2 0 0 25 0 1 0 58298904 21217280 3896 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 0 0 0
/proc/16940/statm: 5180 3896 387 142 0 4134 0
Current children cumulated CPU time (s) 9.42
Current children cumulated vsize (KiB) 20720

[startup+10.3017 s]
/proc/loadavg: 2.14 2.07 2.02 3/82 16946
/proc/meminfo: memFree=1501536/2055920 swapFree=4192812/4192956
[pid=16940] ppid=16938 vsize=20720 CPUtime=10.21
/proc/16940/stat : 16940 (pcs.small) R 16938 16940 15134 0 -1 4194304 5555 822 0 0 1019 2 0 0 25 0 1 0 58298904 21217280 3934 996147200 134512640 135095119 4294956304 18446744073709551615 134555265 0 0 4096 0 0 0 0 17 0 0 0
/proc/16940/statm: 5180 3934 387 142 0 4134 0
Current children cumulated CPU time (s) 10.21
Current children cumulated vsize (KiB) 20720

[startup+10.5017 s]
/proc/loadavg: 2.14 2.07 2.02 3/82 16946
/proc/meminfo: memFree=1501536/2055920 swapFree=4192812/4192956
[pid=16940] ppid=16938 vsize=20720 CPUtime=10.41
/proc/16940/stat : 16940 (pcs.small) R 16938 16940 15134 0 -1 4194304 5583 822 0 0 1039 2 0 0 25 0 1 0 58298904 21217280 3962 996147200 134512640 135095119 4294956304 18446744073709551615 134642608 0 0 4096 0 0 0 0 17 0 0 0
/proc/16940/statm: 5180 3962 387 142 0 4134 0
Current children cumulated CPU time (s) 10.41
Current children cumulated vsize (KiB) 20720

[startup+10.6017 s]
/proc/loadavg: 2.14 2.07 2.02 3/82 16946
/proc/meminfo: memFree=1501536/2055920 swapFree=4192812/4192956
[pid=16940] ppid=16938 vsize=20720 CPUtime=10.51
/proc/16940/stat : 16940 (pcs.small) R 16938 16940 15134 0 -1 4194304 5587 822 0 0 1049 2 0 0 25 0 1 0 58298904 21217280 3966 996147200 134512640 135095119 4294956304 18446744073709551615 134590360 0 0 4096 0 0 0 0 17 0 0 0
/proc/16940/statm: 5180 3966 387 142 0 4134 0
Current children cumulated CPU time (s) 10.51
Current children cumulated vsize (KiB) 20720

Child status: 0
Real time (s): 10.7011
CPU time (s): 10.6374
CPU user time (s): 10.6004
CPU system time (s): 0.036994
CPU usage (%): 99.4048
Max. virtual memory (cumulated for all children) (KiB): 21592

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.6004
system time used= 0.036994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6413
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= 167

runsolver used 0.011998 second user time and 0.034994 second system time

The end

Launcher Data 

Begin job on node61 at 2009-07-16 04:45:54
IDJOB=2074332
IDBENCH=56089
IDSOLVER=733
FILE ID=node61/2074332-1247712354
PBS_JOBID= 9521363
Free space on /tmp= 66380 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-10-10-2.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2074332-1247712354/watcher-2074332-1247712354 -o /tmp/evaluation-result-2074332-1247712354/solver-2074332-1247712354 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 969214369 HOME/instance-2074332-1247712354.xml

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

MD5SUM BENCH= 242a13254f0897334325ad0c36acff97
RANDOM SEED=969214369

node61.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		: 3000.229
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		: 3000.229
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:       1516296 kB
Buffers:        102356 kB
Cached:         282048 kB
SwapCached:          0 kB
Active:         128172 kB
Inactive:       310736 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1516296 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4528 kB
Writeback:           0 kB
Mapped:          75028 kB
Slab:            86000 kB
Committed_AS:   604672 kB
PageTables:       1888 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264884 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66376 MiB
End job on node61 at 2009-07-16 04:46:05