Trace number 2074310

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 7.93779 8.01984

DiagnosticValue
ASSIGNMENTS31478

General information on the benchmark

Namecsp/
chessboardColoration/normalized-cc-9-9-2.xml
MD5SUMce08ce1390ffd10aa41a85c876acf89f
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 benchmark1.12383
Satisfiable
(Un)Satisfiability was proved
Number of variables81
Number of constraints1296
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1296
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.18/0.21	c Seed is 1808797352
0.18/0.21	c Constructing HOME/instance-2074310-1247712338.xml  with 23328 constraints
0.18/0.21	c Solving 31478 backtracks 16 restarts
7.90/8.01	s UNSATISFIABLE
7.90/8.01	d ASSIGNMENTS 31478

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-2074310-1247712338/watcher-2074310-1247712338 -o /tmp/evaluation-result-2074310-1247712338/solver-2074310-1247712338 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1808797352 HOME/instance-2074310-1247712338.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: 2.05 2.07 2.02 4/82 12958
/proc/meminfo: memFree=1472312/2055920 swapFree=4192812/4192956
[pid=12958] ppid=12956 vsize=5356 CPUtime=0
/proc/12958/stat : 12958 (pcssolve) R 12956 12958 10627 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 58300799 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 252429527711 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/12958/statm: 1339 241 200 169 0 50 0
[pid=12959] ppid=12958 vsize=3676 CPUtime=0
/proc/12959/stat : 12959 (fgrep) R 12958 12958 10627 0 -1 4194304 147 0 0 0 0 0 0 0 22 0 1 0 58300799 3764224 114 996147200 4194304 4274172 548682068976 18446744073709551615 252429403808 0 0 4096 0 0 0 0 17 1 0 0
/proc/12959/statm: 919 114 86 19 0 43 0
[pid=12960] ppid=12958 vsize=5356 CPUtime=0
/proc/12960/stat : 12960 (pcssolve) R 12958 12958 10627 0 -1 4194368 0 0 0 0 0 0 0 0 21 0 1 0 58300800 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 252429527711 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/12960/statm: 1339 241 200 169 0 50 0

[startup+0.067734 s]
/proc/loadavg: 2.05 2.07 2.02 4/82 12958
/proc/meminfo: memFree=1472312/2055920 swapFree=4192812/4192956
[pid=12958] ppid=12956 vsize=5632 CPUtime=0.04
/proc/12958/stat : 12958 (pcs.small) R 12956 12958 10627 0 -1 4194304 1158 822 0 0 4 0 0 0 18 0 1 0 58300799 5767168 734 996147200 134512640 135095119 4294956304 18446744073709551615 10161758 0 0 4096 0 0 0 0 17 1 0 0
/proc/12958/statm: 1408 734 374 142 0 362 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 5632

[startup+0.101736 s]
/proc/loadavg: 2.05 2.07 2.02 4/82 12958
/proc/meminfo: memFree=1472312/2055920 swapFree=4192812/4192956
[pid=12958] ppid=12956 vsize=6604 CPUtime=0.07
/proc/12958/stat : 12958 (pcs.small) R 12956 12958 10627 0 -1 4194304 1427 822 0 0 7 0 0 0 18 0 1 0 58300799 6762496 938 996147200 134512640 135095119 4294956304 18446744073709551615 10161758 0 0 4096 0 0 0 0 17 1 0 0
/proc/12958/statm: 1651 938 374 142 0 605 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 6604

[startup+0.301759 s]
/proc/loadavg: 2.05 2.07 2.02 4/82 12958
/proc/meminfo: memFree=1472312/2055920 swapFree=4192812/4192956
[pid=12958] ppid=12956 vsize=9476 CPUtime=0.28
/proc/12958/stat : 12958 (pcs.small) R 12956 12958 10627 0 -1 4194304 2241 822 0 0 27 1 0 0 19 0 1 0 58300799 9703424 1600 996147200 134512640 135095119 4294956304 18446744073709551615 134642723 0 0 4096 0 0 0 0 17 1 0 0
/proc/12958/statm: 2369 1600 387 142 0 1323 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 9476

[startup+0.701796 s]
/proc/loadavg: 2.05 2.07 2.02 4/82 12958
/proc/meminfo: memFree=1472312/2055920 swapFree=4192812/4192956
[pid=12958] ppid=12956 vsize=9560 CPUtime=0.67
/proc/12958/stat : 12958 (pcs.small) R 12956 12958 10627 0 -1 4194304 2291 822 0 0 66 1 0 0 23 0 1 0 58300799 9789440 1650 996147200 134512640 135095119 4294956304 18446744073709551615 134582873 0 0 4096 0 0 0 0 17 1 0 0
/proc/12958/statm: 2390 1650 387 142 0 1344 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 9560

[startup+1.50187 s]
/proc/loadavg: 2.05 2.07 2.02 3/83 12964
/proc/meminfo: memFree=1466864/2055920 swapFree=4192812/4192956
[pid=12958] ppid=12956 vsize=9940 CPUtime=1.46
/proc/12958/stat : 12958 (pcs.small) R 12956 12958 10627 0 -1 4194304 2410 822 0 0 145 1 0 0 25 0 1 0 58300799 10178560 1769 996147200 134512640 135095119 4294956304 18446744073709551615 134839484 0 0 4096 0 0 0 0 17 1 0 0
/proc/12958/statm: 2485 1769 387 142 0 1439 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 9940

[startup+3.10103 s]
/proc/loadavg: 2.05 2.07 2.02 3/83 12964
/proc/meminfo: memFree=1465968/2055920 swapFree=4192812/4192956
[pid=12958] ppid=12956 vsize=12328 CPUtime=3.04
/proc/12958/stat : 12958 (pcs.small) R 12956 12958 10627 0 -1 4194304 3076 822 0 0 303 1 0 0 25 0 1 0 58300799 12623872 2145 996147200 134512640 135095119 4294956304 18446744073709551615 134642693 0 0 4096 0 0 0 0 17 1 0 0
/proc/12958/statm: 3082 2145 387 142 0 2036 0
Current children cumulated CPU time (s) 3.04
Current children cumulated vsize (KiB) 12328

[startup+6.30135 s]
/proc/loadavg: 2.05 2.07 2.02 3/83 12964
/proc/meminfo: memFree=1463728/2055920 swapFree=4192812/4192956
[pid=12958] ppid=12956 vsize=13728 CPUtime=6.21
/proc/12958/stat : 12958 (pcs.small) R 12956 12958 10627 0 -1 4194304 3509 822 0 0 620 1 0 0 25 0 1 0 58300799 14057472 2578 996147200 134512640 135095119 4294956304 18446744073709551615 134589562 0 0 4096 0 0 0 0 17 1 0 0
/proc/12958/statm: 3432 2578 387 142 0 2386 0
Current children cumulated CPU time (s) 6.21
Current children cumulated vsize (KiB) 13728

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

[startup+7.10243 s]
/proc/loadavg: 2.05 2.07 2.02 3/83 12964
/proc/meminfo: memFree=1463024/2055920 swapFree=4192812/4192956
[pid=12958] ppid=12956 vsize=14148 CPUtime=7.01
/proc/12958/stat : 12958 (pcs.small) R 12956 12958 10627 0 -1 4194304 3655 822 0 0 699 2 0 0 25 0 1 0 58300799 14487552 2724 996147200 134512640 135095119 4294956304 18446744073709551615 134589541 0 0 4096 0 0 0 0 17 1 0 0
/proc/12958/statm: 3537 2724 387 142 0 2491 0
Current children cumulated CPU time (s) 7.01
Current children cumulated vsize (KiB) 14148

[startup+7.50247 s]
/proc/loadavg: 2.05 2.07 2.02 3/83 12964
/proc/meminfo: memFree=1463024/2055920 swapFree=4192812/4192956
[pid=12958] ppid=12956 vsize=14400 CPUtime=7.41
/proc/12958/stat : 12958 (pcs.small) R 12956 12958 10627 0 -1 4194304 3725 822 0 0 739 2 0 0 25 0 1 0 58300799 14745600 2794 996147200 134512640 135095119 4294956304 18446744073709551615 134616767 0 0 4096 0 0 0 0 17 1 0 0
/proc/12958/statm: 3600 2794 387 142 0 2554 0
Current children cumulated CPU time (s) 7.41
Current children cumulated vsize (KiB) 14400

[startup+7.90251 s]
/proc/loadavg: 2.05 2.07 2.02 3/83 12964
/proc/meminfo: memFree=1462256/2055920 swapFree=4192812/4192956
[pid=12958] ppid=12956 vsize=14568 CPUtime=7.81
/proc/12958/stat : 12958 (pcs.small) R 12956 12958 10627 0 -1 4194304 3798 822 0 0 779 2 0 0 25 0 1 0 58300799 14917632 2867 996147200 134512640 135095119 4294956304 18446744073709551615 134590383 0 0 4096 0 0 0 0 17 1 0 0
/proc/12958/statm: 3642 2867 387 142 0 2596 0
Current children cumulated CPU time (s) 7.81
Current children cumulated vsize (KiB) 14568

[startup+8.00254 s]
/proc/loadavg: 2.05 2.07 2.02 3/83 12964
/proc/meminfo: memFree=1462256/2055920 swapFree=4192812/4192956
[pid=12958] ppid=12956 vsize=12600 CPUtime=7.9
/proc/12958/stat : 12958 (pcs.small) R 12956 12958 10627 0 -1 4194304 3811 822 0 0 788 2 0 0 25 0 1 0 58300799 12902400 2451 996147200 134512640 135095119 4294956304 18446744073709551615 10125381 0 0 4096 0 0 0 0 17 1 0 0
/proc/12958/statm: 3150 2451 387 142 0 2104 0
Current children cumulated CPU time (s) 7.9
Current children cumulated vsize (KiB) 12600

Child status: 0
Real time (s): 8.01984
CPU time (s): 7.93779
CPU user time (s): 7.9088
CPU system time (s): 0.028995
CPU usage (%): 98.9769
Max. virtual memory (cumulated for all children) (KiB): 14568

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 7.9088
system time used= 0.028995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4635
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= 342

runsolver used 0.007998 second user time and 0.037994 second system time

The end

Launcher Data 

Begin job on node12 at 2009-07-16 04:45:38
IDJOB=2074310
IDBENCH=56086
IDSOLVER=733
FILE ID=node12/2074310-1247712338
PBS_JOBID= 9521380
Free space on /tmp= 66268 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-9-9-2.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2074310-1247712338/watcher-2074310-1247712338 -o /tmp/evaluation-result-2074310-1247712338/solver-2074310-1247712338 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1808797352 HOME/instance-2074310-1247712338.xml

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

MD5SUM BENCH= ce08ce1390ffd10aa41a85c876acf89f
RANDOM SEED=1808797352

node12.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		: 3000.240
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		: 3000.240
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:       1472728 kB
Buffers:         77160 kB
Cached:         371164 kB
SwapCached:          0 kB
Active:         127740 kB
Inactive:       373884 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1472728 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1932 kB
Writeback:           0 kB
Mapped:          73712 kB
Slab:            66600 kB
Committed_AS:   579224 kB
PageTables:       1892 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= 66268 MiB
End job on node12 at 2009-07-16 04:45:46