Trace number 2084670

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
bpsolver 09UNSAT 1.80872 1.82383

General information on the benchmark

Namecsp/graphColoring/register/zeroin/
normalized-zeroin-i-3-20.xml
MD5SUMc26b7a2c6d24201e470a9c6ec39d83ea
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 benchmark0.12298
Satisfiable
(Un)Satisfiability was proved
Number of variables206
Number of constraints3540
Maximum constraint arity2
Maximum domain size20
Number of constraints which are defined in extension0
Number of constraints which are defined in intension3540
Global constraints used (with number of constraints)

Solver Data 

0.00/0.02	c bpsolver version 6.29.2009
0.00/0.02	c converting(HOME/instance-2084670-1247379416)
0.39/0.41	c Converted in 157 ms
0.39/0.45	c solving(HOME/instance-2084670-1247379416,1800000)
0.39/0.45	c solving(HOME/instance-2084670-1247379416,1800000)
1.78/1.82	c before_labeling
1.78/1.82	s UNSATISFIABLE
1.78/1.82	
1.78/1.82	
1.78/1.82	c Time=1400 ms Backtracks=0
1.78/1.82

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-2084670-1247379416/watcher-2084670-1247379416 -o /tmp/evaluation-result-2084670-1247379416/solver-2084670-1247379416 -C 1800 -W 2000 -M 900 HOME/solver HOME/instance-2084670-1247379416 1800 

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: 2.08 2.06 2.09 4/80 25329
/proc/meminfo: memFree=1647200/2055920 swapFree=4192812/4192956
[pid=25329] ppid=25327 vsize=18576 CPUtime=0
/proc/25329/stat : 25329 (runsolver) R 25327 25329 24833 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 25008052 19021824 284 996147200 4194304 4302564 548682068528 18446744073709551615 221236489511 0 0 4096 24578 0 0 0 17 1 0 0
/proc/25329/statm: 4644 284 249 26 0 2626 0

[startup+0.102535 s]
/proc/loadavg: 2.08 2.06 2.09 4/80 25329
/proc/meminfo: memFree=1647200/2055920 swapFree=4192812/4192956
[pid=25329] ppid=25327 vsize=62208 CPUtime=0.09
/proc/25329/stat : 25329 (bprolog) R 25327 25329 24833 0 -1 4194304 1121 0 0 0 4 5 0 0 20 0 1 0 25008052 63700992 834 996147200 134512640 135105188 4294956096 18446744073709551615 134593170 0 0 4096 2 0 0 0 17 1 0 0
/proc/25329/statm: 15552 834 177 144 0 15036 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 62208

[startup+0.201543 s]
/proc/loadavg: 2.08 2.06 2.09 4/80 25329
/proc/meminfo: memFree=1647200/2055920 swapFree=4192812/4192956
[pid=25329] ppid=25327 vsize=62208 CPUtime=0.18
/proc/25329/stat : 25329 (bprolog) R 25327 25329 24833 0 -1 4194304 1124 0 0 0 7 11 0 0 20 0 1 0 25008052 63700992 837 996147200 134512640 135105188 4294956096 18446744073709551615 134669652 0 0 4096 2 0 0 0 17 1 0 0
/proc/25329/statm: 15552 837 177 144 0 15036 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 62208

[startup+0.301557 s]
/proc/loadavg: 2.08 2.06 2.09 4/80 25329
/proc/meminfo: memFree=1647200/2055920 swapFree=4192812/4192956
[pid=25329] ppid=25327 vsize=62208 CPUtime=0.29
/proc/25329/stat : 25329 (bprolog) R 25327 25329 24833 0 -1 4194304 1127 0 0 0 13 16 0 0 21 0 1 0 25008052 63700992 840 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/25329/statm: 15552 840 177 144 0 15036 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 62208

[startup+0.701597 s]
/proc/loadavg: 2.08 2.06 2.09 4/80 25329
/proc/meminfo: memFree=1647200/2055920 swapFree=4192812/4192956
[pid=25329] ppid=25327 vsize=70168 CPUtime=0.69
/proc/25329/stat : 25329 (bprolog) R 25327 25329 24833 0 -1 4194304 1695 0 0 0 46 23 0 0 25 0 1 0 25008052 71852032 1405 996147200 134512640 135105188 4294956096 18446744073709551615 134684308 0 0 4096 2 0 0 0 17 1 0 0
/proc/25329/statm: 17542 1405 186 144 0 17026 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 70168

[startup+1.50168 s]
/proc/loadavg: 2.08 2.06 2.09 3/81 25330
/proc/meminfo: memFree=1642072/2055920 swapFree=4192812/4192956
[pid=25329] ppid=25327 vsize=70168 CPUtime=1.48
/proc/25329/stat : 25329 (bprolog) R 25327 25329 24833 0 -1 4194304 1695 0 0 0 125 23 0 0 25 0 1 0 25008052 71852032 1405 996147200 134512640 135105188 4294956096 18446744073709551615 134684416 0 0 4096 2 0 0 0 17 1 0 0
/proc/25329/statm: 17542 1405 186 144 0 17026 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 70168

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

[startup+1.60169 s]
/proc/loadavg: 2.08 2.06 2.09 3/81 25330
/proc/meminfo: memFree=1642072/2055920 swapFree=4192812/4192956
[pid=25329] ppid=25327 vsize=70168 CPUtime=1.58
/proc/25329/stat : 25329 (bprolog) R 25327 25329 24833 0 -1 4194304 1695 0 0 0 135 23 0 0 25 0 1 0 25008052 71852032 1405 996147200 134512640 135105188 4294956096 18446744073709551615 134604570 0 0 4096 2 0 0 0 17 1 0 0
/proc/25329/statm: 17542 1405 186 144 0 17026 0
Current children cumulated CPU time (s) 1.58
Current children cumulated vsize (KiB) 70168

[startup+1.80172 s]
/proc/loadavg: 2.08 2.06 2.09 3/81 25330
/proc/meminfo: memFree=1642072/2055920 swapFree=4192812/4192956
[pid=25329] ppid=25327 vsize=70168 CPUtime=1.78
/proc/25329/stat : 25329 (bprolog) R 25327 25329 24833 0 -1 4194304 1724 0 0 0 155 23 0 0 25 0 1 0 25008052 71852032 1434 996147200 134512640 135105188 4294956096 18446744073709551615 134684282 0 0 4096 2 0 0 0 17 1 0 0
/proc/25329/statm: 17542 1434 186 144 0 17026 0
Current children cumulated CPU time (s) 1.78
Current children cumulated vsize (KiB) 70168

Child status: 0
Real time (s): 1.82383
CPU time (s): 1.80872
CPU user time (s): 1.57376
CPU system time (s): 0.234964
CPU usage (%): 99.1719
Max. virtual memory (cumulated for all children) (KiB): 70168

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.57376
system time used= 0.234964
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1734
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= 3
involuntary context switches= 68

runsolver used 0.006998 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node21 at 2009-07-12 08:16:56
IDJOB=2084670
IDBENCH=58100
IDSOLVER=770
FILE ID=node21/2084670-1247379416
PBS_JOBID= 9507188
Free space on /tmp= 66404 MiB

SOLVER NAME= bpsolver 09
BENCH NAME= CPAI08/csp/graphColoring/register/zeroin/normalized-zeroin-i-3-20.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2084670-1247379416/watcher-2084670-1247379416 -o /tmp/evaluation-result-2084670-1247379416/solver-2084670-1247379416 -C 1800 -W 2000 -M 900  HOME/solver HOME/instance-2084670-1247379416 1800

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

MD5SUM BENCH= c26b7a2c6d24201e470a9c6ec39d83ea
RANDOM SEED=1837253104

node21.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:       1647680 kB
Buffers:          6916 kB
Cached:          61764 kB
SwapCached:          0 kB
Active:         336284 kB
Inactive:        19884 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1647680 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1736 kB
Writeback:           0 kB
Mapped:         305304 kB
Slab:            36736 kB
Committed_AS:   914392 kB
PageTables:       2300 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= 66404 MiB
End job on node21 at 2009-07-12 08:16:58