Trace number 2084978

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 3.63645 3.67331

General information on the benchmark

Namecsp/graphColoring/leighton/leighton-25/
normalized-lei450-25a-20.xml
MD5SUM9fd5dc5134c8b962932ab2640e6eee46
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 benchmark0.295954
Satisfiable
(Un)Satisfiability was proved
Number of variables450
Number of constraints8260
Maximum constraint arity2
Maximum domain size20
Number of constraints which are defined in extension0
Number of constraints which are defined in intension8260
Global constraints used (with number of constraints)

Solver Data 

0.00/0.02	c bpsolver version 6.29.2009
0.00/0.03	c converting(HOME/instance-2084978-1247380727)
0.88/0.92	c Converted in 399 ms
0.98/1.04	c solving(HOME/instance-2084978-1247380727,1800000)
0.98/1.04	c solving(HOME/instance-2084978-1247380727,1800000)
3.55/3.67	c before_labeling
3.55/3.67	s UNSATISFIABLE
3.55/3.67	
3.55/3.67	
3.55/3.67	c Time=2714 ms Backtracks=0
3.55/3.67

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-2084978-1247380727/watcher-2084978-1247380727 -o /tmp/evaluation-result-2084978-1247380727/solver-2084978-1247380727 -C 1800 -W 2000 -M 900 HOME/solver HOME/instance-2084978-1247380727 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: 1.92 1.96 1.98 4/74 28889
/proc/meminfo: memFree=1787880/2055920 swapFree=4192812/4192956
[pid=28889] ppid=28887 vsize=18576 CPUtime=0
/proc/28889/stat : 28889 (runsolver) R 28887 28889 28825 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 25136312 19021824 284 996147200 4194304 4302564 548682068528 18446744073709551615 240577473831 0 0 4096 24578 0 0 0 17 1 0 0
/proc/28889/statm: 4644 284 249 26 0 2626 0

[startup+0.0646031 s]
/proc/loadavg: 1.92 1.96 1.98 4/74 28889
/proc/meminfo: memFree=1787880/2055920 swapFree=4192812/4192956
[pid=28889] ppid=28887 vsize=62208 CPUtime=0.05
/proc/28889/stat : 28889 (bprolog) R 28887 28889 28825 0 -1 4194304 1149 0 0 0 2 3 0 0 20 0 1 0 25136312 63700992 862 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/28889/statm: 15552 862 177 144 0 15036 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 62208

[startup+0.101599 s]
/proc/loadavg: 1.92 1.96 1.98 4/74 28889
/proc/meminfo: memFree=1787880/2055920 swapFree=4192812/4192956
[pid=28889] ppid=28887 vsize=62208 CPUtime=0.08
/proc/28889/stat : 28889 (bprolog) R 28887 28889 28825 0 -1 4194304 1151 0 0 0 3 5 0 0 20 0 1 0 25136312 63700992 864 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/28889/statm: 15552 864 177 144 0 15036 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 62208

[startup+0.301616 s]
/proc/loadavg: 1.92 1.96 1.98 4/74 28889
/proc/meminfo: memFree=1787880/2055920 swapFree=4192812/4192956
[pid=28889] ppid=28887 vsize=62208 CPUtime=0.29
/proc/28889/stat : 28889 (bprolog) R 28887 28889 28825 0 -1 4194304 1157 0 0 0 13 16 0 0 22 0 1 0 25136312 63700992 870 996147200 134512640 135105188 4294956096 18446744073709551615 134792100 0 0 4096 2 0 0 0 17 1 0 0
/proc/28889/statm: 15552 870 177 144 0 15036 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 62208

[startup+0.701656 s]
/proc/loadavg: 1.92 1.96 1.98 4/74 28889
/proc/meminfo: memFree=1787880/2055920 swapFree=4192812/4192956
[pid=28889] ppid=28887 vsize=62208 CPUtime=0.69
/proc/28889/stat : 28889 (bprolog) R 28887 28889 28825 0 -1 4194304 1170 0 0 0 31 38 0 0 25 0 1 0 25136312 63700992 883 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/28889/statm: 15552 883 177 144 0 15036 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 62208

[startup+1.50172 s]
/proc/loadavg: 1.92 1.96 1.98 3/75 28890
/proc/meminfo: memFree=1781792/2055920 swapFree=4192812/4192956
[pid=28889] ppid=28887 vsize=70368 CPUtime=1.47
/proc/28889/stat : 28889 (bprolog) R 28887 28889 28825 0 -1 4194304 2437 0 0 0 97 50 0 0 25 0 1 0 25136312 72056832 2147 996147200 134512640 135105188 4294956096 18446744073709551615 134570706 0 0 4096 2 0 0 0 17 1 0 0
/proc/28889/statm: 17592 2147 184 144 0 17076 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 70368

[startup+3.10187 s]
/proc/loadavg: 1.92 1.96 1.98 3/75 28890
/proc/meminfo: memFree=1779168/2055920 swapFree=4192812/4192956
[pid=28889] ppid=28887 vsize=70500 CPUtime=3.06
/proc/28889/stat : 28889 (bprolog) R 28887 28889 28825 0 -1 4194304 2493 0 0 0 256 50 0 0 25 0 1 0 25136312 72192000 2203 996147200 134512640 135105188 4294956096 18446744073709551615 134684669 0 0 4096 2 0 0 0 17 1 0 0
/proc/28889/statm: 17625 2203 186 144 0 17109 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 70500

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

[startup+3.5019 s]
/proc/loadavg: 1.92 1.96 1.98 3/75 28890
/proc/meminfo: memFree=1779168/2055920 swapFree=4192812/4192956
[pid=28889] ppid=28887 vsize=70500 CPUtime=3.45
/proc/28889/stat : 28889 (bprolog) R 28887 28889 28825 0 -1 4194304 2563 0 0 0 295 50 0 0 25 0 1 0 25136312 72192000 2273 996147200 134512640 135105188 4294956096 18446744073709551615 134684276 0 0 4096 2 0 0 0 17 1 0 0
/proc/28889/statm: 17625 2273 186 144 0 17109 0
Current children cumulated CPU time (s) 3.45
Current children cumulated vsize (KiB) 70500

[startup+3.60191 s]
/proc/loadavg: 1.92 1.96 1.98 3/75 28890
/proc/meminfo: memFree=1779168/2055920 swapFree=4192812/4192956
[pid=28889] ppid=28887 vsize=70500 CPUtime=3.55
/proc/28889/stat : 28889 (bprolog) R 28887 28889 28825 0 -1 4194304 2600 0 0 0 305 50 0 0 25 0 1 0 25136312 72192000 2310 996147200 134512640 135105188 4294956096 18446744073709551615 134593568 0 0 4096 2 0 0 0 17 1 0 0
/proc/28889/statm: 17625 2310 186 144 0 17109 0
Current children cumulated CPU time (s) 3.55
Current children cumulated vsize (KiB) 70500

Child status: 0
Real time (s): 3.67331
CPU time (s): 3.63645
CPU user time (s): 3.12752
CPU system time (s): 0.508922
CPU usage (%): 98.9964
Max. virtual memory (cumulated for all children) (KiB): 70500

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.12752
system time used= 0.508922
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2624
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= 116

runsolver used 0.006998 second user time and 0.017997 second system time

The end

Launcher Data 

Begin job on node50 at 2009-07-12 08:38:47
IDJOB=2084978
IDBENCH=58257
IDSOLVER=770
FILE ID=node50/2084978-1247380727
PBS_JOBID= 9507259
Free space on /tmp= 66424 MiB

SOLVER NAME= bpsolver 09
BENCH NAME= CPAI08/csp/graphColoring/leighton/leighton-25/normalized-lei450-25a-20.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2084978-1247380727/watcher-2084978-1247380727 -o /tmp/evaluation-result-2084978-1247380727/solver-2084978-1247380727 -C 1800 -W 2000 -M 900  HOME/solver HOME/instance-2084978-1247380727 1800

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

MD5SUM BENCH= 9fd5dc5134c8b962932ab2640e6eee46
RANDOM SEED=1879823741

node50.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		: 3000.231
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		: 3000.231
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:       1788360 kB
Buffers:         17020 kB
Cached:         113336 kB
SwapCached:          0 kB
Active:         142288 kB
Inactive:        71176 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1788360 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2576 kB
Writeback:           0 kB
Mapped:          94396 kB
Slab:            39156 kB
Committed_AS:   262740 kB
PageTables:       2028 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= 66420 MiB
End job on node50 at 2009-07-12 08:38:51