Trace number 2084967

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 3.39948 3.41651

General information on the benchmark

Namecsp/graphColoring/leighton/leighton-25/
normalized-lei450-25a-23.xml
MD5SUMdb98c53488e7b2aca62f1c75d3774cd9
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 size23
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 

0.19/0.21	c bpsolver version 6.29.2009
0.19/0.21	c converting(HOME/instance-2084967-1247380619)
0.78/0.86	c Converted in 391 ms
0.89/0.96	c solving(HOME/instance-2084967-1247380619,1800000)
0.89/0.96	c solving(HOME/instance-2084967-1247380619,1800000)
3.38/3.41	c before_labeling
3.38/3.41	s UNSATISFIABLE
3.38/3.41	
3.38/3.41	
3.38/3.41	c Time=2530 ms Backtracks=0
3.38/3.41

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-2084967-1247380619/watcher-2084967-1247380619 -o /tmp/evaluation-result-2084967-1247380619/solver-2084967-1247380619 -C 1800 -W 2000 -M 900 HOME/solver HOME/instance-2084967-1247380619 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: 1.94 1.99 1.99 4/81 25951
/proc/meminfo: memFree=1876040/2055920 swapFree=4192812/4192956
[pid=25951] ppid=25949 vsize=7000 CPUtime=0
/proc/25951/stat : 25951 (bprolog) R 25949 25951 25645 0 -1 4194304 600 0 0 0 0 0 0 0 18 0 1 0 25126342 7168000 318 996147200 134512640 135105188 4294956096 18446744073709551615 134530912 0 0 4096 0 0 0 0 17 0 0 0
/proc/25951/statm: 1750 326 72 144 0 1234 0

[startup+0.0276721 s]
/proc/loadavg: 1.94 1.99 1.99 4/81 25951
/proc/meminfo: memFree=1876040/2055920 swapFree=4192812/4192956
[pid=25951] ppid=25949 vsize=62208 CPUtime=0.01
/proc/25951/stat : 25951 (bprolog) R 25949 25951 25645 0 -1 4194304 1103 0 0 0 1 0 0 0 18 0 1 0 25126342 63700992 816 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 0 0 0
/proc/25951/statm: 15552 816 174 144 0 15036 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 62208

[startup+0.101685 s]
/proc/loadavg: 1.94 1.99 1.99 4/81 25951
/proc/meminfo: memFree=1876040/2055920 swapFree=4192812/4192956
[pid=25951] ppid=25949 vsize=62208 CPUtime=0.09
/proc/25951/stat : 25951 (bprolog) R 25949 25951 25645 0 -1 4194304 1152 0 0 0 4 5 0 0 18 0 1 0 25126342 63700992 865 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 0 0 0
/proc/25951/statm: 15552 865 177 144 0 15036 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 62208

[startup+0.301708 s]
/proc/loadavg: 1.94 1.99 1.99 4/81 25951
/proc/meminfo: memFree=1876040/2055920 swapFree=4192812/4192956
[pid=25951] ppid=25949 vsize=62208 CPUtime=0.29
/proc/25951/stat : 25951 (bprolog) R 25949 25951 25645 0 -1 4194304 1159 0 0 0 13 16 0 0 19 0 1 0 25126342 63700992 872 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 0 0 0
/proc/25951/statm: 15552 872 177 144 0 15036 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 62208

[startup+0.701753 s]
/proc/loadavg: 1.94 1.99 1.99 4/81 25951
/proc/meminfo: memFree=1876040/2055920 swapFree=4192812/4192956
[pid=25951] ppid=25949 vsize=62208 CPUtime=0.68
/proc/25951/stat : 25951 (bprolog) R 25949 25951 25645 0 -1 4194304 1171 0 0 0 32 36 0 0 23 0 1 0 25126342 63700992 884 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 0 0 0
/proc/25951/statm: 15552 884 177 144 0 15036 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 62208

[startup+1.50185 s]
/proc/loadavg: 1.94 1.99 1.99 3/82 25952
/proc/meminfo: memFree=1867712/2055920 swapFree=4192812/4192956
[pid=25951] ppid=25949 vsize=70500 CPUtime=1.48
/proc/25951/stat : 25951 (bprolog) R 25949 25951 25645 0 -1 4194304 2483 0 0 0 102 46 0 0 25 0 1 0 25126342 72192000 2193 996147200 134512640 135105188 4294956096 18446744073709551615 134670853 0 0 4096 2 0 0 0 17 0 0 0
/proc/25951/statm: 17625 2193 185 144 0 17109 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 70500

[startup+3.10103 s]
/proc/loadavg: 1.95 1.99 1.99 3/82 25952
/proc/meminfo: memFree=1867264/2055920 swapFree=4192812/4192956
[pid=25951] ppid=25949 vsize=70500 CPUtime=3.08
/proc/25951/stat : 25951 (bprolog) R 25949 25951 25645 0 -1 4194304 2503 0 0 0 262 46 0 0 25 0 1 0 25126342 72192000 2213 996147200 134512640 135105188 4294956096 18446744073709551615 134684454 0 0 4096 2 0 0 0 17 0 0 0
/proc/25951/statm: 17625 2213 186 144 0 17109 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 70500

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

[startup+3.30606 s]
/proc/loadavg: 1.95 1.99 1.99 3/82 25952
/proc/meminfo: memFree=1867072/2055920 swapFree=4192812/4192956
[pid=25951] ppid=25949 vsize=70500 CPUtime=3.28
/proc/25951/stat : 25951 (bprolog) R 25949 25951 25645 0 -1 4194304 2579 0 0 0 282 46 0 0 25 0 1 0 25126342 72192000 2289 996147200 134512640 135105188 4294956096 18446744073709551615 134591799 0 0 4096 2 0 0 0 17 0 0 0
/proc/25951/statm: 17625 2289 186 144 0 17109 0
Current children cumulated CPU time (s) 3.28
Current children cumulated vsize (KiB) 70500

[startup+3.40107 s]
/proc/loadavg: 1.95 1.99 1.99 3/82 25952
/proc/meminfo: memFree=1867072/2055920 swapFree=4192812/4192956
[pid=25951] ppid=25949 vsize=70500 CPUtime=3.38
/proc/25951/stat : 25951 (bprolog) R 25949 25951 25645 0 -1 4194304 2616 0 0 0 292 46 0 0 25 0 1 0 25126342 72192000 2326 996147200 134512640 135105188 4294956096 18446744073709551615 134800684 0 0 4096 2 0 0 0 17 0 0 0
/proc/25951/statm: 17625 2326 186 144 0 17109 0
Current children cumulated CPU time (s) 3.38
Current children cumulated vsize (KiB) 70500

Child status: 0
Real time (s): 3.41651
CPU time (s): 3.39948
CPU user time (s): 2.93455
CPU system time (s): 0.464929
CPU usage (%): 99.5017
Max. virtual memory (cumulated for all children) (KiB): 70500

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.93455
system time used= 0.464929
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= 2
involuntary context switches= 136

runsolver used 0.002999 second user time and 0.018997 second system time

The end

Launcher Data 

Begin job on node75 at 2009-07-12 08:36:59
IDJOB=2084967
IDBENCH=58255
IDSOLVER=770
FILE ID=node75/2084967-1247380619
PBS_JOBID= 9507193
Free space on /tmp= 66316 MiB

SOLVER NAME= bpsolver 09
BENCH NAME= CPAI08/csp/graphColoring/leighton/leighton-25/normalized-lei450-25a-23.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2084967-1247380619/watcher-2084967-1247380619 -o /tmp/evaluation-result-2084967-1247380619/solver-2084967-1247380619 -C 1800 -W 2000 -M 900  HOME/solver HOME/instance-2084967-1247380619 1800

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

MD5SUM BENCH= db98c53488e7b2aca62f1c75d3774cd9
RANDOM SEED=1612631387

node75.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		: 3000.232
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		: 3000.232
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1876520 kB
Buffers:          6752 kB
Cached:          69204 kB
SwapCached:          0 kB
Active:          93404 kB
Inactive:        35920 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1876520 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2304 kB
Writeback:           0 kB
Mapped:          73848 kB
Slab:            35144 kB
Committed_AS:   277408 kB
PageTables:       1944 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= 66316 MiB
End job on node75 at 2009-07-12 08:37:02