Trace number 2084956

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 13.462 13.5903

General information on the benchmark

Namecsp/graphColoring/leighton/leighton-25/
normalized-lei450-25c-20.xml
MD5SUM650dc90691e9a24f684efb63d3ecdfee
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 benchmark0.574911
Satisfiable
(Un)Satisfiability was proved
Number of variables450
Number of constraints17343
Maximum constraint arity2
Maximum domain size20
Number of constraints which are defined in extension0
Number of constraints which are defined in intension17343
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-2084956-1247380544)
1.77/1.89	c Converted in 859 ms
2.07/2.11	c solving(HOME/instance-2084956-1247380544,1800000)
2.07/2.11	c solving(HOME/instance-2084956-1247380544,1800000)
13.37/13.58	c before_labeling
13.37/13.58	s UNSATISFIABLE
13.37/13.58	
13.37/13.58	
13.37/13.58	c Time=11573 ms Backtracks=0
13.37/13.58

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-2084956-1247380544/watcher-2084956-1247380544 -o /tmp/evaluation-result-2084956-1247380544/solver-2084956-1247380544 -C 1800 -W 2000 -M 900 HOME/solver HOME/instance-2084956-1247380544 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: 1.99 2.00 2.03 4/80 29575
/proc/meminfo: memFree=1835136/2055920 swapFree=4192812/4192956
[pid=29575] ppid=29573 vsize=7000 CPUtime=0
/proc/29575/stat : 29575 (bprolog) R 29573 29575 29511 0 -1 4194304 473 0 0 0 0 0 0 0 20 0 1 0 25118562 7168000 191 996147200 134512640 135105188 4294956096 18446744073709551615 134530912 0 0 4096 0 0 0 0 17 1 0 0
/proc/29575/statm: 1750 191 72 144 0 1234 0

[startup+0.21174 s]
/proc/loadavg: 1.99 2.00 2.03 4/80 29575
/proc/meminfo: memFree=1835136/2055920 swapFree=4192812/4192956
[pid=29575] ppid=29573 vsize=62208 CPUtime=0.2
/proc/29575/stat : 29575 (bprolog) R 29573 29575 29511 0 -1 4194304 1155 0 0 0 10 10 0 0 21 0 1 0 25118562 63700992 868 996147200 134512640 135105188 4294956096 18446744073709551615 134778845 0 0 4096 2 0 0 0 17 1 0 0
/proc/29575/statm: 15552 868 177 144 0 15036 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 62208

[startup+0.301757 s]
/proc/loadavg: 1.99 2.00 2.03 4/80 29575
/proc/meminfo: memFree=1835136/2055920 swapFree=4192812/4192956
[pid=29575] ppid=29573 vsize=62208 CPUtime=0.29
/proc/29575/stat : 29575 (bprolog) R 29573 29575 29511 0 -1 4194304 1158 0 0 0 14 15 0 0 21 0 1 0 25118562 63700992 871 996147200 134512640 135105188 4294956096 18446744073709551615 134573056 0 0 4096 2 0 0 0 17 1 0 0
/proc/29575/statm: 15552 871 177 144 0 15036 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 62208

[startup+0.401778 s]
/proc/loadavg: 1.99 2.00 2.03 4/80 29575
/proc/meminfo: memFree=1835136/2055920 swapFree=4192812/4192956
[pid=29575] ppid=29573 vsize=62208 CPUtime=0.38
/proc/29575/stat : 29575 (bprolog) R 29573 29575 29511 0 -1 4194304 1161 0 0 0 18 20 0 0 22 0 1 0 25118562 63700992 874 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/29575/statm: 15552 874 177 144 0 15036 0
Current children cumulated CPU time (s) 0.38
Current children cumulated vsize (KiB) 62208

[startup+0.701833 s]
/proc/loadavg: 1.99 2.00 2.03 4/80 29575
/proc/meminfo: memFree=1835136/2055920 swapFree=4192812/4192956
[pid=29575] ppid=29573 vsize=62208 CPUtime=0.68
/proc/29575/stat : 29575 (bprolog) R 29573 29575 29511 0 -1 4194304 1169 0 0 0 32 36 0 0 25 0 1 0 25118562 63700992 882 996147200 134512640 135105188 4294956096 18446744073709551615 134559819 0 0 4096 2 0 0 0 17 1 0 0
/proc/29575/statm: 15552 882 177 144 0 15036 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 62208

[startup+1.50199 s]
/proc/loadavg: 1.99 2.00 2.03 3/81 29576
/proc/meminfo: memFree=1831672/2055920 swapFree=4192812/4192956
[pid=29575] ppid=29573 vsize=62208 CPUtime=1.48
/proc/29575/stat : 29575 (bprolog) R 29573 29575 29511 0 -1 4194304 1192 0 0 0 69 79 0 0 25 0 1 0 25118562 63700992 905 996147200 134512640 135105188 4294956096 18446744073709551615 4294960144 0 0 4096 2 0 0 0 17 1 0 0
/proc/29575/statm: 15552 905 177 144 0 15036 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 62208

[startup+3.10128 s]
/proc/loadavg: 1.99 2.00 2.03 3/81 29576
/proc/meminfo: memFree=1820856/2055920 swapFree=4192812/4192956
[pid=29575] ppid=29573 vsize=74620 CPUtime=3.06
/proc/29575/stat : 29575 (bprolog) R 29573 29575 29511 0 -1 4194304 3783 0 0 0 205 101 0 0 25 0 1 0 25118562 76410880 3491 996147200 134512640 135105188 4294956096 18446744073709551615 134570706 0 0 4096 2 0 0 0 17 1 0 0
/proc/29575/statm: 18655 3491 184 144 0 18139 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 74620

[startup+6.30189 s]
/proc/loadavg: 1.99 2.00 2.03 3/81 29576
/proc/meminfo: memFree=1820344/2055920 swapFree=4192812/4192956
[pid=29575] ppid=29573 vsize=74880 CPUtime=6.23
/proc/29575/stat : 29575 (bprolog) R 29573 29575 29511 0 -1 4194304 3908 0 0 0 522 101 0 0 25 0 1 0 25118562 76677120 3583 996147200 134512640 135105188 4294956096 18446744073709551615 134684258 0 0 4096 2 0 0 0 17 1 0 0
/proc/29575/statm: 18720 3583 186 144 0 18204 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 74880

[startup+12.7021 s]
/proc/loadavg: 1.99 2.00 2.03 3/81 29576
/proc/meminfo: memFree=1819832/2055920 swapFree=4192812/4192956
[pid=29575] ppid=29573 vsize=74880 CPUtime=12.57
/proc/29575/stat : 29575 (bprolog) R 29573 29575 29511 0 -1 4194304 4108 0 0 0 1156 101 0 0 25 0 1 0 25118562 76677120 3783 996147200 134512640 135105188 4294956096 18446744073709551615 134684308 0 0 4096 2 0 0 0 17 1 0 0
/proc/29575/statm: 18720 3783 186 144 0 18204 0
Current children cumulated CPU time (s) 12.57
Current children cumulated vsize (KiB) 74880

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

[startup+12.9021 s]
/proc/loadavg: 1.99 2.00 2.03 3/81 29576
/proc/meminfo: memFree=1819832/2055920 swapFree=4192812/4192956
[pid=29575] ppid=29573 vsize=74880 CPUtime=12.77
/proc/29575/stat : 29575 (bprolog) R 29573 29575 29511 0 -1 4194304 4139 0 0 0 1176 101 0 0 25 0 1 0 25118562 76677120 3814 996147200 134512640 135105188 4294956096 18446744073709551615 134566213 0 0 4096 2 0 0 0 17 1 0 0
/proc/29575/statm: 18720 3814 186 144 0 18204 0
Current children cumulated CPU time (s) 12.77
Current children cumulated vsize (KiB) 74880

[startup+13.3012 s]
/proc/loadavg: 1.99 2.00 2.03 3/81 29576
/proc/meminfo: memFree=1819320/2055920 swapFree=4192812/4192956
[pid=29575] ppid=29573 vsize=74880 CPUtime=13.17
/proc/29575/stat : 29575 (bprolog) R 29573 29575 29511 0 -1 4194304 4202 0 0 0 1216 101 0 0 25 0 1 0 25118562 76677120 3877 996147200 134512640 135105188 4294956096 18446744073709551615 134800783 0 0 4096 2 0 0 0 17 1 0 0
/proc/29575/statm: 18720 3877 186 144 0 18204 0
Current children cumulated CPU time (s) 13.17
Current children cumulated vsize (KiB) 74880

[startup+13.5013 s]
/proc/loadavg: 1.99 2.00 2.03 3/81 29576
/proc/meminfo: memFree=1819320/2055920 swapFree=4192812/4192956
[pid=29575] ppid=29573 vsize=74880 CPUtime=13.37
/proc/29575/stat : 29575 (bprolog) R 29573 29575 29511 0 -1 4194304 4235 0 0 0 1236 101 0 0 25 0 1 0 25118562 76677120 3910 996147200 134512640 135105188 4294956096 18446744073709551615 134684260 0 0 4096 2 0 0 0 17 1 0 0
/proc/29575/statm: 18720 3910 186 144 0 18204 0
Current children cumulated CPU time (s) 13.37
Current children cumulated vsize (KiB) 74880

Child status: 0
Real time (s): 13.5903
CPU time (s): 13.462
CPU user time (s): 12.4461
CPU system time (s): 1.01584
CPU usage (%): 99.0558
Max. virtual memory (cumulated for all children) (KiB): 74880

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.4461
system time used= 1.01585
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4249
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= 4
involuntary context switches= 564

runsolver used 0.018997 second user time and 0.044993 second system time

The end

Launcher Data 

Begin job on node37 at 2009-07-12 08:35:44
IDJOB=2084956
IDBENCH=58254
IDSOLVER=770
FILE ID=node37/2084956-1247380544
PBS_JOBID= 9507257
Free space on /tmp= 66428 MiB

SOLVER NAME= bpsolver 09
BENCH NAME= CPAI08/csp/graphColoring/leighton/leighton-25/normalized-lei450-25c-20.xml
COMMAND LINE= HOME/solver BENCHNAMENOEXT TIMEOUT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2084956-1247380544/watcher-2084956-1247380544 -o /tmp/evaluation-result-2084956-1247380544/solver-2084956-1247380544 -C 1800 -W 2000 -M 900  HOME/solver HOME/instance-2084956-1247380544 1800

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

MD5SUM BENCH= 650dc90691e9a24f684efb63d3ecdfee
RANDOM SEED=780937776

node37.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		: 3000.260
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		: 3000.260
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:       1835680 kB
Buffers:          5076 kB
Cached:          67888 kB
SwapCached:          0 kB
Active:         141320 kB
Inactive:        30532 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1835680 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3644 kB
Writeback:           0 kB
Mapped:         116732 kB
Slab:            33744 kB
Committed_AS:   954648 kB
PageTables:       1940 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= 66424 MiB
End job on node37 at 2009-07-12 08:35:58