Trace number 204046

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, and are wall clock time (not CPU 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
VALCSP 3.0? (MO) 2.40163 2.41274

General information on the benchmark

Namedomino/
domino-5000-5000.xml
MD5SUM18de54b00f9f9844eda77aa609528237
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.243961
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables5000
Number of constraints5000
Maximum constraint arity2
Maximum domain size5000
Number of constraints which are defined in extension0
Number of constraints which are defined in intension5000
Global constraints used (with number of constraints)

Solver Data (download as text)



Verifier Data (download as text)




ERROR: Unexpected answer ! (SAT/UNSAT expected)
Got answer: 



Watcher Data (download as text)




runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node38/watcher-204046-1168165215 -o ROOT/results/node38/solver-204046-1168165215 -C 1800 -M 900 /tmp/evaluation/204046-1168165215/VALCSP /tmp/evaluation/204046-1168165215/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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

/proc/loadavg: 0.58 1.28 1.57 4/75 13043
/proc/meminfo: memFree=1671624/2055920 swapFree=4192812/4192956
[pid=13042] ppid=13035 vsize=4000 CPUtime=0
/proc/13042/stat : 13042 (VALCSP) R 13035 13042 12940 0 -1 4194304 628 0 0 0 0 0 0 0 18 0 1 0 164921695 4096000 606 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 9041531 0 0 4096 0 0 0 0 17 1 0 0
/proc/13042/statm: 1036 613 63 8 0 708 0

[startup+0.10346 s]
/proc/loadavg: 0.58 1.28 1.57 4/75 13043
/proc/meminfo: memFree=1671624/2055920 swapFree=4192812/4192956
[pid=13042] ppid=13035 vsize=78912 CPUtime=0.09
/proc/13042/stat : 13042 (VALCSP) R 13035 13042 12940 0 -1 4194304 17520 0 0 0 1 8 0 0 18 0 1 0 164921695 80805888 17498 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134534827 0 0 4096 0 0 0 0 17 1 0 0
/proc/13042/statm: 19765 17509 63 8 0 19437 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 78912

[startup+0.511535 s]
/proc/loadavg: 0.58 1.28 1.57 4/75 13043
/proc/meminfo: memFree=1671624/2055920 swapFree=4192812/4192956
[pid=13042] ppid=13035 vsize=368316 CPUtime=0.5
/proc/13042/stat : 13042 (VALCSP) R 13035 13042 12940 0 -1 4194304 84553 0 0 0 12 38 0 0 21 0 1 0 164921695 377155584 84532 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 9041531 0 0 4096 0 0 0 0 17 1 0 0
/proc/13042/statm: 92079 84542 63 8 0 91751 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 368316

[startup+1.33268 s]
/proc/loadavg: 0.58 1.28 1.57 3/81 13061
/proc/meminfo: memFree=908120/2055920 swapFree=4192812/4192956
[pid=13042] ppid=13035 vsize=882256 CPUtime=1.32
/proc/13042/stat : 13042 (VALCSP) R 13035 13042 12940 0 -1 4194304 213059 0 0 0 40 92 0 0 25 0 1 0 164921695 903430144 213037 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530192 0 0 4096 0 0 0 0 17 1 0 0
/proc/13042/statm: 220564 213037 65 8 0 220236 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 882256



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+2.25086 s]
/proc/loadavg: 0.58 1.28 1.57 5/81 13061
/proc/meminfo: memFree=691928/2055920 swapFree=4192812/4192956
[pid=13042] ppid=13035 vsize=963772 CPUtime=2.24
/proc/13042/stat : 13042 (VALCSP) R 13035 13042 12940 0 -1 4194304 233436 0 0 0 123 101 0 0 25 0 1 0 164921695 986902528 233414 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134540012 0 0 4096 0 0 0 0 17 1 0 0
/proc/13042/statm: 240943 233422 65 8 0 240615 0
Current children cumulated CPU time (s) 2.24
Current children cumulated vsize (KiB) 963772

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Child ended because it received signal 15 (SIGTERM)
Real time (s): 2.41274
CPU time (s): 2.40163
CPU user time (s): 1.23581
CPU system time (s): 1.16582
CPU usage (%): 99.5395
Max. virtual memory (cumulated for all children) (KiB): 963772

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.23581
system time used= 1.16582
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 233487
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= 6
involuntary context switches= 29

runsolver used 0.008998 s user time and 0.010998 s system time

The end



Launcher Data (download as text)




Begin job on node38 on Sun Jan  7 10:20:19 UTC 2007


IDJOB= 204046
IDBENCH= 3997
FILE ID= node38/204046-1168165215

PBS_JOBID= 3478585

Free space on /tmp= 66513 MiB

BENCH NAME= HOME/pub/bench/CPAI06/domino/domino-5000-5000.xml
COMMAND LINE= /tmp/evaluation/204046-1168165215/VALCSP /tmp/evaluation/204046-1168165215/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node38/watcher-204046-1168165215 -o ROOT/results/node38/solver-204046-1168165215 -C 1800 -M 900  /tmp/evaluation/204046-1168165215/VALCSP /tmp/evaluation/204046-1168165215/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  18de54b00f9f9844eda77aa609528237

RANDOM SEED= 414657994

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.267
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		: 3000.267
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:       1673512 kB
Buffers:         55224 kB
Cached:         236088 kB
SwapCached:          0 kB
Active:         143352 kB
Inactive:       167996 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1673512 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4756 kB
Writeback:           0 kB
Mapped:          30192 kB
Slab:            56716 kB
Committed_AS:  3492560 kB
PageTables:       1692 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= 66513 MiB



End job on node38 on Sun Jan  7 10:20:24 UTC 2007