Trace number 237665

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) 28.3517 28.8083

General information on the benchmark

Namehaystacks/
haystacks_53.xml
MD5SUMa0098767a588d03f7d6994873b18d5bf
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables2809
Number of constraints73086
Maximum constraint arity2
Maximum domain size53
Number of constraints which are defined in extension0
Number of constraints which are defined in intension73086
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/node56/watcher-237665-1168349926 -o ROOT/results/node56/solver-237665-1168349926 -C 1800 -M 900 /tmp/evaluation/237665-1168349926/VALCSP /tmp/evaluation/237665-1168349926/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: 1.23 2.91 4.14 4/70 30591
/proc/meminfo: memFree=1910968/2055920 swapFree=4184772/4192956
[pid=30590] ppid=30588 vsize=136 CPUtime=0
/proc/30590/stat : 30590 (VALCSP) D 30588 30590 30478 0 -1 4194304 17 0 0 0 0 0 0 0 18 0 1 0 183390732 139264 2 18446744073709551615 0 0 4294957101 18446744073709551615 253307186471 0 0 4096 0 18446744071563608240 0 0 17 1 0 0
/proc/30590/statm: 34 2 0 0 0 1 0

[startup+0.107552 s]
/proc/loadavg: 1.23 2.91 4.14 4/70 30591
/proc/meminfo: memFree=1910968/2055920 swapFree=4184772/4192956
[pid=30590] ppid=30588 vsize=60696 CPUtime=0.08
/proc/30590/stat : 30590 (VALCSP) R 30588 30590 30478 0 -1 4194304 14223 0 3 0 2 6 0 0 18 0 1 0 183390732 62152704 14204 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134534840 0 0 4096 0 0 0 0 17 1 0 0
/proc/30590/statm: 15174 14204 62 8 0 14846 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 60696

[startup+0.516579 s]
/proc/loadavg: 1.23 2.91 4.14 4/70 30591
/proc/meminfo: memFree=1910968/2055920 swapFree=4184772/4192956
[pid=30590] ppid=30588 vsize=109264 CPUtime=0.48
/proc/30590/stat : 30590 (VALCSP) R 30588 30590 30478 0 -1 4194304 25582 0 3 0 37 11 0 0 21 0 1 0 183390732 111886336 25563 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 10466005 0 0 4096 0 0 0 0 17 1 0 0
/proc/30590/statm: 27316 25563 65 8 0 26988 0
Current children cumulated CPU time (s) 0.48
Current children cumulated vsize (KiB) 109264

[startup+1.34465 s]
/proc/loadavg: 1.23 2.91 4.14 2/73 30594
/proc/meminfo: memFree=1783840/2055920 swapFree=4184772/4192956
[pid=30590] ppid=30588 vsize=133120 CPUtime=1.3
/proc/30590/stat : 30590 (VALCSP) R 30588 30590 30478 0 -1 4194304 31588 0 3 0 116 14 0 0 25 0 1 0 183390732 136314880 31569 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 10462843 0 0 4096 0 0 0 0 17 0 0 0
/proc/30590/statm: 33280 31569 65 8 0 32952 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 133120

[startup+2.98682 s]
/proc/loadavg: 1.23 2.91 4.14 4/84 30605
/proc/meminfo: memFree=1731528/2055920 swapFree=4184772/4192956
[pid=30590] ppid=30588 vsize=180220 CPUtime=2.92
/proc/30590/stat : 30590 (VALCSP) R 30588 30590 30478 0 -1 4194304 43373 0 3 0 270 22 0 0 25 0 1 0 183390732 184545280 43354 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530848 0 0 4096 0 0 0 0 17 1 0 0
/proc/30590/statm: 45055 43354 65 8 0 44727 0
Current children cumulated CPU time (s) 2.92
Current children cumulated vsize (KiB) 180220

[startup+6.26614 s]
/proc/loadavg: 1.46 2.93 4.14 4/84 30605
/proc/meminfo: memFree=1539208/2055920 swapFree=4184772/4192956
[pid=30590] ppid=30588 vsize=271896 CPUtime=6.18
/proc/30590/stat : 30590 (VALCSP) R 30588 30590 30478 0 -1 4194304 66331 0 3 0 585 33 0 0 25 0 1 0 183390732 278421504 66312 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/30590/statm: 67974 66312 65 8 0 67646 0
Current children cumulated CPU time (s) 6.18
Current children cumulated vsize (KiB) 271896

[startup+12.7338 s]
/proc/loadavg: 1.61 2.92 4.13 4/84 30605
/proc/meminfo: memFree=1265416/2055920 swapFree=4184772/4192956
[pid=30590] ppid=30588 vsize=451380 CPUtime=12.49
/proc/30590/stat : 30590 (VALCSP) R 30588 30590 30478 0 -1 4194304 111333 0 3 0 1194 55 0 0 25 0 1 0 183390732 462213120 111314 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/30590/statm: 112845 111314 65 8 0 112517 0
Current children cumulated CPU time (s) 12.49
Current children cumulated vsize (KiB) 451380

[startup+25.5677 s]
/proc/loadavg: 1.67 2.89 4.10 3/84 30605
/proc/meminfo: memFree=769928/2055920 swapFree=4184772/4192956
[pid=30590] ppid=30588 vsize=826472 CPUtime=25.13
/proc/30590/stat : 30590 (VALCSP) R 30588 30590 30478 0 -1 4194304 205294 0 3 0 2414 99 0 0 25 0 1 0 183390732 846307328 205275 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 10462843 0 0 4096 0 0 0 0 17 0 0 0
/proc/30590/statm: 206618 205275 66 8 0 206290 0
Current children cumulated CPU time (s) 25.13
Current children cumulated vsize (KiB) 826472



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+28.6673 s]
/proc/loadavg: 1.70 2.87 4.09 3/84 30605
/proc/meminfo: memFree=604040/2055920 swapFree=4184772/4192956
[pid=30590] ppid=30588 vsize=923920 CPUtime=28.21
/proc/30590/stat : 30590 (VALCSP) R 30588 30590 30478 0 -1 4194304 229709 0 3 0 2712 109 0 0 25 0 1 0 183390732 946094080 229690 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 10462843 0 0 4096 0 0 0 0 17 0 0 0
/proc/30590/statm: 230980 229690 66 8 0 230652 0
Current children cumulated CPU time (s) 28.21
Current children cumulated vsize (KiB) 923920

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 28.8083
CPU time (s): 28.3517
CPU user time (s): 27.1229
CPU system time (s): 1.22881
CPU usage (%): 98.4151
Max. virtual memory (cumulated for all children) (KiB): 923920

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 27.1229
system time used= 1.22881
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 229709
page faults= 3
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 11
involuntary context switches= 955

runsolver used 0.035994 s user time and 0.086986 s system time

The end



Launcher Data (download as text)




Begin job on node56 on Tue Jan  9 13:38:46 UTC 2007


IDJOB= 237665
IDBENCH= 6955
FILE ID= node56/237665-1168349926

PBS_JOBID= 3503911

Free space on /tmp= 66543 MiB

BENCH NAME= HOME/pub/bench/CPAI06/haystacks/haystacks_53.xml
COMMAND LINE= /tmp/evaluation/237665-1168349926/VALCSP /tmp/evaluation/237665-1168349926/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node56/watcher-237665-1168349926 -o ROOT/results/node56/solver-237665-1168349926 -C 1800 -M 900  /tmp/evaluation/237665-1168349926/VALCSP /tmp/evaluation/237665-1168349926/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  a0098767a588d03f7d6994873b18d5bf

RANDOM SEED= 558631238

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		: 3000.232
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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1911840 kB
Buffers:         26280 kB
Cached:          58728 kB
SwapCached:       1080 kB
Active:          67620 kB
Inactive:        30532 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1911840 kB
SwapTotal:     4192956 kB
SwapFree:      4184772 kB
Dirty:           20444 kB
Writeback:           0 kB
Mapped:          21056 kB
Slab:            31476 kB
Committed_AS:  4039848 kB
PageTables:       1716 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= 66543 MiB



End job on node56 on Tue Jan  9 13:39:15 UTC 2007