Trace number 202141

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) 77.4762 77.5274

General information on the benchmark

Namefapp/fapp21-25/fapp24/
fapp24-2000-1.xml
MD5SUM51fbbd3d8051a275ceb423401b552f1d
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 benchmark6.95394
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables2000
Number of constraints26753
Maximum constraint arity2
Maximum domain size302
Number of constraints which are defined in extension0
Number of constraints which are defined in intension26753
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/node13/watcher-202141-1168150607 -o ROOT/results/node13/solver-202141-1168150607 -C 1800 -M 900 /tmp/evaluation/202141-1168150607/VALCSP /tmp/evaluation/202141-1168150607/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: 0.12 0.75 1.43 5/79 431
/proc/meminfo: memFree=1481048/2055920 swapFree=4192812/4192956
[pid=430] ppid=428 vsize=18540 CPUtime=0
/proc/430/stat : 430 (runsolver) R 428 430 373 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 163456222 18984960 279 18446744073709551615 4194304 4267372 548682069072 18446744073709551615 269757246759 0 0 4096 24578 0 0 0 17 0 0 0
/proc/430/statm: 4635 279 244 17 0 2626 0

[startup+0.106753 s]
/proc/loadavg: 0.12 0.75 1.43 5/79 431
/proc/meminfo: memFree=1481048/2055920 swapFree=4192812/4192956
[pid=430] ppid=428 vsize=61100 CPUtime=0.09
/proc/430/stat : 430 (VALCSP) R 428 430 373 0 -1 4194304 14859 0 0 0 3 6 0 0 20 0 1 0 163456222 62566400 14837 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530319 0 0 4096 0 0 0 0 17 1 0 0
/proc/430/statm: 15275 14837 65 8 0 14947 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 61100

[startup+0.514804 s]
/proc/loadavg: 0.12 0.75 1.43 5/79 431
/proc/meminfo: memFree=1481048/2055920 swapFree=4192812/4192956
[pid=430] ppid=428 vsize=65588 CPUtime=0.5
/proc/430/stat : 430 (VALCSP) R 428 430 373 0 -1 4194304 15988 0 0 0 43 7 0 0 24 0 1 0 163456222 67162112 15966 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530227 0 0 4096 0 0 0 0 17 1 0 0
/proc/430/statm: 16397 15966 65 8 0 16069 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 65588

[startup+1.33491 s]
/proc/loadavg: 0.12 0.75 1.43 2/78 435
/proc/meminfo: memFree=1410784/2055920 swapFree=4192812/4192956
[pid=430] ppid=428 vsize=75092 CPUtime=1.32
/proc/430/stat : 430 (VALCSP) R 428 430 373 0 -1 4194304 18381 0 0 0 124 8 0 0 25 0 1 0 163456222 76894208 18359 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530957 0 0 4096 0 0 0 0 17 1 0 0
/proc/430/statm: 18773 18359 65 8 0 18445 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 75092

[startup+2.97113 s]
/proc/loadavg: 0.12 0.75 1.43 2/81 466
/proc/meminfo: memFree=1392064/2055920 swapFree=4192812/4192956
[pid=430] ppid=428 vsize=93044 CPUtime=2.94
/proc/430/stat : 430 (VALCSP) R 428 430 373 0 -1 4194304 22861 0 0 0 285 9 0 0 25 0 1 0 163456222 95277056 22839 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/430/statm: 23261 22839 65 8 0 22933 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 93044

[startup+6.25058 s]
/proc/loadavg: 0.19 0.75 1.43 3/94 525
/proc/meminfo: memFree=1318360/2055920 swapFree=4192812/4192956
[pid=430] ppid=428 vsize=129608 CPUtime=6.22
/proc/430/stat : 430 (VALCSP) R 428 430 373 0 -1 4194304 31991 0 0 0 606 16 0 0 25 0 1 0 163456222 132718592 31969 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/430/statm: 32402 31969 65 8 0 32074 0
Current children cumulated CPU time (s) 6.22
Current children cumulated vsize (KiB) 129608

[startup+12.7274 s]
/proc/loadavg: 0.42 0.79 1.44 4/94 525
/proc/meminfo: memFree=1142488/2055920 swapFree=4192812/4192956
[pid=430] ppid=428 vsize=199568 CPUtime=12.68
/proc/430/stat : 430 (VALCSP) R 428 430 373 0 -1 4194304 49472 0 0 0 1243 25 0 0 25 0 1 0 163456222 204357632 49450 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530948 0 0 4096 0 0 0 0 17 1 0 0
/proc/430/statm: 49892 49450 65 8 0 49564 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 199568

[startup+25.5597 s]
/proc/loadavg: 0.83 0.86 1.45 4/94 525
/proc/meminfo: memFree=885848/2055920 swapFree=4192812/4192956
[pid=430] ppid=428 vsize=342656 CPUtime=25.51
/proc/430/stat : 430 (VALCSP) R 428 430 373 0 -1 4194304 85249 0 0 0 2508 43 0 0 25 0 1 0 163456222 350879744 85227 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530286 0 0 4096 0 0 0 0 17 1 0 0
/proc/430/statm: 85664 85227 65 8 0 85336 0
Current children cumulated CPU time (s) 25.51
Current children cumulated vsize (KiB) 342656

[startup+51.2196 s]
/proc/loadavg: 1.29 0.97 1.47 3/94 525
/proc/meminfo: memFree=448408/2055920 swapFree=4192812/4192956
[pid=430] ppid=428 vsize=629492 CPUtime=51.17
/proc/430/stat : 430 (VALCSP) R 428 430 373 0 -1 4194304 156965 0 0 0 5039 78 0 0 25 0 1 0 163456222 644599808 156943 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530948 0 0 4096 0 0 0 0 17 1 0 0
/proc/430/statm: 157373 156943 65 8 0 157045 0
Current children cumulated CPU time (s) 51.17
Current children cumulated vsize (KiB) 629492



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+77.3801 s]
/proc/loadavg: 1.53 1.05 1.48 3/94 525
/proc/meminfo: memFree=25176/2055920 swapFree=4192812/4192956
[pid=430] ppid=428 vsize=922804 CPUtime=77.33
/proc/430/stat : 430 (VALCSP) R 428 430 373 0 -1 4194304 230299 0 0 0 7619 114 0 0 25 0 1 0 163456222 944951296 230277 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/430/statm: 230701 230277 65 8 0 230373 0
Current children cumulated CPU time (s) 77.33
Current children cumulated vsize (KiB) 922804

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 77.5274
CPU time (s): 77.4762
CPU user time (s): 76.1924
CPU system time (s): 1.2838
CPU usage (%): 99.934
Max. virtual memory (cumulated for all children) (KiB): 922804

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 76.1924
system time used= 1.2838
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230299
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= 1630

runsolver used 0.070989 s user time and 0.220966 s system time

The end



Launcher Data (download as text)




Begin job on node13 on Sun Jan  7 06:16:49 UTC 2007


IDJOB= 202141
IDBENCH= 3815
FILE ID= node13/202141-1168150607

PBS_JOBID= 3478220

Free space on /tmp= 66321 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp21-25/fapp24/fapp24-2000-1.xml
COMMAND LINE= /tmp/evaluation/202141-1168150607/VALCSP /tmp/evaluation/202141-1168150607/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-202141-1168150607 -o ROOT/results/node13/solver-202141-1168150607 -C 1800 -M 900  /tmp/evaluation/202141-1168150607/VALCSP /tmp/evaluation/202141-1168150607/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  51fbbd3d8051a275ceb423401b552f1d

RANDOM SEED= 68276354

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		: 3000.247
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		: 3000.247
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:       1476264 kB
Buffers:         50036 kB
Cached:         397404 kB
SwapCached:          0 kB
Active:         122932 kB
Inactive:       374216 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1476264 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4000 kB
Writeback:           0 kB
Mapped:          68720 kB
Slab:            67484 kB
Committed_AS:  4024072 kB
PageTables:       2220 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= 66317 MiB



End job on node13 on Sun Jan  7 06:18:10 UTC 2007