Trace number 209751

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) 74.4447 75.0714

General information on the benchmark

Namefapp/fapp26-30/fapp26/
fapp26-2300-4.xml
MD5SUMe9c6fd6fb87d66d469dc532ded2c8dc5
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 benchmark7.55785
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables2300
Number of constraints24253
Maximum constraint arity2
Maximum domain size302
Number of constraints which are defined in extension0
Number of constraints which are defined in intension24253
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/node50/watcher-209751-1168193901 -o ROOT/results/node50/solver-209751-1168193901 -C 1800 -M 900 /tmp/evaluation/209751-1168193901/VALCSP /tmp/evaluation/209751-1168193901/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: 2.10 2.03 2.01 5/76 8556
/proc/meminfo: memFree=1512312/2055920 swapFree=4191892/4192956
[pid=8555] ppid=8553 vsize=18540 CPUtime=0
/proc/8555/stat : 8555 (runsolver) R 8553 8555 8500 0 -1 4194368 16 0 0 0 0 0 0 0 21 0 1 0 167788619 18984960 279 18446744073709551615 4194304 4267372 548682069088 18446744073709551615 240577473831 0 0 4096 24578 0 0 0 17 1 0 0
/proc/8555/statm: 4635 279 244 17 0 2626 0

[startup+0.15685 s]
/proc/loadavg: 2.10 2.03 2.01 5/76 8556
/proc/meminfo: memFree=1512312/2055920 swapFree=4191892/4192956
[pid=8555] ppid=8553 vsize=77864 CPUtime=0.14
/proc/8555/stat : 8555 (VALCSP) R 8553 8555 8500 0 -1 4194304 19087 0 0 0 6 8 0 0 21 0 1 0 167788619 79732736 19065 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530323 0 0 4096 0 0 0 0 17 1 0 0
/proc/8555/statm: 19466 19065 65 8 0 19138 0
Current children cumulated CPU time (s) 0.14
Current children cumulated vsize (KiB) 77864

[startup+0.565913 s]
/proc/loadavg: 2.10 2.03 2.01 5/76 8556
/proc/meminfo: memFree=1512312/2055920 swapFree=4191892/4192956
[pid=8555] ppid=8553 vsize=82352 CPUtime=0.54
/proc/8555/stat : 8555 (VALCSP) R 8553 8555 8500 0 -1 4194304 20190 0 0 0 46 8 0 0 25 0 1 0 167788619 84328448 20168 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/8555/statm: 20588 20168 65 8 0 20260 0
Current children cumulated CPU time (s) 0.54
Current children cumulated vsize (KiB) 82352

[startup+1.39105 s]
/proc/loadavg: 2.09 2.03 2.01 3/76 8556
/proc/meminfo: memFree=1424376/2055920 swapFree=4191892/4192956
[pid=8555] ppid=8553 vsize=91724 CPUtime=1.36
/proc/8555/stat : 8555 (VALCSP) R 8553 8555 8500 0 -1 4194304 22548 0 0 0 127 9 0 0 25 0 1 0 167788619 93925376 22526 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134531019 0 0 4096 0 0 0 0 17 1 0 0
/proc/8555/statm: 22931 22526 65 8 0 22603 0
Current children cumulated CPU time (s) 1.36
Current children cumulated vsize (KiB) 91724

[startup+3.02833 s]
/proc/loadavg: 2.09 2.03 2.01 3/76 8556
/proc/meminfo: memFree=1410680/2055920 swapFree=4191892/4192956
[pid=8555] ppid=8553 vsize=111524 CPUtime=2.99
/proc/8555/stat : 8555 (VALCSP) R 8553 8555 8500 0 -1 4194304 27487 0 0 0 287 12 0 0 25 0 1 0 167788619 114200576 27465 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/8555/statm: 27881 27465 65 8 0 27553 0
Current children cumulated CPU time (s) 2.99
Current children cumulated vsize (KiB) 111524

[startup+6.31188 s]
/proc/loadavg: 2.08 2.03 2.01 3/76 8556
/proc/meminfo: memFree=1371896/2055920 swapFree=4191892/4192956
[pid=8555] ppid=8553 vsize=149408 CPUtime=6.25
/proc/8555/stat : 8555 (VALCSP) R 8553 8555 8500 0 -1 4194304 36947 0 0 0 609 16 0 0 25 0 1 0 167788619 152993792 36925 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530207 0 0 4096 0 0 0 0 17 1 0 0
/proc/8555/statm: 37352 36925 65 8 0 37024 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 149408

[startup+12.771 s]
/proc/loadavg: 2.07 2.03 2.01 3/76 8556
/proc/meminfo: memFree=1294136/2055920 swapFree=4191892/4192956
[pid=8555] ppid=8553 vsize=223592 CPUtime=12.65
/proc/8555/stat : 8555 (VALCSP) R 8553 8555 8500 0 -1 4194304 55495 0 0 0 1241 24 0 0 25 0 1 0 167788619 228958208 55473 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134531078 0 0 4096 0 0 0 0 17 1 0 0
/proc/8555/statm: 55898 55473 65 8 0 55570 0
Current children cumulated CPU time (s) 12.65
Current children cumulated vsize (KiB) 223592

[startup+25.5861 s]
/proc/loadavg: 2.06 2.03 2.00 3/76 8556
/proc/meminfo: memFree=1154808/2055920 swapFree=4191892/4192956
[pid=8555] ppid=8553 vsize=366416 CPUtime=25.37
/proc/8555/stat : 8555 (VALCSP) R 8553 8555 8500 0 -1 4194304 91223 0 0 0 2499 38 0 0 25 0 1 0 167788619 375209984 91201 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/8555/statm: 91604 91201 65 8 0 91276 0
Current children cumulated CPU time (s) 25.37
Current children cumulated vsize (KiB) 366416

[startup+51.2234 s]
/proc/loadavg: 2.04 2.02 2.00 3/76 8556
/proc/meminfo: memFree=857592/2055920 swapFree=4191892/4192956
[pid=8555] ppid=8553 vsize=657212 CPUtime=50.79
/proc/8555/stat : 8555 (VALCSP) R 8553 8555 8500 0 -1 4194304 163906 0 0 0 5015 64 0 0 25 0 1 0 167788619 672985088 163884 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530540 0 0 4096 0 0 0 0 17 1 0 0
/proc/8555/statm: 164303 163884 65 8 0 163975 0
Current children cumulated CPU time (s) 50.79
Current children cumulated vsize (KiB) 657212



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+74.9237 s]
/proc/loadavg: 2.02 2.02 2.00 3/76 8556
/proc/meminfo: memFree=587192/2055920 swapFree=4191892/4192956
[pid=8555] ppid=8553 vsize=922536 CPUtime=74.29
/proc/8555/stat : 8555 (VALCSP) R 8553 8555 8500 0 -1 4194304 230255 0 0 0 7339 90 0 0 25 0 1 0 167788619 944676864 230233 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530259 0 0 4096 0 0 0 0 17 1 0 0
/proc/8555/statm: 230634 230233 65 8 0 230306 0
Current children cumulated CPU time (s) 74.29
Current children cumulated vsize (KiB) 922536

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 75.0714
CPU time (s): 74.4447
CPU user time (s): 73.3998
CPU system time (s): 1.04484
CPU usage (%): 99.1652
Max. virtual memory (cumulated for all children) (KiB): 922536

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 73.3998
system time used= 1.04484
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230255
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= 1524

runsolver used 0.067989 s user time and 0.214967 s system time

The end



Launcher Data (download as text)




Begin job on node50 on Sun Jan  7 18:18:21 UTC 2007


IDJOB= 209751
IDBENCH= 4558
FILE ID= node50/209751-1168193901

PBS_JOBID= 3479437

Free space on /tmp= 66557 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp26-30/fapp26/fapp26-2300-4.xml
COMMAND LINE= /tmp/evaluation/209751-1168193901/VALCSP /tmp/evaluation/209751-1168193901/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node50/watcher-209751-1168193901 -o ROOT/results/node50/solver-209751-1168193901 -C 1800 -M 900  /tmp/evaluation/209751-1168193901/VALCSP /tmp/evaluation/209751-1168193901/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  e9c6fd6fb87d66d469dc532ded2c8dc5

RANDOM SEED= 22065001

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		: 3000.263
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	: 5931.00
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		: 3000.263
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:       1512728 kB
Buffers:         38604 kB
Cached:         404996 kB
SwapCached:        372 kB
Active:         100980 kB
Inactive:       383668 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1512728 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:            3620 kB
Writeback:           0 kB
Mapped:          51168 kB
Slab:            43904 kB
Committed_AS:  3961480 kB
PageTables:       1868 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= 66557 MiB



End job on node50 on Sun Jan  7 18:19:36 UTC 2007