Trace number 269389

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 3.1? (MO) 184.367 186.011

General information on the benchmark

Nametaillard/
os-taillard-20/os-taillard-20-95-0.xml
MD5SUM61d4842842d89971c5c662b1f6ba4621
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 variables400
Number of constraints7600
Maximum constraint arity2
Maximum domain size1154
Number of constraints which are defined in extension0
Number of constraints which are defined in intension7600
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/node40/watcher-269389-1168980585 -o ROOT/results/node40/solver-269389-1168980585 -C 1800 -M 900 /tmp/evaluation/269389-1168980585/VALCSP /tmp/evaluation/269389-1168980585/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: 0.02 0.10 0.35 4/73 527
/proc/meminfo: memFree=1332688/2055920 swapFree=4191892/4192956
[pid=526] ppid=524 vsize=18540 CPUtime=0
/proc/526/stat : 526 (runsolver) R 524 526 32755 0 -1 4194368 16 0 0 0 0 0 0 0 18 0 1 0 246459077 18984960 279 18446744073709551615 4194304 4267372 548682069088 18446744073709551615 264519609639 0 0 4096 24578 0 0 0 17 1 0 0
/proc/526/statm: 4635 279 244 17 0 2626 0

[startup+0.107033 s]
/proc/loadavg: 0.02 0.10 0.35 4/73 527
/proc/meminfo: memFree=1332688/2055920 swapFree=4191892/4192956
[pid=526] ppid=524 vsize=18840 CPUtime=0.09
/proc/526/stat : 526 (VALCSP) R 524 526 32755 0 -1 4194304 4405 0 0 0 8 1 0 0 18 0 1 0 246459077 19292160 4383 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529258 0 0 4096 0 0 0 0 17 0 0 0
/proc/526/statm: 4710 4383 65 8 0 4382 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 18840

[startup+0.515082 s]
/proc/loadavg: 0.02 0.10 0.35 4/73 527
/proc/meminfo: memFree=1332688/2055920 swapFree=4191892/4192956
[pid=526] ppid=524 vsize=18840 CPUtime=0.5
/proc/526/stat : 526 (VALCSP) R 524 526 32755 0 -1 4194304 4405 0 0 0 49 1 0 0 22 0 1 0 246459077 19292160 4383 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528694 0 0 4096 0 0 0 0 17 0 0 0
/proc/526/statm: 4710 4383 65 8 0 4382 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 18840

[startup+1.33519 s]
/proc/loadavg: 0.02 0.10 0.35 3/73 527
/proc/meminfo: memFree=1310544/2055920 swapFree=4191892/4192956
[pid=526] ppid=524 vsize=23596 CPUtime=1.3
/proc/526/stat : 526 (VALCSP) R 524 526 32755 0 -1 4194304 5610 0 0 0 129 1 0 0 25 0 1 0 246459077 24162304 5588 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/526/statm: 5899 5588 65 8 0 5571 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 23596

[startup+2.9714 s]
/proc/loadavg: 0.02 0.10 0.35 3/73 527
/proc/meminfo: memFree=1299600/2055920 swapFree=4191892/4192956
[pid=526] ppid=524 vsize=28364 CPUtime=2.94
/proc/526/stat : 526 (VALCSP) R 524 526 32755 0 -1 4194304 6809 0 0 0 292 2 0 0 25 0 1 0 246459077 29044736 6787 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/526/statm: 7091 6787 65 8 0 6763 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 28364

[startup+6.24882 s]
/proc/loadavg: 0.17 0.13 0.36 3/73 527
/proc/meminfo: memFree=1272976/2055920 swapFree=4191892/4192956
[pid=526] ppid=524 vsize=47004 CPUtime=6.19
/proc/526/stat : 526 (VALCSP) R 524 526 32755 0 -1 4194304 11471 0 0 0 615 4 0 0 25 0 1 0 246459077 48132096 11449 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 0 0 0
/proc/526/statm: 11751 11449 65 8 0 11423 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 47004

[startup+12.7057 s]
/proc/loadavg: 0.32 0.16 0.37 3/73 527
/proc/meminfo: memFree=1215056/2055920 swapFree=4191892/4192956
[pid=526] ppid=524 vsize=79464 CPUtime=12.6
/proc/526/stat : 526 (VALCSP) R 524 526 32755 0 -1 4194304 19575 0 0 0 1253 7 0 0 25 0 1 0 246459077 81371136 19553 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/526/statm: 19866 19553 65 8 0 19538 0
Current children cumulated CPU time (s) 12.6
Current children cumulated vsize (KiB) 79464

[startup+25.5163 s]
/proc/loadavg: 0.69 0.25 0.39 3/73 527
/proc/meminfo: memFree=1102672/2055920 swapFree=4191892/4192956
[pid=526] ppid=524 vsize=141616 CPUtime=25.31
/proc/526/stat : 526 (VALCSP) R 524 526 32755 0 -1 4194304 35106 0 0 0 2517 14 0 0 25 0 1 0 246459077 145014784 35084 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 0 0 0
/proc/526/statm: 35404 35084 65 8 0 35076 0
Current children cumulated CPU time (s) 25.31
Current children cumulated vsize (KiB) 141616

[startup+51.1346 s]
/proc/loadavg: 1.14 0.39 0.43 3/73 527
/proc/meminfo: memFree=872528/2055920 swapFree=4191892/4192956
[pid=526] ppid=524 vsize=263120 CPUtime=50.71
/proc/526/stat : 526 (VALCSP) R 524 526 32755 0 -1 4194304 65486 0 0 0 5046 25 0 0 25 0 1 0 246459077 269434880 65464 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528799 0 0 4096 0 0 0 0 17 0 0 0
/proc/526/statm: 65780 65464 65 8 0 65452 0
Current children cumulated CPU time (s) 50.71
Current children cumulated vsize (KiB) 263120

[startup+102.363 s]
/proc/loadavg: 1.62 0.64 0.51 3/73 527
/proc/meminfo: memFree=420752/2055920 swapFree=4191892/4192956
[pid=526] ppid=524 vsize=507752 CPUtime=101.54
/proc/526/stat : 526 (VALCSP) R 524 526 32755 0 -1 4194304 126651 0 0 0 10103 51 0 0 25 0 1 0 246459077 519938048 126629 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/526/statm: 126938 126629 65 8 0 126610 0
Current children cumulated CPU time (s) 101.54
Current children cumulated vsize (KiB) 507752

[startup+162.404 s]
/proc/loadavg: 1.86 0.88 0.60 3/73 527
/proc/meminfo: memFree=15376/2055920 swapFree=4191892/4192956
[pid=526] ppid=524 vsize=804468 CPUtime=161.05
/proc/526/stat : 526 (VALCSP) R 524 526 32755 0 -1 4194304 200810 0 0 0 16026 79 0 0 25 0 1 0 246459077 823775232 200788 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528582 0 0 4096 0 0 0 0 17 0 0 0
/proc/526/statm: 201117 200788 65 8 0 200789 0
Current children cumulated CPU time (s) 161.05
Current children cumulated vsize (KiB) 804468



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+185.86 s]
/proc/loadavg: 1.91 0.97 0.64 4/73 527
/proc/meminfo: memFree=16272/2055920 swapFree=4191892/4192956
[pid=526] ppid=524 vsize=925008 CPUtime=184.22
/proc/526/stat : 526 (VALCSP) R 524 526 32755 0 -1 4194304 230970 0 0 0 18331 91 0 0 25 0 1 0 246459077 947208192 230948 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 0 0 0
/proc/526/statm: 231252 230948 65 8 0 230924 0
Current children cumulated CPU time (s) 184.22
Current children cumulated vsize (KiB) 925008

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 186.011
CPU time (s): 184.367
CPU user time (s): 183.316
CPU system time (s): 1.05084
CPU usage (%): 99.1162
Max. virtual memory (cumulated for all children) (KiB): 925008

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 183.316
system time used= 1.05084
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230970
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= 4423

runsolver used 0.218966 s user time and 0.45793 s system time

The end



Launcher Data (download as text)




Begin job on node40 on Tue Jan 16 20:49:54 UTC 2007


IDJOB= 269389
IDBENCH= 6584
IDSOLVER= 90
FILE ID= node40/269389-1168980585

PBS_JOBID= 3566366

Free space on /tmp= 66563 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-20/os-taillard-20-95-0.xml
COMMAND LINE= /tmp/evaluation/269389-1168980585/VALCSP /tmp/evaluation/269389-1168980585/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node40/watcher-269389-1168980585 -o ROOT/results/node40/solver-269389-1168980585 -C 1800 -M 900  /tmp/evaluation/269389-1168980585/VALCSP /tmp/evaluation/269389-1168980585/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  61d4842842d89971c5c662b1f6ba4621

RANDOM SEED= 240658931

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		: 3000.239
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		: 3000.239
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:       1354456 kB
Buffers:         52908 kB
Cached:         548760 kB
SwapCached:        268 kB
Active:          79144 kB
Inactive:       542148 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1354456 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:            2244 kB
Writeback:           0 kB
Mapped:          28548 kB
Slab:            65872 kB
Committed_AS:  4804008 kB
PageTables:       1620 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= 66563 MiB



End job on node40 on Tue Jan 16 20:53:04 UTC 2007