Trace number 269395

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) 207.842 209.739

General information on the benchmark

Nametaillard/os-taillard-20/
os-taillard-20-100-9.xml
MD5SUM7bcc6ec8aa0f71b96754283e8b08b1cc
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 benchmark1.90271
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables400
Number of constraints7600
Maximum constraint arity2
Maximum domain size1284
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/node56/watcher-269395-1168980596 -o ROOT/results/node56/solver-269395-1168980596 -C 1800 -M 900 /tmp/evaluation/269395-1168980596/VALCSP /tmp/evaluation/269395-1168980596/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 0.09 0.42 3/73 16698
/proc/meminfo: memFree=1433784/2055920 swapFree=4184804/4192956
[pid=16697] ppid=16692 vsize=18540 CPUtime=0
/proc/16697/stat : 16697 (runsolver) R 16692 16697 16431 0 -1 4194368 16 0 0 0 0 0 0 0 18 0 1 0 246458484 18984960 279 18446744073709551615 4194304 4267372 548682069088 18446744073709551615 253307186471 0 0 4096 24578 0 0 0 17 1 0 0
/proc/16697/statm: 4635 279 244 17 0 2626 0

[startup+0.102345 s]
/proc/loadavg: 0.02 0.09 0.42 3/73 16698
/proc/meminfo: memFree=1433784/2055920 swapFree=4184804/4192956
[pid=16697] ppid=16692 vsize=21304 CPUtime=0.08
/proc/16697/stat : 16697 (VALCSP) R 16692 16697 16431 0 -1 4194304 5031 0 0 0 6 2 0 0 18 0 1 0 246458484 21815296 5009 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 0 0 0
/proc/16697/statm: 5326 5009 65 8 0 4998 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 21304

[startup+0.510382 s]
/proc/loadavg: 0.02 0.09 0.42 3/73 16698
/proc/meminfo: memFree=1433784/2055920 swapFree=4184804/4192956
[pid=16697] ppid=16692 vsize=21304 CPUtime=0.49
/proc/16697/stat : 16697 (VALCSP) R 16692 16697 16431 0 -1 4194304 5031 0 0 0 47 2 0 0 22 0 1 0 246458484 21815296 5009 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 0 0 0
/proc/16697/statm: 5326 5009 65 8 0 4998 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 21304

[startup+1.33046 s]
/proc/loadavg: 0.02 0.09 0.42 3/73 16698
/proc/meminfo: memFree=1397048/2055920 swapFree=4184804/4192956
[pid=16697] ppid=16692 vsize=21304 CPUtime=1.3
/proc/16697/stat : 16697 (VALCSP) R 16692 16697 16431 0 -1 4194304 5031 0 0 0 128 2 0 0 25 0 1 0 246458484 21815296 5009 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/16697/statm: 5326 5009 65 8 0 4998 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 21304

[startup+2.96662 s]
/proc/loadavg: 0.02 0.09 0.42 3/73 16698
/proc/meminfo: memFree=1385016/2055920 swapFree=4184804/4192956
[pid=16697] ppid=16692 vsize=27700 CPUtime=2.94
/proc/16697/stat : 16697 (VALCSP) R 16692 16697 16431 0 -1 4194304 6620 0 0 0 291 3 0 0 25 0 1 0 246458484 28364800 6598 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528646 0 0 4096 0 0 0 0 17 0 0 0
/proc/16697/statm: 6925 6598 65 8 0 6597 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 27700

[startup+6.24894 s]
/proc/loadavg: 0.18 0.12 0.43 3/73 16698
/proc/meminfo: memFree=1355960/2055920 swapFree=4184804/4192956
[pid=16697] ppid=16692 vsize=46388 CPUtime=6.19
/proc/16697/stat : 16697 (VALCSP) R 16692 16697 16431 0 -1 4194304 11290 0 0 0 614 5 0 0 25 0 1 0 246458484 47501312 11268 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134528709 0 0 4096 0 0 0 0 17 0 0 0
/proc/16697/statm: 11597 11268 65 8 0 11269 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 46388

[startup+12.7036 s]
/proc/loadavg: 0.33 0.15 0.44 3/73 16698
/proc/meminfo: memFree=1297016/2055920 swapFree=4184804/4192956
[pid=16697] ppid=16692 vsize=70724 CPUtime=12.56
/proc/16697/stat : 16697 (VALCSP) R 16692 16697 16431 0 -1 4194304 17383 0 0 0 1248 8 0 0 25 0 1 0 246458484 72421376 17361 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529329 0 0 4096 0 0 0 0 17 0 0 0
/proc/16697/statm: 17681 17361 65 8 0 17353 0
Current children cumulated CPU time (s) 12.56
Current children cumulated vsize (KiB) 70724

[startup+25.5538 s]
/proc/loadavg: 0.70 0.24 0.46 3/73 16698
/proc/meminfo: memFree=1198520/2055920 swapFree=4184804/4192956
[pid=16697] ppid=16692 vsize=125984 CPUtime=25.32
/proc/16697/stat : 16697 (VALCSP) R 16692 16697 16431 0 -1 4194304 31194 0 0 0 2519 13 0 0 25 0 1 0 246458484 129007616 31172 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/16697/statm: 31496 31172 65 8 0 31168 0
Current children cumulated CPU time (s) 25.32
Current children cumulated vsize (KiB) 125984

[startup+51.1683 s]
/proc/loadavg: 1.14 0.38 0.50 3/73 16698
/proc/meminfo: memFree=979448/2055920 swapFree=4184804/4192956
[pid=16697] ppid=16692 vsize=237776 CPUtime=50.75
/proc/16697/stat : 16697 (VALCSP) R 16692 16697 16431 0 -1 4194304 59135 0 0 0 5051 24 0 0 25 0 1 0 246458484 243482624 59113 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/16697/statm: 59444 59113 65 8 0 59116 0
Current children cumulated CPU time (s) 50.75
Current children cumulated vsize (KiB) 237776

[startup+102.393 s]
/proc/loadavg: 1.62 0.63 0.58 3/73 16698
/proc/meminfo: memFree=567800/2055920 swapFree=4184804/4192956
[pid=16697] ppid=16692 vsize=457176 CPUtime=101.54
/proc/16697/stat : 16697 (VALCSP) R 16692 16697 16431 0 -1 4194304 114010 0 0 0 10109 45 0 0 25 0 1 0 246458484 468148224 113988 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529344 0 0 4096 0 0 0 0 17 0 0 0
/proc/16697/statm: 114294 113988 65 8 0 113966 0
Current children cumulated CPU time (s) 101.54
Current children cumulated vsize (KiB) 457176

[startup+162.443 s]
/proc/loadavg: 1.86 0.87 0.66 3/73 16698
/proc/meminfo: memFree=52152/2055920 swapFree=4184804/4192956
[pid=16697] ppid=16692 vsize=719856 CPUtime=161.11
/proc/16697/stat : 16697 (VALCSP) R 16692 16697 16431 0 -1 4194304 179670 0 0 0 16041 70 0 0 25 0 1 0 246458484 737132544 179648 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134529339 0 0 4096 0 0 0 0 17 0 0 0
/proc/16697/statm: 179964 179648 65 8 0 179636 0
Current children cumulated CPU time (s) 161.11
Current children cumulated vsize (KiB) 719856



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+209.589 s]
/proc/loadavg: 1.94 1.05 0.73 3/73 16698
/proc/meminfo: memFree=16248/2055920 swapFree=4184804/4192956
[pid=16697] ppid=16692 vsize=921700 CPUtime=207.7
/proc/16697/stat : 16697 (VALCSP) R 16692 16697 16431 0 -1 4194304 230141 0 0 0 20679 91 0 0 25 0 1 0 246458484 943820800 230119 18446744073709551615 134512640 134547260 4294956736 18446744073709551615 134538691 0 0 4096 0 0 0 0 17 0 0 0
/proc/16697/statm: 230425 230119 65 8 0 230097 0
Current children cumulated CPU time (s) 207.7
Current children cumulated vsize (KiB) 921700

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 209.739
CPU time (s): 207.842
CPU user time (s): 206.795
CPU system time (s): 1.04784
CPU usage (%): 99.0958
Max. virtual memory (cumulated for all children) (KiB): 921700

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 206.795
system time used= 1.04784
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230141
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= 4882

runsolver used 0.25896 s user time and 0.498924 s system time

The end



Launcher Data (download as text)




Begin job on node56 on Tue Jan 16 20:49:58 UTC 2007


IDJOB= 269395
IDBENCH= 6590
IDSOLVER= 90
FILE ID= node56/269395-1168980596

PBS_JOBID= 3566363

Free space on /tmp= 66563 MiB

SOLVER NAME= VALCSP 3.1
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-20/os-taillard-20-100-9.xml
COMMAND LINE= /tmp/evaluation/269395-1168980596/VALCSP /tmp/evaluation/269395-1168980596/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node56/watcher-269395-1168980596 -o ROOT/results/node56/solver-269395-1168980596 -C 1800 -M 900  /tmp/evaluation/269395-1168980596/VALCSP /tmp/evaluation/269395-1168980596/unknown.xml

META MD5SUM SOLVER= d4fc2c4e0b0392ee9c79e754aa39e238
MD5SUM BENCH=  7bcc6ec8aa0f71b96754283e8b08b1cc

RANDOM SEED= 37613773

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:       1437312 kB
Buffers:         51244 kB
Cached:         478364 kB
SwapCached:       2356 kB
Active:         157060 kB
Inactive:       387132 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1437312 kB
SwapTotal:     4192956 kB
SwapFree:      4184804 kB
Dirty:            2164 kB
Writeback:           0 kB
Mapped:          21360 kB
Slab:            60124 kB
Committed_AS:  4705576 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= 66563 MiB



End job on node56 on Tue Jan 16 20:53:35 UTC 2007