Trace number 233089

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) 210.935 211.618

General information on the benchmark

Nametaillard/os-taillard-20/
os-taillard-20-100-7.xml
MD5SUMb7da7eeabd87a2ed31538cf45df24a02
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 benchmark0.916859
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables400
Number of constraints7600
Maximum constraint arity2
Maximum domain size1269
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/node3/watcher-233089-1168324780 -o ROOT/results/node3/solver-233089-1168324780 -C 1800 -M 900 /tmp/evaluation/233089-1168324780/VALCSP /tmp/evaluation/233089-1168324780/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: 2.45 2.18 2.06 5/89 27951
/proc/meminfo: memFree=1544840/2055920 swapFree=4192812/4192956
[pid=27950] ppid=27948 vsize=18540 CPUtime=0
/proc/27950/stat : 27950 (runsolver) R 27948 27950 27638 0 -1 4194368 16 0 0 0 0 0 0 0 21 0 1 0 180873615 18984960 279 18446744073709551615 4194304 4267372 548682069072 18446744073709551615 233632754983 0 0 4096 24578 0 0 0 17 1 0 0
/proc/27950/statm: 4635 279 244 17 0 2626 0

[startup+0.157682 s]
/proc/loadavg: 2.45 2.18 2.06 5/89 27951
/proc/meminfo: memFree=1544840/2055920 swapFree=4192812/4192956
[pid=27950] ppid=27948 vsize=20864 CPUtime=0.14
/proc/27950/stat : 27950 (VALCSP) R 27948 27950 27638 0 -1 4194304 4925 0 0 0 12 2 0 0 22 0 1 0 180873615 21364736 4903 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/27950/statm: 5216 4903 65 8 0 4888 0
Current children cumulated CPU time (s) 0.14
Current children cumulated vsize (KiB) 20864

[startup+0.565749 s]
/proc/loadavg: 2.45 2.18 2.06 5/89 27951
/proc/meminfo: memFree=1544840/2055920 swapFree=4192812/4192956
[pid=27950] ppid=27948 vsize=20864 CPUtime=0.55
/proc/27950/stat : 27950 (VALCSP) R 27948 27950 27638 0 -1 4194304 4925 0 0 0 53 2 0 0 25 0 1 0 180873615 21364736 4903 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/27950/statm: 5216 4903 65 8 0 4888 0
Current children cumulated CPU time (s) 0.55
Current children cumulated vsize (KiB) 20864

[startup+1.38688 s]
/proc/loadavg: 2.41 2.17 2.06 3/89 27951
/proc/meminfo: memFree=1525448/2055920 swapFree=4192812/4192956
[pid=27950] ppid=27948 vsize=20864 CPUtime=1.36
/proc/27950/stat : 27950 (VALCSP) R 27948 27950 27638 0 -1 4194304 4925 0 0 0 134 2 0 0 25 0 1 0 180873615 21364736 4903 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/27950/statm: 5216 4903 65 8 0 4888 0
Current children cumulated CPU time (s) 1.36
Current children cumulated vsize (KiB) 20864

[startup+3.02815 s]
/proc/loadavg: 2.41 2.17 2.06 3/89 27951
/proc/meminfo: memFree=1519816/2055920 swapFree=4192812/4192956
[pid=27950] ppid=27948 vsize=32004 CPUtime=3
/proc/27950/stat : 27950 (VALCSP) R 27948 27950 27638 0 -1 4194304 7706 0 0 0 296 4 0 0 25 0 1 0 180873615 32772096 7684 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530236 0 0 4096 0 0 0 0 17 1 0 0
/proc/27950/statm: 8001 7684 65 8 0 7673 0
Current children cumulated CPU time (s) 3
Current children cumulated vsize (KiB) 32004

[startup+6.30768 s]
/proc/loadavg: 2.41 2.17 2.06 3/89 27951
/proc/meminfo: memFree=1502664/2055920 swapFree=4192812/4192956
[pid=27950] ppid=27948 vsize=43540 CPUtime=6.24
/proc/27950/stat : 27950 (VALCSP) R 27948 27950 27638 0 -1 4194304 10588 0 0 0 619 5 0 0 25 0 1 0 180873615 44584960 10566 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/27950/statm: 10885 10566 65 8 0 10557 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 43540

[startup+12.7707 s]
/proc/loadavg: 2.35 2.17 2.06 3/89 27951
/proc/meminfo: memFree=1479688/2055920 swapFree=4192812/4192956
[pid=27950] ppid=27948 vsize=72336 CPUtime=12.65
/proc/27950/stat : 27950 (VALCSP) R 27948 27950 27638 0 -1 4194304 17788 0 0 0 1256 9 0 0 25 0 1 0 180873615 74072064 17766 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/27950/statm: 18084 17766 65 8 0 17756 0
Current children cumulated CPU time (s) 12.65
Current children cumulated vsize (KiB) 72336

[startup+25.5878 s]
/proc/loadavg: 2.29 2.16 2.05 3/89 27951
/proc/meminfo: memFree=1422984/2055920 swapFree=4192812/4192956
[pid=27950] ppid=27948 vsize=123148 CPUtime=25.35
/proc/27950/stat : 27950 (VALCSP) R 27948 27950 27638 0 -1 4194304 30503 0 0 0 2520 15 0 0 25 0 1 0 180873615 126103552 30481 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/27950/statm: 30787 30481 65 8 0 30459 0
Current children cumulated CPU time (s) 25.35
Current children cumulated vsize (KiB) 123148

[startup+51.222 s]
/proc/loadavg: 2.18 2.14 2.05 3/86 27951
/proc/meminfo: memFree=1322312/2055920 swapFree=4192812/4192956
[pid=27950] ppid=27948 vsize=223772 CPUtime=50.77
/proc/27950/stat : 27950 (VALCSP) R 27948 27950 27638 0 -1 4194304 55644 0 0 0 5049 28 0 0 25 0 1 0 180873615 229142528 55622 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/27950/statm: 55943 55622 65 8 0 55615 0
Current children cumulated CPU time (s) 50.77
Current children cumulated vsize (KiB) 223772

[startup+102.484 s]
/proc/loadavg: 2.04 2.11 2.04 3/86 28181
/proc/meminfo: memFree=1074272/2055920 swapFree=4192812/4192956
[pid=27950] ppid=27948 vsize=449420 CPUtime=101.93
/proc/27950/stat : 27950 (VALCSP) R 27948 27950 27638 0 -1 4194304 112056 0 0 0 10140 53 0 0 25 0 1 0 180873615 460206080 112034 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 0 0 0
/proc/27950/statm: 112355 112034 65 8 0 112027 0
Current children cumulated CPU time (s) 101.93
Current children cumulated vsize (KiB) 449420

[startup+162.572 s]
/proc/loadavg: 2.01 2.08 2.04 3/86 28181
/proc/meminfo: memFree=818528/2055920 swapFree=4192812/4192956
[pid=27950] ppid=27948 vsize=704716 CPUtime=161.93
/proc/27950/stat : 27950 (VALCSP) R 27948 27950 27638 0 -1 4194304 175883 0 0 0 16113 80 0 0 25 0 1 0 180873615 721629184 175861 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 0 0 0
/proc/27950/statm: 176179 175861 65 8 0 175851 0
Current children cumulated CPU time (s) 161.93
Current children cumulated vsize (KiB) 704716



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+211.477 s]
/proc/loadavg: 2.00 2.07 2.03 3/86 28181
/proc/meminfo: memFree=600864/2055920 swapFree=4192812/4192956
[pid=27950] ppid=27948 vsize=921916 CPUtime=210.79
/proc/27950/stat : 27950 (VALCSP) R 27948 27950 27638 0 -1 4194304 230191 0 0 0 20977 102 0 0 25 0 1 0 180873615 944041984 230169 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 0 0 0
/proc/27950/statm: 230479 230169 65 8 0 230151 0
Current children cumulated CPU time (s) 210.79
Current children cumulated vsize (KiB) 921916

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 211.618
CPU time (s): 210.935
CPU user time (s): 209.778
CPU system time (s): 1.15682
CPU usage (%): 99.6773
Max. virtual memory (cumulated for all children) (KiB): 921916

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 209.778
system time used= 1.15682
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230191
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= 3383

runsolver used 0.220966 s user time and 0.561914 s system time

The end



Launcher Data (download as text)




Begin job on node3 on Tue Jan  9 06:39:40 UTC 2007


IDJOB= 233089
IDBENCH= 6581
FILE ID= node3/233089-1168324780

PBS_JOBID= 3502703

Free space on /tmp= 66559 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-20/os-taillard-20-100-7.xml
COMMAND LINE= /tmp/evaluation/233089-1168324780/VALCSP /tmp/evaluation/233089-1168324780/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-233089-1168324780 -o ROOT/results/node3/solver-233089-1168324780 -C 1800 -M 900  /tmp/evaluation/233089-1168324780/VALCSP /tmp/evaluation/233089-1168324780/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  b7da7eeabd87a2ed31538cf45df24a02

RANDOM SEED= 999074259

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		: 3000.279
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		: 3000.279
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:       1545320 kB
Buffers:         74992 kB
Cached:         301184 kB
SwapCached:          0 kB
Active:         286976 kB
Inactive:       158624 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1545320 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1164 kB
Writeback:           0 kB
Mapped:          89644 kB
Slab:            49920 kB
Committed_AS:  5281956 kB
PageTables:       2068 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 node3 on Tue Jan  9 06:43:13 UTC 2007