Trace number 235485

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) 117.165 118.214

General information on the benchmark

Nametaillard/os-taillard-10/
os-taillard-10-105-9.xml
MD5SUMbe590f06412d1b3dfd8fcbccbb49df5a
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 benchmark0.152976
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables100
Number of constraints900
Maximum constraint arity2
Maximum domain size634
Number of constraints which are defined in extension0
Number of constraints which are defined in intension900
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/node14/watcher-235485-1168338036 -o ROOT/results/node14/solver-235485-1168338036 -C 1800 -M 900 /tmp/evaluation/235485-1168338036/VALCSP /tmp/evaluation/235485-1168338036/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: 2.00 2.06 2.03 5/93 1128
/proc/meminfo: memFree=1331936/2055920 swapFree=4163780/4192956
[pid=1127] ppid=1125 vsize=1600 CPUtime=0
/proc/1127/stat : 1127 (VALCSP) R 1125 1127 1017 0 -1 4194304 153 0 0 0 0 0 0 0 20 0 1 0 182198545 1638400 131 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134545799 0 0 4096 0 0 0 0 17 1 0 0
/proc/1127/statm: 400 131 62 8 0 72 0

[startup+0.105102 s]
/proc/loadavg: 2.00 2.06 2.03 5/93 1128
/proc/meminfo: memFree=1331936/2055920 swapFree=4163780/4192956
[pid=1127] ppid=1125 vsize=4372 CPUtime=0.09
/proc/1127/stat : 1127 (VALCSP) R 1125 1127 1017 0 -1 4194304 832 0 0 0 9 0 0 0 20 0 1 0 182198545 4476928 810 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/1127/statm: 1093 810 64 8 0 765 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4372

[startup+0.513136 s]
/proc/loadavg: 2.00 2.06 2.03 5/93 1128
/proc/meminfo: memFree=1331936/2055920 swapFree=4163780/4192956
[pid=1127] ppid=1125 vsize=7144 CPUtime=0.49
/proc/1127/stat : 1127 (VALCSP) R 1125 1127 1017 0 -1 4194304 1531 0 0 0 49 0 0 0 24 0 1 0 182198545 7315456 1509 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/1127/statm: 1786 1509 64 8 0 1458 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 7144

[startup+1.33422 s]
/proc/loadavg: 2.00 2.06 2.03 3/93 1128
/proc/meminfo: memFree=1320544/2055920 swapFree=4163780/4192956
[pid=1127] ppid=1125 vsize=14008 CPUtime=1.31
/proc/1127/stat : 1127 (VALCSP) R 1125 1127 1017 0 -1 4194304 3254 0 0 0 130 1 0 0 25 0 1 0 182198545 14344192 3232 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/1127/statm: 3502 3232 64 8 0 3174 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 14008

[startup+2.97137 s]
/proc/loadavg: 2.00 2.06 2.03 3/93 1128
/proc/meminfo: memFree=1312224/2055920 swapFree=4163780/4192956
[pid=1127] ppid=1125 vsize=26416 CPUtime=2.94
/proc/1127/stat : 1127 (VALCSP) R 1125 1127 1017 0 -1 4194304 6348 0 0 0 292 2 0 0 25 0 1 0 182198545 27049984 6326 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/1127/statm: 6604 6326 64 8 0 6276 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 26416

[startup+6.25268 s]
/proc/loadavg: 2.00 2.06 2.03 3/93 1128
/proc/meminfo: memFree=1287008/2055920 swapFree=4163780/4192956
[pid=1127] ppid=1125 vsize=50572 CPUtime=6.19
/proc/1127/stat : 1127 (VALCSP) R 1125 1127 1017 0 -1 4194304 12392 0 0 0 615 4 0 0 25 0 1 0 182198545 51785728 12370 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/1127/statm: 12643 12370 64 8 0 12315 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 50572

[startup+12.7133 s]
/proc/loadavg: 2.00 2.06 2.03 3/93 1128
/proc/meminfo: memFree=1234336/2055920 swapFree=4163780/4192956
[pid=1127] ppid=1125 vsize=100204 CPUtime=12.58
/proc/1127/stat : 1127 (VALCSP) R 1125 1127 1017 0 -1 4194304 24788 0 0 0 1249 9 0 0 25 0 1 0 182198545 102608896 24766 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/1127/statm: 25051 24766 64 8 0 24723 0
Current children cumulated CPU time (s) 12.58
Current children cumulated vsize (KiB) 100204

[startup+25.5525 s]
/proc/loadavg: 2.00 2.05 2.03 3/93 1128
/proc/meminfo: memFree=1136672/2055920 swapFree=4163780/4192956
[pid=1127] ppid=1125 vsize=201712 CPUtime=25.31
/proc/1127/stat : 1127 (VALCSP) R 1125 1127 1017 0 -1 4194304 50177 0 0 0 2512 19 0 0 25 0 1 0 182198545 206553088 50155 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/1127/statm: 50428 50155 64 8 0 50100 0
Current children cumulated CPU time (s) 25.31
Current children cumulated vsize (KiB) 201712

[startup+51.2029 s]
/proc/loadavg: 2.00 2.05 2.02 3/93 1128
/proc/meminfo: memFree=927712/2055920 swapFree=4163780/4192956
[pid=1127] ppid=1125 vsize=407368 CPUtime=50.72
/proc/1127/stat : 1127 (VALCSP) R 1125 1127 1017 0 -1 4194304 101579 0 0 0 5032 40 0 0 25 0 1 0 182198545 417144832 101557 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/1127/statm: 101842 101557 64 8 0 101514 0
Current children cumulated CPU time (s) 50.72
Current children cumulated vsize (KiB) 407368

[startup+102.481 s]
/proc/loadavg: 2.00 2.04 2.02 3/93 1128
/proc/meminfo: memFree=536928/2055920 swapFree=4163780/4192956
[pid=1127] ppid=1125 vsize=800596 CPUtime=101.56
/proc/1127/stat : 1127 (VALCSP) R 1125 1127 1017 0 -1 4194304 199900 0 0 0 10076 80 0 0 25 0 1 0 182198545 819810304 199878 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/1127/statm: 200149 199878 64 8 0 199821 0
Current children cumulated CPU time (s) 101.56
Current children cumulated vsize (KiB) 800596



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+118.069 s]
/proc/loadavg: 2.00 2.04 2.02 3/93 1128
/proc/meminfo: memFree=409632/2055920 swapFree=4163780/4192956
[pid=1127] ppid=1125 vsize=921640 CPUtime=117.02
/proc/1127/stat : 1127 (VALCSP) R 1125 1127 1017 0 -1 4194304 230171 0 0 0 11609 93 0 0 25 0 1 0 182198545 943759360 230149 18446744073709551615 134512640 134548440 4294956720 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/1127/statm: 230410 230149 64 8 0 230082 0
Current children cumulated CPU time (s) 117.02
Current children cumulated vsize (KiB) 921640

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 118.214
CPU time (s): 117.165
CPU user time (s): 116.091
CPU system time (s): 1.07384
CPU usage (%): 99.1126
Max. virtual memory (cumulated for all children) (KiB): 921640

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 116.091
system time used= 1.07384
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230171
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= 4762

runsolver used 0.123981 s user time and 0.378942 s system time

The end



Launcher Data (download as text)




Begin job on node14 on Tue Jan  9 10:20:36 UTC 2007


IDJOB= 235485
IDBENCH= 6773
FILE ID= node14/235485-1168338036

PBS_JOBID= 3503128

Free space on /tmp= 66561 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-10/os-taillard-10-105-9.xml
COMMAND LINE= /tmp/evaluation/235485-1168338036/VALCSP /tmp/evaluation/235485-1168338036/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node14/watcher-235485-1168338036 -o ROOT/results/node14/solver-235485-1168338036 -C 1800 -M 900  /tmp/evaluation/235485-1168338036/VALCSP /tmp/evaluation/235485-1168338036/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  be590f06412d1b3dfd8fcbccbb49df5a

RANDOM SEED= 270110766

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		: 3000.227
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		: 3000.227
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:       1332416 kB
Buffers:         72128 kB
Cached:         397544 kB
SwapCached:       4084 kB
Active:         379484 kB
Inactive:       272892 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1332416 kB
SwapTotal:     4192956 kB
SwapFree:      4163780 kB
Dirty:             208 kB
Writeback:           0 kB
Mapped:         201268 kB
Slab:            55652 kB
Committed_AS:  6947812 kB
PageTables:       2508 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= 66561 MiB



End job on node14 on Tue Jan  9 10:22:34 UTC 2007