Trace number 233518

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) 163.886 165.047

General information on the benchmark

Nametaillard/os-taillard-15/
os-taillard-15-105-7.xml
MD5SUMf2ccb8b31fd9f21bbe76b41ee826c770
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 benchmark0.374942
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables225
Number of constraints3150
Maximum constraint arity2
Maximum domain size962
Number of constraints which are defined in extension0
Number of constraints which are defined in intension3150
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/node29/watcher-233518-1168326702 -o ROOT/results/node29/solver-233518-1168326702 -C 1800 -M 900 /tmp/evaluation/233518-1168326702/VALCSP /tmp/evaluation/233518-1168326702/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: 2.85 2.47 2.07 5/97 32297
/proc/meminfo: memFree=746112/2055920 swapFree=4191880/4192956
[pid=32296] ppid=32294 vsize=1732 CPUtime=0
/proc/32296/stat : 32296 (VALCSP) R 32294 32296 30866 0 -1 4194304 170 0 0 0 0 0 0 0 20 0 1 0 181064271 1773568 148 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134544456 0 0 4096 0 0 0 0 17 1 0 0
/proc/32296/statm: 433 148 62 8 0 105 0

[startup+0.104855 s]
/proc/loadavg: 2.85 2.47 2.07 5/97 32297
/proc/meminfo: memFree=746112/2055920 swapFree=4191880/4192956
[pid=32296] ppid=32294 vsize=10180 CPUtime=0.09
/proc/32296/stat : 32296 (VALCSP) R 32294 32296 30866 0 -1 4194304 2285 0 0 0 8 1 0 0 20 0 1 0 181064271 10424320 2263 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530948 0 0 4096 0 0 0 0 17 1 0 0
/proc/32296/statm: 2545 2263 64 8 0 2217 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10180

[startup+0.51288 s]
/proc/loadavg: 2.85 2.47 2.07 5/97 32297
/proc/meminfo: memFree=746112/2055920 swapFree=4191880/4192956
[pid=32296] ppid=32294 vsize=10180 CPUtime=0.5
/proc/32296/stat : 32296 (VALCSP) R 32294 32296 30866 0 -1 4194304 2285 0 0 0 49 1 0 0 24 0 1 0 181064271 10424320 2263 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/32296/statm: 2545 2263 64 8 0 2217 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 10180

[startup+1.33393 s]
/proc/loadavg: 2.85 2.47 2.07 3/97 32297
/proc/meminfo: memFree=734016/2055920 swapFree=4191880/4192956
[pid=32296] ppid=32294 vsize=16648 CPUtime=1.3
/proc/32296/stat : 32296 (VALCSP) R 32294 32296 30866 0 -1 4194304 3890 0 0 0 129 1 0 0 25 0 1 0 181064271 17047552 3868 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/32296/statm: 4162 3868 64 8 0 3834 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 16648

[startup+2.97103 s]
/proc/loadavg: 2.78 2.46 2.07 3/97 32297
/proc/meminfo: memFree=727552/2055920 swapFree=4191880/4192956
[pid=32296] ppid=32294 vsize=26152 CPUtime=2.93
/proc/32296/stat : 32296 (VALCSP) R 32294 32296 30866 0 -1 4194304 6280 0 0 0 291 2 0 0 25 0 1 0 181064271 26779648 6258 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/32296/statm: 6538 6258 64 8 0 6210 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 26152

[startup+6.25624 s]
/proc/loadavg: 2.78 2.46 2.07 3/97 32297
/proc/meminfo: memFree=708096/2055920 swapFree=4191880/4192956
[pid=32296] ppid=32294 vsize=42652 CPUtime=6.19
/proc/32296/stat : 32296 (VALCSP) R 32294 32296 30866 0 -1 4194304 10402 0 0 0 615 4 0 0 25 0 1 0 181064271 43675648 10380 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/32296/statm: 10663 10380 64 8 0 10335 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 42652

[startup+12.7186 s]
/proc/loadavg: 2.66 2.44 2.07 3/97 32297
/proc/meminfo: memFree=672896/2055920 swapFree=4191880/4192956
[pid=32296] ppid=32294 vsize=78028 CPUtime=12.59
/proc/32296/stat : 32296 (VALCSP) R 32294 32296 30866 0 -1 4194304 19237 0 0 0 1252 7 0 0 25 0 1 0 181064271 79900672 19215 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/32296/statm: 19507 19215 64 8 0 19179 0
Current children cumulated CPU time (s) 12.59
Current children cumulated vsize (KiB) 78028

[startup+25.5564 s]
/proc/loadavg: 2.56 2.43 2.07 3/97 32297
/proc/meminfo: memFree=604864/2055920 swapFree=4191880/4192956
[pid=32296] ppid=32294 vsize=145612 CPUtime=25.29
/proc/32296/stat : 32296 (VALCSP) R 32294 32296 30866 0 -1 4194304 36141 0 0 0 2515 14 0 0 25 0 1 0 181064271 149106688 36119 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/32296/statm: 36403 36119 64 8 0 36075 0
Current children cumulated CPU time (s) 25.29
Current children cumulated vsize (KiB) 145612

[startup+51.211 s]
/proc/loadavg: 2.58 2.44 2.08 4/97 32297
/proc/meminfo: memFree=463552/2055920 swapFree=4191880/4192956
[pid=32296] ppid=32294 vsize=279196 CPUtime=50.7
/proc/32296/stat : 32296 (VALCSP) R 32294 32296 30866 0 -1 4194304 69521 0 0 0 5040 30 0 0 25 0 1 0 181064271 285896704 69499 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/32296/statm: 69799 69499 64 8 0 69471 0
Current children cumulated CPU time (s) 50.7
Current children cumulated vsize (KiB) 279196

[startup+102.511 s]
/proc/loadavg: 2.75 2.51 2.12 4/94 32370
/proc/meminfo: memFree=684568/2055920 swapFree=4191880/4192956
[pid=32296] ppid=32294 vsize=568804 CPUtime=101.71
/proc/32296/stat : 32296 (VALCSP) R 32294 32296 30866 0 -1 4194304 141944 0 0 0 10105 66 0 0 25 0 1 0 181064271 582455296 141922 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530220 0 0 4096 0 0 0 0 17 0 0 0
/proc/32296/statm: 142201 141922 64 8 0 141873 0
Current children cumulated CPU time (s) 101.71
Current children cumulated vsize (KiB) 568804

[startup+162.527 s]
/proc/loadavg: 2.82 2.57 2.16 4/94 32370
/proc/meminfo: memFree=186584/2055920 swapFree=4191880/4192956
[pid=32296] ppid=32294 vsize=907648 CPUtime=161.39
/proc/32296/stat : 32296 (VALCSP) R 32294 32296 30866 0 -1 4194304 226634 0 0 0 16030 109 0 0 25 0 1 0 181064271 929431552 226612 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 0 0 0
/proc/32296/statm: 226912 226612 64 8 0 226584 0
Current children cumulated CPU time (s) 161.39
Current children cumulated vsize (KiB) 907648



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+164.884 s]
/proc/loadavg: 2.83 2.57 2.17 4/94 32370
/proc/meminfo: memFree=154200/2055920 swapFree=4191880/4192956
[pid=32296] ppid=32294 vsize=924280 CPUtime=163.73
/proc/32296/stat : 32296 (VALCSP) R 32294 32296 30866 0 -1 4194304 230794 0 0 0 16262 111 0 0 25 0 1 0 181064271 946462720 230772 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 0 0 0
/proc/32296/statm: 231070 230772 64 8 0 230742 0
Current children cumulated CPU time (s) 163.73
Current children cumulated vsize (KiB) 924280

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 165.047
CPU time (s): 163.886
CPU user time (s): 162.621
CPU system time (s): 1.26481
CPU usage (%): 99.2964
Max. virtual memory (cumulated for all children) (KiB): 924280

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 162.621
system time used= 1.26481
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230794
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= 6478

runsolver used 0.168974 s user time and 0.573912 s system time

The end



Launcher Data (download as text)




Begin job on node29 on Tue Jan  9 07:11:42 UTC 2007


IDJOB= 233518
IDBENCH= 6613
FILE ID= node29/233518-1168326702

PBS_JOBID= 3502946

Free space on /tmp= 66558 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-15/os-taillard-15-105-7.xml
COMMAND LINE= /tmp/evaluation/233518-1168326702/VALCSP /tmp/evaluation/233518-1168326702/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node29/watcher-233518-1168326702 -o ROOT/results/node29/solver-233518-1168326702 -C 1800 -M 900  /tmp/evaluation/233518-1168326702/VALCSP /tmp/evaluation/233518-1168326702/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  f2ccb8b31fd9f21bbe76b41ee826c770

RANDOM SEED= 329514210

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		: 3000.241
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		: 3000.241
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:        746528 kB
Buffers:         12940 kB
Cached:         456400 kB
SwapCached:        268 kB
Active:         824320 kB
Inactive:       429836 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        746528 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:             572 kB
Writeback:           0 kB
Mapped:         812996 kB
Slab:            38120 kB
Committed_AS:  4751040 kB
PageTables:       3872 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= 66558 MiB



End job on node29 on Tue Jan  9 07:14:27 UTC 2007