Trace number 237236

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 3.0Wrong Cert. 21.5007 21.7039

DiagnosticValue
CHECKS21968600
NODES96

General information on the benchmark

Namezhou/
queens1.xml
MD5SUM726185241a7b95d15ca46fa1333f998a
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 benchmark0.448931
SatisfiableYES
(Un)Satisfiability was proved
Number of variables96
Number of constraints13680
Maximum constraint arity2
Maximum domain size96
Number of constraints which are defined in extension0
Number of constraints which are defined in intension13680
Global constraints used (with number of constraints)

Solver Data (download as text)

21.61	s SATISFIABLE
21.61	v 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 
21.61	d CHECKS 2.19686e+07
21.61	d NODES 96
21.61

Verifier Data (download as text)

ERROR: constraint C1 is unsatisfied
Predicate is 
((parm[0]+1)!=parm[1])
parm[0]=1
parm[1]=2

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node24/watcher-237236-1168347121 -o ROOT/results/node24/solver-237236-1168347121 -C 1800 -M 900 /tmp/evaluation/237236-1168347121/VALCSP /tmp/evaluation/237236-1168347121/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 2.00 1.94 5/87 1039
/proc/meminfo: memFree=1799784/2055920 swapFree=4192800/4192956
[pid=1038] ppid=1036 vsize=18540 CPUtime=0
/proc/1038/stat : 1038 (runsolver) R 1036 1038 32551 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 183107418 18984960 279 18446744073709551615 4194304 4267372 548682069088 18446744073709551615 237788261671 0 0 4096 24578 0 0 0 17 1 0 0
/proc/1038/statm: 4635 279 244 17 0 2626 0

[startup+0.108017 s]
/proc/loadavg: 2.00 2.00 1.94 5/87 1039
/proc/meminfo: memFree=1799784/2055920 swapFree=4192800/4192956
[pid=1038] ppid=1036 vsize=5428 CPUtime=0.09
/proc/1038/stat : 1038 (VALCSP) R 1036 1038 32551 0 -1 4194304 1110 0 0 0 9 0 0 0 20 0 1 0 183107418 5558272 1088 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 3044528 0 0 4096 0 0 0 0 17 1 0 0
/proc/1038/statm: 1357 1088 63 8 0 1029 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5428

[startup+0.516057 s]
/proc/loadavg: 2.00 2.00 1.94 5/87 1039
/proc/meminfo: memFree=1799784/2055920 swapFree=4192800/4192956
[pid=1038] ppid=1036 vsize=16840 CPUtime=0.5
/proc/1038/stat : 1038 (VALCSP) R 1036 1038 32551 0 -1 4194304 3876 0 0 0 48 2 0 0 24 0 1 0 183107418 17244160 3854 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530960 0 0 4096 0 0 0 0 17 1 0 0
/proc/1038/statm: 4210 3854 65 8 0 3882 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 16840

[startup+1.33715 s]
/proc/loadavg: 2.00 2.00 1.94 3/87 1039
/proc/meminfo: memFree=1769000/2055920 swapFree=4192800/4192956
[pid=1038] ppid=1036 vsize=37564 CPUtime=1.31
/proc/1038/stat : 1038 (VALCSP) R 1036 1038 32551 0 -1 4194304 9056 0 0 0 127 4 0 0 25 0 1 0 183107418 38465536 9034 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530244 0 0 4096 0 0 0 0 17 1 0 0
/proc/1038/statm: 9391 9034 65 8 0 9063 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 37564

[startup+2.97432 s]
/proc/loadavg: 2.00 2.00 1.94 3/87 1039
/proc/meminfo: memFree=1740392/2055920 swapFree=4192800/4192956
[pid=1038] ppid=1036 vsize=79012 CPUtime=2.93
/proc/1038/stat : 1038 (VALCSP) R 1036 1038 32551 0 -1 4194304 19419 0 0 0 286 7 0 0 25 0 1 0 183107418 80908288 19397 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530867 0 0 4096 0 0 0 0 17 1 0 0
/proc/1038/statm: 19753 19397 65 8 0 19425 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 79012

[startup+6.26268 s]
/proc/loadavg: 2.00 2.00 1.94 3/87 1039
/proc/meminfo: memFree=1654056/2055920 swapFree=4192800/4192956
[pid=1038] ppid=1036 vsize=162572 CPUtime=6.2
/proc/1038/stat : 1038 (VALCSP) R 1036 1038 32551 0 -1 4194304 40343 0 0 0 604 16 0 0 25 0 1 0 183107418 166473728 40321 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134531029 0 0 4096 0 0 0 0 17 1 0 0
/proc/1038/statm: 40643 40321 65 8 0 40315 0
Current children cumulated CPU time (s) 6.2
Current children cumulated vsize (KiB) 162572

[startup+12.7194 s]
/proc/loadavg: 2.00 2.00 1.94 3/87 1039
/proc/meminfo: memFree=1482600/2055920 swapFree=4192800/4192956
[pid=1038] ppid=1036 vsize=325756 CPUtime=12.59
/proc/1038/stat : 1038 (VALCSP) R 1036 1038 32551 0 -1 4194304 81163 0 0 0 1226 33 0 0 25 0 1 0 183107418 333574144 81141 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/1038/statm: 81439 81141 65 8 0 81111 0
Current children cumulated CPU time (s) 12.59
Current children cumulated vsize (KiB) 325756

Child status: 0
Real time (s): 21.7039
CPU time (s): 21.5007
CPU user time (s): 20.8628
CPU system time (s): 0.637903
CPU usage (%): 99.0639
Max. virtual memory (cumulated for all children) (KiB): 525156

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 20.8628
system time used= 0.637903
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 131066
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= 8
involuntary context switches= 862

runsolver used 0.033994 s user time and 0.069989 s system time

The end

Launcher Data (download as text)

Begin job on node24 on Tue Jan  9 12:52:02 UTC 2007


IDJOB= 237236
IDBENCH= 6908
FILE ID= node24/237236-1168347121

PBS_JOBID= 3503456

Free space on /tmp= 66472 MiB

BENCH NAME= HOME/pub/bench/CPAI06/zhou/queens1.xml
COMMAND LINE= /tmp/evaluation/237236-1168347121/VALCSP /tmp/evaluation/237236-1168347121/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node24/watcher-237236-1168347121 -o ROOT/results/node24/solver-237236-1168347121 -C 1800 -M 900  /tmp/evaluation/237236-1168347121/VALCSP /tmp/evaluation/237236-1168347121/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  726185241a7b95d15ca46fa1333f998a

RANDOM SEED= 353395070

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		: 3000.234
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		: 3000.234
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:       1800264 kB
Buffers:         26172 kB
Cached:          98948 kB
SwapCached:          0 kB
Active:         143888 kB
Inactive:        58552 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1800264 kB
SwapTotal:     4192956 kB
SwapFree:      4192800 kB
Dirty:            3820 kB
Writeback:           0 kB
Mapped:          95308 kB
Slab:            37944 kB
Committed_AS:  4060248 kB
PageTables:       2368 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= 66472 MiB



End job on node24 on Tue Jan  9 12:52:23 UTC 2007