Trace number 218217

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
Mistral 2006-12-04UNSAT 170.881 172.159

General information on the benchmark

Namerandom/rand-3-20-20/
rand-3-20-20-60-632-11_ext.xml
MD5SUM88f1fadd77f105b78bc8652c5b5edcb2
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark170.881
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables20
Number of constraints60
Maximum constraint arity3
Maximum domain size20
Number of constraints which are defined in extension60
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.20	c 
0.20	c Parsing xml file
0.20	c 	domains...............    0
0.20	c 	variables.............    0
0.20	c 	relations............. 0.43
0.44	c 	constraints........... 0.03
0.47	c Allocating memory
0.47	c 
0.47	c time limit = -1
0.47	c heuristic = dom/wdeg
0.47	c restart policy = No restart
0.47	c 
0.47	c Solving
0.47	c
172.15	s UNSATISFIABLE
172.15	d        UNSAT    482257 BTS   1.7e+02 s

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node18/watcher-218217-1168251803 -o ROOT/results/node18/solver-218217-1168251803 -C 1800 -M 900 /tmp/evaluation/218217-1168251803/mistral/bin/solver /tmp/evaluation/218217-1168251803/unknown.xml -v 1 

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: 1.92 1.99 1.99 3/87 21899
/proc/meminfo: memFree=1505480/2055920 swapFree=4192812/4192956
[pid=21898] ppid=21896 vsize=444 CPUtime=0
/proc/21898/stat : 21898 (solver) R 21896 21898 19843 0 -1 4194304 17 0 0 0 0 0 0 0 20 0 1 0 173575157 454656 2 18446744073709551615 0 0 4294957064 18446744073709551615 227848809767 0 0 4096 0 0 0 0 17 1 0 0
/proc/21898/statm: 111 2 0 0 0 17 0

[startup+0.102683 s]
/proc/loadavg: 1.92 1.99 1.99 3/87 21899
/proc/meminfo: memFree=1505480/2055920 swapFree=4192812/4192956
[pid=21898] ppid=21896 vsize=7764 CPUtime=0.09
/proc/21898/stat : 21898 (solver) R 21896 21898 19843 0 -1 4194304 1016 0 0 0 9 0 0 0 18 0 1 0 173575157 7950336 984 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4159427613 0 0 4096 0 0 0 0 17 1 0 0
/proc/21898/statm: 1941 984 692 92 0 285 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7764

[startup+0.51272 s]
/proc/loadavg: 1.92 1.99 1.99 3/87 21899
/proc/meminfo: memFree=1505480/2055920 swapFree=4192812/4192956
[pid=21898] ppid=21896 vsize=10584 CPUtime=0.5
/proc/21898/stat : 21898 (solver) R 21896 21898 19843 0 -1 4194304 1742 0 0 0 50 0 0 0 22 0 1 0 173575157 10838016 1710 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134790402 0 0 4096 0 0 0 0 17 1 0 0
/proc/21898/statm: 2646 1710 709 92 0 990 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 10584

[startup+1.3388 s]
/proc/loadavg: 1.92 1.99 1.99 3/87 21899
/proc/meminfo: memFree=1501256/2055920 swapFree=4192812/4192956
[pid=21898] ppid=21896 vsize=10584 CPUtime=1.31
/proc/21898/stat : 21898 (solver) R 21896 21898 19843 0 -1 4194304 1742 0 0 0 131 0 0 0 25 0 1 0 173575157 10838016 1710 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637794 0 0 4096 0 0 0 0 17 1 0 0
/proc/21898/statm: 2646 1710 709 92 0 990 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 10584

[startup+2.97596 s]
/proc/loadavg: 1.92 1.99 1.99 3/87 21899
/proc/meminfo: memFree=1501000/2055920 swapFree=4192812/4192956
[pid=21898] ppid=21896 vsize=10584 CPUtime=2.93
/proc/21898/stat : 21898 (solver) R 21896 21898 19843 0 -1 4194304 1742 0 0 0 293 0 0 0 25 0 1 0 173575157 10838016 1710 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134727318 0 0 4096 0 0 0 0 17 1 0 0
/proc/21898/statm: 2646 1710 709 92 0 990 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 10584

[startup+6.25527 s]
/proc/loadavg: 1.93 1.99 1.99 3/87 21899
/proc/meminfo: memFree=1500680/2055920 swapFree=4192812/4192956
[pid=21898] ppid=21896 vsize=10584 CPUtime=6.19
/proc/21898/stat : 21898 (solver) R 21896 21898 19843 0 -1 4194304 1742 0 0 0 619 0 0 0 25 0 1 0 173575157 10838016 1710 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637409 0 0 4096 0 0 0 0 17 1 0 0
/proc/21898/statm: 2646 1710 709 92 0 990 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 10584

[startup+12.7159 s]
/proc/loadavg: 1.93 1.99 1.99 3/87 21899
/proc/meminfo: memFree=1500296/2055920 swapFree=4192812/4192956
[pid=21898] ppid=21896 vsize=10584 CPUtime=12.6
/proc/21898/stat : 21898 (solver) R 21896 21898 19843 0 -1 4194304 1742 0 0 0 1260 0 0 0 25 0 1 0 173575157 10838016 1710 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637293 0 0 4096 0 0 0 0 17 1 0 0
/proc/21898/statm: 2646 1710 709 92 0 990 0
Current children cumulated CPU time (s) 12.6
Current children cumulated vsize (KiB) 10584

[startup+25.5261 s]
/proc/loadavg: 1.95 1.99 1.99 3/87 21899
/proc/meminfo: memFree=1499720/2055920 swapFree=4192812/4192956
[pid=21898] ppid=21896 vsize=10584 CPUtime=25.32
/proc/21898/stat : 21898 (solver) R 21896 21898 19843 0 -1 4194304 1742 0 0 0 2532 0 0 0 25 0 1 0 173575157 10838016 1710 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134722299 0 0 4096 0 0 0 0 17 1 0 0
/proc/21898/statm: 2646 1710 709 92 0 990 0
Current children cumulated CPU time (s) 25.32
Current children cumulated vsize (KiB) 10584

[startup+51.1696 s]
/proc/loadavg: 1.96 1.99 1.99 3/87 21899
/proc/meminfo: memFree=1497736/2055920 swapFree=4192812/4192956
[pid=21898] ppid=21896 vsize=10584 CPUtime=50.78
/proc/21898/stat : 21898 (solver) R 21896 21898 19843 0 -1 4194304 1742 0 0 0 5077 1 0 0 25 0 1 0 173575157 10838016 1710 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134790620 0 0 4096 0 0 0 0 17 1 0 0
/proc/21898/statm: 2646 1710 709 92 0 990 0
Current children cumulated CPU time (s) 50.78
Current children cumulated vsize (KiB) 10584

[startup+102.424 s]
/proc/loadavg: 1.98 1.99 1.99 3/87 21899
/proc/meminfo: memFree=1493768/2055920 swapFree=4192812/4192956
[pid=21898] ppid=21896 vsize=10584 CPUtime=101.65
/proc/21898/stat : 21898 (solver) R 21896 21898 19843 0 -1 4194304 1742 0 0 0 10164 1 0 0 25 0 1 0 173575157 10838016 1710 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637498 0 0 4096 0 0 0 0 17 1 0 0
/proc/21898/statm: 2646 1710 709 92 0 990 0
Current children cumulated CPU time (s) 101.65
Current children cumulated vsize (KiB) 10584

[startup+162.495 s]
/proc/loadavg: 1.99 1.99 1.99 3/87 21899
/proc/meminfo: memFree=1490824/2055920 swapFree=4192812/4192956
[pid=21898] ppid=21896 vsize=10584 CPUtime=161.28
/proc/21898/stat : 21898 (solver) R 21896 21898 19843 0 -1 4194304 1742 0 0 0 16126 2 0 0 25 0 1 0 173575157 10838016 1710 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134637236 0 0 4096 0 0 0 0 17 1 0 0
/proc/21898/statm: 2646 1710 709 92 0 990 0
Current children cumulated CPU time (s) 161.28
Current children cumulated vsize (KiB) 10584

Child status: 0
Real time (s): 172.159
CPU time (s): 170.881
CPU user time (s): 170.859
CPU system time (s): 0.021996
CPU usage (%): 99.2578
Max. virtual memory (cumulated for all children) (KiB): 10584

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 170.859
system time used= 0.021996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1752
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= 12
involuntary context switches= 6709

runsolver used 0.145977 s user time and 0.472928 s system time

The end

Launcher Data (download as text)

Begin job on node18 on Mon Jan  8 10:23:25 UTC 2007


IDJOB= 218217
IDBENCH= 5213
FILE ID= node18/218217-1168251803

PBS_JOBID= 3481645

Free space on /tmp= 66291 MiB

BENCH NAME= HOME/pub/bench/CPAI06/random/rand-3-20-20/rand-3-20-20-60-632-11_ext.xml
COMMAND LINE= /tmp/evaluation/218217-1168251803/mistral/bin/solver /tmp/evaluation/218217-1168251803/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node18/watcher-218217-1168251803 -o ROOT/results/node18/solver-218217-1168251803 -C 1800 -M 900  /tmp/evaluation/218217-1168251803/mistral/bin/solver /tmp/evaluation/218217-1168251803/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  88f1fadd77f105b78bc8652c5b5edcb2

RANDOM SEED= 735944801

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		: 3000.231
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		: 3000.231
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:       1505896 kB
Buffers:         70468 kB
Cached:         222748 kB
SwapCached:          0 kB
Active:         342760 kB
Inactive:       150268 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1505896 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4368 kB
Writeback:           0 kB
Mapped:         219888 kB
Slab:            41748 kB
Committed_AS:  5150568 kB
PageTables:       2352 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= 66291 MiB



End job on node18 on Mon Jan  8 10:26:17 UTC 2007