Trace number 209836

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 10.6574 10.7479

General information on the benchmark

Namefapp/fapp26-30/fapp26/
fapp26-2300-2.xml
MD5SUM5ab9fef4baf6ea85cbbe46e92584c6bf
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark6.70498
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables2300
Number of constraints24253
Maximum constraint arity2
Maximum domain size302
Number of constraints which are defined in extension0
Number of constraints which are defined in intension24253
Global constraints used (with number of constraints)

Solver Data (download as text)

0.11	c 
0.11	c Parsing xml file
0.11	c 	domains............... 0.03
0.11	c 	variables............. 0.11
0.16	c 	predicates............    0
0.16	c 	constraints........... 1.87
2.05	c Allocating memory
2.05	c 
2.05	c time limit = -1
2.05	c heuristic = dom/wdeg
2.05	c restart policy = No restart
2.05	c 
2.05	c Solving
2.05	c
10.66	s UNSATISFIABLE
10.66	d        UNSAT        69 BTS       8.5 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/node14/watcher-209836-1168194484 -o ROOT/results/node14/solver-209836-1168194484 -C 1800 -M 900 /tmp/evaluation/209836-1168194484/mistral/bin/solver /tmp/evaluation/209836-1168194484/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: 1.89 2.03 2.07 3/86 2206
/proc/meminfo: memFree=1492752/2055920 swapFree=4182236/4192956
[pid=2205] ppid=2203 vsize=540 CPUtime=0
/proc/2205/stat : 2205 (solver) R 2203 2205 1539 0 -1 4194304 35 0 0 0 0 0 0 0 20 0 1 0 167843410 552960 20 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 6863819 0 0 4096 0 0 0 0 17 1 0 0
/proc/2205/statm: 135 20 15 92 0 18 0

[startup+0.102784 s]
/proc/loadavg: 1.89 2.03 2.07 3/86 2206
/proc/meminfo: memFree=1492752/2055920 swapFree=4182236/4192956
[pid=2205] ppid=2203 vsize=55912 CPUtime=0.08
/proc/2205/stat : 2205 (solver) R 2203 2205 1539 0 -1 4194304 5680 0 0 0 5 3 0 0 19 0 1 0 167843410 57253888 5648 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134805376 0 0 4096 0 0 0 0 17 1 0 0
/proc/2205/statm: 13978 5648 694 92 0 12322 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 55912

[startup+0.510814 s]
/proc/loadavg: 1.89 2.03 2.07 3/86 2206
/proc/meminfo: memFree=1492752/2055920 swapFree=4182236/4192956
[pid=2205] ppid=2203 vsize=108496 CPUtime=0.49
/proc/2205/stat : 2205 (solver) R 2203 2205 1539 0 -1 4194304 11203 0 0 0 44 5 0 0 23 0 1 0 167843410 111099904 11171 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 7417653 0 0 4096 0 0 0 0 17 1 0 0
/proc/2205/statm: 27124 11171 709 92 0 25468 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 108496

[startup+1.33189 s]
/proc/loadavg: 1.89 2.03 2.07 3/86 2206
/proc/meminfo: memFree=1447568/2055920 swapFree=4182236/4192956
[pid=2205] ppid=2203 vsize=112520 CPUtime=1.3
/proc/2205/stat : 2205 (solver) R 2203 2205 1539 0 -1 4194304 12226 0 0 0 124 6 0 0 25 0 1 0 167843410 115220480 12194 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 7417609 0 0 4096 0 0 0 0 17 1 0 0
/proc/2205/statm: 28130 12194 709 92 0 26474 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 112520

[startup+2.96905 s]
/proc/loadavg: 1.89 2.03 2.07 3/86 2206
/proc/meminfo: memFree=1431888/2055920 swapFree=4182236/4192956
[pid=2205] ppid=2203 vsize=127356 CPUtime=2.93
/proc/2205/stat : 2205 (solver) R 2203 2205 1539 0 -1 4194304 15890 0 0 0 285 8 0 0 25 0 1 0 167843410 130412544 15858 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134708945 0 0 4096 0 0 0 0 17 1 0 0
/proc/2205/statm: 31839 15858 717 92 0 30183 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 127356

[startup+6.25336 s]
/proc/loadavg: 1.90 2.03 2.07 3/86 2206
/proc/meminfo: memFree=1431952/2055920 swapFree=4182236/4192956
[pid=2205] ppid=2203 vsize=127356 CPUtime=6.19
/proc/2205/stat : 2205 (solver) R 2203 2205 1539 0 -1 4194304 15890 0 0 0 611 8 0 0 25 0 1 0 167843410 130412544 15858 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134709313 0 0 4096 0 0 0 0 17 1 0 0
/proc/2205/statm: 31839 15858 717 92 0 30183 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 127356

Child status: 0
Real time (s): 10.7479
CPU time (s): 10.6574
CPU user time (s): 10.5664
CPU system time (s): 0.090986
CPU usage (%): 99.1576
Max. virtual memory (cumulated for all children) (KiB): 127356

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.5664
system time used= 0.090986
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15900
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= 13
involuntary context switches= 280

runsolver used 0.009998 s user time and 0.033994 s system time

The end

Launcher Data (download as text)

Begin job on node14 on Sun Jan  7 18:28:05 UTC 2007


IDJOB= 209836
IDBENCH= 4563
FILE ID= node14/209836-1168194484

PBS_JOBID= 3479432

Free space on /tmp= 66334 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp26-30/fapp26/fapp26-2300-2.xml
COMMAND LINE= /tmp/evaluation/209836-1168194484/mistral/bin/solver /tmp/evaluation/209836-1168194484/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node14/watcher-209836-1168194484 -o ROOT/results/node14/solver-209836-1168194484 -C 1800 -M 900  /tmp/evaluation/209836-1168194484/mistral/bin/solver /tmp/evaluation/209836-1168194484/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  5ab9fef4baf6ea85cbbe46e92584c6bf

RANDOM SEED= 539448752

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:       1493232 kB
Buffers:         47832 kB
Cached:         331872 kB
SwapCached:       4156 kB
Active:         234048 kB
Inactive:       259920 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1493232 kB
SwapTotal:     4192956 kB
SwapFree:      4182236 kB
Dirty:            6512 kB
Writeback:           0 kB
Mapped:         126648 kB
Slab:            53444 kB
Committed_AS:  5390052 kB
PageTables:       2372 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= 66334 MiB



End job on node14 on Sun Jan  7 18:28:16 UTC 2007