Trace number 209868

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 10.6784 10.7691

General information on the benchmark

Namefapp/fapp26-30/fapp26/
fapp26-2300-0.xml
MD5SUMaa878ecdf13a98d2376207a1052bf1ce
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 benchmark6.71798
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)

0.10	c 
0.10	c Parsing xml file
0.10	c 	domains............... 0.03
0.10	c 	variables............. 0.11
0.15	c 	predicates............    0
0.15	c 	constraints........... 1.87
2.03	c Allocating memory
2.03	c 
2.03	c time limit = -1
2.03	c heuristic = dom/wdeg
2.03	c restart policy = No restart
2.03	c 
2.03	c Solving
2.03	c
10.69	s UNSATISFIABLE
10.69	d        UNSAT        69 BTS       8.6 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/node40/watcher-209868-1168194664 -o ROOT/results/node40/solver-209868-1168194664 -C 1800 -M 900 /tmp/evaluation/209868-1168194664/mistral/bin/solver /tmp/evaluation/209868-1168194664/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: 2.00 2.00 2.00 2/73 27583
/proc/meminfo: memFree=1681920/2055920 swapFree=4192812/4192956
[pid=27582] ppid=27580 vsize=540 CPUtime=0
/proc/27582/stat : 27582 (solver) R 27580 27582 26216 0 -1 4194304 41 0 0 0 0 0 0 0 19 0 1 0 167865872 552960 26 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 6910756 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/27582/statm: 135 26 21 92 0 18 0

[startup+0.103517 s]
/proc/loadavg: 2.00 2.00 2.00 2/73 27583
/proc/meminfo: memFree=1681920/2055920 swapFree=4192812/4192956
[pid=27582] ppid=27580 vsize=61464 CPUtime=0.08
/proc/27582/stat : 27582 (solver) R 27580 27582 26216 0 -1 4194304 6235 0 0 0 6 2 0 0 19 0 1 0 167865872 62939136 6203 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 7345787 0 0 4096 0 0 0 0 17 1 0 0
/proc/27582/statm: 15366 6203 694 92 0 13710 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 61464

[startup+0.511562 s]
/proc/loadavg: 2.00 2.00 2.00 2/73 27583
/proc/meminfo: memFree=1681920/2055920 swapFree=4192812/4192956
[pid=27582] ppid=27580 vsize=108496 CPUtime=0.49
/proc/27582/stat : 27582 (solver) R 27580 27582 26216 0 -1 4194304 11209 0 0 0 44 5 0 0 23 0 1 0 167865872 111099904 11177 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134575847 0 0 4096 0 0 0 0 17 1 0 0
/proc/27582/statm: 27124 11177 709 92 0 25468 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 108496

[startup+1.33267 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 27583
/proc/meminfo: memFree=1636672/2055920 swapFree=4192812/4192956
[pid=27582] ppid=27580 vsize=112652 CPUtime=1.31
/proc/27582/stat : 27582 (solver) R 27580 27582 26216 0 -1 4194304 12252 0 0 0 125 6 0 0 25 0 1 0 167865872 115355648 12220 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134560678 0 0 4096 0 0 0 0 17 1 0 0
/proc/27582/statm: 28163 12220 709 92 0 26507 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 112652

[startup+2.97187 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 27583
/proc/meminfo: memFree=1620800/2055920 swapFree=4192812/4192956
[pid=27582] ppid=27580 vsize=127356 CPUtime=2.93
/proc/27582/stat : 27582 (solver) R 27580 27582 26216 0 -1 4194304 15890 0 0 0 285 8 0 0 25 0 1 0 167865872 130412544 15858 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134709332 0 0 4096 0 0 0 0 17 1 0 0
/proc/27582/statm: 31839 15858 717 92 0 30183 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 127356

[startup+6.2543 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 27583
/proc/meminfo: memFree=1620800/2055920 swapFree=4192812/4192956
[pid=27582] ppid=27580 vsize=127356 CPUtime=6.19
/proc/27582/stat : 27582 (solver) R 27580 27582 26216 0 -1 4194304 15890 0 0 0 611 8 0 0 25 0 1 0 167865872 130412544 15858 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134638378 0 0 4096 0 0 0 0 17 1 0 0
/proc/27582/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): 10.7691
CPU time (s): 10.6784
CPU user time (s): 10.5844
CPU system time (s): 0.093985
CPU usage (%): 99.1572
Max. virtual memory (cumulated for all children) (KiB): 127356

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.5844
system time used= 0.093985
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= 275

runsolver used 0.014997 s user time and 0.029995 s system time

The end

Launcher Data (download as text)

Begin job on node40 on Sun Jan  7 18:31:05 UTC 2007


IDJOB= 209868
IDBENCH= 4565
FILE ID= node40/209868-1168194664

PBS_JOBID= 3479380

Free space on /tmp= 66542 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp26-30/fapp26/fapp26-2300-0.xml
COMMAND LINE= /tmp/evaluation/209868-1168194664/mistral/bin/solver /tmp/evaluation/209868-1168194664/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node40/watcher-209868-1168194664 -o ROOT/results/node40/solver-209868-1168194664 -C 1800 -M 900  /tmp/evaluation/209868-1168194664/mistral/bin/solver /tmp/evaluation/209868-1168194664/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  aa878ecdf13a98d2376207a1052bf1ce

RANDOM SEED= 118242283

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		: 3000.239
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		: 3000.239
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:       1682400 kB
Buffers:         21680 kB
Cached:         216456 kB
SwapCached:          0 kB
Active:         182204 kB
Inactive:       137588 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1682400 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            6416 kB
Writeback:           0 kB
Mapped:          95268 kB
Slab:            39124 kB
Committed_AS:  3525384 kB
PageTables:       1976 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= 66542 MiB



End job on node40 on Sun Jan  7 18:31:16 UTC 2007