Trace number 367682

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
MXC 2007-02-08UNSAT 0.19497 0.207122

General information on the benchmark

Nameindustrial/babic/xinetd/
xinetd_vc56703.cnf
MD5SUM09053ffc48c8fbc3352a0ce4d89c2bbb
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.19497
Satisfiable
(Un)Satisfiability was proved
Number of variables110923
Number of clauses286428
Sum of the clauses size694958
Maximum clause length3
Minimum clause length1
Number of clauses of size 113085
Number of clauses of size 2138156
Number of clauses of size 3135187
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.18/0.20	c MXC attempting /tmp/evaluation/367682-1177551556/instance-367682-1177551556.cnf
0.18/0.20	c 0.180s elapsed
0.18/0.20	c restarts: 0
0.18/0.20	c decisions: 0
0.18/0.20	c propagations: 23544
0.18/0.20	c conflicts: 0
0.18/0.20	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node14/watcher-367682-1177551556 -o ROOT/results/node14/solver-367682-1177551556 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/367682-1177551556/mxc /tmp/evaluation/367682-1177551556/instance-367682-1177551556.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.91 0.98 0.93 3/77 1622
/proc/meminfo: memFree=1711048/2055920 swapFree=4148824/4192956
[pid=1622] ppid=1620 vsize=5916 CPUtime=0
/proc/1622/stat : 1622 (mxc) R 1620 1622 1135 0 -1 4194304 769 0 0 0 0 0 0 0 18 0 1 0 203073388 6057984 754 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134550509 0 0 4096 0 0 0 0 17 1 0 0
/proc/1622/statm: 1479 760 42 122 0 1353 0

[startup+0.0833429 s]
/proc/loadavg: 0.91 0.98 0.93 3/77 1622
/proc/meminfo: memFree=1711048/2055920 swapFree=4148824/4192956
[pid=1622] ppid=1620 vsize=20776 CPUtime=0.07
/proc/1622/stat : 1622 (mxc) R 1620 1622 1135 0 -1 4194304 4497 0 0 0 6 1 0 0 18 0 1 0 203073388 21274624 4482 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/1622/statm: 5194 4482 46 122 0 5068 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 20776

[startup+0.102335 s]
/proc/loadavg: 0.91 0.98 0.93 3/77 1622
/proc/meminfo: memFree=1711048/2055920 swapFree=4148824/4192956
[pid=1622] ppid=1620 vsize=21568 CPUtime=0.1
/proc/1622/stat : 1622 (mxc) R 1620 1622 1135 0 -1 4194304 4729 0 0 0 8 2 0 0 18 0 1 0 203073388 22085632 4714 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134688363 0 0 4096 0 0 0 0 17 1 0 0
/proc/1622/statm: 5392 4714 46 122 0 5266 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 21568

Solver just ended. Dumping a history of the last processes samples

[startup+0.202344 s]
/proc/loadavg: 0.91 0.98 0.93 3/77 1622
/proc/meminfo: memFree=1711048/2055920 swapFree=4148824/4192956
[pid=1622] ppid=1620 vsize=21312 CPUtime=0.18
/proc/1622/stat : 1622 (mxc) S 1620 1622 1135 0 -1 4194304 5805 0 0 0 16 2 0 0 18 0 1 0 203073388 21823488 4544 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134550682 0 0 4096 0 0 0 0 17 1 0 0
/proc/1622/statm: 5328 4544 47 122 0 5202 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 21312

Child status: 20
Real time (s): 0.207122
CPU time (s): 0.19497
CPU user time (s): 0.163975
CPU system time (s): 0.030995
CPU usage (%): 94.1329
Max. virtual memory (cumulated for all children) (KiB): 21568

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.163975
system time used= 0.030995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5818
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= 9
involuntary context switches= 0

runsolver used 0.000999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node14 on Thu Apr 26 01:39:16 UTC 2007

IDJOB= 367682
IDBENCH= 20516
IDSOLVER= 174
FILE ID= node14/367682-1177551556

PBS_JOBID= 4696618

Free space on /tmp= 66205 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/babic/xinetd/xinetd_vc56703.cnf
COMMAND LINE= /tmp/evaluation/367682-1177551556/mxc /tmp/evaluation/367682-1177551556/instance-367682-1177551556.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node14/watcher-367682-1177551556 -o ROOT/results/node14/solver-367682-1177551556 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/367682-1177551556/mxc /tmp/evaluation/367682-1177551556/instance-367682-1177551556.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  09053ffc48c8fbc3352a0ce4d89c2bbb

RANDOM SEED= 561592381

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node14.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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:       1711392 kB
Buffers:         40324 kB
Cached:         212652 kB
SwapCached:      12020 kB
Active:         158060 kB
Inactive:       125000 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1711392 kB
SwapTotal:     4192956 kB
SwapFree:      4148824 kB
Dirty:            5724 kB
Writeback:           0 kB
Mapped:          36708 kB
Slab:            46896 kB
Committed_AS:  7846976 kB
PageTables:       1800 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= 66205 MiB

End job on node14 on Thu Apr 26 01:39:17 UTC 2007