Trace number 1773820

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
SATzilla2009_I 2009-03-22UNSAT 4.08038 4.08175

General information on the benchmark

NameAPPLICATIONS/
bitverif/maxand/maxand064.cnf
MD5SUMb2d2617ddc348aef0d35df3c8f228dcb
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.97355
Satisfiable
(Un)Satisfiability was proved
Number of variables14578
Number of clauses42581
Sum of the clauses size99353
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 228386
Number of clauses of size 314193
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

3.99/4.08	c SATzilla is building models for class 3
3.99/4.08	c run presolver mxc-sr08 for 10 seconds ... 
3.99/4.08	c Bin: Executing mxc-sr08
3.99/4.08	c spawning binary file with 10 seconds ...
3.99/4.08	c child exited successfully
3.99/4.08	c mxc-sr08 returned code 20.
3.99/4.08	s UNSATISFIABLE
3.99/4.08	c SATZILLA_TIME=4.070000

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1773820-1241350838/watcher-1773820-1241350838 -o /tmp/evaluation-result-1773820-1241350838/solver-1773820-1241350838 -C 10000 -W 12000 -M 1800 HOME/SATzilla2009_I HOME/instance-1773820-1241350838.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 28979
/proc/meminfo: memFree=1455096/2055920 swapFree=4180888/4192956
[pid=28979] ppid=28977 vsize=2056 CPUtime=0
/proc/28979/stat : 28979 (SATzilla2009_I) S 28977 28979 28942 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 163117413 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/28979/statm: 514 112 96 399 0 111 0
[pid=28980] ppid=28979 vsize=3020 CPUtime=0
/proc/28980/stat : 28980 (mxc-sr08) R 28979 28979 28942 0 -1 4194304 573 0 0 0 0 0 0 0 20 0 1 0 163117413 3092480 570 1992294400 134512640 135078026 4294956192 18446744073709551615 134554932 0 0 8392704 0 0 0 0 17 1 0 0
/proc/28980/statm: 796 572 52 138 0 655 0

[startup+0.064731 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 28979
/proc/meminfo: memFree=1455096/2055920 swapFree=4180888/4192956
[pid=28979] ppid=28977 vsize=2056 CPUtime=0
/proc/28979/stat : 28979 (SATzilla2009_I) S 28977 28979 28942 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 163117413 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/28979/statm: 514 112 96 399 0 111 0
[pid=28980] ppid=28979 vsize=6892 CPUtime=0.05
/proc/28980/stat : 28980 (mxc-sr08) R 28979 28979 28942 0 -1 4194304 1594 0 0 0 5 0 0 0 20 0 1 0 163117413 7057408 1432 1992294400 134512640 135078026 4294956192 18446744073709551615 134722554 0 0 8392704 0 0 0 0 17 1 0 0
/proc/28980/statm: 1723 1432 55 138 0 1582 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 8948

[startup+0.101734 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 28979
/proc/meminfo: memFree=1455096/2055920 swapFree=4180888/4192956
[pid=28979] ppid=28977 vsize=2056 CPUtime=0
/proc/28979/stat : 28979 (SATzilla2009_I) S 28977 28979 28942 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 163117413 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/28979/statm: 514 112 96 399 0 111 0
[pid=28980] ppid=28979 vsize=8212 CPUtime=0.09
/proc/28980/stat : 28980 (mxc-sr08) R 28979 28979 28942 0 -1 4194304 1935 0 0 0 9 0 0 0 20 0 1 0 163117413 8409088 1773 1992294400 134512640 135078026 4294956192 18446744073709551615 134722554 0 0 8392704 0 0 0 0 17 1 0 0
/proc/28980/statm: 2053 1773 55 138 0 1912 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10268

[startup+0.301754 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 28979
/proc/meminfo: memFree=1455096/2055920 swapFree=4180888/4192956
[pid=28979] ppid=28977 vsize=2056 CPUtime=0
/proc/28979/stat : 28979 (SATzilla2009_I) S 28977 28979 28942 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 163117413 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/28979/statm: 514 112 96 399 0 111 0
[pid=28980] ppid=28979 vsize=14148 CPUtime=0.29
/proc/28980/stat : 28980 (mxc-sr08) R 28979 28979 28942 0 -1 4194304 3445 0 0 0 28 1 0 0 21 0 1 0 163117413 14487552 3283 1992294400 134512640 135078026 4294956192 18446744073709551615 134735920 0 0 8392704 0 0 0 0 17 1 0 0
/proc/28980/statm: 3537 3283 55 138 0 3396 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 16204

[startup+0.701795 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 28979
/proc/meminfo: memFree=1455096/2055920 swapFree=4180888/4192956
[pid=28979] ppid=28977 vsize=2056 CPUtime=0
/proc/28979/stat : 28979 (SATzilla2009_I) S 28977 28979 28942 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 163117413 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/28979/statm: 514 112 96 399 0 111 0
[pid=28980] ppid=28979 vsize=16992 CPUtime=0.69
/proc/28980/stat : 28980 (mxc-sr08) R 28979 28979 28942 0 -1 4194304 4043 0 0 0 68 1 0 0 24 0 1 0 163117413 17399808 3881 1992294400 134512640 135078026 4294956192 18446744073709551615 134735920 0 0 8392704 0 0 0 0 17 1 0 0
/proc/28980/statm: 4248 3881 55 138 0 4107 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 19048

[startup+1.50288 s]
/proc/loadavg: 0.92 0.98 0.99 2/66 28981
/proc/meminfo: memFree=1439072/2055920 swapFree=4180888/4192956
[pid=28979] ppid=28977 vsize=2056 CPUtime=0
/proc/28979/stat : 28979 (SATzilla2009_I) S 28977 28979 28942 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 163117413 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/28979/statm: 514 112 96 399 0 111 0
[pid=28980] ppid=28979 vsize=17584 CPUtime=1.49
/proc/28980/stat : 28980 (mxc-sr08) R 28979 28979 28942 0 -1 4194304 4192 0 0 0 148 1 0 0 25 0 1 0 163117413 18006016 4030 1992294400 134512640 135078026 4294956192 18446744073709551615 134560893 0 0 8392704 0 0 0 0 17 1 0 0
/proc/28980/statm: 4396 4030 55 138 0 4255 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 19640

[startup+3.10104 s]
/proc/loadavg: 0.92 0.98 0.99 2/66 28981
/proc/meminfo: memFree=1438240/2055920 swapFree=4180888/4192956
[pid=28979] ppid=28977 vsize=2056 CPUtime=0
/proc/28979/stat : 28979 (SATzilla2009_I) S 28977 28979 28942 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 163117413 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/28979/statm: 514 112 96 399 0 111 0
[pid=28980] ppid=28979 vsize=17336 CPUtime=3.09
/proc/28980/stat : 28980 (mxc-sr08) R 28979 28979 28942 0 -1 4194304 4401 0 0 0 308 1 0 0 25 0 1 0 163117413 17752064 4065 1992294400 134512640 135078026 4294956192 18446744073709551615 134534713 0 0 8392704 0 0 0 0 17 1 0 0
/proc/28980/statm: 4334 4065 71 138 0 4193 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 19392

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

[startup+3.50108 s]
/proc/loadavg: 0.93 0.98 0.99 2/66 28981
/proc/meminfo: memFree=1438688/2055920 swapFree=4180888/4192956
[pid=28979] ppid=28977 vsize=2056 CPUtime=0
/proc/28979/stat : 28979 (SATzilla2009_I) S 28977 28979 28942 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 163117413 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/28979/statm: 514 112 96 399 0 111 0
[pid=28980] ppid=28979 vsize=17336 CPUtime=3.49
/proc/28980/stat : 28980 (mxc-sr08) R 28979 28979 28942 0 -1 4194304 4402 0 0 0 348 1 0 0 25 0 1 0 163117413 17752064 4066 1992294400 134512640 135078026 4294956192 18446744073709551615 134523813 0 0 8392704 0 0 0 0 17 1 0 0
/proc/28980/statm: 4334 4066 71 138 0 4193 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 19392

[startup+3.90112 s]
/proc/loadavg: 0.93 0.98 0.99 2/66 28981
/proc/meminfo: memFree=1438688/2055920 swapFree=4180888/4192956
[pid=28979] ppid=28977 vsize=2056 CPUtime=0
/proc/28979/stat : 28979 (SATzilla2009_I) S 28977 28979 28942 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 163117413 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/28979/statm: 514 112 96 399 0 111 0
[pid=28980] ppid=28979 vsize=17336 CPUtime=3.89
/proc/28980/stat : 28980 (mxc-sr08) R 28979 28979 28942 0 -1 4194304 4403 0 0 0 388 1 0 0 25 0 1 0 163117413 17752064 4067 1992294400 134512640 135078026 4294956192 18446744073709551615 134523845 0 0 8392704 0 0 0 0 17 1 0 0
/proc/28980/statm: 4334 4067 71 138 0 4193 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 19392

[startup+4.00113 s]
/proc/loadavg: 0.93 0.98 0.99 2/66 28981
/proc/meminfo: memFree=1438688/2055920 swapFree=4180888/4192956
[pid=28979] ppid=28977 vsize=2056 CPUtime=0
/proc/28979/stat : 28979 (SATzilla2009_I) S 28977 28979 28942 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 163117413 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/28979/statm: 514 112 96 399 0 111 0
[pid=28980] ppid=28979 vsize=17336 CPUtime=3.99
/proc/28980/stat : 28980 (mxc-sr08) R 28979 28979 28942 0 -1 4194304 4403 0 0 0 398 1 0 0 25 0 1 0 163117413 17752064 4067 1992294400 134512640 135078026 4294956192 18446744073709551615 134534454 0 0 8392704 0 0 0 0 17 1 0 0
/proc/28980/statm: 4334 4067 71 138 0 4193 0
Current children cumulated CPU time (s) 3.99
Current children cumulated vsize (KiB) 19392

Child status: 20
Real time (s): 4.08175
CPU time (s): 4.08038
CPU user time (s): 4.06038
CPU system time (s): 0.019996
CPU usage (%): 99.9665
Max. virtual memory (cumulated for all children) (KiB): 20036

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.06038
system time used= 0.019996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4569
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= 5
involuntary context switches= 17

runsolver used 0.006998 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node24 at 2009-05-03 13:40:39
IDJOB=1773820
IDBENCH=70803
IDSOLVER=616
FILE ID=node24/1773820-1241350838
PBS_JOBID= 9225556
Free space on /tmp= 66540 MiB

SOLVER NAME= SATzilla2009_I 2009-03-22
BENCH NAME= SAT09/APPLICATIONS/bitverif/maxand/maxand064.cnf
COMMAND LINE= HOME/SATzilla2009_I BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1773820-1241350838/watcher-1773820-1241350838 -o /tmp/evaluation-result-1773820-1241350838/solver-1773820-1241350838 -C 10000 -W 12000 -M 1800  HOME/SATzilla2009_I HOME/instance-1773820-1241350838.cnf

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= b2d2617ddc348aef0d35df3c8f228dcb
RANDOM SEED=1605267312

node24.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.232
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		: 3000.232
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:       1455576 kB
Buffers:         93080 kB
Cached:         395692 kB
SwapCached:       5860 kB
Active:          94612 kB
Inactive:       402368 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1455576 kB
SwapTotal:     4192956 kB
SwapFree:      4180888 kB
Dirty:           32152 kB
Writeback:           0 kB
Mapped:          13916 kB
Slab:            89248 kB
Committed_AS:   711364 kB
PageTables:       1440 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= 66512 MiB
End job on node24 at 2009-05-03 13:40:43