Trace number 1555617

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 3.81742 3.8178

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 benchmark2.81857
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 

3.79/3.81	c SATzilla is building models for class 3
3.79/3.81	c run presolver mxc-sr08 for 10 seconds ... 
3.79/3.81	c Bin: Executing mxc-sr08
3.79/3.81	c spawning binary file with 10 seconds ...
3.79/3.81	c child exited successfully
3.79/3.81	c mxc-sr08 returned code 20.
3.79/3.81	s UNSATISFIABLE
3.79/3.81	c SATZILLA_TIME=3.810000

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-1555617-1238742096/watcher-1555617-1238742096 -o /tmp/evaluation-result-1555617-1238742096/solver-1555617-1238742096 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/SATzilla2009_I HOME/instance-1555617-1238742096.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 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: 1.07 0.99 0.71 3/64 1637
/proc/meminfo: memFree=1048656/2055924 swapFree=4176828/4192956
[pid=1637] ppid=1635 vsize=2056 CPUtime=0
/proc/1637/stat : 1637 (SATzilla2009_I) S 1635 1637 1497 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 1146876354 2105344 112 1992294400 134512640 136149169 4294956240 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/1637/statm: 514 112 96 399 0 111 0
[pid=1638] ppid=1637 vsize=3340 CPUtime=0
/proc/1638/stat : 1638 (mxc-sr08) R 1637 1637 1497 0 -1 4194304 640 0 0 0 0 0 0 0 19 0 1 0 1146876354 3420160 636 1992294400 134512640 135078026 4294956208 18446744073709551615 134555327 0 0 8392704 0 0 0 0 17 0 0 0
/proc/1638/statm: 835 638 52 138 0 694 0

[startup+0.091256 s]
/proc/loadavg: 1.07 0.99 0.71 3/64 1637
/proc/meminfo: memFree=1048656/2055924 swapFree=4176828/4192956
[pid=1637] ppid=1635 vsize=2056 CPUtime=0
/proc/1637/stat : 1637 (SATzilla2009_I) S 1635 1637 1497 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 1146876354 2105344 112 1992294400 134512640 136149169 4294956240 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/1637/statm: 514 112 96 399 0 111 0
[pid=1638] ppid=1637 vsize=8080 CPUtime=0.08
/proc/1638/stat : 1638 (mxc-sr08) R 1637 1637 1497 0 -1 4194304 1911 0 0 0 8 0 0 0 19 0 1 0 1146876354 8273920 1749 1992294400 134512640 135078026 4294956208 18446744073709551615 134722554 0 0 8392704 0 0 0 0 17 0 0 0
/proc/1638/statm: 2020 1750 55 138 0 1879 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 10136

[startup+0.101255 s]
/proc/loadavg: 1.07 0.99 0.71 3/64 1637
/proc/meminfo: memFree=1048656/2055924 swapFree=4176828/4192956
[pid=1637] ppid=1635 vsize=2056 CPUtime=0
/proc/1637/stat : 1637 (SATzilla2009_I) S 1635 1637 1497 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 1146876354 2105344 112 1992294400 134512640 136149169 4294956240 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/1637/statm: 514 112 96 399 0 111 0
[pid=1638] ppid=1637 vsize=8476 CPUtime=0.09
/proc/1638/stat : 1638 (mxc-sr08) R 1637 1637 1497 0 -1 4194304 2005 0 0 0 9 0 0 0 19 0 1 0 1146876354 8679424 1843 1992294400 134512640 135078026 4294956208 18446744073709551615 134722554 0 0 8392704 0 0 0 0 17 0 0 0
/proc/1638/statm: 2119 1843 55 138 0 1978 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10532

[startup+0.301279 s]
/proc/loadavg: 1.07 0.99 0.71 3/64 1637
/proc/meminfo: memFree=1048656/2055924 swapFree=4176828/4192956
[pid=1637] ppid=1635 vsize=2056 CPUtime=0
/proc/1637/stat : 1637 (SATzilla2009_I) S 1635 1637 1497 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 1146876354 2105344 112 1992294400 134512640 136149169 4294956240 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/1637/statm: 514 112 96 399 0 111 0
[pid=1638] ppid=1637 vsize=14424 CPUtime=0.29
/proc/1638/stat : 1638 (mxc-sr08) R 1637 1637 1497 0 -1 4194304 3510 0 0 0 28 1 0 0 21 0 1 0 1146876354 14770176 3348 1992294400 134512640 135078026 4294956208 18446744073709551615 134569283 0 0 8392704 0 0 0 0 17 0 0 0
/proc/1638/statm: 3606 3348 55 138 0 3465 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 16480

[startup+0.701324 s]
/proc/loadavg: 1.07 0.99 0.71 3/64 1637
/proc/meminfo: memFree=1048656/2055924 swapFree=4176828/4192956
[pid=1637] ppid=1635 vsize=2056 CPUtime=0
/proc/1637/stat : 1637 (SATzilla2009_I) S 1635 1637 1497 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 1146876354 2105344 112 1992294400 134512640 136149169 4294956240 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/1637/statm: 514 112 96 399 0 111 0
[pid=1638] ppid=1637 vsize=17140 CPUtime=0.69
/proc/1638/stat : 1638 (mxc-sr08) R 1637 1637 1497 0 -1 4194304 4081 0 0 0 68 1 0 0 25 0 1 0 1146876354 17551360 3919 1992294400 134512640 135078026 4294956208 18446744073709551615 134561382 0 0 8392704 0 0 0 0 17 0 0 0
/proc/1638/statm: 4285 3919 55 138 0 4144 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 19196

[startup+1.50142 s]
/proc/loadavg: 1.07 0.99 0.71 2/66 1639
/proc/meminfo: memFree=1032640/2055924 swapFree=4176828/4192956
[pid=1637] ppid=1635 vsize=2056 CPUtime=0
/proc/1637/stat : 1637 (SATzilla2009_I) S 1635 1637 1497 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 1146876354 2105344 112 1992294400 134512640 136149169 4294956240 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/1637/statm: 514 112 96 399 0 111 0
[pid=1638] ppid=1637 vsize=17584 CPUtime=1.49
/proc/1638/stat : 1638 (mxc-sr08) R 1637 1637 1497 0 -1 4194304 4198 0 0 0 148 1 0 0 25 0 1 0 1146876354 18006016 4036 1992294400 134512640 135078026 4294956208 18446744073709551615 134561011 0 0 8392704 0 0 0 0 17 0 0 0
/proc/1638/statm: 4396 4036 55 138 0 4255 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 19640

[startup+3.1016 s]
/proc/loadavg: 1.06 0.99 0.71 2/66 1639
/proc/meminfo: memFree=1032320/2055924 swapFree=4176828/4192956
[pid=1637] ppid=1635 vsize=2056 CPUtime=0
/proc/1637/stat : 1637 (SATzilla2009_I) S 1635 1637 1497 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 1146876354 2105344 112 1992294400 134512640 136149169 4294956240 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/1637/statm: 514 112 96 399 0 111 0
[pid=1638] ppid=1637 vsize=17336 CPUtime=3.09
/proc/1638/stat : 1638 (mxc-sr08) R 1637 1637 1497 0 -1 4194304 4401 0 0 0 308 1 0 0 25 0 1 0 1146876354 17752064 4065 1992294400 134512640 135078026 4294956208 18446744073709551615 134523802 0 0 8392704 0 0 0 0 17 0 0 0
/proc/1638/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+3.50165 s]
/proc/loadavg: 1.06 0.99 0.71 2/66 1639
/proc/meminfo: memFree=1032320/2055924 swapFree=4176828/4192956
[pid=1637] ppid=1635 vsize=2056 CPUtime=0
/proc/1637/stat : 1637 (SATzilla2009_I) S 1635 1637 1497 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 1146876354 2105344 112 1992294400 134512640 136149169 4294956240 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/1637/statm: 514 112 96 399 0 111 0
[pid=1638] ppid=1637 vsize=17336 CPUtime=3.49
/proc/1638/stat : 1638 (mxc-sr08) R 1637 1637 1497 0 -1 4194304 4403 0 0 0 348 1 0 0 25 0 1 0 1146876354 17752064 4067 1992294400 134512640 135078026 4294956208 18446744073709551615 134522144 0 0 8392704 0 0 0 0 17 0 0 0
/proc/1638/statm: 4334 4067 71 138 0 4193 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 19392

[startup+3.70167 s]
/proc/loadavg: 1.06 0.99 0.71 2/66 1639
/proc/meminfo: memFree=1032320/2055924 swapFree=4176828/4192956
[pid=1637] ppid=1635 vsize=2056 CPUtime=0
/proc/1637/stat : 1637 (SATzilla2009_I) S 1635 1637 1497 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 1146876354 2105344 112 1992294400 134512640 136149169 4294956240 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/1637/statm: 514 112 96 399 0 111 0
[pid=1638] ppid=1637 vsize=17336 CPUtime=3.69
/proc/1638/stat : 1638 (mxc-sr08) R 1637 1637 1497 0 -1 4194304 4403 0 0 0 368 1 0 0 25 0 1 0 1146876354 17752064 4067 1992294400 134512640 135078026 4294956208 18446744073709551615 134534318 0 0 8392704 0 0 0 0 17 0 0 0
/proc/1638/statm: 4334 4067 71 138 0 4193 0
Current children cumulated CPU time (s) 3.69
Current children cumulated vsize (KiB) 19392

[startup+3.80168 s]
/proc/loadavg: 1.06 0.99 0.71 2/66 1639
/proc/meminfo: memFree=1032320/2055924 swapFree=4176828/4192956
[pid=1637] ppid=1635 vsize=2056 CPUtime=0
/proc/1637/stat : 1637 (SATzilla2009_I) S 1635 1637 1497 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 1146876354 2105344 112 1992294400 134512640 136149169 4294956240 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/1637/statm: 514 112 96 399 0 111 0
[pid=1638] ppid=1637 vsize=17336 CPUtime=3.79
/proc/1638/stat : 1638 (mxc-sr08) R 1637 1637 1497 0 -1 4194304 4403 0 0 0 378 1 0 0 25 0 1 0 1146876354 17752064 4067 1992294400 134512640 135078026 4294956208 18446744073709551615 134540322 0 0 8392704 0 0 0 0 17 0 0 0
/proc/1638/statm: 4334 4067 71 138 0 4193 0
Current children cumulated CPU time (s) 3.79
Current children cumulated vsize (KiB) 19392

Child status: 20
Real time (s): 3.8178
CPU time (s): 3.81742
CPU user time (s): 3.79542
CPU system time (s): 0.021996
CPU usage (%): 99.99
Max. virtual memory (cumulated for all children) (KiB): 20036

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.79542
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= 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= 4
involuntary context switches= 18

runsolver used 0.004999 second user time and 0.016997 second system time

The end

Launcher Data 

Begin job on node6 at 2009-04-03 09:01:36
IDJOB=1555617
IDBENCH=70803
IDSOLVER=528
FILE ID=node6/1555617-1238742096
PBS_JOBID= 9086119
Free space on /tmp= 66452 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-1555617-1238742096/watcher-1555617-1238742096 -o /tmp/evaluation-result-1555617-1238742096/solver-1555617-1238742096 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/SATzilla2009_I HOME/instance-1555617-1238742096.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= b2d2617ddc348aef0d35df3c8f228dcb
RANDOM SEED=1265515792

node6.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		: 3000.236
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		: 3000.236
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:      2055924 kB
MemFree:       1049200 kB
Buffers:        118524 kB
Cached:         771968 kB
SwapCached:       9896 kB
Active:         291652 kB
Inactive:       612300 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1049200 kB
SwapTotal:     4192956 kB
SwapFree:      4176828 kB
Dirty:           32304 kB
Writeback:           0 kB
Mapped:          19156 kB
Slab:            88848 kB
Committed_AS:  3033700 kB
PageTables:       1464 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= 66420 MiB
End job on node6 at 2009-04-03 09:01:40