Trace number 1719867

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 2.74358 2.75267

General information on the benchmark

Namehoons-vbmc-lucky7.cnf
MD5SUMe05028f569e580a3335aeab2d092cf1f
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.14183
Satisfiable
(Un)Satisfiability was proved
Number of variables8503
Number of clauses25116
Sum of the clauses size58576
Maximum clause length3
Minimum clause length1
Number of clauses of size 121
Number of clauses of size 216730
Number of clauses of size 38365
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

2.68/2.75	c SATzilla is building models for class 3
2.68/2.75	c run presolver mxc-sr08 for 10 seconds ... 
2.68/2.75	c Bin: Executing mxc-sr08
2.68/2.75	c spawning binary file with 10 seconds ...
2.68/2.75	c child exited successfully
2.68/2.75	c mxc-sr08 returned code 20.
2.68/2.75	s UNSATISFIABLE
2.68/2.75	c SATZILLA_TIME=2.730000

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-1719867-1240650164/watcher-1719867-1240650164 -o /tmp/evaluation-result-1719867-1240650164/solver-1719867-1240650164 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/SATzilla2009_I HOME/instance-1719867-1240650164.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: 1.00 1.00 1.00 3/64 3851
/proc/meminfo: memFree=1005704/2055920 swapFree=4192956/4192956
[pid=3851] ppid=3849 vsize=2056 CPUtime=0
/proc/3851/stat : 3851 (SATzilla2009_I) S 3849 3851 3696 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 93044420 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/3851/statm: 514 112 96 399 0 111 0
[pid=3852] ppid=3851 vsize=2696 CPUtime=0
/proc/3852/stat : 3852 (mxc-sr08) R 3851 3851 3696 0 -1 4194304 516 0 0 0 0 0 0 0 19 0 1 0 93044420 2760704 512 1992294400 134512640 135078026 4294956192 18446744073709551615 134554627 0 0 8392704 0 0 0 0 17 0 0 0
/proc/3852/statm: 674 514 52 138 0 533 0

[startup+0.061694 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 3851
/proc/meminfo: memFree=1005704/2055920 swapFree=4192956/4192956
[pid=3851] ppid=3849 vsize=2056 CPUtime=0
/proc/3851/stat : 3851 (SATzilla2009_I) S 3849 3851 3696 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 93044420 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/3851/statm: 514 112 96 399 0 111 0
[pid=3852] ppid=3851 vsize=5028 CPUtime=0.05
/proc/3852/stat : 3852 (mxc-sr08) R 3851 3851 3696 0 -1 4194304 1162 0 0 0 5 0 0 0 19 0 1 0 93044420 5148672 1066 1992294400 134512640 135078026 4294956192 18446744073709551615 134552868 0 0 8392704 0 0 0 0 17 1 0 0
/proc/3852/statm: 1257 1066 55 138 0 1116 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 7084

[startup+0.101697 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 3851
/proc/meminfo: memFree=1005704/2055920 swapFree=4192956/4192956
[pid=3851] ppid=3849 vsize=2056 CPUtime=0
/proc/3851/stat : 3851 (SATzilla2009_I) S 3849 3851 3696 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 93044420 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/3851/statm: 514 112 96 399 0 111 0
[pid=3852] ppid=3851 vsize=6244 CPUtime=0.09
/proc/3852/stat : 3852 (mxc-sr08) R 3851 3851 3696 0 -1 4194304 1447 0 0 0 9 0 0 0 19 0 1 0 93044420 6393856 1351 1992294400 134512640 135078026 4294956192 18446744073709551615 134569291 0 0 8392704 0 0 0 0 17 1 0 0
/proc/3852/statm: 1561 1351 55 138 0 1420 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8300

[startup+0.301722 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 3851
/proc/meminfo: memFree=1005704/2055920 swapFree=4192956/4192956
[pid=3851] ppid=3849 vsize=2056 CPUtime=0
/proc/3851/stat : 3851 (SATzilla2009_I) S 3849 3851 3696 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 93044420 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/3851/statm: 514 112 96 399 0 111 0
[pid=3852] ppid=3851 vsize=5964 CPUtime=0.28
/proc/3852/stat : 3852 (mxc-sr08) R 3851 3851 3696 0 -1 4194304 1519 0 0 0 28 0 0 0 21 0 1 0 93044420 6107136 1330 1992294400 134512640 135078026 4294956192 18446744073709551615 134534204 0 0 8392704 0 0 0 0 17 1 0 0
/proc/3852/statm: 1491 1330 71 138 0 1350 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 8020

[startup+0.701767 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 3851
/proc/meminfo: memFree=1005704/2055920 swapFree=4192956/4192956
[pid=3851] ppid=3849 vsize=2056 CPUtime=0
/proc/3851/stat : 3851 (SATzilla2009_I) S 3849 3851 3696 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 93044420 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/3851/statm: 514 112 96 399 0 111 0
[pid=3852] ppid=3851 vsize=5964 CPUtime=0.69
/proc/3852/stat : 3852 (mxc-sr08) R 3851 3851 3696 0 -1 4194304 1519 0 0 0 68 1 0 0 25 0 1 0 93044420 6107136 1330 1992294400 134512640 135078026 4294956192 18446744073709551615 134524306 0 0 8392704 0 0 0 0 17 1 0 0
/proc/3852/statm: 1491 1330 71 138 0 1350 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 8020

[startup+1.50185 s]
/proc/loadavg: 1.08 1.02 1.01 2/66 3853
/proc/meminfo: memFree=999992/2055920 swapFree=4192956/4192956
[pid=3851] ppid=3849 vsize=2056 CPUtime=0
/proc/3851/stat : 3851 (SATzilla2009_I) S 3849 3851 3696 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 93044420 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/3851/statm: 514 112 96 399 0 111 0
[pid=3852] ppid=3851 vsize=5964 CPUtime=1.49
/proc/3852/stat : 3852 (mxc-sr08) R 3851 3851 3696 0 -1 4194304 1519 0 0 0 148 1 0 0 25 0 1 0 93044420 6107136 1330 1992294400 134512640 135078026 4294956192 18446744073709551615 134534209 0 0 8392704 0 0 0 0 17 0 0 0
/proc/3852/statm: 1491 1330 71 138 0 1350 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 8020

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

[startup+2.30194 s]
/proc/loadavg: 1.08 1.02 1.01 2/66 3853
/proc/meminfo: memFree=1000568/2055920 swapFree=4192956/4192956
[pid=3851] ppid=3849 vsize=2056 CPUtime=0
/proc/3851/stat : 3851 (SATzilla2009_I) S 3849 3851 3696 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 93044420 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/3851/statm: 514 112 96 399 0 111 0
[pid=3852] ppid=3851 vsize=6096 CPUtime=2.28
/proc/3852/stat : 3852 (mxc-sr08) R 3851 3851 3696 0 -1 4194304 1541 0 0 0 227 1 0 0 25 0 1 0 93044420 6242304 1352 1992294400 134512640 135078026 4294956192 18446744073709551615 134534209 0 0 8392704 0 0 0 0 17 0 0 0
/proc/3852/statm: 1524 1352 71 138 0 1383 0
Current children cumulated CPU time (s) 2.28
Current children cumulated vsize (KiB) 8152

[startup+2.70199 s]
/proc/loadavg: 1.08 1.02 1.01 2/66 3853
/proc/meminfo: memFree=1000568/2055920 swapFree=4192956/4192956
[pid=3851] ppid=3849 vsize=2056 CPUtime=0
/proc/3851/stat : 3851 (SATzilla2009_I) S 3849 3851 3696 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 93044420 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/3851/statm: 514 112 96 399 0 111 0
[pid=3852] ppid=3851 vsize=6096 CPUtime=2.68
/proc/3852/stat : 3852 (mxc-sr08) R 3851 3851 3696 0 -1 4194304 1557 0 0 0 267 1 0 0 25 0 1 0 93044420 6242304 1368 1992294400 134512640 135078026 4294956192 18446744073709551615 134534219 0 0 8392704 0 0 0 0 17 0 0 0
/proc/3852/statm: 1524 1368 71 138 0 1383 0
Current children cumulated CPU time (s) 2.68
Current children cumulated vsize (KiB) 8152

Child status: 20
Real time (s): 2.75267
CPU time (s): 2.74358
CPU user time (s): 2.72758
CPU system time (s): 0.015997
CPU usage (%): 99.6697
Max. virtual memory (cumulated for all children) (KiB): 8300

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.72758
system time used= 0.015997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1726
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= 20

runsolver used 0.004999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node53 at 2009-04-25 11:02:44
IDJOB=1719867
IDBENCH=69576
IDSOLVER=528
FILE ID=node53/1719867-1240650164
PBS_JOBID= 9186483
Free space on /tmp= 66476 MiB

SOLVER NAME= SATzilla2009_I 2009-03-22
BENCH NAME= SAT_RACE08/cnf/hoons-vbmc-lucky7.cnf
COMMAND LINE= HOME/SATzilla2009_I BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1719867-1240650164/watcher-1719867-1240650164 -o /tmp/evaluation-result-1719867-1240650164/solver-1719867-1240650164 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/SATzilla2009_I HOME/instance-1719867-1240650164.cnf

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

MD5SUM BENCH= e05028f569e580a3335aeab2d092cf1f
RANDOM SEED=660709606

node53.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		: 3000.245
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		: 3000.245
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1006248 kB
Buffers:         94564 kB
Cached:         852676 kB
SwapCached:          0 kB
Active:          97556 kB
Inactive:       863568 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1006248 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:           31812 kB
Writeback:           0 kB
Mapped:          23648 kB
Slab:            74596 kB
Committed_AS:   236012 kB
PageTables:       1376 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= 66448 MiB
End job on node53 at 2009-04-25 11:02:47