Trace number 1773400

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 2.71259 2.71306

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 benchmark1.14083
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 

2.69/2.71	c SATzilla is building models for class 3
2.69/2.71	c run presolver mxc-sr08 for 10 seconds ... 
2.69/2.71	c Bin: Executing mxc-sr08
2.69/2.71	c spawning binary file with 10 seconds ...
2.69/2.71	c child exited successfully
2.69/2.71	c mxc-sr08 returned code 20.
2.69/2.71	s UNSATISFIABLE
2.69/2.71	c SATZILLA_TIME=2.700000

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-1773400-1241347690/watcher-1773400-1241347690 -o /tmp/evaluation-result-1773400-1241347690/solver-1773400-1241347690 -C 10000 -W 12000 -M 1800 HOME/SATzilla2009_I HOME/instance-1773400-1241347690.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: 1.00 1.00 1.00 3/64 8154
/proc/meminfo: memFree=1284920/2055920 swapFree=4180844/4192956
[pid=8154] ppid=8152 vsize=2056 CPUtime=0
/proc/8154/stat : 8154 (SATzilla2009_I) R 8152 8154 7949 0 -1 4194304 128 0 0 0 0 0 0 0 18 0 1 0 162803161 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542911 0 0 4096 0 0 0 0 17 0 0 0
/proc/8154/statm: 514 112 96 399 0 111 0
[pid=8155] ppid=8154 vsize=2840 CPUtime=0
/proc/8155/stat : 8155 (mxc-sr08) R 8154 8154 7949 0 -1 4194304 533 0 0 0 0 0 0 0 18 0 1 0 162803161 2908160 529 1992294400 134512640 135078026 4294956192 18446744073709551615 134735920 0 0 8392704 0 0 0 0 17 0 0 0
/proc/8155/statm: 710 536 52 138 0 569 0

[startup+0.0192481 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 8154
/proc/meminfo: memFree=1284920/2055920 swapFree=4180844/4192956
[pid=8154] ppid=8152 vsize=2056 CPUtime=0
/proc/8154/stat : 8154 (SATzilla2009_I) S 8152 8154 7949 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 162803161 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/8154/statm: 514 112 96 399 0 111 0
[pid=8155] ppid=8154 vsize=4004 CPUtime=0.01
/proc/8155/stat : 8155 (mxc-sr08) R 8154 8154 7949 0 -1 4194304 818 0 0 0 1 0 0 0 18 0 1 0 162803161 4100096 812 1992294400 134512640 135078026 4294956192 18446744073709551615 134565915 0 0 8392704 0 0 0 0 17 0 0 0
/proc/8155/statm: 1001 812 54 138 0 860 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 6060

[startup+0.101263 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 8154
/proc/meminfo: memFree=1284920/2055920 swapFree=4180844/4192956
[pid=8154] ppid=8152 vsize=2056 CPUtime=0
/proc/8154/stat : 8154 (SATzilla2009_I) S 8152 8154 7949 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 162803161 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/8154/statm: 514 112 96 399 0 111 0
[pid=8155] ppid=8154 vsize=6244 CPUtime=0.09
/proc/8155/stat : 8155 (mxc-sr08) R 8154 8154 7949 0 -1 4194304 1458 0 0 0 9 0 0 0 19 0 1 0 162803161 6393856 1362 1992294400 134512640 135078026 4294956192 18446744073709551615 134556597 0 0 8392704 0 0 0 0 17 0 0 0
/proc/8155/statm: 1561 1362 55 138 0 1420 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8300

[startup+0.301299 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 8154
/proc/meminfo: memFree=1284920/2055920 swapFree=4180844/4192956
[pid=8154] ppid=8152 vsize=2056 CPUtime=0
/proc/8154/stat : 8154 (SATzilla2009_I) S 8152 8154 7949 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 162803161 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/8154/statm: 514 112 96 399 0 111 0
[pid=8155] ppid=8154 vsize=5964 CPUtime=0.29
/proc/8155/stat : 8155 (mxc-sr08) R 8154 8154 7949 0 -1 4194304 1519 0 0 0 29 0 0 0 21 0 1 0 162803161 6107136 1330 1992294400 134512640 135078026 4294956192 18446744073709551615 134533857 0 0 8392704 0 0 0 0 17 0 0 0
/proc/8155/statm: 1491 1330 71 138 0 1350 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8020

[startup+0.701371 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 8154
/proc/meminfo: memFree=1284920/2055920 swapFree=4180844/4192956
[pid=8154] ppid=8152 vsize=2056 CPUtime=0
/proc/8154/stat : 8154 (SATzilla2009_I) S 8152 8154 7949 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 162803161 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/8154/statm: 514 112 96 399 0 111 0
[pid=8155] ppid=8154 vsize=5964 CPUtime=0.69
/proc/8155/stat : 8155 (mxc-sr08) R 8154 8154 7949 0 -1 4194304 1519 0 0 0 69 0 0 0 25 0 1 0 162803161 6107136 1330 1992294400 134512640 135078026 4294956192 18446744073709551615 134534660 0 0 8392704 0 0 0 0 17 0 0 0
/proc/8155/statm: 1491 1330 71 138 0 1350 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 8020

[startup+1.50152 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 8156
/proc/meminfo: memFree=1279592/2055920 swapFree=4180844/4192956
[pid=8154] ppid=8152 vsize=2056 CPUtime=0
/proc/8154/stat : 8154 (SATzilla2009_I) S 8152 8154 7949 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 162803161 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/8154/statm: 514 112 96 399 0 111 0
[pid=8155] ppid=8154 vsize=5964 CPUtime=1.49
/proc/8155/stat : 8155 (mxc-sr08) R 8154 8154 7949 0 -1 4194304 1521 0 0 0 149 0 0 0 25 0 1 0 162803161 6107136 1332 1992294400 134512640 135078026 4294956192 18446744073709551615 134534834 0 0 8392704 0 0 0 0 17 0 0 0
/proc/8155/statm: 1491 1332 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+2.30266 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 8156
/proc/meminfo: memFree=1279464/2055920 swapFree=4180844/4192956
[pid=8154] ppid=8152 vsize=2056 CPUtime=0
/proc/8154/stat : 8154 (SATzilla2009_I) S 8152 8154 7949 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 162803161 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/8154/statm: 514 112 96 399 0 111 0
[pid=8155] ppid=8154 vsize=6096 CPUtime=2.29
/proc/8155/stat : 8155 (mxc-sr08) R 8154 8154 7949 0 -1 4194304 1541 0 0 0 229 0 0 0 25 0 1 0 162803161 6242304 1352 1992294400 134512640 135078026 4294956192 18446744073709551615 134534603 0 0 8392704 0 0 0 0 17 0 0 0
/proc/8155/statm: 1524 1352 71 138 0 1383 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 8152

[startup+2.70274 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 8156
/proc/meminfo: memFree=1279464/2055920 swapFree=4180844/4192956
[pid=8154] ppid=8152 vsize=2056 CPUtime=0
/proc/8154/stat : 8154 (SATzilla2009_I) S 8152 8154 7949 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 162803161 2105344 112 1992294400 134512640 136149169 4294956224 18446744073709551615 135542605 0 0 4096 0 18446744071563356171 0 0 17 1 0 0
/proc/8154/statm: 514 112 96 399 0 111 0
[pid=8155] ppid=8154 vsize=6096 CPUtime=2.69
/proc/8155/stat : 8155 (mxc-sr08) R 8154 8154 7949 0 -1 4194304 1560 0 0 0 269 0 0 0 25 0 1 0 162803161 6242304 1371 1992294400 134512640 135078026 4294956192 18446744073709551615 134534090 0 0 8392704 0 0 0 0 17 0 0 0
/proc/8155/statm: 1524 1371 71 138 0 1383 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 8152

Child status: 20
Real time (s): 2.71306
CPU time (s): 2.71259
CPU user time (s): 2.70459
CPU system time (s): 0.007998
CPU usage (%): 99.9826
Max. virtual memory (cumulated for all children) (KiB): 8300

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.70459
system time used= 0.007998
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= 12

runsolver used 0.001999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node2 at 2009-05-03 12:48:10
IDJOB=1773400
IDBENCH=69576
IDSOLVER=616
FILE ID=node2/1773400-1241347690
PBS_JOBID= 9225502
Free space on /tmp= 66364 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-1773400-1241347690/watcher-1773400-1241347690 -o /tmp/evaluation-result-1773400-1241347690/solver-1773400-1241347690 -C 10000 -W 12000 -M 1800  HOME/SATzilla2009_I HOME/instance-1773400-1241347690.cnf

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

MD5SUM BENCH= e05028f569e580a3335aeab2d092cf1f
RANDOM SEED=410263450

node2.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		: 3000.265
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		: 3000.265
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:       1285464 kB
Buffers:         78284 kB
Cached:         584504 kB
SwapCached:       5924 kB
Active:         131804 kB
Inactive:       539428 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1285464 kB
SwapTotal:     4192956 kB
SwapFree:      4180844 kB
Dirty:           31820 kB
Writeback:           0 kB
Mapped:          14116 kB
Slab:            85224 kB
Committed_AS:   908824 kB
PageTables:       1476 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= 66332 MiB
End job on node2 at 2009-05-03 12:48:13