Trace number 3266176

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
SAT4J core 2.3.0 SNAPSHOT 2011-02-06UNSAT 0.342946 0.239671

General information on the benchmark

NameSAT02/handmade/pehoushek/plainoldcnf/
5cnf_3500_3500_30f1.shuffled.cnf
MD5SUMdfc27c12419822bebf5088f3b8f31579
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.003999
Satisfiable
(Un)Satisfiability was proved
Number of variables30
Number of clauses420
Sum of the clauses size1968
Maximum clause length5
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 311
Number of clauses of size 4110
Number of clauses of size 5299
Number of clauses of size over 50

Solver Data 

0.01/0.07	c SAT4J: a SATisfiability library for Java (c) 2004-2010 Daniel Le Berre
0.01/0.07	c This is free software under the dual EPL/GNU LGPL licenses.
0.01/0.07	c See www.sat4j.org for details.
0.01/0.08	c no version file found!!!
0.01/0.08	c java.runtime.name	Java(TM) SE Runtime Environment
0.01/0.08	c java.vm.name		Java HotSpot(TM) 64-Bit Server VM
0.01/0.08	c java.vm.version	19.1-b02
0.01/0.08	c java.vm.vendor	Sun Microsystems Inc.
0.01/0.08	c sun.arch.data.model	64
0.01/0.08	c java.version		1.6.0_24
0.01/0.08	c os.name		Linux
0.01/0.08	c os.version		2.6.18-164.el5
0.01/0.08	c os.arch		amd64
0.01/0.08	c Free memory 		6997539544
0.01/0.08	c Max memory 		7034241024
0.01/0.08	c Total memory 		7034241024
0.01/0.08	c Number of processors 	8
0.01/0.10	c --- Begin Solver configuration ---
0.01/0.10	c org.sat4j.minisat.constraints.MixedDataStructureDanielWL@50337d0f
0.01/0.10	c Learn all clauses as in MiniSAT
0.01/0.10	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.1 initConflictBound=100 
0.01/0.10	c VSIDS like heuristics from MiniSAT using a heap lightweight component caching from RSAT
0.01/0.10	c Expensive reason simplification
0.01/0.10	c Armin Biere (Picosat) restarts strategy
0.01/0.10	c Glucose learned constraints deletion strategy
0.01/0.10	c timeout=2147483647s
0.01/0.10	c DB Simplification allowed=true
0.01/0.10	c --- End Solver configuration ---
0.01/0.10	c solving HOME/instance-3266176-1303582409.cnf
0.01/0.10	c reading problem ... 
0.01/0.10	c ... done. Wall clock time 0.0090s.
0.01/0.10	c #vars     30
0.01/0.10	c #constraints  420
0.01/0.10	c constraints type 
0.01/0.10	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 420
0.28/0.22	c starts		: 6
0.28/0.22	c conflicts		: 740
0.28/0.22	c decisions		: 826
0.28/0.22	c propagations		: 5927
0.28/0.22	c inspects		: 101514
0.28/0.22	c shortcuts		: 0
0.28/0.22	c learnt literals	: 7
0.28/0.22	c learnt binary clauses	: 33
0.28/0.22	c learnt ternary clauses	: 78
0.28/0.22	c learnt constraints	: 732
0.28/0.22	c ignored constraints	: 0
0.28/0.22	c root simplifications	: 12
0.28/0.22	c removed literals (reason simplification)	: 1526
0.28/0.22	c reason swapping (by a shorter reason)	: 0
0.28/0.22	c Calls to reduceDB	: 0
0.28/0.22	c speed (assignments/second)	: 50658.11965811966
0.28/0.22	c non guided choices	11
0.28/0.22	c learnt constraints type 
0.28/0.22	c org.sat4j.minisat.constraints.cnf.LearntBinaryClause => 4
0.28/0.22	c org.sat4j.minisat.constraints.cnf.LearntWLClause => 49
0.28/0.22	c constraints type 
0.28/0.22	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 420
0.28/0.22	s UNSATISFIABLE
0.28/0.22	c Total wall clock time (in seconds) : 0.127

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3266176-1303582409/watcher-3266176-1303582409 -o /tmp/evaluation-result-3266176-1303582409/solver-3266176-1303582409 -C 2400 -W 1300 -M 7680 java -server -XX:MaxPermSize=256m -Xms7000m -Xmx7000m -jar org.sat4j.core.jar HOME/instance-3266176-1303582409.cnf 

running on 2 cores: 0,2

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.58 2.90 3.57 7/241 10618
/proc/meminfo: memFree=18385212/32951132 swapFree=67111528/67111528
[pid=10618] ppid=10616 vsize=11800 CPUtime=0 cores=0,2
/proc/10618/stat : 10618 (runsolver) R 10616 10618 9649 0 -1 4202560 46 0 0 0 0 0 0 0 25 0 1 0 469840537 12083200 54 33554432000 4194304 5434984 140735895960528 18446744073709551615 5055495 0 2147483391 4096 24578 0 0 0 17 2 0 0 0
/proc/10618/statm: 2950 54 34 303 0 2644 0

[startup+0.0313339 s]
/proc/loadavg: 1.58 2.90 3.57 7/241 10618
/proc/meminfo: memFree=18385212/32951132 swapFree=67111528/67111528
[pid=10618] ppid=10616 vsize=7551884 CPUtime=0.01 cores=0,2
/proc/10618/stat : 10618 (java) S 10616 10618 9649 0 -1 4202496 8301 0 1 0 1 0 0 0 25 0 10 0 469840537 7733129216 7998 33554432000 1073741824 1073778376 140733714478768 18446744073709551615 274676611045 0 0 0 16784584 18446744073709551615 0 0 17 2 0 0 0
/proc/10618/statm: 1887971 8002 1517 9 0 1878719 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 7551884

[startup+0.117346 s]
/proc/loadavg: 1.58 2.90 3.57 7/241 10618
/proc/meminfo: memFree=18385212/32951132 swapFree=67111528/67111528
[pid=10618] ppid=10616 vsize=7637164 CPUtime=0.12 cores=0,2
/proc/10618/stat : 10618 (java) S 10616 10618 9649 0 -1 4202496 10448 0 1 0 11 1 0 0 25 0 19 0 469840537 7820455936 10143 33554432000 1073741824 1073778376 140733714478768 18446744073709551615 274676611045 0 0 0 16800975 18446744073709551615 0 0 17 2 0 0 0
/proc/10618/statm: 1909291 10143 2093 9 0 1900029 0
Current children cumulated CPU time (s) 0.12
Current children cumulated vsize (KiB) 7637164

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

[startup+0.200275 s]
/proc/loadavg: 1.58 2.90 3.57 7/241 10618
/proc/meminfo: memFree=18385212/32951132 swapFree=67111528/67111528
[pid=10618] ppid=10616 vsize=7637164 CPUtime=0.28 cores=0,2
/proc/10618/stat : 10618 (java) S 10616 10618 9649 0 -1 4202496 12430 0 1 0 27 1 0 0 25 0 19 0 469840537 7820455936 11411 33554432000 1073741824 1073778376 140733714478768 18446744073709551615 274676611045 0 0 0 16800975 18446744073709551615 0 0 17 2 0 0 0
/proc/10618/statm: 1909291 11411 2177 9 0 1900029 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 7637164

Child status: 20
Real time (s): 0.239671
CPU time (s): 0.342946
CPU user time (s): 0.32295
CPU system time (s): 0.019996
CPU usage (%): 143.09
Max. virtual memory (cumulated for all children) (KiB): 7637164

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.32295
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= 12496
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 97
involuntary context switches= 25

runsolver used 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node131 at 2011-04-23 20:13:29
IDJOB=3266176
IDBENCH=87442
IDSOLVER=1611
FILE ID=node131/3266176-1303582409
RUNJOBID= node131-1303582407-10338
PBS_JOBID= 13150336
Free space on /tmp= 72004 MiB

SOLVER NAME= SAT4J core 2.3.0 SNAPSHOT 2011-02-06
BENCH NAME= SAT02/handmade/pehoushek/plainoldcnf/5cnf_3500_3500_30f1.shuffled.cnf
COMMAND LINE= java -server -XX:MaxPermSize=256m -Xms7000m -Xmx7000m -jar org.sat4j.core.jar BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3266176-1303582409/watcher-3266176-1303582409 -o /tmp/evaluation-result-3266176-1303582409/solver-3266176-1303582409 -C 2400 -W 1300 -M 7680  java -server -XX:MaxPermSize=256m -Xms7000m -Xmx7000m -jar org.sat4j.core.jar HOME/instance-3266176-1303582409.cnf

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= dfc27c12419822bebf5088f3b8f31579
RANDOM SEED=3206763

node131.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.830
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.66
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.830
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.830
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.830
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.830
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.77
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.830
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.830
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.830
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      18385352 kB
Buffers:        992872 kB
Cached:       12798700 kB
SwapCached:          0 kB
Active:        4443260 kB
Inactive:      9606688 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      18385352 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            1288 kB
Writeback:           0 kB
AnonPages:      257360 kB
Mapped:          23200 kB
Slab:           451236 kB
PageTables:       5880 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS: 22074532 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 72004 MiB
End job on node131 at 2011-04-23 20:13:29