Trace number 3261248

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 0.572912 0.359751

General information on the benchmark

Namecrafted/skvortsov/battleship/
battleship-5-8-unsat.cnf
MD5SUMa99041ebe268e7737dedbe7cf3f9fdb4
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.012997
Satisfiable
(Un)Satisfiability was proved
Number of variables40
Number of clauses105
Sum of the clauses size360
Maximum clause length8
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 280
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 525

Solver Data 

0.00/0.07	c SAT4J: a SATisfiability library for Java (c) 2004-2010 Daniel Le Berre
0.00/0.07	c This is free software under the dual EPL/GNU LGPL licenses.
0.00/0.07	c See www.sat4j.org for details.
0.00/0.07	c no version file found!!!
0.00/0.07	c java.runtime.name	Java(TM) SE Runtime Environment
0.00/0.07	c java.vm.name		Java HotSpot(TM) 64-Bit Server VM
0.00/0.07	c java.vm.version	19.1-b02
0.00/0.07	c java.vm.vendor	Sun Microsystems Inc.
0.00/0.07	c sun.arch.data.model	64
0.00/0.07	c java.version		1.6.0_24
0.00/0.07	c os.name		Linux
0.00/0.07	c os.version		2.6.18-164.el5
0.00/0.07	c os.arch		amd64
0.00/0.07	c Free memory 		6997539544
0.00/0.07	c Max memory 		7034241024
0.00/0.07	c Total memory 		7034241024
0.00/0.07	c Number of processors 	8
0.00/0.09	c --- Begin Solver configuration ---
0.00/0.09	c org.sat4j.minisat.constraints.MixedDataStructureDanielWL@2fe4cbc4
0.00/0.09	c Learn all clauses as in MiniSAT
0.00/0.09	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.1 initConflictBound=100 
0.00/0.09	c VSIDS like heuristics from MiniSAT using a heap lightweight component caching from RSAT
0.00/0.09	c Expensive reason simplification
0.00/0.09	c Armin Biere (Picosat) restarts strategy
0.00/0.09	c Glucose learned constraints deletion strategy
0.00/0.09	c timeout=2147483647s
0.00/0.09	c DB Simplification allowed=true
0.00/0.09	c --- End Solver configuration ---
0.00/0.09	c solving HOME/instance-3261248-1303539720.cnf
0.00/0.09	c reading problem ... 
0.10/0.09	c ... done. Wall clock time 0.0060s.
0.10/0.09	c #vars     40
0.10/0.09	c #constraints  105
0.10/0.09	c constraints type 
0.10/0.09	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 25
0.10/0.09	c org.sat4j.minisat.constraints.cnf.OriginalBinaryClause => 80
0.49/0.34	c starts		: 22
0.49/0.34	c conflicts		: 2605
0.49/0.34	c decisions		: 3154
0.49/0.34	c propagations		: 29892
0.49/0.34	c inspects		: 1604543
0.49/0.34	c shortcuts		: 0
0.49/0.34	c learnt literals	: 5
0.49/0.34	c learnt binary clauses	: 8
0.49/0.34	c learnt ternary clauses	: 17
0.49/0.34	c learnt constraints	: 2599
0.49/0.34	c ignored constraints	: 0
0.49/0.34	c root simplifications	: 26
0.49/0.34	c removed literals (reason simplification)	: 6554
0.49/0.34	c reason swapping (by a shorter reason)	: 0
0.49/0.34	c Calls to reduceDB	: 0
0.49/0.34	c speed (assignments/second)	: 120532.25806451614
0.49/0.34	c non guided choices	27
0.49/0.34	c learnt constraints type 
0.49/0.34	c org.sat4j.minisat.constraints.cnf.LearntWLClause => 41
0.49/0.34	c constraints type 
0.49/0.34	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 25
0.49/0.34	c org.sat4j.minisat.constraints.cnf.OriginalBinaryClause => 80
0.49/0.34	s UNSATISFIABLE
0.49/0.34	c Total wall clock time (in seconds) : 0.254

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-3261248-1303539720/watcher-3261248-1303539720 -o /tmp/evaluation-result-3261248-1303539720/solver-3261248-1303539720 -C 2400 -W 1300 -M 7680 java -server -XX:MaxPermSize=256m -Xms7000m -Xmx7000m -jar org.sat4j.core.jar HOME/instance-3261248-1303539720.cnf 

running on 2 cores: 5,7

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: 1.64 0.41 0.14 4/243 935
/proc/meminfo: memFree=20295132/32951124 swapFree=67110396/67111528
[pid=935] ppid=933 vsize=23028 CPUtime=0 cores=5,7
/proc/935/stat : 935 (java) R 933 935 709 0 -1 4202496 949 0 0 0 0 0 0 0 23 0 1 0 544202701 23580672 693 33554432000 1073741824 1073778376 140734876331888 18446744073709551615 224279963537 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/935/statm: 5757 693 510 9 0 124 0
[pid=935/tid=936] ppid=933 vsize=31608 CPUtime=0 cores=5,7
/proc/935/task/936/stat : 936 (java) R 933 935 709 0 -1 4202560 168 0 0 0 0 0 0 0 25 0 2 0 544202701 32366592 999 33554432000 1073741824 1073778376 140734876331888 18446744073709551615 224284925584 0 0 0 16784584 0 0 0 -1 5 0 0 0

[startup+0.096357 s]
/proc/loadavg: 1.64 0.41 0.14 4/243 935
/proc/meminfo: memFree=20295132/32951124 swapFree=67110396/67111528
[pid=935] ppid=933 vsize=7635964 CPUtime=0.1 cores=5,7
/proc/935/stat : 935 (java) S 933 935 709 0 -1 4202496 10327 0 1 0 9 1 0 0 23 0 18 0 544202701 7819227136 10024 33554432000 1073741824 1073778376 140734876331888 18446744073709551615 224296728549 0 0 0 16800975 18446744073709551615 0 0 17 5 0 0 0
/proc/935/statm: 1908991 10025 2093 9 0 1899729 0
[pid=935/tid=936] ppid=933 vsize=7635964 CPUtime=0.08 cores=5,7
/proc/935/task/936/stat : 936 (java) R 933 935 709 0 -1 4202560 8586 0 1 0 7 1 0 0 18 0 18 0 544202701 7819227136 10025 33554432000 1073741824 1073778376 140734876331888 18446744073709551615 47970173218821 0 4 0 16800975 0 0 0 -1 5 0 0 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 7635964

[startup+0.100352 s]
/proc/loadavg: 1.64 0.41 0.14 4/243 935
/proc/meminfo: memFree=20295132/32951124 swapFree=67110396/67111528
[pid=935] ppid=933 vsize=7636992 CPUtime=0.1 cores=5,7
/proc/935/stat : 935 (java) S 933 935 709 0 -1 4202496 10363 0 1 0 9 1 0 0 23 0 19 0 544202701 7820279808 10060 33554432000 1073741824 1073778376 140734876331888 18446744073709551615 224296728549 0 0 0 16800975 18446744073709551615 0 0 17 5 0 0 0
/proc/935/statm: 1909248 10060 2093 9 0 1899986 0
[pid=935/tid=936] ppid=933 vsize=7636992 CPUtime=0.08 cores=5,7
/proc/935/task/936/stat : 936 (java) R 933 935 709 0 -1 4202560 8614 0 1 0 7 1 0 0 19 0 19 0 544202701 7820279808 10060 33554432000 1073741824 1073778376 140734876331888 18446744073709551615 46912505227951 0 4 0 16800975 0 0 0 -1 5 0 0 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 7636992

[startup+0.300322 s]
/proc/loadavg: 1.64 0.41 0.14 4/243 935
/proc/meminfo: memFree=20295132/32951124 swapFree=67110396/67111528
[pid=935] ppid=933 vsize=7640312 CPUtime=0.49 cores=5,7
/proc/935/stat : 935 (java) S 933 935 709 0 -1 4202496 11925 0 1 0 48 1 0 0 23 0 19 0 544202701 7823679488 11160 33554432000 1073741824 1073778376 140734876331888 18446744073709551615 224296728549 0 0 0 16800975 18446744073709551615 0 0 17 5 0 0 0
/proc/935/statm: 1910078 11160 2198 9 0 1900816 0
[pid=935/tid=936] ppid=933 vsize=7640312 CPUtime=0.28 cores=5,7
/proc/935/task/936/stat : 936 (java) R 933 935 709 0 -1 4202560 8761 0 1 0 27 1 0 0 19 0 19 0 544202701 7823679488 11160 33554432000 1073741824 1073778376 140734876331888 18446744073709551615 46912505510567 0 4 0 16800975 0 0 0 -1 5 0 0 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 7640312

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

Child status: 20
Real time (s): 0.359751
CPU time (s): 0.572912
CPU user time (s): 0.554915
CPU system time (s): 0.017997
CPU usage (%): 159.252
Max. virtual memory (cumulated for all children) (KiB): 7640312

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.554915
system time used= 0.017997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 11982
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= 113
involuntary context switches= 27

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node118 at 2011-04-23 08:22:00
IDJOB=3261248
IDBENCH=83218
IDSOLVER=1611
FILE ID=node118/3261248-1303539720
RUNJOBID= node118-1303539684-730
PBS_JOBID= 13143120
Free space on /tmp= 71740 MiB

SOLVER NAME= SAT4J core 2.3.0 SNAPSHOT 2011-02-06
BENCH NAME= SAT11/crafted/skvortsov/battleship/battleship-5-8-unsat.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-3261248-1303539720/watcher-3261248-1303539720 -o /tmp/evaluation-result-3261248-1303539720/solver-3261248-1303539720 -C 2400 -W 1300 -M 7680  java -server -XX:MaxPermSize=256m -Xms7000m -Xmx7000m -jar org.sat4j.core.jar HOME/instance-3261248-1303539720.cnf

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

MD5SUM BENCH= a99041ebe268e7737dedbe7cf3f9fdb4
RANDOM SEED=1944639852

node118.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		: 2666.842
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	: 5333.68
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		: 2666.842
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		: 2666.842
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	: 5332.74
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		: 2666.842
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		: 2666.842
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	: 5332.68
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		: 2666.842
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		: 2666.842
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		: 2666.842
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	: 5374.59
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      20295272 kB
Buffers:       1854788 kB
Cached:        9964300 kB
SwapCached:        600 kB
Active:        8691168 kB
Inactive:      3442336 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20295272 kB
SwapTotal:    67111528 kB
SwapFree:     67110396 kB
Dirty:            2772 kB
Writeback:           0 kB
AnonPages:      313140 kB
Mapped:          23484 kB
Slab:           458068 kB
PageTables:       6512 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 22036876 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71740 MiB
End job on node118 at 2011-04-23 08:22:01