Trace number 3492746

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 Resolution 2011-06-08OPTIMUM 0.224965 0.175513

General information on the benchmark

Name/PARTIAL-SMALLINT-LIN/wcsp/academics/
normalized-4queens_wcsp.wbo
MD5SUM1d8258c22bc483b2975ac7eb72afa9f4
Bench CategoryPARTIAL-SMALLINT-LIN (both soft and hard constraints, small integers, linear constraints)
Best result obtained on this benchmarkMOPT
Best cost obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark0.000999
Max-Satisfiable
Max-(Un)Satisfiability was proved
Best value of the cost
Optimality of the best cost was proved
Number of variables16
Total number of constraints264
Number of soft constraints260
Number of constraints which are clauses260
Number of constraints which are cardinality constraints (but not clauses)4
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint4
Top cost 1
Min constraint cost 1
Max constraint cost 1
Sum of constraints costs 260
Biggest number in a constraint 3
Number of bits of the biggest number in a constraint 2
Biggest sum of numbers in a constraint 7
Number of bits of the biggest sum of numbers3
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.07/0.08	c SAT4J: a SATisfiability library for Java (c) 2004-2010 Daniel Le Berre
0.07/0.08	c This is free software under the dual EPL/GNU LGPL licenses.
0.07/0.08	c See www.sat4j.org for details.
0.07/0.08	c version 2.3.1.v20110525
0.07/0.08	c java.runtime.name	Java(TM) SE Runtime Environment
0.07/0.08	c java.vm.name		Java HotSpot(TM) 64-Bit Server VM
0.07/0.08	c java.vm.version	19.1-b02
0.07/0.08	c java.vm.vendor	Sun Microsystems Inc.
0.07/0.08	c sun.arch.data.model	64
0.07/0.08	c java.version		1.6.0_24
0.07/0.08	c os.name		Linux
0.07/0.08	c os.version		2.6.18-164.el5
0.07/0.08	c os.arch		amd64
0.07/0.08	c Free memory 		9996466904
0.07/0.08	c Max memory 		10048897024
0.07/0.08	c Total memory 		10048897024
0.07/0.08	c Number of processors 	8
0.11/0.10	c Pseudo Boolean Optimization
0.11/0.10	c --- Begin Solver configuration ---
0.11/0.10	c org.sat4j.pb.constraints.CompetResolutionPBLongMixedWLClauseCardConstrDataStructure@761a626f
0.11/0.10	c Learn all clauses as in MiniSAT
0.11/0.10	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.11/0.10	c VSIDS like heuristics from MiniSAT using a heap lightweight component caching from RSAT taking into account the objective function
0.11/0.10	c Expensive reason simplification
0.11/0.10	c Armin Biere (Picosat) restarts strategy
0.11/0.10	c Glucose learned constraints deletion strategy
0.11/0.10	c timeout=2147483s
0.11/0.10	c DB Simplification allowed=false
0.11/0.10	c --- End Solver configuration ---
0.11/0.10	c solving HOME/instance-3492746-1307911808.wbo
0.11/0.10	c reading problem ... 
0.11/0.16	c ... done. Wall clock time 0.053s.
0.11/0.16	c #vars     276
0.11/0.16	c #constraints  529
0.11/0.16	c constraints type 
0.11/0.16	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 264
0.11/0.16	c org.sat4j.minisat.constraints.cnf.UnitClauses => 1
0.11/0.16	c org.sat4j.minisat.constraints.card.MinWatchCard => 4
0.11/0.17	c SATISFIABLE
0.11/0.17	c OPTIMIZING...
0.11/0.17	c Got one! Elapsed wall clock time (in seconds):0.062
0.11/0.17	o 0
0.11/0.17	c starts		: 1
0.11/0.17	c conflicts		: 2
0.11/0.17	c decisions		: 10
0.11/0.17	c propagations		: 287
0.11/0.17	c inspects		: 369
0.11/0.17	c shortcuts		: 0
0.11/0.17	c learnt literals	: 0
0.11/0.17	c learnt binary clauses	: 0
0.11/0.17	c learnt ternary clauses	: 1
0.11/0.17	c learnt constraints	: 2
0.11/0.17	c ignored constraints	: 0
0.11/0.17	c root simplifications	: 0
0.11/0.17	c removed literals (reason simplification)	: 1
0.11/0.17	c reason swapping (by a shorter reason)	: 0
0.11/0.17	c Calls to reduceDB	: 0
0.11/0.17	c number of reductions to clauses (during analyze)	: 0
0.11/0.17	c number of learned constraints concerned by reduction	: 0
0.11/0.17	c number of learning phase by resolution	: 0
0.11/0.17	c number of learning phase by cutting planes	: 0
0.11/0.17	c speed (assignments/second)	: 31888.88888888889
0.11/0.17	c non guided choices	8
0.11/0.17	c learnt constraints type 
0.11/0.17	c org.sat4j.minisat.constraints.cnf.LearntWLClause => 2
0.11/0.17	c constraints type 
0.11/0.17	c org.sat4j.minisat.constraints.cnf.OriginalWLClause => 264
0.11/0.17	c org.sat4j.minisat.constraints.cnf.UnitClauses => 1
0.11/0.17	c org.sat4j.minisat.constraints.card.MinWatchCard => 4
0.11/0.17	s OPTIMUM FOUND
0.11/0.17	v -x1 -x2 x3 -x4 x5 -x6 -x7 -x8 -x9 -x10 -x11 x12 -x13 x14 -x15 -x16 
0.11/0.17	c objective function=0
0.11/0.17	c Total wall clock time (in seconds): 0.064

Verifier Data 

OK	0

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.1 (svn: 989)

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 /var/tmp/evaluation-result-3492746-1307911808/watcher-3492746-1307911808 -o /var/tmp/evaluation-result-3492746-1307911808/solver-3492746-1307911808 -C 1800 -W 1900 -M 15500 java -Xms10000m -Xmx10000m -jar sat4j-pb.jar Resolution HOME/instance-3492746-1307911808.wbo 

running on 4 cores: 1,3,5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1900 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.01 2.05 1.99 2/195 9558
/proc/meminfo: memFree=329584/32950928 swapFree=67048888/67111528
[pid=9558] ppid=9556 vsize=30528 CPUtime=0 cores=1,3,5,7
/proc/9558/stat : 9558 (java) S 9556 9558 4454 0 -1 4202496 1240 0 0 0 0 0 0 0 25 0 2 0 902779628 31260672 957 33554432000 1073741824 1073778376 140736733975568 18446744073709551615 268284491749 0 0 4096 0 18446744073709551615 0 0 17 1 0 0 0
/proc/9558/statm: 7634 958 731 9 0 385 0
[pid=9558/tid=9559] ppid=9556 vsize=30540 CPUtime=0 cores=1,3,5,7
/proc/9558/task/9559/stat : 9559 (java) R 9556 9558 4454 0 -1 4202560 126 0 0 0 0 0 0 0 25 0 2 0 902779629 31272960 960 33554432000 1073741824 1073778376 140736733975568 18446744073709551615 268272688955 0 0 0 16784584 0 0 0 -1 1 0 0 0

[startup+0.0804909 s]
/proc/loadavg: 2.01 2.05 1.99 2/195 9558
/proc/meminfo: memFree=329584/32950928 swapFree=67048888/67111528
[pid=9558] ppid=9556 vsize=10473088 CPUtime=0.07 cores=1,3,5,7
/proc/9558/stat : 9558 (java) S 9556 9558 4454 0 -1 4202496 12090 0 1 0 5 2 0 0 25 0 18 0 902779628 10724442112 11782 33554432000 1073741824 1073778376 140736733975568 18446744073709551615 268284491749 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0 0
/proc/9558/statm: 2618312 11792 1772 9 0 2609046 0
[pid=9558/tid=9559] ppid=9556 vsize=10473248 CPUtime=0.06 cores=1,3,5,7
/proc/9558/task/9559/stat : 9559 (java) R 9556 9558 4454 0 -1 4202560 10898 0 1 0 5 1 0 0 25 0 18 0 902779629 10724605952 11797 33554432000 1073741824 1073778376 140736733975568 18446744073709551615 268284515787 0 4 0 16800975 0 0 0 -1 3 0 0 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 10473088

[startup+0.10049 s]
/proc/loadavg: 2.01 2.05 1.99 2/195 9558
/proc/meminfo: memFree=329584/32950928 swapFree=67048888/67111528
[pid=9558] ppid=9556 vsize=10540188 CPUtime=0.11 cores=1,3,5,7
/proc/9558/stat : 9558 (java) S 9556 9558 4454 0 -1 4202496 13169 0 1 0 9 2 0 0 25 0 18 0 902779628 10793152512 12815 33554432000 1073741824 1073778376 140736733975568 18446744073709551615 268284491749 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0 0
/proc/9558/statm: 2635047 12816 2092 9 0 2625781 0
[pid=9558/tid=9559] ppid=9556 vsize=10540188 CPUtime=0.08 cores=1,3,5,7
/proc/9558/task/9559/stat : 9559 (java) R 9556 9558 4454 0 -1 4202560 11211 0 1 0 7 1 0 0 25 0 18 0 902779629 10793152512 12816 33554432000 1073741824 1073778376 140736733975568 18446744073709551615 47779757701971 0 4 0 16800975 0 0 0 -1 3 0 0 0
Current children cumulated CPU time (s) 0.11
Current children cumulated vsize (KiB) 10540188

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

Child status: 30
Real time (s): 0.175513
CPU time (s): 0.224965
CPU user time (s): 0.19597
CPU system time (s): 0.028995
CPU usage (%): 128.176
Max. virtual memory (cumulated for all children) (KiB): 10540188

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.19597
system time used= 0.028995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 13982
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= 112
involuntary context switches= 7

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node122 at 2011-06-12 22:50:08
IDJOB=3492746
IDBENCH=79353
IDSOLVER=1982
FILE ID=node122/3492746-1307911808
RUNJOBID= node122-1307908902-7264
PBS_JOBID= 13559584
Free space on /var/tmp= 2884 MiB

SOLVER NAME= Sat4j Resolution 2011-06-08
BENCH NAME= PB10/normalized-PB10/PARTIAL-SMALLINT-LIN/wcsp/academics/normalized-4queens_wcsp.wbo
COMMAND LINE= java -Xms10000m -Xmx10000m -jar sat4j-pb.jar Resolution BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /var/tmp/evaluation-result-3492746-1307911808/watcher-3492746-1307911808 -o /var/tmp/evaluation-result-3492746-1307911808/solver-3492746-1307911808 -C 1800 -W 1900 -M 15500  java -Xms10000m -Xmx10000m -jar sat4j-pb.jar Resolution HOME/instance-3492746-1307911808.wbo

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 1d8258c22bc483b2975ac7eb72afa9f4
RANDOM SEED=1408663068

node122.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		: 2666.820
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	: 5333.64
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		: 2666.820
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		: 2666.820
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	: 5332.75
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		: 2666.820
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	: 5332.83
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		: 2666.820
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	: 5332.75
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		: 2666.820
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		: 2666.820
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		: 2666.820
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	: 5332.97
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:        330236 kB
Buffers:         66804 kB
Cached:       30385088 kB
SwapCached:      14964 kB
Active:       16573528 kB
Inactive:     15095880 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:        330236 kB
SwapTotal:    67111528 kB
SwapFree:     67048888 kB
Dirty:             436 kB
Writeback:           0 kB
AnonPages:     1215172 kB
Mapped:          17372 kB
Slab:           884552 kB
PageTables:       7316 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 10550908 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 /var/tmp at the end= 2884 MiB
End job on node122 at 2011-06-12 22:50:09