Trace number 2699515

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 PB CuttingPlanes 2.2.0 2010-05-26Wrong UNSAT 0.265958 0.210204

General information on the benchmark

Name/PARTIAL-SMALLINT-LIN/wcsp/academics/
normalized-8wqueens_wcsp.wbo
MD5SUMc761615988dcb65c5397adcfc7124c5d
Bench CategoryPARTIAL-SMALLINT-LIN (both soft and hard constraints, small integers, linear constraints)
Best result obtained on this benchmarkMOPT
Best cost obtained on this benchmark2
Best CPU time to get the best result obtained on this benchmark0.001999
Max-Satisfiable
Max-(Un)Satisfiability was proved
Best value of the cost
Optimality of the best cost was proved
Number of variables64
Total number of constraints560
Number of soft constraints552
Number of constraints which are clauses552
Number of constraints which are cardinality constraints (but not clauses)8
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint8
Top cost 9
Min constraint cost 1
Max constraint cost 9
Sum of constraints costs 4584
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 9
Number of bits of the biggest sum of numbers4
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

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 version 2.2.0.v20100526
0.00/0.07	c java.runtime.name	Java(TM) SE Runtime Environment
0.00/0.07	c java.vm.name		Java HotSpot(TM) Server VM
0.00/0.07	c java.vm.version	11.2-b01
0.00/0.07	c java.vm.vendor	Sun Microsystems Inc.
0.00/0.07	c sun.arch.data.model	32
0.00/0.07	c java.version		1.6.0_12
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		i386
0.00/0.07	c Free memory 		1393557488
0.00/0.07	c Max memory 		1395916800
0.00/0.07	c Total memory 		1395916800
0.00/0.07	c Number of processors 	8
0.11/0.10	c Pseudo Boolean Optimization
0.11/0.10	c Cutting planes based inference (org.sat4j.pb.core.PBSolverCP)
0.11/0.10	c --- Begin Solver configuration ---
0.11/0.10	c Stops conflict analysis at the first Unique Implication Point
0.11/0.10	c org.sat4j.pb.constraints.PBMaxClauseCardConstrDataStructure@1c1ea29
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 phase appearing in latest learned clause taking into account the objective function
0.11/0.10	c No 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-2699515-1278533779.wbo
0.11/0.10	c reading problem ... 
0.11/0.18	c ... done. Wall clock time 0.074s.
0.11/0.18	c #vars     616
0.11/0.18	c #constraints  1073
0.11/0.18	c constraints type 
0.11/0.18	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 8
0.11/0.18	c org.sat4j.pb.constraints.pb.MinWatchCardPB => 512
0.11/0.18	c org.sat4j.pb.constraints.pb.MaxWatchPb => 1
0.24/0.20	c starts		: 1
0.24/0.20	c conflicts		: 2
0.24/0.20	c decisions		: 49
0.24/0.20	c propagations		: 617
0.24/0.20	c inspects		: 134
0.24/0.20	c learnt literals	: 0
0.24/0.20	c learnt binary clauses	: 0
0.24/0.20	c learnt ternary clauses	: 0
0.24/0.20	c learnt clauses	: 1
0.24/0.20	c ignored clauses	: 0
0.24/0.20	c root simplifications	: 0
0.24/0.20	c removed literals (reason simplification)	: 0
0.24/0.20	c reason swapping (by a shorter reason)	: 0
0.24/0.20	c Calls to reduceDB	: 0
0.24/0.20	c number of reductions to clauses (during analyze)	: 0
0.24/0.20	c number of learned constraints concerned by reduction	: 0
0.24/0.20	c number of learning phase by resolution	: 0
0.24/0.20	c number of learning phase by cutting planes	: 0
0.24/0.20	c speed (assignments/second)	: 24680.0
0.24/0.20	c non guided choices	1
0.24/0.20	c learnt constraints type 
0.24/0.20	c org.sat4j.pb.constraints.pb.MaxWatchPb => 1
0.24/0.20	c constraints type 
0.24/0.20	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 8
0.24/0.20	c org.sat4j.pb.constraints.pb.MinWatchCardPB => 512
0.24/0.20	c org.sat4j.pb.constraints.pb.MaxWatchPb => 1
0.24/0.20	s UNSATISFIABLE
0.24/0.20	c Total wall clock time (in seconds): 0.1

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2699515-1278533779/watcher-2699515-1278533779 -o /tmp/evaluation-result-2699515-1278533779/solver-2699515-1278533779 -C 1800 -W 2000 -M 3800 java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar CuttingPlanes HOME/instance-2699515-1278533779.wbo 

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): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 3891200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 3942400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.00 0.00 0.00 2/173 19251
/proc/meminfo: memFree=30020140/32950928 swapFree=67111528/67111528
[pid=19251] ppid=19249 vsize=13164 CPUtime=0
/proc/19251/stat : 19251 (java) R 19249 19251 19207 0 -1 4194304 874 0 0 0 0 0 0 0 17 0 1 0 21591743 13479936 395 4089446400 134512640 134550932 4294340992 18446744073709551615 7771781 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/19251/statm: 3291 401 143 10 0 1121 0

[startup+0.085862 s]
/proc/loadavg: 0.00 0.00 0.00 2/173 19251
/proc/meminfo: memFree=30020140/32950928 swapFree=67111528/67111528
[pid=19251] ppid=19249 vsize=1529288 CPUtime=0.07
/proc/19251/stat : 19251 (java) S 19249 19251 19207 0 -1 4202496 4804 0 1 0 6 1 0 0 17 0 18 0 21591743 1565990912 4241 4089446400 134512640 134550932 4294340992 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 5 0 0 0
/proc/19251/statm: 382322 4245 1325 10 0 379624 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1529288

[startup+0.100857 s]
/proc/loadavg: 0.00 0.00 0.00 2/173 19251
/proc/meminfo: memFree=30020140/32950928 swapFree=67111528/67111528
[pid=19251] ppid=19249 vsize=1529968 CPUtime=0.11
/proc/19251/stat : 19251 (java) S 19249 19251 19207 0 -1 4202496 5171 0 1 0 10 1 0 0 17 0 18 0 21591743 1566687232 4608 4089446400 134512640 134550932 4294340992 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 5 0 0 0
/proc/19251/statm: 382492 4608 1347 10 0 379794 0
Current children cumulated CPU time (s) 0.11
Current children cumulated vsize (KiB) 1529968

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

[startup+0.200839 s]
/proc/loadavg: 0.00 0.00 0.00 2/173 19251
/proc/meminfo: memFree=30020140/32950928 swapFree=67111528/67111528
[pid=19251] ppid=19249 vsize=1530596 CPUtime=0.24
/proc/19251/stat : 19251 (java) S 19249 19251 19207 0 -1 4202496 5920 0 1 0 23 1 0 0 17 0 19 0 21591743 1567330304 5357 4089446400 134512640 134550932 4294340992 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 5 0 0 0
/proc/19251/statm: 382649 5357 1381 10 0 379951 0
Current children cumulated CPU time (s) 0.24
Current children cumulated vsize (KiB) 1530596

Child status: 20
Real time (s): 0.210204
CPU time (s): 0.265958
CPU user time (s): 0.244962
CPU system time (s): 0.020996
CPU usage (%): 126.524
Max. virtual memory (cumulated for all children) (KiB): 1530596

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.244962
system time used= 0.020996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5961
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= 154
involuntary context switches= 57

runsolver used 0.000999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node127 at 2010-07-07 22:16:19
IDJOB=2699515
IDBENCH=79351
IDSOLVER=1203
FILE ID=node127/2699515-1278533779
PBS_JOBID= 11239223
Free space on /tmp= 73200 MiB

SOLVER NAME= SAT4J PB CuttingPlanes 2.2.0 2010-05-26
BENCH NAME= PB10/normalized-PB10/PARTIAL-SMALLINT-LIN/wcsp/academics/normalized-8wqueens_wcsp.wbo
COMMAND LINE= java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar CuttingPlanes BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2699515-1278533779/watcher-2699515-1278533779 -o /tmp/evaluation-result-2699515-1278533779/solver-2699515-1278533779 -C 1800 -W 2000 -M 3800  java6 -server -Xmx1350m -Xms1350m -jar HOME/sat4j-pb.jar CuttingPlanes HOME/instance-2699515-1278533779.wbo

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 3800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= c761615988dcb65c5397adcfc7124c5d
RANDOM SEED=1528477864

node127.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		: 2666.804
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	: 5333.60
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		: 2666.804
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	: 5424.67
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		: 2666.804
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		: 2666.804
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		: 2666.804
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		: 2666.804
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	: 5332.68
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		: 2666.804
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	: 5332.82
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		: 2666.804
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      30020652 kB
Buffers:        136024 kB
Cached:        2577796 kB
SwapCached:          0 kB
Active:        1117572 kB
Inactive:      1658400 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      30020652 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             408 kB
Writeback:           0 kB
AnonPages:       62228 kB
Mapped:          14356 kB
Slab:            91488 kB
PageTables:       4900 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   183412 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= 73200 MiB
End job on node127 at 2010-07-07 22:16:20